Pub Date : 2026-05-01Epub Date: 2026-01-04DOI: 10.1016/j.jechem.2025.12.047
Lanlan Xu , Xiao Liu , Zhike Si , Haixia Liao , Daguang Li , Guanghui Zhan , Gengping Wan , Lihong Wu , Guizhen Wang
Heterostructured materials, featuring multilevel dielectric polarization and synergistic magnetic-dielectric effects, offer a promising strategy for improving electromagnetic wave (EMW) absorption performance. Nevertheless, fully exploiting these functionalities requires precise nanoscale control over interfacial architecture, which remains a significant challenge in material design. Herein, we report the simultaneous growth of uniformly distributed Ni-decorated bamboo-like carbon nanotubes (CNTs) on both the inner and outer surfaces of carbon foam (CF) via heterogeneous nucleation. By precisely controlling the Ni/CNTs coverage on both surfaces, the relative contributions of interfacial polarization and conduction loss are effectively balanced. Space-charge regions formed at the Ni-CNTs and CNTs-CF heterointerfaces facilitate substantial charge transfer and asymmetric charge redistribution, thereby endowing the hierarchical foam with outstanding EMW absorption capacity. The resulting Ni/CNTs/CF composite achieves a minimum reflection loss of −61.73 dB and an effective absorption bandwidth of 5.52 GHz at an ultrathin thickness of 1.89 mm. This study provides a promising strategy for designing lightweight, broadband, and high-efficiency heterogeneous EMW absorbers.
{"title":"Dual-interface charge migration polarization boosting broadband electromagnetic wave absorption","authors":"Lanlan Xu , Xiao Liu , Zhike Si , Haixia Liao , Daguang Li , Guanghui Zhan , Gengping Wan , Lihong Wu , Guizhen Wang","doi":"10.1016/j.jechem.2025.12.047","DOIUrl":"10.1016/j.jechem.2025.12.047","url":null,"abstract":"<div><div>Heterostructured materials, featuring multilevel dielectric polarization and synergistic magnetic-dielectric effects, offer a promising strategy for improving electromagnetic wave (EMW) absorption performance. Nevertheless, fully exploiting these functionalities requires precise nanoscale control over interfacial architecture, which remains a significant challenge in material design. Herein, we report the simultaneous growth of uniformly distributed Ni-decorated bamboo-like carbon nanotubes (CNTs) on both the inner and outer surfaces of carbon foam (CF) via heterogeneous nucleation. By precisely controlling the Ni/CNTs coverage on both surfaces, the relative contributions of interfacial polarization and conduction loss are effectively balanced. Space-charge regions formed at the Ni-CNTs and CNTs-CF heterointerfaces facilitate substantial charge transfer and asymmetric charge redistribution, thereby endowing the hierarchical foam with outstanding EMW absorption capacity. The resulting Ni/CNTs/CF composite achieves a minimum reflection loss of −61.73 dB and an effective absorption bandwidth of 5.52 GHz at an ultrathin thickness of 1.89 mm. This study provides a promising strategy for designing lightweight, broadband, and high-efficiency heterogeneous EMW absorbers.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 144-154"},"PeriodicalIF":14.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025030","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 : 2026-05-01Epub Date: 2026-01-04DOI: 10.1016/j.jechem.2025.12.046
Ruijie Mao , Jintao Liu , Tanghao Wang , Peng Dong , Weiyang Li , Yibing Qu , Jianxing Wang , Biao Zhang , Zengsheng Ma
Constructing rich multi-component solid electrolyte interphases (SEI) with beneficial inorganic compounds has become an increasingly attractive strategy for the long-term performance and safety of all-solid-state lithium metal batteries (ASSLMBs). However, most existing strategies are restricted and typically depend on multiple complex bond-breaking mechanisms to incorporate these essential components. Here, we introduce a synergistic approach that uses a simply designed ion-loaded porous organic polymer (PIBZ-Br) as an electrolyte additive to in situ fabricate a LiF-LiBr-rich SEI, thereby avoiding multiple complex bond-breaking mechanisms. Specifically, imidazolium groups grafted onto the porous polymer framework electrostatically anchor bis(trifluoromethanesulfonyl)imide (TFSI−) anions, while releasing Br−. The released Br− then reacts with Li+ to form LiBr in situ on the lithium anode surface. Meanwhile, the TFSI−-anchored porous polymer framework facilitates C–F bond break in TFSI−, significantly accelerating LiF formation. The LiF-LiBr-rich SEI has been successfully formed. The experimental results demonstrate that the assembled Li/PEO-PIBZ-Br/Li battery achieved over 4000 h of stable cycling at a current density of 0.1 mA cm−2. The assembled Li/PEO-PIBZ-Br/LiFePO4 battery maintains capacity retention of 80.6% after 1200 cycles at 1 C and 850 cycles at 2 C with a capacity retention of 79.2%. Additionally, it still demonstrates excellent cycling performance when matched with high-load and high-voltage cathodes. This work provides a new perspective for the in situ construction of multi-component SEI.
