Nano Energy最新文献_第10页

Polymer backbone-enabled solvation regulation of high-concentration ether electrolytes for high-voltage quasi-solid-state lithium metal batteries 高压准固态锂金属电池用高浓度醚电解质的聚合物骨架溶剂化调控

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-20 DOI: 10.1016/j.nanoen.2025.111537

Xiaoxue Wu , Qinghui Zeng , Jing Zhang , Yingkai Xia , Yeqiang Zhang , Juntao Ren , Rui Guo , Yi Ding , Yongteng Dong , Xinyang Yue , Shaobin Yang , Zheng Liang

High-performance electrolytes are crucial for the advancement of lithium (Li) metal batteries (LMBs). Adjusting the salt-to-solvent ratio and incorporating a polymeric framework have been identified as effective strategies to address the limitations of current LMBs. However, integrating fast Li-ion transport with a stable interface/electrolyte structure remains a challenge. Herein, an ether-based gel electrolyte (HP-SGE) is proposed, incorporating H-bonded polymers with solvate ionic liquid (SIL) to enhance cycling performance in LMBs. A solvation-induced dynamic-interaction strategy is established inside HP-SGE to simultaneously achieve high Li-ion conductivity (1.07 × 10⁻³ S cm⁻¹), a high Li-ion transference number (0.87), and a stable gel structure at room temperature. The interactions between polymer skeleton and high-concentration SIL have been analyzed, highlighting their effects on Li-ion solvation, ion transport, and the formation of the inorganic-rich electrode interphase. The HP-SGE system demonstrates exceptional electrochemical stability under ultra-high voltage operation (4.7 V), wide operational temperature (−20–60 ^○C), effectively mitigating dendrite proliferation while maintaining structural integrity. Furthermore, HP-SGE’s nonflammable and self-healing properties enhance the safety of LMBs, allowing them to pass the destructive test smoothly. These discoveries provide a new pathway to resolving stability issues associated with the ether-based electrolyte in durable LMBs.

高性能电解质对锂金属电池的发展至关重要。调整盐溶剂比和加入聚合物框架已被确定为解决当前lmb局限性的有效策略。然而，将锂离子快速输运与稳定的界面/电解质结构相结合仍然是一个挑战。本文提出了一种基于醚基凝胶电解质（HP-SGE），将氢键聚合物与溶剂离子液体（SIL）结合在一起，以提高lmb的循环性能。在HP-SGE内部建立了溶剂诱导的动态相互作用策略，同时实现了高锂离子电导率（1.07 × 10−3 S cm−1）、高锂离子转移数（0.87）和室温下稳定的凝胶结构。分析了聚合物骨架与高浓度SIL之间的相互作用，重点介绍了它们对锂离子溶剂化、离子传输和富无机电极界面形成的影响。HP-SGE系统在超高压（4.7 V）、宽工作温度（- 20-60〇C）下表现出优异的电化学稳定性，有效地减缓了枝晶扩散，同时保持了结构的完整性。此外，HP-SGE的不可燃和自愈特性增强了lmb的安全性，使其能够顺利通过破坏性测试。这些发现为解决与耐用lmb中醚基电解质相关的稳定性问题提供了新的途径。

{"title":"Polymer backbone-enabled solvation regulation of high-concentration ether electrolytes for high-voltage quasi-solid-state lithium metal batteries","authors":"Xiaoxue Wu , Qinghui Zeng , Jing Zhang , Yingkai Xia , Yeqiang Zhang , Juntao Ren , Rui Guo , Yi Ding , Yongteng Dong , Xinyang Yue , Shaobin Yang , Zheng Liang","doi":"10.1016/j.nanoen.2025.111537","DOIUrl":"10.1016/j.nanoen.2025.111537","url":null,"abstract":"<div><div>High-performance electrolytes are crucial for the advancement of lithium (Li) metal batteries (LMBs). Adjusting the salt-to-solvent ratio and incorporating a polymeric framework have been identified as effective strategies to address the limitations of current LMBs. However, integrating fast Li-ion transport with a stable interface/electrolyte structure remains a challenge. Herein, an ether-based gel electrolyte (HP-SGE) is proposed, incorporating H-bonded polymers with solvate ionic liquid (SIL) to enhance cycling performance in LMBs. A solvation-induced dynamic-interaction strategy is established inside HP-SGE to simultaneously achieve high Li-ion conductivity (1.07 × 10<sup>−3</sup> S cm<sup>−1</sup>), a high Li-ion transference number (0.87), and a stable gel structure at room temperature. The interactions between polymer skeleton and high-concentration SIL have been analyzed, highlighting their effects on Li-ion solvation, ion transport, and the formation of the inorganic-rich electrode interphase. The HP-SGE system demonstrates exceptional electrochemical stability under ultra-high voltage operation (4.7 V), wide operational temperature (−20–60 <sup>○</sup>C), effectively mitigating dendrite proliferation while maintaining structural integrity. Furthermore, HP-SGE’s nonflammable and self-healing properties enhance the safety of LMBs, allowing them to pass the destructive test smoothly. These discoveries provide a new pathway to resolving stability issues associated with the ether-based electrolyte in durable LMBs.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111537"},"PeriodicalIF":17.1,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145359549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound-powered piezoelectric hydrogel enables dual piezodynamic-chemodynamic therapy and immunomodulation against bacteria-infected burn wounds 超声驱动的压电水凝胶可以实现双重压电动力学-化学动力学治疗和免疫调节，以对抗细菌感染的烧伤创面

