Journal of Materials Chemistry A最新文献_第7页

Boosting redox electrochemistry of aromatic imide polymer by coupling sulfur-heterocyclic ring for advanced all-organic aqueous magnesium-ion batteries 硫-杂环耦合促进高级全有机镁离子水电池中芳香族亚胺聚合物氧化还原电化学

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-27 DOI: 10.1039/d5ta04954g

Xiangcai Li, Zhijian Fu, Heng Zhang, Dongxiang Geng, Ziming Liu, Genxi Yu, Dawei Sha, Jun Yang, Chao Yan

{"title":"Boosting redox electrochemistry of aromatic imide polymer by coupling sulfur-heterocyclic ring for advanced all-organic aqueous magnesium-ion batteries","authors":"Xiangcai Li, Zhijian Fu, Heng Zhang, Dongxiang Geng, Ziming Liu, Genxi Yu, Dawei Sha, Jun Yang, Chao Yan","doi":"10.1039/d5ta04954g","DOIUrl":"https://doi.org/10.1039/d5ta04954g","url":null,"abstract":"Easy dissolution and low redox-activity are the main obstacles to limit the sustainability of organic electrode materials applied in aqueous magnesium-ion batteries (AMIBs). To conquer these issues, herein, we developed a novel aromatic polyimide-based organic polymer material (labeled as PTTDA) by coupling an aromatic imide with thiophene-based sulfur heterocyclic ring for using as a promising electrode material in AMIBs. The constructed PTTDA molecule contains highly redox-reversibile thioether linkages and imide bonds and features long-range conjugated structure, which can synergistically enhance electrochemical activity and structural stability for reversible Mg2+ storage in a MgCl2 aqueous solution. As a result, the PTTDA employed as active material for AMIB anode delivers exceptional rate capability (107.7 mA h g-1 at 20.0 A g-1) and ultralong cycling stability (83.4% of capacity retention after 10,000 cycles). Besides, the all-organic full cell assembled with the PTTDA anode and the polyindole cathode achieves an outstanding power/energy density and long lifespan. This work provides a novel approach to the sustainable development of organic electrode materials and their potential application in aqueous metal-ion batteries.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"90 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145153694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Opaque, transparent, and colored low-emissivity materials for mid-infrared thermal management 用于中红外热管理的不透明、透明和有色低发射率材料

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta05910k

Shihao Cheng, Hanyuan Zhang, Ziyuan Zhu, Shutong Qin, Linai Zhou, Yuqi Wei, Weilin Xu, Jun Wan, Bin Hu

{"title":"Opaque, transparent, and colored low-emissivity materials for mid-infrared thermal management","authors":"Shihao Cheng, Hanyuan Zhang, Ziyuan Zhu, Shutong Qin, Linai Zhou, Yuqi Wei, Weilin Xu, Jun Wan, Bin Hu","doi":"10.1039/d5ta05910k","DOIUrl":"https://doi.org/10.1039/d5ta05910k","url":null,"abstract":"Mid-infrared (MIR) low-emissivity (εMIR) materials are central to radiative thermal management, enabling non-contact heat regulation in aerospace systems, infrared camouflage, and energy-efficient building envelopes. Although significant advances have been made in reducing emissivity through compositional optimization and structural engineering, most studies remain confined to conventional material classifications and focus narrowly on emissivity metrics. Crucially, the optical properties in the visible range, especially coloration which governs camouflage and functional aesthetics, as well as transparency, have been largely overlooked despite their relevance to multifunctionality. This review addresses gap by establishing a structure–property–optics framework classifying low εMIR materials into three categories based on visible-light behavior: opaque, transparent, and colored. Each category is analyzed in terms of microstructural design, spectral regulation strategies, and application requirements. Emphasis is placed on interplay between electromagnetic responses and structural features such as surface topology, photonic resonance, and interfacial coupling. Advanced approaches for MIR thermal regulation are discussed, including radiative cooling, selective heating, and tunable emissivity, with attention to mechanisms such as bandgap modulation, phase transition, and localized mode control. The review concludes by outlining challenges in broadband control, structural durability, scalable fabrication, and proposing future directions toward multifunctional, optically adaptive, thermally efficient low εMIR systems.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"19 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Advanced n-type ionic hydrogel with simultaneously enhanced thermoelectric and mechanical performances via the synergy of hydrophilic and hydrophobic polymers 先进的n型离子水凝胶，通过亲水性和疏水性聚合物的协同作用，同时增强热电和机械性能

