Current Opinion in Electrochemistry最新文献_第10页

Recent advancement in electrolyte optimization for rechargeable aqueous zinc–sulfur (Zn–S) batteries 可充电锌硫 (Zn-S) 水电池电解质优化的最新进展

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-14 DOI: 10.1016/j.coelec.2024.101555

Liting Chen , Xiaoqing Liu , Yongchao Tang , Zhipeng Wen , Cheng Chao Li

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Do multiheme cytochromes containing close-packed heme groups have a band structure formed from the heme π and π∗ orbitals? 含有紧密堆积血红素基团的多血红素细胞色素是否具有由血红素 π 和 π* 轨道形成的带状结构？

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-12 DOI: 10.1016/j.coelec.2024.101556

Jessica H. van Wonderen , Alejandro Morales-Florez , Thomas A. Clarke , Andrew J. Gates , Jochen Blumberger , Zdenek Futera , David J. Richardson , Julea N. Butt , Geoffrey R. Moore

{"title":"Do multiheme cytochromes containing close-packed heme groups have a band structure formed from the heme π and π∗ orbitals?","authors":"Jessica H. van Wonderen , Alejandro Morales-Florez , Thomas A. Clarke , Andrew J. Gates , Jochen Blumberger , Zdenek Futera , David J. Richardson , Julea N. Butt , Geoffrey R. Moore","doi":"10.1016/j.coelec.2024.101556","DOIUrl":"10.1016/j.coelec.2024.101556","url":null,"abstract":"<div><p>Multiheme cytochromes (MHCs) are bacterial electron-transfer proteins. We show from optical spectra and calculations that some of these cytochromes probably contain occupied and unoccupied bands formed from heme π and π∗ orbitals that span the protein. In the fully oxidised proteins, the unoccupied π∗-bands are energetically above the redox-active frontier orbitals, which according to NMR data and calculations, are formed of Fe<sup>3+</sup> t<sub>2g</sub> and porphyrin π-orbitals. These orbitals on different hemes are electronically coupled according to EPR data and calculations, but only weakly so. We suggest a role for the heme bands in the electronic conductivity of single MHCs in bioelectronic junctions that is distinct from the role of the redox-active Fe<sup>3+</sup> t<sub>2g</sub> and porphyrin π-orbitals in physiological electron transfer.</p></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"47 ","pages":"Article 101556"},"PeriodicalIF":7.9,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2451910324001170/pdfft?md5=daef8c57ac2ad3b11736777dabf4986c&pid=1-s2.0-S2451910324001170-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141401142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Recent progress on graphene nanoribbon-based electrocatalysts for oxygen reduction reaction 基于石墨烯纳米带的氧还原反应电催化剂的最新研究进展

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-10 DOI: 10.1016/j.coelec.2024.101554

Yogesh Kumar , Srinu Akula , Marciélli K.R. Souza , Gilberto Maia , Kaido Tammeveski

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Electrocatalysts for the oxidation of ethanol in proton exchange membrane fuel cells, electrolysis cells, and sensors 质子交换膜燃料电池、电解槽和传感器中的乙醇氧化电催化剂

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-10 DOI: 10.1016/j.coelec.2024.101553

Peter G. Pickup , E. Bradley Easton

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Advancements in hydrogen production using alkaline electrolysis systems: A short review on experimental and simulation studies 利用碱性电解系统制氢的进展：实验和模拟研究简评

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-08 DOI: 10.1016/j.coelec.2024.101552

Lucía Paula Campo Schneider , Maryem Dhrioua , Dirk Ullmer , Franz Egert , Hans Julian Wiggenhauser , Kamal Ghotia , Nicolas Kawerau , Davide Grilli , Fatemeh Razmjooei , Syed Asif Ansar

{"title":"Advancements in hydrogen production using alkaline electrolysis systems: A short review on experimental and simulation studies","authors":"Lucía Paula Campo Schneider , Maryem Dhrioua , Dirk Ullmer , Franz Egert , Hans Julian Wiggenhauser , Kamal Ghotia , Nicolas Kawerau , Davide Grilli , Fatemeh Razmjooei , Syed Asif Ansar","doi":"10.1016/j.coelec.2024.101552","DOIUrl":"10.1016/j.coelec.2024.101552","url":null,"abstract":"<div><p>Although alkaline water electrolysis (AWE) is a highly mature technology for hydrogen production, its potential is hindered by relatively low efficiencies at high current densities. On the other hand, to conform with “RePowerEU” directives, coupling electrolyzers with new renewable energy sources (RES) is highly demanded. However, integrating fluctuating RES poses challenges for the AWE due to increasing gas impurity as the current density decreases. Herein, we revised the most promising recent developments in materials, cell design, and system integration aimed at conquering the aforementioned challenges. It is shown that the implementation of advanced components and control strategies, e.g. electrolyte management, is vital to enhance the efficiency at high current densities and expand the load range of operation by maintaining the high gas purity.</p></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"47 ","pages":"Article 101552"},"PeriodicalIF":7.9,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2451910324001133/pdfft?md5=893956bf5f942e50e8e1ddace6b8eb75&pid=1-s2.0-S2451910324001133-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141396896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Editor overview: Surface electrochemistry (2024) advanced research methods of surface electrochemistry 编辑概述：表面电化学 (2024) 表面电化学高级研究方法

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-08 DOI: 10.1016/j.coelec.2024.101550