利用有益的无机化合物构建丰富的多组分固体电解质界面（SEI）已成为提高全固态锂金属电池（asslmb）长期性能和安全性的一种越来越有吸引力的策略。然而，大多数现有的策略都是有限的，并且通常依赖于多个复杂的断键机制来结合这些基本成分。在这里，我们介绍了一种协同方法，使用一种简单设计的离子负载多孔有机聚合物（PIBZ-Br）作为电解质添加剂，原位制备富含锂离子锂离子的SEI，从而避免了多种复杂的断键机制。具体来说，接枝到多孔聚合物框架上的咪唑基团静电锚定了双（三氟甲烷磺酰）亚胺（TFSI -）阴离子，同时释放了Br -。然后释放的Br−与Li+在锂阳极表面原位反应生成LiBr。同时，TFSI -锚定的多孔聚合物框架促进了TFSI -中C-F键的断裂，显著加速了liff的形成。成功形成了富lif - lib的SEI。实验结果表明，组装的锂/PEO-PIBZ-Br/Li电池在0.1 mA cm−2的电流密度下可实现4000 h以上的稳定循环。组装的锂/PEO-PIBZ-Br/LiFePO4电池在1℃下循环1200次，在2℃下循环850次，容量保持率为80.6%，容量保持率为79.2%。此外，当与高负载和高压阴极匹配时，它仍然表现出优异的循环性能。本工作为多组分SEI的原位构建提供了新的思路。
{"title":"Porous polymer-based ionic synergy for in situ construction of multi-component SEI in solid lithium metal batteries","authors":"Ruijie Mao , Jintao Liu , Tanghao Wang , Peng Dong , Weiyang Li , Yibing Qu , Jianxing Wang , Biao Zhang , Zengsheng Ma","doi":"10.1016/j.jechem.2025.12.046","DOIUrl":"10.1016/j.jechem.2025.12.046","url":null,"abstract":"<div><div>Constructing rich multi-component solid electrolyte interphases (SEI) with beneficial inorganic compounds has become an increasingly attractive strategy for the long-term performance and safety of all-solid-state lithium metal batteries (ASSLMBs). However, most existing strategies are restricted and typically depend on multiple complex bond-breaking mechanisms to incorporate these essential components. Here, we introduce a synergistic approach that uses a simply designed ion-loaded porous organic polymer (PIBZ-Br) as an electrolyte additive to in situ fabricate a LiF-LiBr-rich SEI, thereby avoiding multiple complex bond-breaking mechanisms. Specifically, imidazolium groups grafted onto the porous polymer framework electrostatically anchor bis(trifluoromethanesulfonyl)imide (TFSI<sup>−</sup>) anions, while releasing Br<sup>−</sup>. The released Br<sup>−</sup> then reacts with Li<sup>+</sup> to form LiBr in situ on the lithium anode surface. Meanwhile, the TFSI<sup>−</sup>-anchored porous polymer framework facilitates C–F bond break in TFSI<sup>−</sup>, significantly accelerating LiF formation. The LiF-LiBr-rich SEI has been successfully formed. The experimental results demonstrate that the assembled Li/PEO-PIBZ-Br/Li battery achieved over 4000 h of stable cycling at a current density of 0.1 mA cm<sup>−2</sup>. The assembled Li/PEO-PIBZ-Br/LiFePO<sub>4</sub> battery maintains capacity retention of 80.6% after 1200 cycles at 1 C and 850 cycles at 2 C with a capacity retention of 79.2%. Additionally, it still demonstrates excellent cycling performance when matched with high-load and high-voltage cathodes. This work provides a new perspective for the in situ construction of multi-component SEI.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 155-163"},"PeriodicalIF":14.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025031","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 : 2026-05-01Epub Date: 2026-01-14DOI: 10.1016/j.jechem.2026.01.008
Qiqiang Zhu , Yeyang Lin , Mingen Zheng , Weihuang Wang , Lingfeng Zheng , Hongkai Zhu , Yixin Lin , Huiting Du , Qiao Zheng , Hui Deng , Jionghua Wu , Qing Gao , Jianhui Chen , Shuying Cheng
Sb2(S,Se)3 solar cells have received extensive attention and development in recent years. However, its performance has been significantly hindered by the unideal quality of Sb2(S,Se)3 film restricted by the annealing process. Herein, a low-cost and efficient unidirectional rapid thermal processing (URTP) strategy was first proposed to enhance the quality of Sb2(S,Se)3 film. The comprehensive comparative results demonstrated that the URTP strategy could multi-dimensionally optimize the performance of Sb2(S,Se)3 films, including the compactness, crystallinity, [hk1] orientation, film