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-20 DOI: 10.1016/j.nanoen.2025.111535

Shubham Roy , Zhijin Fan , Zia Ullah , Muhammad Madni , Saikat Shyamal , Jhilik Roy , Neelanjana Bag , Longhu Sun , Xintong Qian , Yinghe Zhang , Wei Wang , Bing Guo

Current research in piezodynamic therapy (PZDT) primarily focuses on ultrasound-triggered generation of reactive oxygen species (ROS) for disease treatment. This work not only harness PZDT-driven ROS for effective bacterial eradication but also exploit the transient voltage impulses generated by piezoelectric materials under natural body movements of infected mice to activate immunomodulation in burn wounds. Furthermore, we integrate PZDT with chemodynamic therapy (CDT) within a thermoresponsive hydrogel matrix, enabling spatiotemporally controlled antibacterial action and regenerative healing. Rational Cu/Zn co-doping and atomic ordering engineering enhance lattice asymmetry, stabilize piezoelectric domains, and increase the piezoelectric coefficient, thereby amplifying ultrasound-triggered polarization and accelerating ROS production. Zn^2 + exhibits intrinsic anti-inflammatory effects, while Cu²⁺ catalyzes Fenton-like reactions for CDT at a relatively slow rate with prolonged therapeutic activity. A balanced Cu/Zn ratio (5:5) and optimized atomic ordering enhance redox activity, piezoelectric polarization, and collective ROS generation under exogenous US and endogenous H₂O₂. Besides, the hydrogel modulates immune responses by promoting macrophage polarization, alleviating inflammation, and supporting regeneration. With strong skin adhesion and on-demand activation, this hydrogel achieves effective bacterial clearance and accelerated skin repair in drug-resistant burn infections. This work presents a dual-modal therapeutic paradigm of hydrogel-integrated US-powered piezo-chemodynamic therapy for treating drug-resistant burn wound infections.

目前，压电动力疗法（PZDT）的研究主要集中在超声触发活性氧（ROS）的产生以治疗疾病。这项工作不仅利用pzdt驱动的ROS有效地消灭细菌，而且利用压电材料在感染小鼠自然身体运动下产生的瞬态电压脉冲来激活烧伤创面的免疫调节。此外，我们将PZDT与化学动力疗法（CDT）结合在热反应性水凝胶基质中，实现了时空可控的抗菌作用和再生愈合。合理的Cu/Zn共掺杂和原子有序工程增强了晶格不对称性，稳定了压电畴，增加了压电系数，从而放大了超声触发极化，加速了ROS的产生。Zn2 +具有固有的抗炎作用，而Cu2+催化CDT的fenton样反应速度相对较慢，治疗活性较长。平衡的Cu/Zn比（5:5）和优化的原子顺序增强了外源US和内源H2O2下的氧化还原活性、压电极化和集体ROS生成。此外，水凝胶通过促进巨噬细胞极化、减轻炎症和支持再生来调节免疫反应。具有很强的皮肤粘附性和按需激活，这种水凝胶在耐药烧伤感染中实现有效的细菌清除和加速皮肤修复。这项工作提出了一种双模式的治疗范例，水凝胶集成us动力压电化学动力学治疗耐药烧伤创面感染。

{"title":"Ultrasound-powered piezoelectric hydrogel enables dual piezodynamic-chemodynamic therapy and immunomodulation against bacteria-infected burn wounds","authors":"Shubham Roy , Zhijin Fan , Zia Ullah , Muhammad Madni , Saikat Shyamal , Jhilik Roy , Neelanjana Bag , Longhu Sun , Xintong Qian , Yinghe Zhang , Wei Wang , Bing Guo","doi":"10.1016/j.nanoen.2025.111535","DOIUrl":"10.1016/j.nanoen.2025.111535","url":null,"abstract":"<div><div>Current research in piezodynamic therapy (PZDT) primarily focuses on ultrasound-triggered generation of reactive oxygen species (ROS) for disease treatment. This work not only harness PZDT-driven ROS for effective bacterial eradication but also exploit the transient voltage impulses generated by piezoelectric materials under natural body movements of infected mice to activate immunomodulation in burn wounds. Furthermore, we integrate PZDT with chemodynamic therapy (CDT) within a thermoresponsive hydrogel matrix, enabling spatiotemporally controlled antibacterial action and regenerative healing. Rational Cu/Zn co-doping and atomic ordering engineering enhance lattice asymmetry, stabilize piezoelectric domains, and increase the piezoelectric coefficient, thereby amplifying ultrasound-triggered polarization and accelerating ROS production. Zn<sup>2 +</sup> exhibits intrinsic anti-inflammatory effects, while Cu<sup>2+</sup> catalyzes Fenton-like reactions for CDT at a relatively slow rate with prolonged therapeutic activity. A balanced Cu/Zn ratio (5:5) and optimized atomic ordering enhance redox activity, piezoelectric polarization, and collective ROS generation under exogenous US and endogenous H<sub>2</sub>O<sub>2</sub>. Besides, the hydrogel modulates immune responses by promoting macrophage polarization, alleviating inflammation, and supporting regeneration. With strong skin adhesion and on-demand activation, this hydrogel achieves effective bacterial clearance and accelerated skin repair in drug-resistant burn infections. This work presents a dual-modal therapeutic paradigm of hydrogel-integrated US-powered piezo-chemodynamic therapy for treating drug-resistant burn wound infections.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111535"},"PeriodicalIF":17.1,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145359553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vanadium-nitrogen bonding configurations: Crucial contribution for electrochemical zinc-ion storage 钒-氮键构型：电化学锌离子存储的关键贡献

