Pub Date : 2026-01-28DOI: 10.1016/j.jechem.2026.01.038
Jiawei Shi , Huawei He , Weiwei Cai , Jing Li , Anantharaj Sengeni , Ligang Feng
The unclear decisive factors make it tricky to realize high activity and selectivity for the methanol oxidation reaction (MOR) at an industrial-level current. Using Ni-based hydroxides as model catalysts, we reveal that Ni sites undergo a progressive dehydrogenation from NiO2H2 to low-hydrogen-coverage NiO2H1−x species, which serve as the active centers under high current densities. This transformation shifts the rate-determining step from catalyst dehydrogenation (NOR mechanism) to *CH3O dehydrogenation, while the adsorption behavior of *HCOO dictates product selectivity. Guided by these insights, a Fe-NiCo ternary hydroxide catalyst was rationally designed to modulate intermediate adsorption energetics. The optimized Fe-NiCo-TH catalyst delivers industrially relevant MOR performance, achieving >500 mA cm−2 at 1.47 V, >90% formate selectivity, and excellent long-term durability. This study establishes hydrogen-coverage-dependent active sites as a decisive factor in MOR and provides a mechanistic foundation for designing Ni-based electrocatalysts for coupled hydrogen production.
由于决定因素不明确，在工业水平电流下实现甲醇氧化反应（MOR）的高活性和选择性非常困难。使用Ni基氢氧化物作为模型催化剂，我们发现Ni位点经历了从NiO2H2到低氢覆盖NiO2H1−x的递进脱氢过程，后者在高电流密度下充当活性中心。这种转变将速率决定步骤从催化剂脱氢（NOR机制）转变为* ch30脱氢，而*HCOO的吸附行为决定了产物的选择性。在这些见解的指导下，合理设计了Fe-NiCo三元氢氧化物催化剂来调节中间吸附能量。优化后的Fe-NiCo-TH催化剂具有工业相关的MOR性能，在1.47 V下可达到500 mA cm - 2, 90%甲酸选择性，以及出色的长期耐用性。该研究确定了氢覆盖相关活性位点是MOR的决定性因素，为设计偶联制氢镍基电催化剂提供了机理基础。
{"title":"Hydrogen-coverage-dependent Ni active sites govern activity and selectivity in large-current methanol oxidation reaction","authors":"Jiawei Shi , Huawei He , Weiwei Cai , Jing Li , Anantharaj Sengeni , Ligang Feng","doi":"10.1016/j.jechem.2026.01.038","DOIUrl":"10.1016/j.jechem.2026.01.038","url":null,"abstract":"<div><div>The unclear decisive factors make it tricky to realize high activity and selectivity for the methanol oxidation reaction (MOR) at an industrial-level current. Using Ni-based hydroxides as model catalysts, we reveal that Ni sites undergo a progressive dehydrogenation from NiO<sub>2</sub>H<sub>2</sub> to low-hydrogen-coverage NiO<sub>2</sub>H<sub>1−</sub><em><sub>x</sub></em> species, which serve as the active centers under high current densities. This transformation shifts the rate-determining step from catalyst dehydrogenation (NOR mechanism) to *CH<sub>3</sub>O dehydrogenation, while the adsorption behavior of *HCOO dictates product selectivity. Guided by these insights, a Fe-NiCo ternary hydroxide catalyst was rationally designed to modulate intermediate adsorption energetics. The optimized Fe-NiCo-TH catalyst delivers industrially relevant MOR performance, achieving >500 mA cm<sup>−2</sup> at 1.47 V, >90% formate selectivity, and excellent long-term durability. This study establishes hydrogen-coverage-dependent active sites as a decisive factor in MOR and provides a mechanistic foundation for designing Ni-based electrocatalysts for coupled hydrogen production.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 625-630"},"PeriodicalIF":14.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-19DOI: 10.1016/j.jechem.2026.01.017
Zhipeng He , Enhua Dong , Cheng Li , Jiaxuan Liu , Yutong Jing , Mingyu Yin , Lei Wang , Yuhang Zhang , Shen Liu , Dianlong Wang , Pengfei Yan , Huakun Liu , Shixue Dou , Bo Wang
Solid polymer electrolytes (SPEs) offered enhanced safety and superior lithium dendrite suppression compared to liquid electrolytes, yet suffered from inadequate ionic conductivity and poor interfacial stability. Phase-separated polymer electrolytes (PSPEs) partially addressed these limitations but introduced dual-interface challenges, including insufficient electrode contact and inhomogeneous phase distribution. This work presented a novel BSF composite electrolyte fabricated through in situ polymerization of a PSPEs system comprising butyl acrylate (BA), succinonitrile (SN), and LiTFSI, with fluoroethylene carbonate (FEC) as a critical additive. This design simultaneously enhanced the compatibility between the polymerized BA matrix and the SN liquid phase, established continuous ion transport pathways, improved interfacial wettability, and generated stable LiF-rich interphases at both electrodes. The structural evolution and interfacial chemistry were systematically verified through Raman mapping, HAADF-STEM, and TOF-SIMS analyses. Electrochemical evaluation demonstrated exceptional performance. The constructed Li|BSF|Li symmetric cells achieved stable cycling for over 2000 h at 0.5 mA/cm2 with a critical current density (CCD) of 4.2 mA/cm2. Moreover, Li|BSF|NCM811 full cells with a high mass loading (18 mg/cm2) retained 80.5% of their capacity after 100 cycles. These results represented state-of-the-art performance among polymer-based solid electrolytes, underscoring the potential of the BSF system for high-energy–density lithium metal batteries.