conductivity, and density of S vacancy (VS) defects, by optimizing the film growth mechanism. Consequently, a prominent spike-like conduction band offset (0.36 eV) emerges, accompanied by a widened depletion region and markedly reduced interface carrier recombination in Sb2(S,Se)3 solar cells. Interestingly, the URTP strategy inhibited the formation of poorly crystallized clusters at the back interface of Sb2(S,Se)3 film, alleviating the localized bandgap mismatch in Sb2(S,Se)3 solar cells. Finally, those combined improvements lead to a significant boost in carrier transport, achieving a remarkable efficiency of 10.16% alongside a fill factor (FF) of 68.75%, the best performance during the unconventional annealing strategies. This work not only proposed a novel efficient annealing approach for fabricating high-quality Sb2(S,Se)3 film but also brought new insights into the annealing growth mechanism of Sb2(S,Se)3 film, thereby boosting the development of Sb2(S,Se)3 solar cells.
{"title":"Novel annealing strategy for multi-dimensional optimization in efficient Sb2(S,Se)3 solar cells","authors":"Qiqiang Zhu , Yeyang Lin , Mingen Zheng , Weihuang Wang , Lingfeng Zheng , Hongkai Zhu , Yixin Lin , Huiting Du , Qiao Zheng , Hui Deng , Jionghua Wu , Qing Gao , Jianhui Chen , Shuying Cheng","doi":"10.1016/j.jechem.2026.01.008","DOIUrl":"10.1016/j.jechem.2026.01.008","url":null,"abstract":"<div><div>Sb<sub>2</sub>(S,Se)<sub>3</sub> solar cells have received extensive attention and development in recent years. However, its performance has been significantly hindered by the unideal quality of Sb<sub>2</sub>(S,Se)<sub>3</sub> film restricted by the annealing process. Herein, a low-cost and efficient unidirectional rapid thermal processing (URTP) strategy was first proposed to enhance the quality of Sb<sub>2</sub>(S,Se)<sub>3</sub> film. The comprehensive comparative results demonstrated that the URTP strategy could multi-dimensionally optimize the performance of Sb<sub>2</sub>(S,Se)<sub>3</sub> films, including the compactness, crystallinity, [<em>hk</em>1] orientation, film conductivity, and density of S vacancy (<em>V</em><sub>S</sub>) defects, by optimizing the film growth mechanism. Consequently, a prominent spike-like conduction band offset (0.36 eV) emerges, accompanied by a widened depletion region and markedly reduced interface carrier recombination in Sb<sub>2</sub>(S,Se)<sub>3</sub> solar cells. Interestingly, the URTP strategy inhibited the formation of poorly crystallized clusters at the back interface of Sb<sub>2</sub>(S,Se)<sub>3</sub> film, alleviating the localized bandgap mismatch in Sb<sub>2</sub>(S,Se)<sub>3</sub> solar cells. Finally, those combined improvements lead to a significant boost in carrier transport, achieving a remarkable efficiency of 10.16% alongside a fill factor (FF) of 68.75%, the best performance during the unconventional annealing strategies. This work not only proposed a novel efficient annealing approach for fabricating high-quality Sb<sub>2</sub>(S,Se)<sub>3</sub> film but also brought new insights into the annealing growth mechanism of Sb<sub>2</sub>(S,Se)<sub>3</sub> film, thereby boosting the development of Sb<sub>2</sub>(S,Se)<sub>3</sub> solar cells.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 535-545"},"PeriodicalIF":14.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170663","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 : 2026-05-01Epub Date: 2026-01-08DOI: 10.1016/j.jechem.2025.12.056
Liangliang Feng , Jingyi Chen , Qianqian Liu , Yijun Liu , Mengfei Zhou , Xi Hu , Liyun Cao , Guodong Li , Yong Zhao , Jianfeng Huang
