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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202100537
|2 doi
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|a pubmed24n1116.xml
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|a (DE-627)NLM334876257
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|a (NLM)34951727
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|a DE-627
|b ger
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|a eng
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|a Zhou, Yao
|e verfasserin
|4 aut
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|a Electronegativity-Induced Charge Balancing to Boost Stability and Activity of Amorphous Electrocatalysts
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|c 2022
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 19.05.2022
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|a published: Print-Electronic
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|a ErratumIn: Adv Mater. 2022 May;34(20):e2202598. - PMID 35589675
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Amorphization is an efficient strategy to activate intrinsically inert catalysts. However, the low crystallinity of amorphous catalysts often causes high solubility and poor electrochemical stability in aqueous solution. Here, a different mechanism is developed to simultaneously stabilize and activate the water-soluble amorphous MoSx Oy via a charge-balancing strategy, which is induced by different electronegativity between the co-dopants Rh (2.28) and Sn (1.96). The electron-rich Sn prefers to stabilize the unstable apical O sites in MoSx Oy through charge transfer, which can prevent the H from attacking. Meanwhile, the Rh, as the charge regulator, shifts the main active sites on the basal plane from inert Sn to active apical Rh sites. As a result, the amorphous RhSn-MoSx Oy exhibits drastic enhancement in electrochemical stability (η10 increases only by 12 mV) after 1000 cycles and a distinct activity (η10 : 26 mV and Tafel: 30.8 mV dec-1 ) for the hydrogen evolution reaction in acidic solution. This work paves a route for turning impracticably water-soluble catalysts into treasure and inspires new ideas to design high-performance amorphous electrocatalysts
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|a Journal Article
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|a amorphous catalysts
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|a aqueous stability
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|a charge transfer
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|a electronegativity
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|a hydrogen evolution reaction
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|a Hao, Wei
|e verfasserin
|4 aut
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|a Zhao, Xiaoxu
|e verfasserin
|4 aut
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1 |
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|a Zhou, Jiadong
|e verfasserin
|4 aut
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|a Yu, Huimei
|e verfasserin
|4 aut
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|a Lin, Bo
|e verfasserin
|4 aut
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|a Liu, Zheng
|e verfasserin
|4 aut
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|a Pennycook, Stephen J
|e verfasserin
|4 aut
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| 700 |
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|a Li, Shuzhou
|e verfasserin
|4 aut
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| 700 |
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|a Fan, Hong Jin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 11 vom: 24. März, Seite e2100537
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:34
|g year:2022
|g number:11
|g day:24
|g month:03
|g pages:e2100537
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|u http://dx.doi.org/10.1002/adma.202100537
|3 Volltext
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