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Results in Journal Current Opinion in Electrochemistry: 842

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Zahra I. Rana, Ami R. Shah, Alice V. Llewellyn, Katrina Mazloomian, Patricia McAlernon, , , Paul.R. Shearing,
Published: 14 October 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100860

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, Tamara Miličić, Luka A. Živković, Hoon Seng Chan, , Menka Petkovska
Published: 8 October 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100851

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, S.M. Rezaei Niya, R. Ojha
Published: 25 September 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100850

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Tianlai Xia, Ziyun Wang,
Published: 17 September 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100846

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V. Palomares, N. Nieto,
Published: 15 September 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100840

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Ana-Maria Chiorcea-Paquim,
Published: 15 September 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100837

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Published: 14 September 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100843

Abstract:
Automotive proton exchange membrane fuel cell (PEMFC) stacks need to meet manufacturer specified rated beginning-of-life (BOL) performance before being assembled into vehicles and shipped off to customers. The process of ‘breaking-in’ of a freshly assembled stack is often referred to as ‘conditioning’. It has become an intensely researched area especially in automotive companies where imminent commercialization of fuel cell electric vehicles (FCEVs) demands a short, energy efficient, cost efficient and practical conditioning protocol. Significant advances in reducing the conditioning time from 1–2 days to as low as 4 hours or less, in some cases without the use of additional inert gases such as nitrogen, and with minimal use of hydrogen and specialized test stations are discussed.
, , Enrico Negro, , Pawel J. Kulesza, , Giuseppe Pace
Published: 14 September 2021
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100839

Abstract:
This report describes a general method to correlate the features determining the performance of an electrocatalyst (EC), including the accessibility of O2 to the active sites and the kinetic activation barrier, with the outcome of conventional electrochemical experiments. The method has been implemented for oxygen reduction reaction (ORR) ECs by cyclic voltammetry with the thin-film rotating ring-disk electrode (CV-TF-RRDE) setup. The method: (i) does not rely on the simplifications associated with the Butler-Volmer (BV) kinetic description of electrochemical processes; and (ii) does not make assumptions on the specific features of the EC, allowing to compare accurately the kinetic performance of ORR ECs with a completely different chemistry. Finally, with respect to other widespread figures of merit (e.g., the half-wave potential E1/2), the figure of merit here proposed i.e., E(jPt(5%)), allows for much more accurate comparisons of the kinetic performance of ECs.
Julia Linke, Thomas Rohrbach, , ,
Published: 11 September 2021
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100845

Abstract:
The development of catalysts with an enhanced activity for the oxygen evolution reaction (OER) compared to the traditionally used metal oxide catalysts is crucial for further commercialization of electrolyzers. Due to their high surface area and adjustable pore structure, metal organic framework (MOF) based catalysts represent a promising alternative. During OER in alkaline media, the MOF structure can transform dramatically and act as a precursor through decomposition of the organic backbone and/or metal oxide, hydroxide and oxyhydroxide formation, respectively. Hence, operando characterizations of MOF catalysts during OER are crucial to understand the material’s progressive changes and extract the OER catalytic mechanism. This article discusses existing operando X-ray absorption spectroscopy (XAS) studies of MOF(-derived) catalysts during OER and extracts important parameters for future research regarding operando XAS characterizations of MOFs in alkaline electrolysis.
, Juan J. Velasco-Vélez, , Axel Knop-Gericke, Robert Schlögl, Detre Teschner,
Published: 11 September 2021
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100842

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Cyrielle Dolle, Neha Neha,
Published: 11 September 2021
Current Opinion in Electrochemistry, Volume 31; https://doi.org/10.1016/j.coelec.2021.100841

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Changkun Zhang,
Published: 20 August 2021
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100836

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Xiangru Song, Chunghyok Jo, Lujie Han,
Published: 14 August 2021
Current Opinion in Electrochemistry, Volume 31; https://doi.org/10.1016/j.coelec.2021.100833

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, Jing Xu, , Sheng Han, Xin Jiang
Published: 14 August 2021
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100835

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Published: 14 August 2021
Current Opinion in Electrochemistry, Volume 29; https://doi.org/10.1016/j.coelec.2021.100832

Abstract:
Cost and stability remain the greatest technical barriers to sustainably commercialize low-temperature fuel cells and electrolyzers. For tackling this problem, numerous advanced electrocatalysts have been proposed and tested in aqueous model systems. There are, however, increasing and evident concerns regarding the value of stability data coming from such studies. Hence, we anticipate that finding new approaches to assess degradation will be a major undertaking in electrocatalysis research in the next years. Specifically, existing differences between fundamental and actual systems have to be addressed first: (a) electrode architecture; (b) electrolyte; (c) reactant and product transport; and (d) operating conditions. In this perspective, we discuss their influence on the stability of electrocatalysts using the challenging oxygen reduction and oxygen evolution reactions as illustrative cases.
Lydia Merakeb,
Published: 14 August 2021
Current Opinion in Electrochemistry, Volume 29; https://doi.org/10.1016/j.coelec.2021.100834

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Poyye Dsouza Priya Swetha, Jospeh Sonia, Kannan Sapna,
Published: 12 August 2021
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100829

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Weihao Zeng, Fanjie Xia, Weixi Tian, Fei Cao, Junxin Chen, Jinsong Wu, ,
Published: 11 August 2021
Current Opinion in Electrochemistry, Volume 31; https://doi.org/10.1016/j.coelec.2021.100831

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, John B. Goodenough,
Published: 10 August 2021
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100828

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Enze Zhou, Yassir Lekbach, ,
Current Opinion in Electrochemistry, Volume 31; https://doi.org/10.1016/j.coelec.2021.100830

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Alexandra Michail, Begoña Silván,
Current Opinion in Electrochemistry, Volume 31; https://doi.org/10.1016/j.coelec.2021.100817

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, Lin Ma, Glenn Pastel, Kang Xu
Current Opinion in Electrochemistry, Volume 29; https://doi.org/10.1016/j.coelec.2021.100819

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Oscar M. Rodríguez-Narváez, Alain R. Picos, Nelson Bravo-Yumi, Martín Pacheco-Alvarez, Carlos A. Martínez-Huitle,
Current Opinion in Electrochemistry, Volume 29; https://doi.org/10.1016/j.coelec.2021.100806

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Gregor Zwaschka, François Lapointe, ,
Current Opinion in Electrochemistry, Volume 29; https://doi.org/10.1016/j.coelec.2021.100813

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Luke Kuo,
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100807

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Aaditya S. Deshpande, Wayne Muraoka,
Current Opinion in Electrochemistry, Volume 29; https://doi.org/10.1016/j.coelec.2021.100809

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Daqin Guan, Kaifeng Zhang, ,
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100805

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, Mauro Fianchini, Chiara Biz, , Roberto Gómez
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100798

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Tianze Wu,
Current Opinion in Electrochemistry; https://doi.org/10.1016/j.coelec.2021.100804

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, Jian Yin, , Ke Lu, Fan Feng, Xueqing Qiu
Current Opinion in Electrochemistry, Volume 30; https://doi.org/10.1016/j.coelec.2021.100802

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