The chemical bonds at heterogeneous interfaces can optimize the hydrogen adsorption free energy (ΔGH*) by reconfiguring the electronic structure, while an in-depth understanding of the hydrogen adsorption configuration is key to identifying the optimal active sites for enhancing hydrogen evolution performance. Here, we synthesize a wide-pH hydrogen evolution reaction (HER)-active Ni3ZnC0.7/WC heterostructure electrocatalyst uniformly anchored on a carbon framework through a one-step calcination method. Experimental and theoretical results demonstrate that Ni–W bridge bonds within the Ni3ZnC0.7/WC heterointerfaces can induce strong electronic interactions, which help to facilitate electron transfer and optimize the ΔGH*, thereby enabling extremely excellent catalytic activity. Consequently, owing to its enhanced inherent activity and favorable electrical conductivity, Ni3ZnC0.7/WC exhibits exceptional catalytic performance for HER (94 and 173 mV at 10 mA/cm2) in alkaline and acidic conditions. Additionally, it can maintain durability for at least 565 h under acidic conditions and 582 h under alkaline conditions, respectively, validating its excellent catalytic stability across a broad pH range. This research provides a new perspective and theoretical basis for designing efficient and stable HER electrocatalysts through interface chemical bond engineering.
{"title":"Interfacial Ni–W bridge bond enabling Ni3ZnC0.7/WC heterostructure with enhanced hydrogen evolution activity and stability","authors":"Liangliang Feng , Jingyi Chen , Qianqian Liu , Yijun Liu , Mengfei Zhou , Xi Hu , Liyun Cao , Guodong Li , Yong Zhao , Jianfeng Huang","doi":"10.1016/j.jechem.2025.12.056","DOIUrl":"10.1016/j.jechem.2025.12.056","url":null,"abstract":"<div><div>The chemical bonds at heterogeneous interfaces can optimize the hydrogen adsorption free energy (Δ<em>G</em><sub>H*</sub>) by reconfiguring the electronic structure, while an in-depth understanding of the hydrogen adsorption configuration is key to identifying the optimal active sites for enhancing hydrogen evolution performance. Here, we synthesize a wide-pH hydrogen evolution reaction (HER)-active Ni<sub>3</sub>ZnC<sub>0.7</sub>/WC heterostructure electrocatalyst uniformly anchored on a carbon framework through a one-step calcination method. Experimental and theoretical results demonstrate that Ni–W bridge bonds within the Ni<sub>3</sub>ZnC<sub>0.7</sub>/WC heterointerfaces can induce strong electronic interactions, which help to facilitate electron transfer and optimize the Δ<em>G</em><sub>H*</sub>, thereby enabling extremely excellent catalytic activity. Consequently, owing to its enhanced inherent activity and favorable electrical conductivity, Ni<sub>3</sub>ZnC<sub>0.7</sub>/WC exhibits exceptional catalytic performance for HER (94 and 173 mV at 10 mA/cm<sup>2</sup>) in alkaline and acidic conditions. Additionally, it can maintain durability for at least 565 h under acidic conditions and 582 h under alkaline conditions, respectively, validating its excellent catalytic stability across a broad pH range. This research provides a new perspective and theoretical basis for designing efficient and stable HER electrocatalysts through interface chemical bond engineering.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 390-398"},"PeriodicalIF":14.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170721","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 : 2026-05-01Epub Date: 2026-01-08DOI: 10.1016/j.jechem.2025.12.057
Teng Zong , Xing Zhu , Ming Tian , Chaojie Wang , Nanxin Wang , Jiachen Yang , Shu Liu , Xiaodong Wang