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta06737e

Qiaoman Hu, Yang Pan, Lu Li, Yangming Feng, Gang Wang, Shiyu Liu, Jiang Cheng, Hong Wu, Shaoyun Guo, Kangming Xu

{"title":"Advanced n-type ionic hydrogel with simultaneously enhanced thermoelectric and mechanical performances via the synergy of hydrophilic and hydrophobic polymers","authors":"Qiaoman Hu, Yang Pan, Lu Li, Yangming Feng, Gang Wang, Shiyu Liu, Jiang Cheng, Hong Wu, Shaoyun Guo, Kangming Xu","doi":"10.1039/d5ta06737e","DOIUrl":"https://doi.org/10.1039/d5ta06737e","url":null,"abstract":"Ionic thermoelectric (i-TE) gels are considered as promising candidates for wearable electronics due to their green, flexibility and directly converting low-grade waste heat into electricity. However, the comprehensive performance of n-type reported so far lags far behind p-type owing to multiple conflicts among negative thermopower, ionic conductivity, strength, and toughness, hindering large-scale applications. Here, based on the good biocompatibility of polyvinyl alcohol (PVA) and poly (thioctic acid) (PTA), a bio-inspired design of hydrophilic-hydrophobic dual network structure is developed for the first time to enhance the TE and mechanical properties simultaneously. The PTA forms stable coordination interaction with cations, while the PVA provides sufficient paths for anions, as well as the dual network structure contributes to the mechanical properties. With the synergy of hydrophilic PVA and hydrophobic PTA, the optimized ionic hydrogel exhibits giant negative thermopower (-16.68 mV K -1 ), excellent ionic conductivity (1.084 S m -1 ), low thermal conductivity (0.36 W m -1 K -1 ), high tensile strength (>4 MPa), huge elongation at break (>1300%), superb toughness (>31 MJ m -3 ) at ambient environment, representing the best research until now on n-type i-TE gels with such excellent TE and mechanical properties, comparable to the state-of-the-art p-type. Besides, the i-TE hydrogel also presents application potentials in temperature sensors and thermoelectric generators. This work creates a new milestone in advanced n-type i-TE gels by the synergy of various polymer-ion interactions.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"2 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Aqueous All-Iron Flow Batteries using Surface-Modified Carbon Electrodes Improved via Electrochemical Exfoliation 电化学剥离改进表面改性碳电极的全铁液流电池

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta05698e

Yumin Oh, Mingyu Shin, Yongchai Kwon

{"title":"Aqueous All-Iron Flow Batteries using Surface-Modified Carbon Electrodes Improved via Electrochemical Exfoliation","authors":"Yumin Oh, Mingyu Shin, Yongchai Kwon","doi":"10.1039/d5ta05698e","DOIUrl":"https://doi.org/10.1039/d5ta05698e","url":null,"abstract":"The exploration of cost-effective and high-performance electrodes is essential for advancing aqueous flow battery (AFB) technology, particularly for the AFBs employing iron–organic complexes as active material for electrolytes. In this study, an electrochemically exfoliated carbon paper (Exf-CP) electrode with a porous carbon nanosheet structure fabricated via a simple high-voltage treatment in a phosphate buffer is proposed as new electrode for AFBs. The Exf-CP exhibits significantly enhanced electrochemical activity and wettability owing to the introduction of abundant carbon defects and oxygen-containing functional groups. To evaluate whether its surface modification and defect generation are well accomplished, various analyses, such as cyclic voltammetry, electrochemical impedance spectroscopy, and X-ray photoelectron spectroscopy, are considered. When the performance of this Exf-CP is compared with that of pristine carbon paper, AFBs employing this Exf-CP that are operated at 150 mA cm-2 condition demonstrate a 25.1 % improvement in energy efficiency (75.2 %) and a lower charge–discharge overpotential, while the AFBs performed at 100 mA cm-2 are stably operated for 400 cycles without significant performance loss. Based on that, this work substantiates that electrochemical exfoliation is a facile, low-cost, and scalable surface modification strategy that eliminates the conventional requirements for carbon nanotube incorporation or high-temperature treatment, offering substantial performance enhancement for iron-based AFB system.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"23 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Decoding pH-dependent electrocatalysis through electric field models and microkinetic volcanoes 通过电场模型和微动力火山解码ph依赖性电催化