{"title":"Phase-separated polymer electrolytes with dual-interface enhancement effect for high-loading lithium metal batteries","authors":"Zhipeng He , Enhua Dong , Cheng Li , Jiaxuan Liu , Yutong Jing , Mingyu Yin , Lei Wang , Yuhang Zhang , Shen Liu , Dianlong Wang , Pengfei Yan , Huakun Liu , Shixue Dou , Bo Wang","doi":"10.1016/j.jechem.2026.01.017","DOIUrl":"10.1016/j.jechem.2026.01.017","url":null,"abstract":"<div><div>Solid polymer electrolytes (SPEs) offered enhanced safety and superior lithium dendrite suppression compared to liquid electrolytes, yet suffered from inadequate ionic conductivity and poor interfacial stability. Phase-separated polymer electrolytes (PSPEs) partially addressed these limitations but introduced dual-interface challenges, including insufficient electrode contact and inhomogeneous phase distribution. This work presented a novel BSF composite electrolyte fabricated through in situ polymerization of a PSPEs system comprising butyl acrylate (BA), succinonitrile (SN), and LiTFSI, with fluoroethylene carbonate (FEC) as a critical additive. This design simultaneously enhanced the compatibility between the polymerized BA matrix and the SN liquid phase, established continuous ion transport pathways, improved interfacial wettability, and generated stable LiF-rich interphases at both electrodes. The structural evolution and interfacial chemistry were systematically verified through Raman mapping, HAADF-STEM, and TOF-SIMS analyses. Electrochemical evaluation demonstrated exceptional performance. The constructed Li|BSF|Li symmetric cells achieved stable cycling for over 2000 h at 0.5 mA/cm<sup>2</sup> with a critical current density (CCD) of 4.2 mA/cm<sup>2</sup>. Moreover, Li|BSF|NCM811 full cells with a high mass loading (18 mg/cm<sup>2</sup>) retained 80.5% of their capacity after 100 cycles. These results represented state-of-the-art performance among polymer-based solid electrolytes, underscoring the potential of the BSF system for high-energy–density lithium metal batteries.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 504-513"},"PeriodicalIF":14.9,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-19DOI: 10.1016/j.jechem.2026.01.016
Ting Xu , Zexi Zhang , Shengliang Qi , Hefeng Zhang , Junhui Wang , Yuying Gao , Wenjun Fan , Chenghua Sun , Xu Zong , Lianzhou Wang
Intensifying the electronic metal-support interaction (EMSI) between organometal halide perovskites (OMHPs) photocatalysts and hydrogen evolution reaction (HER) co-catalyst is crucial for realizing efficient interfacial charge transfer and solar-to-hydrogen (STH) conversion. Although atomically dispersed catalysts (ADCs) are prone to form stronger EMSI than nanoparticles with support, assembling ADCs on OMHPs remains a great challenge due to the ionic nature and thermal instability of OMHPs. Herein, we realize the design of two-dimensional (2D) OMHP PMA2PbI4 (PMA = C6H5(CH2)NH3+) loaded with non-noble metal-based ADCs, namely tungsten ADCs (WADCs), for the first time. We show that WADCs coordinated with two sulfur and two oxygen atoms are anchored on the surface of PMA2PbI4 via a W–O–Pb link. The resulting WADCs-decorated PMA2PbI4 (WADCs/S-PMA2PbI4) exhibits an extraordinary interfacial charge transfer efficiency of 94.7%, which is much higher than that of Pt/PMA2PbI4 (61.7%). Moreover, WADCs can effectively extend the lifetime of hot carriers and work as the active sites for HER. Consequently, WADCs/S-PMA2PbI4 shows a photocatalytic HER activity superior to that of Pt/PMA2PbI4 and 30 times that of bare PMA2PbI4 with a record turnover frequency (TOF) of 516.3 h−1 per W atom. This work opens a new avenue for designing cost-effective perovskite-based catalysts for solar hydrogen production.