It remains a grand challenge to inhibit coke formation for Fe-based oxygen carriers with extensive reduction due to the mismatch between the CH4 decomposition rate on metallic Fe (Fe0) and the rate of the lattice oxygen migration to the surface for carbon oxidation, which led to unsatisfactory syngas selectivity and productivity for chemical looping partial oxidation of methane (CLPOM). Herein, Cu-modified Fe-based garnets (Y3Fe3CuxAl2−xO12 abbreviated as Fe3CuxAl2−x, x equals 0, 0.01, and 0.05) were designed, which exhibited boosted carbon-resistance with both CH4 conversion and CO selectivity of 94% and extraordinary syngas productivity of almost 8 mmol g−1 for Fe3Cu0.05Al1.95, surpassing most of the state-of-the-art Fe-based oxygen carriers in CLPOM. This could be attributed to the in-situ formation of a CuFe alloy under reaction conditions, which remarkably decreased the activity of CH4 decomposition over Fe0 sites to generate carbon and thus allowed lattice oxygen migration to the surface timely for the oxidation of coke formed.
{"title":"Enhanced coke resistance of Fe-based garnets by in-situ formed CuFe alloy for chemical looping partial oxidation of methane","authors":"Teng Zong , Xing Zhu , Ming Tian , Chaojie Wang , Nanxin Wang , Jiachen Yang , Shu Liu , Xiaodong Wang","doi":"10.1016/j.jechem.2025.12.057","DOIUrl":"10.1016/j.jechem.2025.12.057","url":null,"abstract":"<div><div>It remains a grand challenge to inhibit coke formation for Fe-based oxygen carriers with extensive reduction due to the mismatch between the CH<sub>4</sub> decomposition rate on metallic Fe (Fe<sup>0</sup>) and the rate of the lattice oxygen migration to the surface for carbon oxidation, which led to unsatisfactory syngas selectivity and productivity for chemical looping partial oxidation of methane (CLPOM). Herein, Cu-modified Fe-based garnets (Y<sub>3</sub>Fe<sub>3</sub>Cu<em><sub>x</sub></em>Al<sub>2−</sub><em><sub>x</sub></em>O<sub>12</sub> abbreviated as Fe<sub>3</sub>Cu<em><sub>x</sub></em>Al<sub>2−</sub><em><sub>x</sub></em>, <em>x</em> equals 0, 0.01, and 0.05) were designed, which exhibited boosted carbon-resistance with both CH<sub>4</sub> conversion and CO selectivity of 94% and extraordinary syngas productivity of almost 8 mmol g<sup>−1</sup> for Fe<sub>3</sub>Cu<sub>0.05</sub>Al<sub>1.95</sub>, surpassing most of the state-of-the-art Fe-based oxygen carriers in CLPOM. This could be attributed to the in-situ formation of a CuFe alloy under reaction conditions, which remarkably decreased the activity of CH<sub>4</sub> decomposition over Fe<sup>0</sup> sites to generate carbon and thus allowed lattice oxygen migration to the surface timely for the oxidation of coke formed.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 399-408"},"PeriodicalIF":14.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170722","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 : 2026-05-01Epub Date: 2025-12-29DOI: 10.1016/j.jechem.2025.12.040
Chenguang You , Chenzhuang Dong , Jiachen Lu , Siyuan Xie , Yijie Duan , Lili Duan , Hao Yan , Wei Luo , Shuangqiang Chen
Accurate prediction of the remaining useful life (RUL) of lithium-ion batteries requires the concurrent satisfaction of three technical demands: efficient modeling of long sequences, fusion of multi-scale features, and reliable quantification of prediction uncertainty. This study proposes MSTFNet, a multi-scale temporal fusion network that integrates a spatial convolutional neural network (SCNN) for local patterns, a Mamba state-space module for linear-time modeling of global dependencies, and an Informer module for sparse temporal focusing, all under a Bayesian inference head