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta06105a

Songbo Ye, Yuhang Wang, Heng Liu, Di Zhang, Xue Jia, Linda Zhang, Yizhou Zhang, Akichika Kumatani, Hitoshi Shiku, Hao Li

{"title":"Decoding pH-dependent electrocatalysis through electric field models and microkinetic volcanoes","authors":"Songbo Ye, Yuhang Wang, Heng Liu, Di Zhang, Xue Jia, Linda Zhang, Yizhou Zhang, Akichika Kumatani, Hitoshi Shiku, Hao Li","doi":"10.1039/d5ta06105a","DOIUrl":"https://doi.org/10.1039/d5ta06105a","url":null,"abstract":"The impact of electrolyte pH on electrocatalytic reactions has long been recognized, yet its underlying mechanisms remain a subject of active debate. This perspective explores how pH influences reaction activity and mechanisms at the computationally affordable atomic scale. Traditional interpretations attribute pH effects to changes described by the computational hydrogen electrode (CHE) model and the Nernst equation. However, recent advances have uncovered more complex interfacial interactions involving electric fields, including dipole moments (μ), polarizability (α), and the potential of zero charge (PZC). We summarize recent progress on how pH influences surface states and reaction mechanisms across various typical electrocatalytic processes, including the hydrogen evolution reaction (HER), oxygen reduction reaction (ORR), carbon dioxide reduction reaction (CO2RR), and nitrate reduction reaction (NO3RR). By integrating experimental observations with theoretical models and computational simulations, researchers are beginning to unravel the multifaceted role of pH in electrocatalysis. Furthermore, several key theoretical frameworks have been developed to date to predict reaction activity and elucidate underlying mechanisms, such as the reversible hydrogen electrode (RHE)-referenced Pourbaix diagram and the pH-dependent microkinetic volcano model. Understanding these pH-driven effects is essential for designing catalysts that operate efficiently across diverse electrochemical environments, ultimately contributing to the development of sustainable energy technologies.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"42 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Regulating high-temperature energy storage of crosslinked polyetherimides through functional crosslinking agent 通过功能交联剂调节交联聚醚酰亚胺的高温储能

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta06986f

Mengyu Xiao, Wenjie Huang, Baoquan Wan, Wenshuai Zhao, Yutao Hao, Daomin Min, Yong Chae Jung, Jun-Wei Zha

{"title":"Regulating high-temperature energy storage of crosslinked polyetherimides through functional crosslinking agent","authors":"Mengyu Xiao, Wenjie Huang, Baoquan Wan, Wenshuai Zhao, Yutao Hao, Daomin Min, Yong Chae Jung, Jun-Wei Zha","doi":"10.1039/d5ta06986f","DOIUrl":"https://doi.org/10.1039/d5ta06986f","url":null,"abstract":"With the rapid development of advanced electronic equipment, it is urgent to develop polymer dielectrics with excellent high-temperature capacitance. The sharp increase in conduction loss at high temperatures is the bottleneck that restricts the improvement of energy storage performance. Crosslinking has been proven to be an effective strategy for suppressing conduction loss. However, there is little research on how to select crosslinkers to construct the optimal crosslinking network. Here, a crosslinker with a unique spatial structure and low ionization energy is selected based on computational simulations to construct crosslinking networks in polyetherimide. The weakly conjugated structure suppresses charge transfer, and the charge trapping effect inhibits carrier transport, thus synergistically reducing conduction loss at high temperatures. Consequently, the crosslinked polyetherimide achieves a discharged energy density of 5.06 J cm–3, a charge-discharge efficiency of over 90%, and a charge-discharge cycle stability of 50,000 cycles at 150 °C. This work proposes a multi-effect synergistic strategy, providing new insights for the design of high-performance crosslinked polymer materials for high-temperature applications.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"4624 2 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Single-atom alloys for photocatalytic applications: material innovation and light-driven reactivity 光催化应用的单原子合金：材料创新和光驱动反应性

