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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201705979
|2 doi
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|a pubmed24n0949.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Jing, Shengyu
|e verfasserin
|4 aut
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|a Carbon-Encapsulated WOx Hybrids as Efficient Catalysts for Hydrogen Evolution
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|c 2018
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|a Text
|b txt
|2 rdacontent
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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 Completed 21.08.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Developing non-noble metal catalysts as Pt substitutes, with good activity and stability, remains a great challenge for cost-effective electrochemical evolution of hydrogen. Herein, carbon-encapsulated WOx anchored on a carbon support (WOx C/C) that has remarkable Pt-like catalytic behavior for the hydrogen evolution reaction (HER) is reported. Theoretical calculations reveal that carbon encapsulation improves the conductivity, acting as an electron acceptor/donor, and also modifies the Gibbs free energy of H* values for different adsorption sites (carbon atoms over the W atom, O atom, WO bond, and hollow sites). Experimental results confirm that WOx @C/C obtained at 900 °C with 40 wt% metal loading has excellent HER activity regarding its Tafel slope and overpotential at 10 and 60 mA cm-2 , and also has outstanding stability at -50 mV for 18 h. Overall, the results and facile synthesis method offer an exciting avenue for the design of cost-effective catalysts for scalable hydrogen generation
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|a Journal Article
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|a carbon-encapsulated WOx
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|a catalysts
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|a density functional theory
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|a hydrogen evolution reaction
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|a stability
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|a Lu, Jiajia
|e verfasserin
|4 aut
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|a Yu, Guangtao
|e verfasserin
|4 aut
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|a Yin, Shibin
|e verfasserin
|4 aut
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|a Luo, Lin
|e verfasserin
|4 aut
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|a Zhang, Zengsong
|e verfasserin
|4 aut
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|a Ma, Yanfeng
|e verfasserin
|4 aut
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|a Chen, Wei
|e verfasserin
|4 aut
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|a Shen, Pei Kang
|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 30(2018), 28 vom: 15. Juli, Seite e1705979
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:30
|g year:2018
|g number:28
|g day:15
|g month:07
|g pages:e1705979
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|u http://dx.doi.org/10.1002/adma.201705979
|3 Volltext
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