Solar Energy Materials最新文献

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Mechanism of the influence of thermal aging on flame-retardant microcapsulated phase-change materials for battery thermal safety 热老化对电池热安全阻燃微胶囊相变材料的影响机理
Solar Energy Materials Pub Date : 2026-06-17 DOI: 10.20517/energymater.2026.06
Gengfeng Zhao, Jian Deng, Beiwen Liang, Tingyu Wang, Wen Luo, Jiexin Du, Hongli Liu, Wensheng Yang, Yingbang Yao, Zikai Guo, Zhipeng Sun, Xinxi Li
{"title":"Mechanism of the influence of thermal aging on flame-retardant microcapsulated phase-change materials for battery thermal safety","authors":"Gengfeng Zhao, Jian Deng, Beiwen Liang, Tingyu Wang, Wen Luo, Jiexin Du, Hongli Liu, Wensheng Yang, Yingbang Yao, Zikai Guo, Zhipeng Sun, Xinxi Li","doi":"10.20517/energymater.2026.06","DOIUrl":"https://doi.org/10.20517/energymater.2026.06","url":null,"abstract":"Flame-retardant composite phase-change materials (CPCMs) often face low flame-retardant efficiency and performance degradation after temperature aging owing to flame-retardant migration, limiting their use in electric vehicle battery packs and marine power systems. To address these challenges, we propose an innovative flame-retardant microencapsulated CPCM comprising ammonium polyphosphate (APP), dipentaerythritol (DPER), and melamine cyanurate (MCA) (AD@MCA) to improve battery module thermal safety. The microcapsules, prepared via in situ polymerization, enhance the flame-retardant efficiency and cycling stability of APP. This study compares the properties of CPCMs containing microencapsulated flame retardants and traditional physically blended flame retardants before and after thermal aging. Results show that the synergistic effect between MCA and DPER in the microencapsulated structure markedly improves the flame-retardant efficiency and cycling stability of APP. Furthermore, CPCMs containing microencapsulated flame retardants exhibit excellent battery thermal management performance and delay thermal runaway trigger times. This study presents a novel approach for developing multifunctional flame-retardant CPCMs for battery packs, addressing key challenges in battery thermal safety under extreme conditions.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148394494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MoS2-doped polyvinyl alcohol nanofiber films via electrospinning for high-performance triboelectric nanogenerators 静电纺丝法制备高性能摩擦电纳米发电机用二硫化钼掺杂聚乙烯醇纳米纤维薄膜
Solar Energy Materials Pub Date : 2026-01-21 DOI: 10.20517/energymater.2025.157
Chuanrui Chen, Jiaqi Lu, Dinku Hazarika, Kaihang Zhang, Jianhui Wu, Jiafeng Ni, Rui Wan, Liangquan Xu, Jie Li, Xinyu Cai, Xi Yang, Fengling Zhuo, Hao Jin, Zhi Ye, Shurong Dong, Jikui Luo
{"title":"MoS2-doped polyvinyl alcohol nanofiber films via electrospinning for high-performance triboelectric nanogenerators","authors":"Chuanrui Chen, Jiaqi Lu, Dinku Hazarika, Kaihang Zhang, Jianhui Wu, Jiafeng Ni, Rui Wan, Liangquan Xu, Jie Li, Xinyu Cai, Xi Yang, Fengling Zhuo, Hao Jin, Zhi Ye, Shurong Dong, Jikui Luo","doi":"10.20517/energymater.2025.157","DOIUrl":"https://doi.org/10.20517/energymater.2025.157","url":null,"abstract":"Electrospinning enables the fabrication of nanofiber films with large active surface area, high porosity, and controllable filler orientation, offering distinct advantages for fabricating high-performance triboelectric nanogenerators (TENGs). Here, we develop MoS2-doped electrospun polyvinyl alcohol (PVA) films for TENG fabrication and reveal the underlying mechanisms of their enhanced triboelectric performance. Compared with spin-coated films, electrospun films intrinsically deliver higher output due to their fibrous morphology, while incorporation of MoS2 nanosheets further improves the performance. TENGs with the optimized 2 wt.