optimized via a combined negative log-likelihood and mean-squared-error objective. The Bayesian head not only calibrates uncertainty but also regulates multi-module feature fusion, achieving a cooperative synergy unavailable to single modules alone. Across three benchmark datasets (NASA, CALCE, and HUST), MSTFNet attains a superior balance between prediction accuracy and model efficiency, achieving up to 29.4 % lower RMSE than state-of-the-art baselines. Further analyses confirm well-calibrated predictive intervals, robust cross-dataset generalization under train-on-A/test-on-B and few-shot settings, and deployment feasibility in terms of latency, memory, and INT8/pruning performance. Ablation results substantiate that BNN-regulated joint optimization effectively enhances Informer collaboration, validating the proposed regulatory mechanism.
锂离子电池剩余使用寿命（RUL）的准确预测需要同时满足长序列的高效建模、多尺度特征的融合和预测不确定性的可靠量化三个技术要求。本研究提出了MSTFNet，这是一个多尺度时间融合网络，集成了用于局部模式的空间卷积神经网络（SCNN）、用于全局依赖关系线性时间建模的曼巴状态空间模块和用于稀疏时间聚焦的Informer模块，所有这些都在贝叶斯推理头下，通过负对数似然和均方误差目标组合优化。贝叶斯头部不仅可以校准不确定性，还可以调节多模块特征融合，实现单个模块无法实现的协同协同。在三个基准数据集（NASA、CALCE和HUST）中，MSTFNet在预测精度和模型效率之间取得了卓越的平衡，与最先进的基线相比，RMSE降低了29.4%。进一步的分析证实了校准良好的预测间隔，在训练-on- a /测试-on- b和少量射击设置下的稳健的跨数据集泛化，以及在延迟、内存和INT8/修剪性能方面的部署可行性。消融结果证实，bnn调控的联合优化有效地增强了Informer协同，验证了所提出的调控机制。
{"title":"A multi-scale temporal fusion network for accurate and uncertainty-aware battery remaining useful life prediction","authors":"Chenguang You , Chenzhuang Dong , Jiachen Lu , Siyuan Xie , Yijie Duan , Lili Duan , Hao Yan , Wei Luo , Shuangqiang Chen","doi":"10.1016/j.jechem.2025.12.040","DOIUrl":"10.1016/j.jechem.2025.12.040","url":null,"abstract":"<div><div>Accurate prediction of the remaining useful life (RUL) of lithium-ion batteries requires the concurrent satisfaction of three technical demands: efficient modeling of long sequences, fusion of multi-scale features, and reliable quantification of prediction uncertainty. This study proposes MSTFNet, a multi-scale temporal fusion network that integrates a spatial convolutional neural network (SCNN) for local patterns, a Mamba state-space module for linear-time modeling of global dependencies, and an Informer module for sparse temporal focusing, all under a Bayesian inference head optimized via a combined negative log-likelihood and mean-squared-error objective. The Bayesian head not only calibrates uncertainty but also regulates multi-module feature fusion, achieving a cooperative synergy unavailable to single modules alone. Across three benchmark datasets (NASA, CALCE, and HUST), MSTFNet attains a superior balance between prediction accuracy and model efficiency, achieving up to 29.4 % lower RMSE than state-of-the-art baselines. Further analyses confirm well-calibrated predictive intervals, robust cross-dataset generalization under train-on-A/test-on-B and few-shot settings, and deployment feasibility in terms of latency, memory, and INT8/pruning performance. Ablation results substantiate that BNN-regulated joint optimization effectively enhances Informer collaboration, validating the proposed regulatory mechanism.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"116 ","pages":"Pages 454-469"},"PeriodicalIF":14.9,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170725","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 : 2026-05-01Epub 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":"2026-05-01","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 : 2026-05-01Epub 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":"2026-05-01","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 : 2026-04-01Epub Date: 2025-11-29DOI: 10.1016/j.jechem.2025.11.038