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-20 DOI: 10.1016/j.nanoen.2025.111538

Jun Mei , Zhongqin Zheng , Haosong Han , Bingqian Zhang , Qianqian Yao , Shixue Dou

Vanadium-based electrode materials have been recognized as promising candidates for high-performance aqueous Zn-ion batteries. Various vanadium-containing materials with different crystal structures, surface chemistry, and physical state, have been synthesized for improving Zn-ion transport kinetics, however, the structure-performance of these configurations remains elusive. This study systematically investigates the crucial role of vanadium-nitrogen (V-N) bonding configurations in electrochemical Zn-ion transport behaviours using different types of vanadium oxides that are derived from ammonium vanadate precursor annealed under controlled atmospheres. Experimental and theoretical results verify that the high-coordination V-N bonding, as exemplified in the target material treated under nitrogen (N_r-NVO), could effectively lower the Zn-ion transport barrier and promote reaction reversibility upon cycles. This work elucidates the structural origins of efficient Zn-ion transport linked to specific V-N configurations, and bridges a critical knowledge gap by directly correlating bonding features with electrochemical performance. Also, these findings enrich fundamental understanding of electrochemical ion storage mechanisms and electrode design principles for developing high-performance through optimizing metal-ligand bonding environments.

钒基电极材料已被认为是高性能水性锌离子电池的有前途的候选者。为了改善锌离子的输运动力学，已经合成了各种具有不同晶体结构、表面化学和物理状态的含钒材料，然而，这些构型的结构性能仍然是难以捉摸的。本研究系统地研究了钒氮（V-N）键构型在电化学zn离子输运行为中的关键作用，使用不同类型的钒氧化物，这些氧化物来自于受控气氛下退火的钒酸铵前驱体。实验和理论结果验证了高配位的V-N键，如在氮气（Nr-NVO）处理的靶材料中，可以有效降低zn离子的传递势垒，促进循环反应的可逆性。这项工作阐明了与特定V-N构型相关的高效zn离子传输的结构起源，并通过直接将键合特征与电化学性能联系起来，弥合了一个关键的知识差距。此外，这些发现丰富了对电化学离子储存机制和电极设计原则的基本理解，从而通过优化金属配体键合环境来开发高性能。

{"title":"Vanadium-nitrogen bonding configurations: Crucial contribution for electrochemical zinc-ion storage","authors":"Jun Mei , Zhongqin Zheng , Haosong Han , Bingqian Zhang , Qianqian Yao , Shixue Dou","doi":"10.1016/j.nanoen.2025.111538","DOIUrl":"10.1016/j.nanoen.2025.111538","url":null,"abstract":"<div><div>Vanadium-based electrode materials have been recognized as promising candidates for high-performance aqueous Zn-ion batteries. Various vanadium-containing materials with different crystal structures, surface chemistry, and physical state, have been synthesized for improving Zn-ion transport kinetics, however, the structure-performance of these configurations remains elusive. This study systematically investigates the crucial role of vanadium-nitrogen (V-N) bonding configurations in electrochemical Zn-ion transport behaviours using different types of vanadium oxides that are derived from ammonium vanadate precursor annealed under controlled atmospheres. Experimental and theoretical results verify that the high-coordination V-N bonding, as exemplified in the target material treated under nitrogen (N<sub><em>r</em></sub>-NVO), could effectively lower the Zn-ion transport barrier and promote reaction reversibility upon cycles. This work elucidates the structural origins of efficient Zn-ion transport linked to specific V-N configurations, and bridges a critical knowledge gap by directly correlating bonding features with electrochemical performance. Also, these findings enrich fundamental understanding of electrochemical ion storage mechanisms and electrode design principles for developing high-performance through optimizing metal-ligand bonding environments.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111538"},"PeriodicalIF":17.1,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145359554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic modelling of charge transport in solid–liquid systems 固体-液体系统中电荷输运的动力学建模

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-20 DOI: 10.1016/j.nanoen.2025.111536

Hadrien Monluc , Delong He , Xiaoxin Pan , Jingwen Zhang , Liming Ding , Jiajia Shao , Zhong Lin Wang , Jinbo Bai