{"title":"Assembling atomically dispersed tungsten co-catalysts on organometal halide perovskite for superior interfacial charge transfer and photocatalytic hydrogen production","authors":"Ting Xu , Zexi Zhang , Shengliang Qi , Hefeng Zhang , Junhui Wang , Yuying Gao , Wenjun Fan , Chenghua Sun , Xu Zong , Lianzhou Wang","doi":"10.1016/j.jechem.2026.01.016","DOIUrl":"10.1016/j.jechem.2026.01.016","url":null,"abstract":"<div><div>Intensifying the electronic metal-support interaction (EMSI) between organometal halide perovskites (OMHPs) photocatalysts and hydrogen evolution reaction (HER) co-catalyst is crucial for realizing efficient interfacial charge transfer and solar-to-hydrogen (STH) conversion. Although atomically dispersed catalysts (ADCs) are prone to form stronger EMSI than nanoparticles with support, assembling ADCs on OMHPs remains a great challenge due to the ionic nature and thermal instability of OMHPs. Herein, we realize the design of two-dimensional (2D) OMHP PMA<sub>2</sub>PbI<sub>4</sub> (PMA = C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)NH<sub>3</sub><sup>+</sup>) loaded with non-noble metal-based ADCs, namely tungsten ADCs (W<sub>ADCs</sub>), for the first time. We show that W<sub>ADCs</sub> coordinated with two sulfur and two oxygen atoms are anchored on the surface of PMA<sub>2</sub>PbI<sub>4</sub> via a W–O–Pb link. The resulting W<sub>ADCs</sub>-decorated PMA<sub>2</sub>PbI<sub>4</sub> (W<sub>ADCs</sub>/S-PMA<sub>2</sub>PbI<sub>4</sub>) exhibits an extraordinary interfacial charge transfer efficiency of 94.7%, which is much higher than that of Pt/PMA<sub>2</sub>PbI<sub>4</sub> (61.7%). Moreover, W<sub>ADCs</sub> can effectively extend the lifetime of hot carriers and work as the active sites for HER. Consequently, W<sub>ADCs</sub>/S-PMA<sub>2</sub>PbI<sub>4</sub> shows a photocatalytic HER activity superior to that of Pt/PMA<sub>2</sub>PbI<sub>4</sub> and 30 times that of bare PMA<sub>2</sub>PbI<sub>4</sub> with a record turnover frequency (TOF) of 516.3 h<sup>−1</sup> per W atom. This work opens a new avenue for designing cost-effective perovskite-based catalysts for solar hydrogen production.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 525-534"},"PeriodicalIF":14.9,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The widespread adoption of lithium-metal batteries (LMBs) faces a critical challenge: the absence of electrolytes that can simultaneously withstand low-temperature and high-voltage operating conditions. To address this fundamental limitation, we introduce a mechanistically guided electrolyte design strategy based on a molecularly engineered hybrid-solvation structure combined with a synergistic dual-salt system. Our approach uniquely employs a fluorinated solvent mixture—comprising fluoroethylene carbonate (FEC) and moderately coordinating fluorinated ethyl acetate (TFEA)—to reconfigure the Li+ solvation environment. This tailored solvation sheath facilitates anion participation and achieves an optimal balance between contact ion pairs (CIP) and aggregates (AGG), thereby significantly lowering the Li+ desolvation energy barrier. Furthermore, the incorporation of a LiFSI-LiClO4 dual-salt formulation works in concert to construct highly conductive LiF-rich interphases on both electrodes: a stable solid-electrolyte interphase (SEI) on the Li anode and a robust cathode-electrolyte interphase (CEI) under high voltages. As a result, Li||NCM811 cells exhibit excellent cycling stability from room temperature to −20 °C, together with high capacity retention at high discharge rates (up to 3 C) under a moderate charging rate (0.5 C) and stable operation up to 4.7 V, substantially outperforming conventional single-salt electrolytes. This work establishes a transferrable solvation-interphase design paradigm that links coordination chemistry to interfacial stability, advancing LMBs toward practical, high-energy, wide-temperature deployment.
{"title":"Engineering dual-salt hybrid-solvation electrolytes with moderate coordination: enabling low-temperature kinetics and high-voltage stability in lithium batteries","authors":"Jiayue Peng , Yuwei Li , Canfu Zhang , Saisai Qiu , Shijie Cheng , Jia Xie","doi":"10.1016/j.jechem.2026.01.019","DOIUrl":"10.1016/j.jechem.2026.01.019","url":null,"abstract":"<div><div>The widespread adoption of lithium-metal batteries (LMBs) faces a critical challenge: the absence of electrolytes that can simultaneously withstand low-temperature and high-voltage operating conditions. To address this fundamental limitation, we introduce a mechanistically guided electrolyte design strategy based on a molecularly engineered hybrid-solvation structure combined with a synergistic dual-salt system. Our approach uniquely employs a fluorinated solvent mixture—comprising fluoroethylene carbonate (FEC) and moderately coordinating fluorinated ethyl acetate (TFEA)—to reconfigure the Li<sup>+</sup> solvation environment. This tailored solvation sheath facilitates anion participation and achieves an optimal balance between contact ion pairs (CIP) and aggregates (AGG), thereby significantly lowering the Li<sup>+</sup> desolvation energy barrier. Furthermore, the incorporation of a LiFSI-LiClO<sub>4</sub> dual-salt formulation works in concert to construct highly conductive LiF-rich interphases on both electrodes: a stable solid-electrolyte interphase (SEI) on the Li anode and a robust cathode-electrolyte interphase (CEI) under high voltages. As a result, Li||NCM811 cells exhibit excellent cycling stability from room temperature to −20 °C, together with high capacity retention at high discharge rates (up to 3 C) under a moderate charging rate (0.5 C) and stable operation up to 4.7 V, substantially outperforming conventional single-salt electrolytes. This work establishes a transferrable solvation-interphase design paradigm that links coordination chemistry to interfacial stability, advancing LMBs toward practical, high-energy, wide-temperature deployment.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 566-577"},"PeriodicalIF":14.9,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-19DOI: 10.1016/j.jechem.2026.01.013
Fei-Fei Lu , Ru-Yi Hou , Qi Ma , Jia-Hong Li , Chang-Jiu Li , Venkataraman Thangadurai , Cheng-Xin Li
Metal-supported solid oxide fuel cells (MS-SOFCs) offer superior mechanical strength and fast start-up, but the mismatch between metal and cathode (oxygen electrode) components poses challenges for developing compatible, high-activity cathodes at intermediate-to-low temperatures (IL-T). Recently, cobalt-free cathode materials have attracted significant attention, especially donor-doped SrFeO3−δ. To further improve their redox performance at IL-T, density functional theory (DFT) calculations were employed in this study to design Cu-doped SrFe0.9Nb0.1O3−δ cathodes, revealing the correlation between Cu-doping and lattice distortion. DFT results indicate that moderate Cu-doping at the B site promotes defect formation and effectively reduces the oxygen vacancy formation energy of the parent SrFe0.9Nb0.1O3−δ, while excessive Cu-doping limits the oxygen vacancy formation. Guided by theoretical insights, SrFe0.9−xNb0.1CuxO3−δ (SFNCx, x = 0, 0.05, 0.10, 0.15, and 0.20) materials were synthesized, and experimental results further support the DFT conclusions. The optimized SFNC10 composition exhibited the highest oxygen vacancy concentration and achieved a polarization resistance of 0.15 Ω cm2 at 650 °C. Moreover, this work provides the first demonstration of the SFNC10 cathode applied in an MS-SOFC, with the configuration of FeCr||NiO-GDC||CoGDC||SFNC10, operating stably at 200 mA cm−2 for over 60 h and delivering a peak power density of 728.9 mW cm−2 at 700 °C.