% MoS2-PVA electrospun film reached 994.0 V, 111.0 mA·m-2, and 136.3 μC·m-2, corresponding to 3.8, 3.8, and 3.0 fold enhancements over the spin-coated pristine PVA TENG. Mechanistic studies by experiments and theoretical analysis showed that this remarkable enhancement arises from the combined effects of morphology-driven enlargement of effective contact area, MoS2-induced surface charge modulation, and nanosheet alignment-induced piezoelectric polarization. Detailed material characterizations, COMSOL simulations, and molecular dynamic calculations provide quantitative and atomistic insights into these contributions. These results establish a coherent structure-property-performance relationship and provide design rules for durable, biocompatible, and high-output TENGs, highlighting their promise for wearable energy harvesting and self-powered sensing applications.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/published/article/b3b696c9df4c12df2bdf7b42d356fcb7/em50157.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147902642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Plasma-engineered sandwich-structured N-doped carbon@TiNb 2 O 7 with vertical graphene skeletons for ultrahigh-rate and long-cycling lithium storage 具有垂直石墨烯骨架的等离子体工程三明治结构n掺杂carbon@TiNb 2 O 7,用于超高速率和长周期锂存储
Solar Energy Materials Pub Date : 2025-12-02 DOI: 10.20517/energymater.2025.122
J. Li, Chong Tang, Li Chen, Tengfei Zhang, Xinqi Liang, Yifa Sheng, Xinhui Xia, Yongqi Zhang, Jun Liu
{"title":"Plasma-engineered sandwich-structured N-doped carbon@TiNb <sub>2</sub> O <sub>7</sub> with vertical graphene skeletons for ultrahigh-rate and long-cycling lithium storage","authors":"J. Li, Chong Tang, Li Chen, Tengfei Zhang, Xinqi Liang, Yifa Sheng, Xinhui Xia, Yongqi Zhang, Jun Liu","doi":"10.20517/energymater.2025.122","DOIUrl":"https://doi.org/10.20517/energymater.2025.122","url":null,"abstract":"The rapid expansion and booming development of the lithium-ion battery market have raised escalating concerns over safety issues. Titanium niobium oxide (TiNb2O7, TNO) is a highly promising, safe anode material due to its intercalation reaction mechanism and high operating potential. However, its intrinsic low electronic conductivity severely hinders practical implementation. To address this, we developed a plasma-assisted interfacial engineering strategy to fabricate self-supported sandwich-structured N-doped carbon (N-C)@TNO composites. This unique “conductive skeleton || active core || protective shell” architecture comprises: (1) vertical graphene (VG) arrays acting as three-dimensional charge highways, (2) TNO nanoparticles (30-60 nm) serving as redox-active centers, and (3) uniform N-C shells (~3 nm). The synergistic coupling between the VG skeleton and the N-C coating establishes an all-around conductive network. The optimized N-C@TNO anode delivers exceptional rate capability (300.1 mAh g-1 at 0.2 C and 214.4 mAh g-1 at 40 C) and ultralong cycling stability (95.38% capacity retention after 5,000 cycles at 20 C), outperforming most reported TNO-based anodes. This work presents a novel concept for designing high-power storage electrodes, particularly multistage composite structures.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing the activity and stability of RuO2-based catalyst via nano-confinement effect for O2 evolution reaction in acid electrolyte 在酸性电解液中,利用纳米约束效应提高钌基催化剂的活性和稳定性
Solar Energy Materials Pub Date : 2025-09-02 DOI: 10.20517/energymater.2025.97
Shu‐kai Liu, Huang Tan, Gaole Dai, Shiyun Xiong, Yu Zhao, Benxia Li