Liquid-solid charging systems (LS-CSs) have gained significant attention for their ability to harvest energy from low-power water sources and for their sensitivity in probing the electrical state of droplets. Despite numerous experimental studies, theoretical models remain limited. In this work, we present a comprehensive simulation framework that captures the coupled dynamics of a water droplet sliding on a solid surface, including charge transport via convection, diffusion, and electric migration. The model reproduces the entire process of a one-electrode LS-CS, from initial charging to saturation, and provides new insights into the formation of the electrical double layer and the electrohydrodynamic behavior of bouncing droplets. This approach offers a versatile tool for studying droplet-based energy harvesting and electrostatic systems, enabling systematic analysis and optimization of LS-CS devices and paving the way for broader applications in sensing, energy, and fluid manipulation.

液固充电系统（LS-CSs）因其从低功率水源中获取能量的能力以及探测液滴电学状态的灵敏度而获得了极大的关注。尽管有大量的实验研究，理论模型仍然有限。在这项工作中，我们提出了一个全面的模拟框架，该框架捕捉了水滴在固体表面滑动的耦合动力学，包括通过对流、扩散和电迁移进行的电荷传输。该模型再现了单电极LS-CS从初始充电到饱和的整个过程，为双电层的形成和弹跳液滴的电流体动力学行为提供了新的见解。这种方法为研究基于液滴的能量收集和静电系统提供了一种多功能工具，使LS-CS设备能够进行系统分析和优化，并为在传感、能量和流体操纵方面的更广泛应用铺平了道路。

引用次数: 0

Corrigendum to “Built-in field manipulation through a perovskite homojunction for efficient monolithic perovskite/silicon tandem solar cells” [Nano Energy 129 (2024) 109976] “通过钙钛矿同质结对高效单片钙钛矿/硅串联太阳能电池的内置场操纵”的更正[Nano Energy 129 (2024) 109976]

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-18 DOI: 10.1016/j.nanoen.2025.111534

Jianxun Li , Bita Farhadi , Siyi Liu , Lu Liu , Hui Wang , Minyong Du , Liyou Yang , Shaojuan Bao , Shan-Ting Zhang , Dongdong Li , Kai Wang , Shengzhong Liu

引用次数: 0

Synergistic effects between Pd single atoms and nanoscopic Pd atom clusters: Facilitating formation of Pd-N charge channels and strong internal electric fields for large-scale photocatalytic hydrogen evolution Pd单原子与纳米级Pd原子团簇之间的协同效应：促进Pd- n电荷通道的形成和大规模光催化析氢的强内部电场

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-16 DOI: 10.1016/j.nanoen.2025.111533

Zhengyu Zhou , Zhiliang Jin , Noritatsu Tsubaki

Single atoms (SAs) and nanoscale atom clusters (ACs) catalysts have garnered significant attention owing to their exceptional selectivity and abundant active sites. In this study, a chemical reduction method was employed to successfully anchor Pd, Au, and Pt elements onto COF (Tatp). Notably, the Tatp loaded with Pd exhibits superior hydrogen evolution performance. Utilizing AC-STEM and synchrotron radiation techniques, we demonstrate the coexistence of Pd SAs and Pd ACs on the Tatp (Pd SAs-ACs). Combined with DFT calculations, we have demonstrated a strong interaction between the electron-delocalized Pd SAs and the electron-localized N atoms within the imine bond. This interaction facilitates the establishment of the Pd-N electron transport channel. The incorporation of Pd ACs introduces numerous active sites for photocatalytic reactions while spontaneously generating a strong internal electric field (IEF). The synergistic interplay between Pd SAs and Pd ACs not only significantly reduces the charge transfer distance but also provides ample driving force for the efficient separation and migration of photogenerated electrons. We employed PdTatp3 for the square-meter-scale hydrogen evolution test, and the hydrogen production volume reached 22.96 mmol over a period of 10 h. This study proposes a promising strategy for harnessing the synergistic effect of SAs and nanoscale ACs to enhance photocatalytic hydrogen evolution performance.

单原子（SAs）和纳米级原子团簇（ACs）催化剂因其优异的选择性和丰富的活性位点而受到广泛关注。在本研究中，采用化学还原方法成功地将Pd、Au和Pt元素锚定在COF （Tatp）上。值得注意的是，负载Pd的Tatp具有优异的析氢性能。利用交流- stem和同步辐射技术，我们证明了Pd sa和Pd ACs在Tatp上共存（Pd sa -ACs）。结合DFT计算，我们已经证明了电子离域Pd - sa和亚胺键内电子定域N原子之间的强相互作用。这种相互作用促进了Pd-N电子传递通道的建立。Pd - ACs的掺入为光催化反应引入了许多活性位点，同时自发地产生强大的内部电场（IEF）。Pd - sa和Pd - ac之间的协同作用不仅大大缩短了电荷转移距离，而且为光生电子的高效分离和迁移提供了充足的动力。我们利用PdTatp3进行了平方米尺度的析氢实验，在10 h内产氢量达到22.96 mmol。本研究为利用sa和纳米级ac的协同效应来提高光催化析氢性能提供了一个有希望的策略。