金属支撑固体氧化物燃料电池（MS-SOFCs）具有优异的机械强度和快速启动能力，但金属和阴极（氧电极）组件之间的不匹配为开发兼容的中低温高活性阴极（IL-T）带来了挑战。近年来，无钴正极材料引起了人们的极大关注，尤其是供体掺杂SrFeO3−δ。为了进一步提高它们在IL-T下的氧化还原性能，本研究采用密度泛函理论（DFT）计算设计了cu掺杂的SrFe0.9Nb0.1O3−δ阴极，揭示了cu掺杂与晶格畸变之间的关系。DFT结果表明，在B位适度掺杂cu促进了缺陷的形成，有效降低了母材SrFe0.9Nb0.1O3−δ的氧空位形成能，而过量掺杂cu则限制了氧空位的形成。在理论指导下，合成了SrFe0.9−xNb0.1CuxO3−δ （SFNCx, x = 0, 0.05, 0.10, 0.15和0.20）材料，实验结果进一步支持了DFT的结论。优化后的SFNC10在650℃时氧空位浓度最高，极化电阻为0.15 Ω cm2。此外，这项工作首次展示了SFNC10阴极在MS-SOFC中的应用，其结构为FeCr||NiO-GDC||CoGDC||SFNC10，在200 mA cm - 2下稳定工作超过60小时，在700°C下提供728.9 mW cm - 2的峰值功率密度。
{"title":"Distortions induced by Cu-doping enable accelerated oxygen reduction kinetics in Co-free SrFe0.9Nb0.1O3−δ for metal-supported SOFCs","authors":"Fei-Fei Lu , Ru-Yi Hou , Qi Ma , Jia-Hong Li , Chang-Jiu Li , Venkataraman Thangadurai , Cheng-Xin Li","doi":"10.1016/j.jechem.2026.01.013","DOIUrl":"10.1016/j.jechem.2026.01.013","url":null,"abstract":"<div><div>Metal-supported solid oxide fuel cells (MS-SOFCs) offer superior mechanical strength and fast start-up, but the mismatch between metal and cathode (oxygen electrode) components poses challenges for developing compatible, high-activity cathodes at intermediate-to-low temperatures (IL-T). Recently, cobalt-free cathode materials have attracted significant attention, especially donor-doped SrFeO<sub>3−</sub><em><sub>δ</sub></em>. To further improve their redox performance at IL-T, density functional theory (DFT) calculations were employed in this study to design Cu-doped SrFe<sub>0.9</sub>Nb<sub>0.1</sub>O<sub>3−</sub><em><sub>δ</sub></em> cathodes, revealing the correlation between Cu-doping and lattice distortion. DFT results indicate that moderate Cu-doping at the B site promotes defect formation and effectively reduces the oxygen vacancy formation energy of the parent SrFe<sub>0.9</sub>Nb<sub>0.1</sub>O<sub>3−</sub><em><sub>δ</sub></em>, while excessive Cu-doping limits the oxygen vacancy formation. Guided by theoretical insights, SrFe<sub>0.9−</sub><em><sub>x</sub></em>Nb<sub>0.1</sub>Cu<em><sub>x</sub></em>O<sub>3−</sub><em><sub>δ</sub></em> (SFNC<em>x</em>, <em>x</em> = 0, 0.05, 0.10, 0.15, and 0.20) materials were synthesized, and experimental results further support the DFT conclusions. The optimized SFNC10 composition exhibited the highest oxygen vacancy concentration and achieved a polarization resistance of 0.15 Ω cm<sup>2</sup> at 650 °C. Moreover, this work provides the first demonstration of the SFNC10 cathode applied in an MS-SOFC, with the configuration of FeCr||NiO-GDC||CoGDC||SFNC10, operating stably at 200 mA cm<sup>−2</sup> for over 60 h and delivering a peak power density of 728.9 mW cm<sup>−2</sup> at 700 °C.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 546-557"},"PeriodicalIF":14.9,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-19DOI: 10.1016/j.jechem.2026.01.012
Shang Wang , Meng Xie , Jiayue Wen , Xinxin Wang , Xinyang Ma , Geng Li , Qing Sun , Yanhong Tian
Aqueous Zn||MnO2 batteries have emerged as highly promising for flexible energy storage systems due to their intrinsic safety and environmental benignity. However, their application remains hindered by the limited density of electrochemically active sites, poor structural stability, and ambiguous charge-storage mechanisms of MnO2 cathodes. Herein, a CeO2 nanoparticle-modified layered δ-MnO2 microcrystalline cathode (CeO2@δ-MnO2) is rationally designed, and the underlying energy-storage mechanisms of the Zn||CeO2@δ-MnO2 battery are systematically investigated. The short-range ordered microcrystalline structure of δ-MnO2 effectively tailors the coordination environment of Mn centers, inducing abundant oxygen vacancies (Vo) that facilitate synergistic H+/Zn2+ co-insertion, thereby substantially enhancing charge-storage capability. Meanwhile, the incorporation of CeO2 nanoparticles not only reinforces the structural integrity of the layered δ-MnO2 framework but also triggers pronounced Jahn-Teller distortion, which further promotes Vo formation and accelerates electrochemical kinetics. Benefiting from these synergistic effects, the Zn||CeO2@δ-MnO2 battery delivers a high reversible capacity of 372.6 mA h g−1 at 0.5 A g−1 and retains 92.14% of its initial capacity after 2000 cycles, markedly outperforming pristine δ-MnO2. Furthermore, a flexible quasi-solid-state zinc-ion battery with a sandwich configuration exhibits excellent mechanical flexibility and safety, maintaining a high capacity of 240 mA h g−1 after 300 bending cycles. This work provides an effective defect- and distortion-engineering strategy for the rational design of high-performance flexible MnO2-based cathodes.