{"title":"Enhancing the activity and stability of RuO<sub>2</sub>-based catalyst <i>via</i> nano-confinement effect for O<sub>2</sub> evolution reaction in acid electrolyte","authors":"Shu‐kai Liu, Huang Tan, Gaole Dai, Shiyun Xiong, Yu Zhao, Benxia Li","doi":"10.20517/energymater.2025.97","DOIUrl":"https://doi.org/10.20517/energymater.2025.97","url":null,"abstract":"The oxygen evolution reaction (OER), as a pivotal process in electrochemical water splitting, directly determines energy conversion efficiency. Ruthenium (Ru)-based catalysts have gained considerable attention in recent years due to their decent intrinsic activity in acidic media. Previous studies have demonstrated that while Ru exhibits superior OER activity compared to RuO2 in acidic environments, its operational stability remains markedly inferior. This performance dichotomy, coupled with the persistent challenges of active species dissolution and catalyst particle aggregation during prolonged operation, significantly hinders their practical implementation in electrochemical systems. To address these challenges, this study develops a carbon nanotube (CNT)/Fe-Ni@RuO2@PANI-350 composite catalyst composed of RuO2 nanoparticles supported on bimetallic Fe-Ni modified CNTs (CNT/Fe-Ni) and encapsulated with polyaniline (PANI). This catalyst utilizes the anchoring effect of bimetallic Fe-Ni sites and the spatial confinement effect of PANI coating layer, effectively inhibiting the dissolution and agglomeration of RuO2 during both high-temperature processing and electrochemical operation, thereby significantly enhancing electrochemical stability. The anchoring strength of RuO2 nanoparticles on CNT/Fe-Ni support via the nano-confinement effect, as well as the microscopic mechanisms underlying the performance enhancement, are revealed by density functional theory calculations and experimental characterizations. The composite catalyst demonstrates fascinating OER performance in 0.5 M H2SO4, exhibiting a low Tafel slope of 39.1 mV dec-1 as well as low overpotentials of 188 and 225 mV at current densities of 10 and 100 mA cm-2, respectively. Remarkably, the composite catalyst demonstrates significantly enhanced stability, exhibiting only ~30 mV overpotential increase during 150 h continuous operation at 10 mA cm-2. This study highlights a simple yet effective nano-confinement strategy to address the challenges of Ru-based catalysts, and provides a practical paradigm for designing and preparing highly efficient OER electrocatalysts with enhanced stability.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/published/article/1b737f4e67a1b46079588701cb9b8c8d/em5097.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Anion-rich Ir-doped CoOx for boosting oxygen evolution reaction in water electrolysis 富阴离子掺铁CoOx促进水电解析氧反应
Solar Energy Materials Pub Date : 2025-07-07 DOI: 10.20517/energymater.2025.21
Wan Rong, Kang Huang, Longlong Dong, Jiuyang Xia, Rui Dang, Yunfei Chen, Jianfei Liu, Qigao Cao, Bowei Zhang, Junsheng Wu
{"title":"Anion-rich Ir-doped CoO<sub>x</sub> for boosting oxygen evolution reaction in water electrolysis","authors":"Wan Rong, Kang Huang, Longlong Dong, Jiuyang Xia, Rui Dang, Yunfei Chen, Jianfei Liu, Qigao Cao, Bowei Zhang, Junsheng Wu","doi":"10.20517/energymater.2025.21","DOIUrl":"https://doi.org/10.20517/energymater.2025.21","url":null,"abstract":"Owing to the sluggish kinetics of oxygen evolution reaction (OER) in electrochemical water electrolysis process, efficient and durable OER electrocatalysts are crucially needed. However, it is a great challenge to improve the comprehensive performance of OER electrocatalysts by utilizing various synergistic methodologies. To solve these issues, herein, Ir-doped Co-based compounds with regulated anions were synthesized using a coprecipitation method as the electrodes for boosting the OERs. Doping with Ir atoms modified the coordination environments and electronic structures of the CoOx-CO32- lattice, and the generated Co3+ species promoted the generation of active species for the OER. It is worthwhile noting that a hybrid crystalline/amorphous IrCoOx-CO32- compound was obtained with an Ir content of 10.09 wt.% and a large amount of Co3+, and demonstrated excellent electrocatalytic OER performance. The overpotential required for the developed IrCoOx-CO32- to achieve 10 mA cm-2 was as low as 207 mV with a very low Tafel slope of 61.7 mV dec-1, which is better than the commercial IrO2. Furthermore, anions created in the IrCoOx significantly promoted the OER, and their effects were decreased in the order of CO32- &gt; PO43- &gt; OH-. This work clarifies the synergistic mechanism of cations and anions on the electrocatalytic OER performance of Co-based compounds, providing new insights for designs of high-performance OER electrocatalysts for water electrolysis.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Boosted thermopower in aqueous thermocells through additives-induced ionic regulation for low-grade heat harvesting 通过添加剂诱导的低品位热收集的离子调节,提高了水热电池的热功率
