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  Revealing the Formation Mechanism and Optimizing the Synthesis Conditions of Layered Double Hydroxides for the Oxygen Evolution Reaction

Chen, Z., Wang, X., Han, Z.-K., Zhang, S., Pollastri, S., Fan, Q., et al. (2023). Revealing the Formation Mechanism and Optimizing the Synthesis Conditions of Layered Double Hydroxides for the Oxygen Evolution Reaction. Angewandte Chemie International Edition, 62(10): e202215728. doi:10.1002/anie.202215728.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000E-0D5D-D Version Permalink: https://hdl.handle.net/21.11116/0000-000E-0D6C-C
Genre: Journal Article

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Angew Chem Int Ed - 2023 - Chen - Revealing the Formation Mechanism and Optimizing the Synthesis Conditions of Layered.pdf (Publisher version), 6MB
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Angew Chem Int Ed - 2023 - Chen - Revealing the Formation Mechanism and Optimizing the Synthesis Conditions of Layered.pdf
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2023
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he Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH
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 Creators:
Chen, Zongkun1, Author
Wang, Xingkun2, Author
Han, Zhong-Kang3, Author
Zhang, Siyuan4, Author           
Pollastri, Simone5, Author
Fan, Qiqi1, Author
Qu, Zhengyao6, Author
Sarker, Debalaya3, Author
Scheu, Christina4, Author           
Huang, Minghua2, Author
Cölfen, Helmut1, Author
Affiliations:
1University of Konstanz, 78457 Konstanz, Germany, ou_persistent22              
2Elettra-Sincrotrone Trieste Basovizza, Trieste, Italy, ou_persistent22              
3NOMAD, Fritz Haber Institute, Max Planck Society, ou_3253022              
4Nanoanalytics and Interfaces, Independent Max Planck Research Groups, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2054294              
5Agency for Science, Technology and Research, Singapore, 138634 Singapore, ou_persistent22              
6School of Materials Science and Engineering, Ocean University of China, 266100 Qingdao, China, ou_persistent22              

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 Abstract: Layered double hydroxides (LDHs), whose formation is strongly related to OH− concentration, have attracted significant interest in various fields. However, the effect of the real-time change of OH− concentration on LDHs’ formation has not been fully explored due to the unsuitability of the existing synthesis methods for in situ characterization. Here, the deliberately designed combination of NH3 gas diffusion and in situ pH measurement provides a solution to the above problem. The obtained results revealed the formation mechanism and also guided us to synthesize a library of LDHs with the desired attributes in water at room temperature without using any additives. After evaluating their oxygen evolution reaction performance, we found that FeNi-LDH with a Fe/Ni ratio of 25/75 exhibits one of the best performances so far reported.

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Language(s): eng - English
 Dates: 2022-10-252023-01-012023-02-012023-03-01
 Publication Status: Issued
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/anie.202215728
 Degree: -

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Title: Angewandte Chemie International Edition
  Abbreviation : Angew. Chem., Int. Ed.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: 6 Volume / Issue: 62 (10) Sequence Number: e202215728 Start / End Page: - Identifier: ISSN: 1433-7851
CoNE: https://pure.mpg.de/cone/journals/resource/1433-7851