由于其固有的安全性和环境友好性，含水锌b| MnO2电池在柔性储能系统中具有很高的应用前景。然而，它们的应用仍然受到电化学活性位点密度有限、结构稳定性差和MnO2阴极电荷存储机制不明确的阻碍。本文合理设计了CeO2纳米粒子修饰层状δ-MnO2微晶阴极（CeO2@δ-MnO2），系统研究了Zn||CeO2@δ-MnO2电池的储能机理。δ-MnO2的短程有序微晶结构有效地调整了Mn中心的配位环境，诱导了丰富的氧空位（Vo），促进了H+/Zn2+的协同插入，从而大大提高了电荷存储能力。同时，CeO2纳米颗粒的掺入不仅增强了层状δ-MnO2框架的结构完整性，而且引发了明显的Jahn-Teller畸变，进一步促进了Vo的形成，加速了电化学动力学。得益于这些协同效应，Zn||CeO2@δ-MnO2电池在0.5 a g - 1下可提供372.6 mA h g - 1的高可逆容量，并且在2000次循环后仍保持其初始容量的92.14%，明显优于原始δ-MnO2电池。此外，具有三明治结构的柔性准固态锌离子电池具有优异的机械灵活性和安全性，在300次弯曲循环后保持240 mA h g−1的高容量。本研究为高性能柔性二氧化锰阴极的合理设计提供了一种有效的缺陷和畸变工程策略。
{"title":"CeO2 regulated vacancies and coordination environment of δ-MnO2 cathode for durable flexible zinc-ion batteries","authors":"Shang Wang , Meng Xie , Jiayue Wen , Xinxin Wang , Xinyang Ma , Geng Li , Qing Sun , Yanhong Tian","doi":"10.1016/j.jechem.2026.01.012","DOIUrl":"10.1016/j.jechem.2026.01.012","url":null,"abstract":"<div><div>Aqueous Zn||MnO<sub>2</sub> batteries have emerged as highly promising for flexible energy storage systems due to their intrinsic safety and environmental benignity. However, their application remains hindered by the limited density of electrochemically active sites, poor structural stability, and ambiguous charge-storage mechanisms of MnO<sub>2</sub> cathodes. Herein, a CeO<sub>2</sub> nanoparticle-modified layered δ-MnO<sub>2</sub> microcrystalline cathode (CeO<sub>2</sub>@δ-MnO<sub>2</sub>) is rationally designed, and the underlying energy-storage mechanisms of the Zn||CeO<sub>2</sub>@δ-MnO<sub>2</sub> battery are systematically investigated. The short-range ordered microcrystalline structure of δ-MnO<sub>2</sub> effectively tailors the coordination environment of Mn centers, inducing abundant oxygen vacancies (<em>V</em><sub>o</sub>) that facilitate synergistic H<sup>+</sup>/Zn<sup>2+</sup> co-insertion, thereby substantially enhancing charge-storage capability. Meanwhile, the incorporation of CeO<sub>2</sub> nanoparticles not only reinforces the structural integrity of the layered δ-MnO<sub>2</sub> framework but also triggers pronounced Jahn-Teller distortion, which further promotes <em>V</em><sub>o</sub> formation and accelerates electrochemical kinetics. Benefiting from these synergistic effects, the Zn||CeO<sub>2</sub>@δ-MnO<sub>2</sub> battery delivers a high reversible capacity of 372.6 mA h g<sup>−1</sup> at 0.5 A g<sup>−1</sup> and retains 92.14% of its initial capacity after 2000 cycles, markedly outperforming pristine δ-MnO<sub>2</sub>. Furthermore, a flexible quasi-solid-state zinc-ion battery with a sandwich configuration exhibits excellent mechanical flexibility and safety, maintaining a high capacity of 240 mA h g<sup>−1</sup> after 300 bending cycles. This work provides an effective defect- and distortion-engineering strategy for the rational design of high-performance flexible MnO<sub>2</sub>-based cathodes.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 482-493"},"PeriodicalIF":14.9,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-19DOI: 10.1016/j.jechem.2026.01.018
Zhengtian Tan , Zheng Zhou , Rui Chen , Wenguang Liu , Qisen Zhou , Jianan Wang , Huaiqing Luo , He Zhu , Tianyin Miao , Wenpei Li , Xiaoxuan Liu , Hasan Raza , Sanwan Liu , Zonghao Liu , Wei Chen
Perovskite solar cells (PSCs) have emerged as a promising candidate for next-generation photovoltaic technologies owing to their low fabrication costs and remarkable power conversion efficiencies (PCEs). Nevertheless, their commercialization is hindered by long-term stability issues, particularly the irreversible performance degradation caused by electrode corrosion and ion diffusion during prolonged operation. Here, we present a thermally evaporated non-noble metal electrode, a nickel (Ni) electrode, with exceptional intrinsic physicochemical stability as an alternative to conventional metal electrodes for highly stable perovskite devices. We demonstrate that the Ni electrode exhibits appropriate energy-level alignment and a higher charge migration barrier, endowing it with superior intrinsic stability compared to traditional copper (Cu) electrodes while effectively mitigating interfacial reactions between the perovskite layer and the metal electrode. Consequently, we achieve PCEs of 23.21% and 15.45% for small-area devices and perovskite solar modules (PSMs, aperture area: 113 cm2) based on Ni-electrode, respectively, representing the highest reported efficiencies for PSCs utilizing inert non-noble metal electrodes to date. More importantly, the encapsulated PSM retains 96.4% of its initial PCE after 1000 h of thermal aging at 65 °C in ambient air, underscoring the exceptional operational stability of the proposed Ni-based electrode system.