{"title":"Synergistic effects between Pd single atoms and nanoscopic Pd atom clusters: Facilitating formation of Pd-N charge channels and strong internal electric fields for large-scale photocatalytic hydrogen evolution","authors":"Zhengyu Zhou , Zhiliang Jin , Noritatsu Tsubaki","doi":"10.1016/j.nanoen.2025.111533","DOIUrl":"10.1016/j.nanoen.2025.111533","url":null,"abstract":"<div><div>Single atoms (SAs) and nanoscale atom clusters (ACs) catalysts have garnered significant attention owing to their exceptional selectivity and abundant active sites. In this study, a chemical reduction method was employed to successfully anchor Pd, Au, and Pt elements onto COF (Tatp). Notably, the Tatp loaded with Pd exhibits superior hydrogen evolution performance. Utilizing AC-STEM and synchrotron radiation techniques, we demonstrate the coexistence of Pd SAs and Pd ACs on the Tatp (Pd SAs-ACs). Combined with DFT calculations, we have demonstrated a strong interaction between the electron-delocalized Pd SAs and the electron-localized N atoms within the imine bond. This interaction facilitates the establishment of the Pd-N electron transport channel. The incorporation of Pd ACs introduces numerous active sites for photocatalytic reactions while spontaneously generating a strong internal electric field (IEF). The synergistic interplay between Pd SAs and Pd ACs not only significantly reduces the charge transfer distance but also provides ample driving force for the efficient separation and migration of photogenerated electrons. We employed PdTatp3 for the square-meter-scale hydrogen evolution test, and the hydrogen production volume reached 22.96 mmol over a period of 10 h. This study proposes a promising strategy for harnessing the synergistic effect of SAs and nanoscale ACs to enhance photocatalytic hydrogen evolution performance.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111533"},"PeriodicalIF":17.1,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145306060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering strategy for achieving transparent aqueous multicolor long lifetime room temperature phosphorescent carbon dots 实现透明水性多色长寿命室温磷光碳点的工程策略

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-16 DOI: 10.1016/j.nanoen.2025.111532

Junfei Liao, Xingzhong Chen, Jiurong Li, Xiao Gong

Carbon dot-based room-temperature phosphorescent (RTP) materials are attracting more and more attention due to the exceptional optical properties. However, achieving stable afterglow emission in aqueous solution is a great challenge since high concentrations of dissolved oxygen in water severely quench triplet excitons. In this work, we report a multiple confinement structure strategy to realize multicolor tunable (blue to orange) and transparent aqueous phosphorescent carbon dots (CDs) for the first time. This approach synergistically restricts molecular motion of CDs through surface coordination and confinement within a three-dimensional nanosilica network, effectively suppressing nonradiative transitions. At the same time, phosphorescence emission can be amplified by tailored modification of abundant functional groups on surface of CDs. Thus, carbon dot-based silica nanocomposites (CDs@SiO₂) not only exhibit high transparency (> 95 %) and a long lifetime (1.5 s) in aqueous solution, but also have the ability to maintain a stable afterglow emission in harsh environments. Based on the advantages, novel multimodal anti-counterfeiting technologies, including Morse code and QR code encryption systems have been developed. This work proposes an engineering strategy for achieving multicolor transparent aqueous afterglow of CDs, laying a foundation for emerging applications in optical encryption and intelligent sensing.

碳点基室温磷光材料因其优异的光学性能而受到越来越多的关注。然而，在水溶液中实现稳定的余辉发射是一个巨大的挑战，因为水中高浓度的溶解氧会严重猝灭三重态激子。在这项工作中，我们首次报道了一种多重约束结构策略，以实现多色可调（蓝色到橙色）和透明的水性磷光碳点（cd）。这种方法通过在三维纳米二氧化硅网络中的表面配位和约束协同限制CDs的分子运动，有效地抑制非辐射跃迁。同时，通过对CDs表面丰富的官能团进行修饰，可以放大其磷光发射。因此，碳点基二氧化硅纳米复合材料（CDs@SiO2）不仅在水溶液中具有高透明度（> 95%）和长寿命（1.5 s），而且在恶劣环境中也能保持稳定的余辉发射。基于这些优点，人们开发了新型的多模态防伪技术，包括莫尔斯电码和QR码加密系统。本工作提出了一种实现多色透明cd水余辉的工程策略，为在光学加密和智能传感领域的新兴应用奠定了基础。