Solar Energy Materials Pub Date : 2025-06-12 DOI: 10.20517/energymater.2025.34
Yijie Mu, Kedi Li, Kaiyu Mu, Yung‐Kang Peng, Shien‐Ping Feng
{"title":"Boosted thermopower in aqueous thermocells through additives-induced ionic regulation for low-grade heat harvesting","authors":"Yijie Mu, Kedi Li, Kaiyu Mu, Yung‐Kang Peng, Shien‐Ping Feng","doi":"10.20517/energymater.2025.34","DOIUrl":"https://doi.org/10.20517/energymater.2025.34","url":null,"abstract":"Aqueous thermocells are promising techniques for the conversion of low-grade waste heat into electricity. However, current improvement strategies are mainly focused on single redox ions and sacrifice the electrical conductivity due to concentrated molecular additives. Herein, we report a chemical additives-regulated thermocell that introduced two ionic additives, guanidine hydrochloride and cysteamine hydrochloride, into 0.4 M ferri/ferrocyanide {[Fe(CN)6]3-/4-} electrolyte to simultaneously exert the selective crystallization effect on [Fe(CN)6]4- and the chemical regulation effect for [Fe(CN)6]3-, synergistically inducing concentration gradients of both redox ions between two electrodes, thereby improving the thermoelectric performance. Our thermocell obtained a high thermopower of 4.34 mV K-1 with comparable electrical conductivity and a Carnot-relative efficiency of 5.50% with minimal amounts of the two additives, showing adaptability to various cell orientations and thus different practical scenarios. A record-high thermopower of 9.06 mV K-1 and a Carnot-relative efficiency of 12.65% were achieved by adopting optimized concentrations of two additives under cold-over-hot orientation. A 20-unit module was developed to directly power various electronics, demonstrating its feasibility for low-grade heat harvesting.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/published/article/b39b40447b11c23e320bccc01a8c2612/em5034.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Design of a polymer electrolyte membrane for enhanced zinc anode stability in reversible aqueous zinc-ion batteries 一种聚合物电解质膜的设计,用于增强可逆水锌离子电池中锌阳极的稳定性
Solar Energy Materials Pub Date : 2025-05-16 DOI: 10.20517/energymater.2024.299
Qi Deng, Weibin Zhou, Hongrui Wang, Qiang Ma, Changzhu Li, Xiongwei Wu, Yuping Wu
{"title":"Design of a polymer electrolyte membrane for enhanced zinc anode stability in reversible aqueous zinc-ion batteries","authors":"Qi Deng, Weibin Zhou, Hongrui Wang, Qiang Ma, Changzhu Li, Xiongwei Wu, Yuping Wu","doi":"10.20517/energymater.2024.299","DOIUrl":"https://doi.org/10.20517/energymater.2024.299","url":null,"abstract":"Aqueous zinc-ion batteries (ZIBs) hold great promise for energy storage applications. Nevertheless, the realization of high-capacity ZIBs with extended cycle durability remains a significant scientific challenge, predominantly attributed to two inherent limitations: the uncontrollable dendritic growth and concomitant side reactions. In this study, we present a polymer electrolyte membrane denoted as TAC, which addresses these challenges by enhancing the uniform distribution of zinc ions. By incorporating phenolic hydroxyl groups from tannic acid (TA) onto the surface of cellulose fibers, TAC is synthesized, which not only effectively shields both the front and back surfaces of the zinc anode from corrosive effects of the liquid electrolyte, but also exhibits a high liquid-retention capacity under pressures up to 5 MPa. Combining density functional theory simulations with experimental investigations, we