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta04700e

Yong-Jin Lin, Fu-Yun Wu, Yue Wu, Fang-Xing Xiao

{"title":"Single-atom alloys for photocatalytic applications: material innovation and light-driven reactivity","authors":"Yong-Jin Lin, Fu-Yun Wu, Yue Wu, Fang-Xing Xiao","doi":"10.1039/d5ta04700e","DOIUrl":"https://doi.org/10.1039/d5ta04700e","url":null,"abstract":"The establishment and enhancement of efficient and stable photocatalytic systems are central tasks for advancing sustainable energy conversion and utilization. Recently, single-atom alloy catalysts (SAAs), in which one metal is atomically dispersed throughout the catalyst via alloy bonding, have begun to gain prominence. SAAs inherit the traditional advantages of alloy catalysts and the tunable properties achievable with single atom catalysts (SACs), and are expected to emerge as promising candidates in photocatalysis. In the current review, recent progress and challenges in SAAs for photocatalytic energy conversion systems are presented. First, we summarize the strategies employed for the synthesis and characterization of SAAs. Second, the widespread adoption of SAAs in diverse photocatalytic reactions is also comprehensively presented. Then, we outline how the alloys and isolated metal atom sites interact and synergistically facilitate the construction of efficient artificial photocatalytic systems. By highlighting these advances and discussing some future challenges, we aim to provide insights into forthcoming research directions of SAAs for solar energy conversion.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"52 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Unlocking the mechanism of anharmonic lattice dynamics in ionic conductor β-Li3VO4 离子导体β-Li3VO4非调和晶格动力学机制的揭示

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta01664a

Qiwei Hu, Hong Pan, Boyu Lin, Yuxin Zhao, Yuhang Lang, Xianpei Ren, Jing Yang, Chao Li, Jiayu Wan, Yuquan Yuan

{"title":"Unlocking the mechanism of anharmonic lattice dynamics in ionic conductor β-Li3VO4","authors":"Qiwei Hu, Hong Pan, Boyu Lin, Yuxin Zhao, Yuhang Lang, Xianpei Ren, Jing Yang, Chao Li, Jiayu Wan, Yuquan Yuan","doi":"10.1039/d5ta01664a","DOIUrl":"https://doi.org/10.1039/d5ta01664a","url":null,"abstract":"Anharmonic lattice dynamics (ALD) has proven to be a promising approach for the development of advanced superionic conductors for solid-state batteries. However, the relationship between ALD and ion diffusion remains poorly understood due to the coupling between lattice dynamics and the potential energy surface. In this study, we demonstrate that in β-Li3VO4, the enhanced ALD of OI atoms is coupled with the motion of LiII ions, resulting in increased activation and diffusion of LiII ions as temperature increases. Rietveld refinement analysis of the high-temperature X-ray diffraction (HTXRD) patterns indicates that ALD primarily involves LiII and OI atoms, with thermal vibration factors increasing significantly with temperature. In situ Raman spectroscopy combined with first-principles calculations reveals that three phonon modes associated with LiII–OI vibrations exhibit strong anharmonicity. Among these, one mode is linked to the activation of Li ions, while the other two are associated with the diffusion process. Based on these observations, we propose an atomic-scale mechanism to describe the ALD process. Our findings provide deeper insights into how ALD enhances ion diffusion and support the idea of precisely controlling ion mobility in superionic conductors through phonon engineering.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"85 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Ytterbium-incorporated porphyrin nanostructure-modified carbon electrodes for ultra-sensitive detection of lead ions in water environments 含镱卟啉纳米结构修饰碳电极用于水环境中铅离子的超灵敏检测