{"title":"Stable nickel electrode for durable perovskite solar modules","authors":"Zhengtian Tan , Zheng Zhou , Rui Chen , Wenguang Liu , Qisen Zhou , Jianan Wang , Huaiqing Luo , He Zhu , Tianyin Miao , Wenpei Li , Xiaoxuan Liu , Hasan Raza , Sanwan Liu , Zonghao Liu , Wei Chen","doi":"10.1016/j.jechem.2026.01.018","DOIUrl":"10.1016/j.jechem.2026.01.018","url":null,"abstract":"<div><div>Perovskite solar cells (PSCs) have emerged as a promising candidate for next-generation photovoltaic technologies owing to their low fabrication costs and remarkable power conversion efficiencies (PCEs). Nevertheless, their commercialization is hindered by long-term stability issues, particularly the irreversible performance degradation caused by electrode corrosion and ion diffusion during prolonged operation. Here, we present a thermally evaporated non-noble metal electrode, a nickel (Ni) electrode, with exceptional intrinsic physicochemical stability as an alternative to conventional metal electrodes for highly stable perovskite devices. We demonstrate that the Ni electrode exhibits appropriate energy-level alignment and a higher charge migration barrier, endowing it with superior intrinsic stability compared to traditional copper (Cu) electrodes while effectively mitigating interfacial reactions between the perovskite layer and the metal electrode. Consequently, we achieve PCEs of 23.21% and 15.45% for small-area devices and perovskite solar modules (PSMs, aperture area: 113 cm<sup>2</sup>) based on Ni-electrode, respectively, representing the highest reported efficiencies for PSCs utilizing inert non-noble metal electrodes to date. More importantly, the encapsulated PSM retains 96.4% of its initial PCE after 1000 h of thermal aging at 65 °C in ambient air, underscoring the exceptional operational stability of the proposed Ni-based electrode system.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 496-503"},"PeriodicalIF":14.9,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-18DOI: 10.1016/j.jechem.2026.01.011
Jun Cong , Shaohua Luo
This review summarizes the cutting-edge applications of artificial intelligence (AI) technology in the development and performance optimization of key materials for sodium-ion batteries (SIBs), with a primary focus on its breakthrough advancements in the innovation of cathode and anode materials. It highlights the pivotal role of AI in accelerating the discovery and optimization process of high-performance SIB materials. In the research and development of cathode materials, AI technology, through machine learning and deep learning algorithms, assists in the design of layered oxides and poly-anion compounds, optimizes the ratio of transition metals and crystal structure, and enhances the kinetics of Na+ intercalation/deintercalation and structural stability. In terms of anode materials, AI technology leverages data-driven high-throughput screening strategies and microstructural modulation models to drive breakthroughs in key performance metrics such as sodium storage capacity and rate capability for hard carbon, alloy-based, and conversion-type anode materials. AI technology successfully establishes a new development paradigm of “data-driven, mechanism-embedded”, achieving full-chain coverage from atomic-scale material design to system-level performance optimization, significantly reducing development cycle and costs. Based on a summary of the current application status of AI technology in the development of SIBs materials, this review further analyzes the challenges that this field is facing, and at the same time looks forward to the development opportunities of the in-depth integration of AI and experimental research and development, providing innovative methodological support and direction guidance for promoting the industrialization process of high-performance SIBs.