demonstrate that the phenolic hydroxyl groups from TA actively engage with zinc ions, thereby significantly reducing the desolvation energy during the plating/stripping processes of the zinc anode. The assembled battery utilizing 1% TAC achieves remarkable performance, retaining 83.1% of its discharge capacity after 1,000 cycles at a current density of 5 C. Moreover, it exhibits high reversibility, high coulombic efficiency of 99.9%, and an impressive lifespan exceeding 2,300 h at 0.5 mA cm-2. Furthermore, 1% TAC demonstrates excellent cycling stability across four different electrolyte systems [ZnSO4, Zn(CF3SO3)2, Zn(OAc)2, and ZnCl2], highlighting its outstanding compatibility across diverse electrolyte compositions. The exceptional performance of the assembled batteries underscores the efficacy of our design, offering a novel strategy for the development and fabrication of polymer electrolyte membranes tailored for aqueous ZIBs.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/da72d6e7-9d7f-4904-abd8-e292f04381db/em40299.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Constructing an enhanced charge-mass transfer passage for silicon anodes to achieve increased capacity under high-rate conditions 为硅阳极构建一个增强的电荷-质量传递通道,以实现高速率条件下容量的增加
Solar Energy Materials Pub Date : 2025-04-28 DOI: 10.20517/energymater.2024.308
Jifei Liu, Yongzhi Wan, Kefeng Wang, Kai Wang, Wanjun Sun, Jianfeng Dai, Zengpeng Li, Feitian Ran
{"title":"Constructing an enhanced charge-mass transfer passage for silicon anodes to achieve increased capacity under high-rate conditions","authors":"Jifei Liu, Yongzhi Wan, Kefeng Wang, Kai Wang, Wanjun Sun, Jianfeng Dai, Zengpeng Li, Feitian Ran","doi":"10.20517/energymater.2024.308","DOIUrl":"https://doi.org/10.20517/energymater.2024.308","url":null,"abstract":"Silicon (Si) holds promise as an anode material for next-generation lithium-ion batteries due to its high theoretical capacity. However, practical applications are impeded by structural damage from volume expansion. Here, we designed a novel Si/CNFs/C anode by integrating mesoporous Si particles, carbon nanofibers (CNFs), and carbon quantum dots into a three-dimensional (3D) architecture via a one-step magnesiothermic reduction process. This design significantly enhances both electron and ion conductivity, alleviates the volume expansion of Si particles, and ensures mechanical stability during battery operation. Consequently, batteries with the Si/CNFs/C anode exhibit a reversible capacity of 1,172.4 mAh g-1 after 200 cycles at 0.1 A g-1 and maintain 1,107.7 mAh g-1 after 1,000 cycles at 1 A g-1. Notably, after 1,000 cycles at a high current density of 1 A g-1, the capacity remains nearly comparable to that after 100 cycles at 0.1 A g-1, attributed to significant pseudocapacitive characteristics that facilitate high performance under elevated current densities. Furthermore, we employed distribution of relaxation times analysis alongside other electrochemical techniques to investigate changes in ion transport pathways and the evolving role of Si in the energy storage process. Our design and analysis provide valuable insights for optimizing 3D conductive architectures and understanding the dynamic electrochemical mechanisms of Si-based anodes, advancing the development of high-performance lithium-ion batteries.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/09463f1c-8c4f-4696-8157-eb079a34e0cb/em40308.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailoring crystal planes and oxygen vacancies of ceria for enhanced catalytic performance of single-atom Ru in hydrogenative dearomatization of lignin-derived phenols 调整二氧化铈的晶体平面和氧空位以增强单原子Ru在木质素衍生的酚的氢化脱芳反应中的催化性能
Solar Energy Materials Pub Date : 2025-04-21 DOI: 10.20517/energymater.2024.251
Baoyu Wang, Ximing Yan, Ming Zhou, Hu Li