Youwei Wang , Zhen Wang , Jingze Chen , Yupeng Feng , Xin Zhang , Yifan Deng , Xiangsong Jiang , Pan Zeng , Wei Yang , Liu Yang , Jianping Long , Anjun Hu
Lithium metal batteries (LMBs) are widely recognized as one of the most promising candidates for next-generation energy storage systems. However, their practical deployment is severely constrained by critical challenges such as lithium dendrite formation and interfacial instability. Herein, we propose a lithiophobic dilution-induced solvation reconstruction (LDSR) strategy to address these issues. By incorporating a weakly coordinating and electrochemically stable diluent, pentafluorobenzyl ether (FBEN), into a conventional carbonate-based electrolyte, the interaction between lithium ions and solvent molecules is significantly weakened. This facilitates the incorporation of hexafluorophosphate anions into the primary solvation shell of Li+, resulting in the formation of an anion-dominated solvation structure consisting of contact ion pairs and ionic aggregates. Such a solvation environment promotes the in situ formation of a LiF-rich inorganic solid electrolyte interphase layer, thereby improving interfacial stability and enhancing ionic transport kinetics. Li||Li symmetric cells demonstrate over 650 h of stable cycling at 1 mA cm−2 with low overpotential. Furthermore, Li||NCM811 full cells retain 80 % of their capacity after 400 cycles at 1C, and maintain 67 % of their initial capacity after 300 cycles at 5C. The LDSR strategy offers a viable pathway toward stable Li metal anodes, advancing the development of next-generation LMBs.
{"title":"Constructing LiF-rich interfaces via lithiophobic dilution-induced solvation reconstruction for stable lithium metal batteries","authors":"Youwei Wang , Zhen Wang , Jingze Chen , Yupeng Feng , Xin Zhang , Yifan Deng , Xiangsong Jiang , Pan Zeng , Wei Yang , Liu Yang , Jianping Long , Anjun Hu","doi":"10.1016/j.jechem.2025.11.038","DOIUrl":"10.1016/j.jechem.2025.11.038","url":null,"abstract":"<div><div>Lithium metal batteries (LMBs) are widely recognized as one of the most promising candidates for next-generation energy storage systems. However, their practical deployment is severely constrained by critical challenges such as lithium dendrite formation and interfacial instability. Herein, we propose a lithiophobic dilution-induced solvation reconstruction (LDSR) strategy to address these issues. By incorporating a weakly coordinating and electrochemically stable diluent, pentafluorobenzyl ether (FBEN), into a conventional carbonate-based electrolyte, the interaction between lithium ions and solvent molecules is significantly weakened. This facilitates the incorporation of hexafluorophosphate anions into the primary solvation shell of Li<sup>+</sup>, resulting in the formation of an anion-dominated solvation structure consisting of contact ion pairs and ionic aggregates. Such a solvation environment promotes the in situ formation of a LiF-rich inorganic solid electrolyte interphase layer, thereby improving interfacial stability and enhancing ionic transport kinetics. Li||Li symmetric cells demonstrate over 650 h of stable cycling at 1 mA cm<sup>−2</sup> with low overpotential. Furthermore, Li||NCM811 full cells retain 80 % of their capacity after 400 cycles at 1C, and maintain 67 % of their initial capacity after 300 cycles at 5C. The LDSR strategy offers a viable pathway toward stable Li metal anodes, advancing the development of next-generation LMBs.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"115 ","pages":"Pages 505-512"},"PeriodicalIF":14.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145837551","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 : 2026-04-01Epub Date: 2025-12-01DOI: 10.1016/j.jechem.2025.11.045