{"title":"Artificial intelligence empowering innovation in key materials for sodium-ion batteries: Machine learning driven design and optimization of cathode and anode materials","authors":"Jun Cong , Shaohua Luo","doi":"10.1016/j.jechem.2026.01.011","DOIUrl":"10.1016/j.jechem.2026.01.011","url":null,"abstract":"<div><div>This review summarizes the cutting-edge applications of artificial intelligence (AI) technology in the development and performance optimization of key materials for sodium-ion batteries (SIBs), with a primary focus on its breakthrough advancements in the innovation of cathode and anode materials. It highlights the pivotal role of AI in accelerating the discovery and optimization process of high-performance SIB materials. In the research and development of cathode materials, AI technology, through machine learning and deep learning algorithms, assists in the design of layered oxides and poly-anion compounds, optimizes the ratio of transition metals and crystal structure, and enhances the kinetics of Na<sup>+</sup> intercalation/deintercalation and structural stability. In terms of anode materials, AI technology leverages data-driven high-throughput screening strategies and microstructural modulation models to drive breakthroughs in key performance metrics such as sodium storage capacity and rate capability for hard carbon, alloy-based, and conversion-type anode materials. AI technology successfully establishes a new development paradigm of “data-driven, mechanism-embedded”, achieving full-chain coverage from atomic-scale material design to system-level performance optimization, significantly reducing development cycle and costs. Based on a summary of the current application status of AI technology in the development of SIBs materials, this review further analyzes the challenges that this field is facing, and at the same time looks forward to the development opportunities of the in-depth integration of AI and experimental research and development, providing innovative methodological support and direction guidance for promoting the industrialization process of high-performance SIBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 434-453"},"PeriodicalIF":14.9,"publicationDate":"2026-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-16DOI: 10.1016/j.jechem.2026.01.009
Qian Huo , Fu Li , Mengxin Duan , Mo Qiu , Qingxin Guan , Wei Li
Photothermal catalytic CO2 reduction to ethanol is a key pathway for carbon cycle utilization, but its development is limited by the bottlenecks of product selectivity regulation and low C–C coupling efficiency. In this study, a graphene oxide (rGO)-supported high-density Cu/Cu2O heterojunction catalyst was constructed via a “one-pot hydrothermal-high-temperature hydrogen calcination” strategy, leveraging the confinement and electronic modulation effects of “rGO fences” to achieve a significant leap in catalytic performance. Charge density difference and density of states (DOS) analyses reveal that a strong built-in electric field directed from Cu to Cu2O is formed at the heterojunction interface, which efficiently promotes the separation and transfer of charge carriers and optimizes the adsorption of intermediates by regulating the d-band center. Under light irradiation, the localized surface plasmon resonance (LSPR) effect of Cu synergizes with the built-in electric field to enhance the “hot electron” injection efficiency. In situ Fourier transform infrared spectroscopy (in situ FT-IR) and density functional theory (DFT) calculations confirm that the rate-determining step (RDS) energy barrier of the C–C asymmetric coupling pathway of *CO/*CHO at the interface is only 0.92 eV, which is significantly lower than that of side reaction pathways. Under optimal reaction conditions (160 °C, 2 MPa, CO2/H2 = 1:3), the catalyst achieves an ethanol yield of 3250 μmol g−1 h−1 and a liquid-phase selectivity of 93%, providing new insights for the design of efficient catalysts for CO2 conversion to C2+ products.
{"title":"Interfacial engineering of high-density Cu/Cu2O junctions for enhanced CO2-to-ethanol photothermal conversion","authors":"Qian Huo , Fu Li , Mengxin Duan , Mo Qiu , Qingxin Guan , Wei Li","doi":"10.1016/j.jechem.2026.01.009","DOIUrl":"10.1016/j.jechem.2026.01.009","url":null,"abstract":"<div><div>Photothermal catalytic CO<sub>2</sub> reduction to ethanol is a key pathway for carbon cycle utilization, but its development is limited by the bottlenecks of product selectivity regulation and low C–C coupling efficiency. In this study, a graphene oxide (rGO)-supported high-density Cu/Cu<sub>2</sub>O heterojunction catalyst was constructed via a “one-pot hydrothermal-high-temperature hydrogen calcination” strategy, leveraging the confinement and electronic modulation effects of “rGO fences” to achieve a significant leap in catalytic performance. Charge density difference and density of states (DOS) analyses reveal that a strong built-in electric field directed from Cu to Cu<sub>2</sub>O is formed at the heterojunction interface, which efficiently promotes the separation and transfer of charge carriers and optimizes the adsorption of intermediates by regulating the d-band center. Under light irradiation, the localized surface plasmon resonance (LSPR) effect of Cu synergizes with the built-in electric field to enhance the “hot electron” injection efficiency. In situ Fourier transform infrared spectroscopy (in situ FT-IR) and density functional theory (DFT) calculations confirm that the rate-determining step (RDS) energy barrier of the C–C asymmetric coupling pathway of *CO/*CHO at the interface is only 0.92 eV, which is significantly lower than that of side reaction pathways. Under optimal reaction conditions (160 °C, 2 MPa, CO<sub>2</sub>/H<sub>2</sub> = 1:3), the catalyst achieves an ethanol yield of 3250 μmol g<sup>−1</sup> h<sup>−1</sup> and a liquid-phase selectivity of 93%, providing new insights for the design of efficient catalysts for CO<sub>2</sub> conversion to C<sub>2+</sub> products.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 514-524"},"PeriodicalIF":14.9,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-14DOI: 10.1016/j.jechem.2026.01.010
Guangbo Liu , Zhihao Lou , Qinghao Quan , Yu Dai , Yuanshuo Ma , Pengfei Wu , Xuejing Cui , Xin Chen , Xin Zhou , Luhua Jiang
Hydrazine-assisted water electrolysis is a promising route for hydrogen production, and efficient bi-functional electrodes for the anodic hydrazine oxidation reaction (HzOR) and the cathodic hydrogen evolution reaction (HER) simplify the devices and enhance the technological advantage. However, suffering from the incompatible adsorption of different intermediates and the sluggish reaction kinetics, the design of effective and durable bi-functional electrodes still faces challenges. Herein, a Lewis acid (WOx) of powerful electron-accepting ability stabilized single-atom Ir catalyst (Ir-SA@WOx), intriguing strong metal-support interaction (SMSI), is demonstrated to efficiently activate H2O and N2H4 molecules. Ir-SA@WOx shows exceptional activity for both HER and HzOR (26.31 and 44.79 A mgIr−1 at −100 mV), surpassing commercial Pt/C and Ir/C by factors of 41.8 and 27.6, respectively. A hydrazine-assisted water electrolyzer fabricated with Ir-SA@WOx achieves a current density of 100 mA cm−2 at an ultra-low cell voltage of 0.313 V and electricity consumption of merely 0.75 kWh m−3 H2, significantly lower than conventional water electrolysis systems (1.852 V, 4.43 kWh m−3 H2). In situ infrared absorption spectroscopy and theoretical calculations elucidate that the SMSI in Ir-SA@WOx reconstructs the electronic structure to facilitate the activation of the rigid water at the catalyst/electrolyte interface into free species, also optimizes H* adsorption and accelerates dehydrogenation kinetics of the potential-determining step of N2H3*-to-N2H2* at Ir-sites, thereby realizing high activity for both HER and HzOR. This work illustrates the tailoring of electronic structures via the SMSI effect for catalytic-activity enhancement, guiding the design of advanced bi-functional catalysts for energy-efficient hydrogen production.