{"title":"Engineering strategy for achieving transparent aqueous multicolor long lifetime room temperature phosphorescent carbon dots","authors":"Junfei Liao, Xingzhong Chen, Jiurong Li, Xiao Gong","doi":"10.1016/j.nanoen.2025.111532","DOIUrl":"10.1016/j.nanoen.2025.111532","url":null,"abstract":"<div><div>Carbon dot-based room-temperature phosphorescent (RTP) materials are attracting more and more attention due to the exceptional optical properties. However, achieving stable afterglow emission in aqueous solution is a great challenge since high concentrations of dissolved oxygen in water severely quench triplet excitons. In this work, we report a multiple confinement structure strategy to realize multicolor tunable (blue to orange) and transparent aqueous phosphorescent carbon dots (CDs) for the first time. This approach synergistically restricts molecular motion of CDs through surface coordination and confinement within a three-dimensional nanosilica network, effectively suppressing nonradiative transitions. At the same time, phosphorescence emission can be amplified by tailored modification of abundant functional groups on surface of CDs. Thus, carbon dot-based silica nanocomposites (CDs@SiO<sub>2</sub>) not only exhibit high transparency (> 95 %) and a long lifetime (1.5 s) in aqueous solution, but also have the ability to maintain a stable afterglow emission in harsh environments. Based on the advantages, novel multimodal anti-counterfeiting technologies, including Morse code and QR code encryption systems have been developed. This work proposes an engineering strategy for achieving multicolor transparent aqueous afterglow of CDs, laying a foundation for emerging applications in optical encryption and intelligent sensing.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111532"},"PeriodicalIF":17.1,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145305799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive vibration-rotation integrated modulator for harvesting low-frequency energy toward self-powered vehicle intrusion alarming system 自供电车辆入侵报警系统低频能量采集的自适应振动-旋转集成调制器

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-15 DOI: 10.1016/j.nanoen.2025.111529

Kangjia Zhai , Li Zhang , Cheng Li , Yuanbo Li , Zehao Hou , Kangqi Fan , Rusen Yang

The pedestrian walkway area is prone to incidents of motor vehicle intrusion, posing a threat to pedestrian safety. Roadbed vibration energy can contribute to self-powered vehicle intrusion alarming (VIA) systems for improving pedestrian safety, but its efficient exploitation is highly difficult due to the adverse low-frequency and intermittent features. This paper introduces an adaptive vibration-rotation integrated modulator (VRIM) that can transform low-frequency vibrations directly to unidirectional and high-speed rotation to increase output power and extend output duration. Enabled by a simple-structured friction-driving mechanism and an innovative magnetic rotation rectifier, the VRIM can output 642 rpm high-speed rotation as actuated by 0.2 Hz low-frequency vibration. Based on the VRIM, a triboelectric-electromagnetic hybrid nanogenerator (VRIM-TEHG) is designed for implementing both energy harvesting and self-driven sensing of different vibration sources. It is demonstrated that, under 1 Hz low-frequency vibration, the VRIM-TEHG can deliver an electrical power of 71 mW and achieve a high output frequency of 160 Hz. After the vibration vanishes, the high-frequency electric outputs can still sustain for 148 s, indicating that the VRIM-TEHG can provide continuous electric outputs even if the vibration frequency is well below 0.01 Hz. A passive VIA system is further constructed with the VRIM-TEHG and its feasibility is verified through outdoor tests, which highlights the promising application of the VRIM-TEHG in harnessing ambient low-frequency vibration energy and achieving self-sufficient smart systems for transportation.

行人通道区域容易发生机动车辆闯入事故，对行人安全构成威胁。路基振动能量可以为自供电车辆入侵报警系统（VIA）提供能量，以提高行人的安全，但由于其低频和间歇性的不利特性，其有效利用难度很大。本文介绍了一种自适应振动-旋转集成调制器（VRIM），它可以将低频振动直接转换为单向高速旋转，从而提高输出功率和延长输出持续时间。通过结构简单的摩擦驱动机构和创新的磁旋转整流器，VRIM可以在0.2 Hz的低频振动驱动下输出642 rpm的高速旋转。在此基础上，设计了一种摩擦电-电磁混合纳米发电机（VRIM- tehg），实现了能量收集和不同振动源的自驱动传感。实验证明，在1 Hz的低频振动下，vtrim - tehg可以提供71 mW的电力，并实现160 Hz的高输出频率。振动消失后，高频电输出仍能持续148 s，说明即使振动频率远低于0.01 Hz， vtrim - tehg也能提供连续的电输出。利用VRIM-TEHG进一步搭建了被动式VIA系统，并通过室外试验验证了其可行性，凸显了VRIM-TEHG在利用环境低频振动能量、实现交通智能系统自给自足方面的广阔应用前景。