Weihao Xia , Haonan Wang , Fengjun Ji , Tiansheng Bai , Xuan Zhou , Jinru Huang , Jingyu Lu , Yuhan Wu , Deping Li , Lijie Ci
Antimony (Sb)-based anode materials suffer from poor cycling stability in potassium-ion batteries (PIBs) due to severe volume changes during charge/discharge processes, which limit their practical application. To address this challenge, a dual strategy of alloying and carbon coating was employed, resulting in the successful synthesis of composite anodes comprising porous carbon-coated SbBi nanoalloys with tunable Sb/Bi atomic ratios. This approach significantly enhances the structural stability and electrochemical performance of Sb-based anodes. The optimized Sb0.5Bi0.5@C anode exhibits exceptional cycling stability, delivering a high reversible capacity of 316.0 mAh g−1 after 600 cycles at 0.2 C, and remarkable rate capability (230.0 mAh g−1 at 5.0 C). Moreover, it demonstrates improved thermal stability at 45 °C, retaining a capacity of 328.6 mAh g−1 after 1000 cycles at 2.0 C. The potassium storage mechanism is elucidated through kinetic analysis and theoretical calculations. Furthermore, full-cell configurations were assembled and evaluated, demonstrating promising practical application potential with similarly outstanding electrochemical performance.
在钾离子电池（PIBs）中，锑基负极材料由于在充放电过程中体积变化较大，其循环稳定性较差，限制了其实际应用。为了解决这一挑战，采用了合金化和碳涂层的双重策略，成功地合成了由多孔碳涂层SbBi纳米合金组成的复合阳极，其Sb/Bi原子比可调。该方法显著提高了锑基阳极的结构稳定性和电化学性能。优化后的Sb0.5Bi0.5@C阳极表现出优异的循环稳定性，在0.2 C下循环600次后提供316.0 mAh g - 1的高可逆容量，以及卓越的倍率能力（在5.0 C下230.0 mAh g - 1）。此外，它在45°C时表现出更好的热稳定性，在2.0 C下循环1000次后仍保持328.6 mAh g−1的容量。此外，还组装并评估了完整的电池配置，展示了具有同样出色电化学性能的有希望的实际应用潜力。
{"title":"Nano-dispersed Sb-Bi alloys with tunable microstructures for long-cycle and high-rate potassium-ion storage","authors":"Weihao Xia , Haonan Wang , Fengjun Ji , Tiansheng Bai , Xuan Zhou , Jinru Huang , Jingyu Lu , Yuhan Wu , Deping Li , Lijie Ci","doi":"10.1016/j.jechem.2025.11.045","DOIUrl":"10.1016/j.jechem.2025.11.045","url":null,"abstract":"<div><div>Antimony (Sb)-based anode materials suffer from poor cycling stability in potassium-ion batteries (PIBs) due to severe volume changes during charge/discharge processes, which limit their practical application. To address this challenge, a dual strategy of alloying and carbon coating was employed, resulting in the successful synthesis of composite anodes comprising porous carbon-coated SbBi nanoalloys with tunable Sb/Bi atomic ratios. This approach significantly enhances the structural stability and electrochemical performance of Sb-based anodes. The optimized Sb<sub>0.5</sub>Bi<sub>0.5</sub>@C anode exhibits exceptional cycling stability, delivering a high reversible capacity of 316.0 mAh g<sup>−1</sup> after 600 cycles at 0.2 C, and remarkable rate capability (230.0 mAh g<sup>−1</sup> at 5.0 C). Moreover, it demonstrates improved thermal stability at 45 °C, retaining a capacity of 328.6 mAh g<sup>−1</sup> after 1000 cycles at 2.0 C. The potassium storage mechanism is elucidated through kinetic analysis and theoretical calculations. Furthermore, full-cell configurations were assembled and evaluated, demonstrating promising practical application potential with similarly outstanding electrochemical performance.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"115 ","pages":"Pages 465-475"},"PeriodicalIF":14.9,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145837634","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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