联氨辅助电解是一种很有前途的制氢途径，高效的双功能电极用于阳极联氨氧化反应（HzOR）和阴极析氢反应（HER），简化了装置，增强了技术优势。然而，由于不同中间体的不相容吸附和反应动力学缓慢，设计有效且耐用的双功能电极仍然面临挑战。本文中，路易斯酸（WOx）具有强大的电子接受能力，稳定了单原子Ir催化剂（Ir-SA@WOx），激发了强金属-载体相互作用（SMSI），有效地激活了H2O和N2H4分子。Ir-SA@WOx对HER和HzOR的活性（在- 100 mV下分别为26.31和44.79 A mgIr - 1），分别超过商业Pt/C和Ir/C的41.8和27.6倍。用Ir-SA@WOx制备的肼辅助水电解器在超低电池电压0.313 V下电流密度达到100 mA cm−2，耗电量仅为0.75 kWh m−3 H2，显著低于传统电解系统（1.852 V, 4.43 kWh m−3 H2）。原位红外吸收光谱和理论计算表明，Ir-SA@WOx中的SMSI重构了电子结构，促进了催化剂/电解质界面上刚性水活化为自由物质，优化了H*吸附，加速了ir位上N2H3*到n2h2 *的电位决定步骤的脱氢动力学，从而实现了HER和HzOR的高活性。这项工作说明了通过SMSI效应来调整电子结构以增强催化活性，指导了用于节能制氢的先进双功能催化剂的设计。
{"title":"Strong metal-support interaction in Lewis acid anchored iridium single-atoms boosts hydrazine oxidation-coupled hydrogen evolution","authors":"Guangbo Liu , Zhihao Lou , Qinghao Quan , Yu Dai , Yuanshuo Ma , Pengfei Wu , Xuejing Cui , Xin Chen , Xin Zhou , Luhua Jiang","doi":"10.1016/j.jechem.2026.01.010","DOIUrl":"10.1016/j.jechem.2026.01.010","url":null,"abstract":"<div><div>Hydrazine-assisted water electrolysis is a promising route for hydrogen production, and efficient bi-functional electrodes for the anodic hydrazine oxidation reaction (HzOR) and the cathodic hydrogen evolution reaction (HER) simplify the devices and enhance the technological advantage. However, suffering from the incompatible adsorption of different intermediates and the sluggish reaction kinetics, the design of effective and durable bi-functional electrodes still faces challenges. Herein, a Lewis acid (WO<em><sub>x</sub></em>) of powerful electron-accepting ability stabilized single-atom Ir catalyst (Ir-SA@WO<em><sub>x</sub></em>), intriguing strong metal-support interaction (SMSI), is demonstrated to efficiently activate H<sub>2</sub>O and N<sub>2</sub>H<sub>4</sub> molecules. Ir-SA@WO<em><sub>x</sub></em> shows exceptional activity for both HER and HzOR (26.31 and 44.79 A mg<sub>Ir</sub><sup>−1</sup> at −100 mV), surpassing commercial Pt/C and Ir/C by factors of 41.8 and 27.6, respectively. A hydrazine-assisted water electrolyzer fabricated with Ir-SA@WO<em><sub>x</sub></em> achieves a current density of 100 mA cm<sup>−2</sup> at an ultra-low cell voltage of 0.313 V and electricity consumption of merely 0.75 kWh m<sup>−3</sup> H<sub>2</sub>, significantly lower than conventional water electrolysis systems (1.852 V, 4.43 kWh m<sup>−3</sup> H<sub>2</sub>). In situ infrared absorption spectroscopy and theoretical calculations elucidate that the SMSI in Ir-SA@WO<em><sub>x</sub></em> reconstructs the electronic structure to facilitate the activation of the rigid water at the catalyst/electrolyte interface into free species, also optimizes H* adsorption and accelerates dehydrogenation kinetics of the potential-determining step of N<sub>2</sub>H<sub>3</sub>*-to-N<sub>2</sub>H<sub>2</sub>* at Ir-sites, thereby realizing high activity for both HER and HzOR. This work illustrates the tailoring of electronic structures via the SMSI effect for catalytic-activity enhancement, guiding the design of advanced bi-functional catalysts for energy-efficient hydrogen production.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 359-370"},"PeriodicalIF":14.9,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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