{"title":"Tailoring crystal planes and oxygen vacancies of ceria for enhanced catalytic performance of single-atom Ru in hydrogenative dearomatization of lignin-derived phenols","authors":"Baoyu Wang, Ximing Yan, Ming Zhou, Hu Li","doi":"10.20517/energymater.2024.251","DOIUrl":"https://doi.org/10.20517/energymater.2024.251","url":null,"abstract":"Lignin-based guaiacol and its derivatives can be hydrogenated to synthesize 2-methoxycyclohexanols (2-MCHs), widely used in the pharmaceutical industry, while the efficient catalytic conversion of guaiacols into 2-MCHs is challenging due to the interference of the side reaction of CAr-OCH3 bond cleavage. In this work, highly selective hydrogenation of various guaiacyl lignin-derived phenols to 2-MCHs (yields of 86%-97%) was realized over a single-atom Ru-based catalyst (Ru1/o -CeO2-ov) that preferentially exposes the CeO2(111) plane and has abundant oxygen vacancies. Control experiments and mechanism studies expounded that Ru-O-Ce is the active site for hydrogenation of aromatic ring in guaiacols, and the exposed (111) plane and abundant oxygen vacancies of ceria can reduce the activation energy of aromatic ring hydrogenation, thereby enabling guaiacols to generate the corresponding hydrogenated products with high selectivity. Response surface optimization experiments indicated that temperature and time have relatively more significant effects on the 2-MCH yield. Moreover, the Ru1/o -CeO2-ov catalyst exhibited excellent reusability, and was extensively applicable to the hydrogenative dearomatization of different types of lignin-derived phenols, providing a unique solution for upgrading biomass feedstock into specific structural chemicals.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/88a82d9b-ac8c-413f-9f54-340b907381a0/em40251.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147906541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Zwitterionic gemini additive as interface engineers for long-life aqueous Zn/TEMPO flow batteries with enhanced areal capacity 双离子双离子添加剂作为界面工程师的长寿命水性锌/TEMPO液流电池具有增强的面积容量
Solar Energy Materials Pub Date : 2025-03-27 DOI: 10.20517/energymater.2024.161
Feiyang Hu, Zhiwen Cui, Zhen Dong, Liyuan Jiang, Nwaji Njemuwa Njoku, Wenjun Dong, Hao Fan, Mahalingam Ravivarma, Jianbao Wu, Duanyang Kong, Jiangxuan Song
{"title":"Zwitterionic gemini additive as interface engineers for long-life aqueous Zn/TEMPO flow batteries with enhanced areal capacity","authors":"Feiyang Hu, Zhiwen Cui, Zhen Dong, Liyuan Jiang, Nwaji Njemuwa Njoku, Wenjun Dong, Hao Fan, Mahalingam Ravivarma, Jianbao Wu, Duanyang Kong, Jiangxuan Song","doi":"10.20517/energymater.2024.161","DOIUrl":"https://doi.org/10.20517/energymater.2024.161","url":null,"abstract":"Aqueous Zn-based flow batteries often face issues such as poor reversibility and short lifespan due to irregular Zn deposition and detrimental side reactions. To address these challenges, we developed a zwitterionic gemini additive, N,N′-bis(3-propanesulfonic acid)-3,3′-bipyridinium (SPr-Bpy), to enhance Zn plating/stripping behavior and optimize the Zn2+ solvation structure. The dual sulfonate groups influence the Zn2+ solvation shell and anchor SPr-Bpy to the Zn surface through multi-site interactions. Additionally, the bipyridinium structure forms an electrostatic shielding layer, suppressing excessive Zn2+ accumulation, promoting uniform Zn deposition, and thus mitigating dendrite formation and hydrogen evolution. Consequently, the Zn||Zn symmetric cells exhibit an impressive lifespan of 250 h, while the Zn||Cu asymmetric cells achieve a high average Coulombic efficiency of 99.8% over 450 cycles. Moreover, SPr-Bpy significantly improves Zn/TEMPO flow battery performance, achieving a high areal capacity of 24.4 mAh cm-2 with an exceptional capacity retention of 99.992%/cycle over 500 cycles.","PeriodicalId":21863,"journal":{"name":"Solar Energy Materials","volume":"5 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://f.oaes.cc/xmlpdf/eeaee96d-7221-47be-84e7-57a8a9ea8d7a/em40161.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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