Yan-Xia Chen, Dongping Zhan

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Long range electron transfer and proton transfer in biology: What do we know and how does it work? 生物学中的远距离电子转移和质子转移：我们知道什么，它是如何工作的？

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-06 DOI: 10.1016/j.coelec.2024.101551

Nadav Amdursky

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Building tailor-made bioenergetic proteins and circuits from de novo redox proteins 从新氧化还原蛋白中构建量身定制的生物能蛋白和电路

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-05 DOI: 10.1016/j.coelec.2024.101541

Benjamin J. Hardy , Ethan L. Bungay , Cam Mellor , Paul Curnow , J.L. Ross Anderson

{"title":"Building tailor-made bioenergetic proteins and circuits from de novo redox proteins","authors":"Benjamin J. Hardy , Ethan L. Bungay , Cam Mellor , Paul Curnow , J.L. Ross Anderson","doi":"10.1016/j.coelec.2024.101541","DOIUrl":"10.1016/j.coelec.2024.101541","url":null,"abstract":"<div><p>Natural electron-conducting circuits play essential roles in respiration and photosynthesis and are therefore of fundamental importance to all life on earth. These circuits are composed of redox-active cofactors housed within proteins, or multi-subunit protein complexes, facilitating the conduction of electrons in support of transmembrane proton pumping, redox catalysis and the extracellular delivery of electrons to terminal electron acceptors. Though the natural electron-conducting circuitry can be complex, it is possible to recapitulate selected, desirable functions within minimalist <em>de novo</em>-designed proteins. Here we highlight recent advances in the <em>de novo</em> design of redox proteins and enzymes that illustrate the progress and potential of this approach, providing insight into the workings and engineering of their natural counterparts, while creating a readily adaptable and robust set of components for future bioelectronic engineering.</p></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"46 ","pages":"Article 101541"},"PeriodicalIF":7.9,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2451910324001029/pdfft?md5=9e6cf478bdd25e41f23004518122d378&pid=1-s2.0-S2451910324001029-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141396568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards continuous potentiometric enzymatic biosensors 开发连续电位计酶生物传感器

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-04 DOI: 10.1016/j.coelec.2024.101549

Xinxin Xiao , Jens Ulstrup

{"title":"Towards continuous potentiometric enzymatic biosensors","authors":"Xinxin Xiao , Jens Ulstrup","doi":"10.1016/j.coelec.2024.101549","DOIUrl":"10.1016/j.coelec.2024.101549","url":null,"abstract":"<div><p>Self-management of health and disease control using implantable biosensors is presently evolving strongly. Implantable biosensors require high selectivity and sensitivity, robust stability, temporal resolution, and device miniaturization. Electrochemical enzymatic biosensors that utilize specifically selective enzymes to convert the concentration of biomarker metabolites into electrochemical signals hold great promise to meet these criteria. As for electrochemical enzyme biosensors in continuous glucose monitoring, which have enjoyed great commercial success, amperometric biosensors have so far dominated enzymatic biosensor research and development. Potentiometric enzymatic biosensor research is, however, emerging with increasing strength, in particular due to greater promise for miniaturization. This minireview focuses on how to empower potentiometric enzymatic biosensors with high temporal resolution for continuous <em>in situ</em> monitoring of metabolites using the innovative non-equilibrium approach.</p></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"46 ","pages":"Article 101549"},"PeriodicalIF":7.9,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2451910324001108/pdfft?md5=25ba9ce1e9a0c7b84e6af1eccd2f9dc2&pid=1-s2.0-S2451910324001108-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141278379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Infrared nanoimaging and nanospectroscopy of electrochemical energy storage materials and interfaces 电化学储能材料和界面的红外纳米成像和纳米光谱学

IF 7.9 2区化学

Current Opinion in Electrochemistry Pub Date : 2024-06-03 DOI: 10.1016/j.coelec.2024.101548

Jonathan M. Larson , Andrew Dopilka , Robert Kostecki

{"title":"Infrared nanoimaging and nanospectroscopy of electrochemical energy storage materials and interfaces","authors":"Jonathan M. Larson , Andrew Dopilka , Robert Kostecki","doi":"10.1016/j.coelec.2024.101548","DOIUrl":"10.1016/j.coelec.2024.101548","url":null,"abstract":"<div><p>Electrochemical interfaces are central to the function and performance of energy storage devices. Thus, the development of new methods to characterize these interfaces, in conjunction with electrochemical performance, is essential for bridging the existing knowledge gaps and accelerating the development of energy storage technologies. Of particular need is the ability to characterize surfaces or interfaces in a non-destructive way with adequate resolution to discern individual structural and chemical building blocks. To this end, sub-diffraction-limit low-energy infrared optical probes that exploit near-field interactions within atomic force microscopy platforms, such as pseudoheterodyne nanoimaging, photothermal nanoimaging and nanospectroscopy, and nanoscale Fourier transform infrared spectroscopy, are all powerful emerging techniques. These are capable of non-destructive surface probing and imaging at nanometer resolution. This review outlines recent efforts to characterize <em>ex situ</em><em>,</em><em>in situ</em><em>,</em>and<em>operando</em> electrode materials and electrochemical interfaces in rechargeable batteries with these advanced infrared near-field probes.</p></div>","PeriodicalId":11028,"journal":{"name":"Current Opinion in Electrochemistry","volume":"47 ","pages":"Article 101548"},"PeriodicalIF":7.9,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2451910324001091/pdfft?md5=e5feb386d7f632adb48aa69fdf9677f0&pid=1-s2.0-S2451910324001091-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141281568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0