{"title":"Adaptive vibration-rotation integrated modulator for harvesting low-frequency energy toward self-powered vehicle intrusion alarming system","authors":"Kangjia Zhai , Li Zhang , Cheng Li , Yuanbo Li , Zehao Hou , Kangqi Fan , Rusen Yang","doi":"10.1016/j.nanoen.2025.111529","DOIUrl":"10.1016/j.nanoen.2025.111529","url":null,"abstract":"<div><div>The pedestrian walkway area is prone to incidents of motor vehicle intrusion, posing a threat to pedestrian safety. Roadbed vibration energy can contribute to self-powered vehicle intrusion alarming (VIA) systems for improving pedestrian safety, but its efficient exploitation is highly difficult due to the adverse low-frequency and intermittent features. This paper introduces an adaptive vibration-rotation integrated modulator (VRIM) that can transform low-frequency vibrations directly to unidirectional and high-speed rotation to increase output power and extend output duration. Enabled by a simple-structured friction-driving mechanism and an innovative magnetic rotation rectifier, the VRIM can output 642 rpm high-speed rotation as actuated by 0.2 Hz low-frequency vibration. Based on the VRIM, a triboelectric-electromagnetic hybrid nanogenerator (VRIM-TEHG) is designed for implementing both energy harvesting and self-driven sensing of different vibration sources. It is demonstrated that, under 1 Hz low-frequency vibration, the VRIM-TEHG can deliver an electrical power of 71 mW and achieve a high output frequency of 160 Hz. After the vibration vanishes, the high-frequency electric outputs can still sustain for 148 s, indicating that the VRIM-TEHG can provide continuous electric outputs even if the vibration frequency is well below 0.01 Hz. A passive VIA system is further constructed with the VRIM-TEHG and its feasibility is verified through outdoor tests, which highlights the promising application of the VRIM-TEHG in harnessing ambient low-frequency vibration energy and achieving self-sufficient smart systems for transportation.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111529"},"PeriodicalIF":17.1,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145295341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A mixed ion-electron thermoelectric generator with an activated carbon ionogel for heat harvesting from fluctuated and steady temperature gradients 含活性炭离子凝胶的混合离子-电子热电发生器，用于从波动和稳定温度梯度中收集热量

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-15 DOI: 10.1016/j.nanoen.2025.111527

Kun Zhang , Qi Qian , Cheng Xu , Zhijun Chen , Shouxin Liu , Jianyong Ouyang

Ionic thermoelectric (iTE) materials hold great potential for efficient heat-to-electricity conversion due to their exceptionally high thermopower. However, they can harvest only intermittent heat, and no power is generated under steady temperature gradient. In this study, we present a mixed ion-electron thermoelectric generator (MTEG) that can continuously generate electricity under not only fluctuated temperature but also steady temperature gradient. The active material is an ionogel embedded with activated carbon (AC) particles. It is a mixed ion-electron conductor as the ionic liquid is an ion conductor while the AC particles can form conductive networks for electron transport. The TE performance under steady temperature gradient is like that of the conventional thermoelectric generators (TEGs) with electronic materials. The MTEGs under the temperature gradient of 3 K can supply an output voltage of more than 7.9 mV·K⁻¹ to the external load of 25 kΩ, which is higher than that of the best electronic TE materials by 1–2 orders in magnitude. The TE behavior of the MTEGs is ascribed to the synergistic contributions of the Soret effect of the ions and hole tunneling through the AC networks.

离子热电（iTE）材料由于其异常高的热电性能，在高效热电转换方面具有巨大的潜力。然而，它们只能收集间歇性的热量，在稳定的温度梯度下不能发电。在这项研究中，我们提出了一种混合离子-电子热电发生器（MTEG），它不仅可以在波动的温度下连续发电，而且可以在稳定的温度梯度下连续发电。活性材料是一种嵌入活性炭（AC）颗粒的离子凝胶。它是一种离子-电子混合导体，因为离子液体是离子导体，而交流粒子可以形成导电网络进行电子传递。在稳定温度梯度下，热电发电机的性能与传统的电子材料热电发电机相当。温度梯度为3 K的mteg对外部负载25 kΩ可提供7.9 mV·K-1以上的输出电压，比最佳电子TE材料的输出电压高出1-2个数量级。MTEGs的TE行为归因于离子和空穴隧穿在交流网络中的索雷特效应的协同贡献。

{"title":"A mixed ion-electron thermoelectric generator with an activated carbon ionogel for heat harvesting from fluctuated and steady temperature gradients","authors":"Kun Zhang , Qi Qian , Cheng Xu , Zhijun Chen , Shouxin Liu , Jianyong Ouyang","doi":"10.1016/j.nanoen.2025.111527","DOIUrl":"10.1016/j.nanoen.2025.111527","url":null,"abstract":"<div><div>Ionic thermoelectric (iTE) materials hold great potential for efficient heat-to-electricity conversion due to their exceptionally high thermopower. However, they can harvest only intermittent heat, and no power is generated under steady temperature gradient. In this study, we present a mixed ion-electron thermoelectric generator (MTEG) that can continuously generate electricity under not only fluctuated temperature but also steady temperature gradient. The active material is an ionogel embedded with activated carbon (AC) particles. It is a mixed ion-electron conductor as the ionic liquid is an ion conductor while the AC particles can form conductive networks for electron transport. The TE performance under steady temperature gradient is like that of the conventional thermoelectric generators (TEGs) with electronic materials. The MTEGs under the temperature gradient of 3 K can supply an output voltage of more than 7.9 mV·K<sup>−1</sup> to the external load of 25 kΩ, which is higher than that of the best electronic TE materials by 1–2 orders in magnitude. The TE behavior of the MTEGs is ascribed to the synergistic contributions of the Soret effect of the ions and hole tunneling through the AC networks.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111527"},"PeriodicalIF":17.1,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145289030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular ordering enables high efficiency and stable all-polymer solar cells operated in temperature-variable environment 分子排序使全聚合物太阳能电池在变温环境下高效稳定运行