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta06358b

Zeyu Liu, Yao Liu, Qiang Xue, Lin He, Hao Liu, Jianwei Zhao

{"title":"Ytterbium-incorporated porphyrin nanostructure-modified carbon electrodes for ultra-sensitive detection of lead ions in water environments","authors":"Zeyu Liu, Yao Liu, Qiang Xue, Lin He, Hao Liu, Jianwei Zhao","doi":"10.1039/d5ta06358b","DOIUrl":"https://doi.org/10.1039/d5ta06358b","url":null,"abstract":"Simple modification of electrodes for sensitive Pb(II) detection is the key to the realization of electrochemical sensors for monitoring water pollution, but it remains a challenge. In this study, a novel ytterbium (Yb)-functionalized meso-tetra(4-carboxyphenyl)porphyrin (Yb-TCPP) composite was synthesized via a hydrothermal method to address this challenge. The excellent structure and properties of Yb-TCPP significantly enhance the sensitivity (783.58 μA μM−1 cm−2) of electrochemical Pb(II) detection by the electrode. The Yb-TCPP-modified electrode exhibits a strong linear relationship in the Pb(II) concentration ranges of 5–300 μg L−1 and 300–1000 μg L−1, with a detection limit as low as 0.16 μg L−1. The recovery rate obtained from repeated testing of actual water samples ranged from 98.93% to 100.63%. Density functional theory (DFT) was used to predict the structure of Yb-TCPP, which confirms that a large number of tetrapyrrolic cavities with strong adsorption to Pb are retained in the structure. The decrease in the structural energy gap further proves that Yb improves the conductivity of the material. The electron transfer in the system is revealed, and Yb-TCPP shows strong catalytic effects in both the reduction-enrichment and oxidation-stripping stages of Pb. This study discards the previous redundant modification process of multi-material composites and provides a new idea for the modification of a single-material electrode, which advances practical applications in environmental heavy metal monitoring.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"61 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Development of a spin selective electrocatalyst platform and its use to study spin-polarization and d-orbital occupancy effects in oxygen evolution reaction electrocatalysts. 自旋选择性电催化剂平台的建立及其在析氧反应电催化剂中自旋极化和d轨道占用效应研究中的应用。

IF 11.9 2区材料科学

Journal of Materials Chemistry A Pub Date : 2025-09-26 DOI: 10.1039/d5ta04850h

Meera Joy, Brian Bloom, Keerthana Govindaraj, Joseph A. Albro, Aravind Vadakkayil, David H Waldeck

{"title":"Development of a spin selective electrocatalyst platform and its use to study spin-polarization and d-orbital occupancy effects in oxygen evolution reaction electrocatalysts.","authors":"Meera Joy, Brian Bloom, Keerthana Govindaraj, Joseph A. Albro, Aravind Vadakkayil, David H Waldeck","doi":"10.1039/d5ta04850h","DOIUrl":"https://doi.org/10.1039/d5ta04850h","url":null,"abstract":"We describe a polymer-catalyst platform that uses spin-polarized electron currents, recently reported to improve the efficiency of the oxygen evolution reaction (OER), in combination with transition metal-oxide catalysts to enhance the efficiency of their OER electrocatalysis. We describe the creation of an electrode coated with a chiral conjugated polymer film which acts as a spin transport layer and ensures that anodic reaction proceeds with a spin bias. Systematic studies on a series of transition metal oxide catalysts demonstrate that spin selectivity improves catalytic efficiency irrespective of the catalysts position on a ‘volcano’ plot and that the benefit of electron spin filtering correlates with the number of unpaired d-orbital electrons in the catalyst. These studies identify spin-control as a design principle for engineering efficient OER catalysts. More broadly, these studies demonstrate a promising electrode scaffold for investigating the role of electron spin in chemical reactions.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"92 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145153699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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