IF 17.1 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy

Pub Date : 2025-10-15 DOI: 10.1016/j.nanoen.2025.111531

Weichao Zhang , Hong Zhang , Mengni Wang , Yaochang Yue , Shengli Yue , Rongshen Yang , Shilin Li , Ming Zhang , Guanghan Zhao , Jin Zhou , Yali Chen , Yue Chen , Zhixiang Wei , Penggang Yin , Jianxin Kang , Yu Chen , Huiqiong Zhou , Yuan Zhang

All-polymer solar cells (all-PSC) have received vast progress recently. However, the complexity of polymer chain entanglements imposes barrier for improving charge carrier transport and photovoltage gains toward higher photovoltaic performance. Here, we present a study on molecular structure-voltage loss-device stability relationships in all-PSCs based on a group of A-D-A’-D-A type polymer acceptors (PY-IT, PY-DT and PY-FT) in blends with the polymer donor PM6. We show that the conformational rigidify of polymer acceptor plays a decisive role in reducing transport-related energetic disorder (σ) in blends and non-radiative recombination (ΔV_non-rad) for photovoltage loss. Notably, the PM6:PY-DT heterojunction achieves a low σ (0.281 eV), resulting in a low ΔV_non-rad (0.183 V), a high fill factor (78.34), and a PCE of 19.26 %. We further show that the reduced energetic and molecular disorder in the all-polymer heterojunction can lead to a phase morphology that is thermally and kinetically more stable under illumination. As a result, ΔV_non-rad growth under light-soaking is suppressed, enabling devices to retain 83 % and 91.9 % of their initial PCE after 1000 h of MPP tracking and five thermal cycles (205–353 K), respectively. These findings offer guidance for simultaneously improving efficiency and stability in organic solar cells toward practical applications.

全聚合物太阳能电池（all-PSC）近年来取得了巨大的进展。然而，聚合物链纠缠的复杂性给改善载流子传输和光电压增益带来了障碍，从而提高了光伏性能。本研究基于a -D-A ' -D-A型聚合物受体（PY-IT， PY-DT和PY-FT）与聚合物供体PM6共混物，研究了全pscs的分子结构-电压损耗-器件稳定性关系。我们发现聚合物受体的构象刚性在减少共混物中与输运相关的能量紊乱（σ）和光电压损失的非辐射重组（ΔVnon-rad）中起决定性作用。值得注意的是，PM6:PY-DT异质结实现了低σ (0.281 eV)，从而实现了低ΔVnon-rad （0.183 V）、高填充因子（78.34）和19.26%的PCE。我们进一步表明，全聚合物异质结中减少的能量和分子无序可以导致在光照下热和动力学更稳定的相形态。结果，ΔVnon-rad在光浸泡下的生长受到抑制，使器件在1000小时的MPP跟踪和5个热循环（205-353 K）后分别保持其初始PCE的83%和91.9%。这些发现为在实际应用中同时提高有机太阳能电池的效率和稳定性提供了指导。

{"title":"Molecular ordering enables high efficiency and stable all-polymer solar cells operated in temperature-variable environment","authors":"Weichao Zhang , Hong Zhang , Mengni Wang , Yaochang Yue , Shengli Yue , Rongshen Yang , Shilin Li , Ming Zhang , Guanghan Zhao , Jin Zhou , Yali Chen , Yue Chen , Zhixiang Wei , Penggang Yin , Jianxin Kang , Yu Chen , Huiqiong Zhou , Yuan Zhang","doi":"10.1016/j.nanoen.2025.111531","DOIUrl":"10.1016/j.nanoen.2025.111531","url":null,"abstract":"<div><div>All-polymer solar cells (all-PSC) have received vast progress recently. However, the complexity of polymer chain entanglements imposes barrier for improving charge carrier transport and photovoltage gains toward higher photovoltaic performance. Here, we present a study on molecular structure-voltage loss-device stability relationships in all-PSCs based on a group of A-D-A’-D-A type polymer acceptors (PY-IT, PY-DT and PY-FT) in blends with the polymer donor PM6. We show that the conformational rigidify of polymer acceptor plays a decisive role in reducing transport-related energetic disorder (σ) in blends and non-radiative recombination (Δ<em>V</em><sub>non-rad</sub>) for photovoltage loss. Notably, the PM6:PY-DT heterojunction achieves a low σ (0.281 eV), resulting in a low Δ<em>V</em><sub>non-rad</sub> (0.183 V), a high fill factor (78.34), and a PCE of 19.26 %. We further show that the reduced energetic and molecular disorder in the all-polymer heterojunction can lead to a phase morphology that is thermally and kinetically more stable under illumination. As a result, Δ<em>V</em><sub>non-rad</sub> growth under light-soaking is suppressed, enabling devices to retain 83 % and 91.9 % of their initial PCE after 1000 h of MPP tracking and five thermal cycles (205–353 K), respectively. These findings offer guidance for simultaneously improving efficiency and stability in organic solar cells toward practical applications.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"146 ","pages":"Article 111531"},"PeriodicalIF":17.1,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145295114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0