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240116s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202311766
|2 doi
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|a pubmed24n1395.xml
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|a (DE-627)NLM367178400
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|a (NLM)38227289
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Guo, Peng
|e verfasserin
|4 aut
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|a Heterojunction-Induced Rapid Transformation of Ni3+/Ni2+ Sites which Mediates Urea Oxidation for Energy-Efficient Hydrogen Production
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|c 2024
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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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|2 rdacarrier
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|a Date Revised 02.05.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Water electrolysis is an environmentally-friendly strategy for hydrogen production but suffers from significant energy consumption. Substituting urea oxidation reaction (UOR) with lower theoretical voltage for water oxidation reaction adopting nickel-based electrocatalysts engenders reduced energy consumption for hydrogen production. The main obstacle remains strong interaction between accumulated Ni3+ and *COO in the conventional Ni3+-catalyzing pathway. Herein, a novel Ni3+/Ni2+ mediated pathway for UOR via constructing a heterojunction of nickel metaphosphate and nickel telluride (Ni2P4O12/NiTe), which efficiently lowers the energy barrier of UOR and avoids the accumulation of Ni3+ and excessive adsorption of *COO on the electrocatalysts, is developed. As a result, Ni2P4O12/NiTe demonstrates an exceptionally low potential of 1.313 V to achieve a current density of 10 mA cm-2 toward efficient urea oxidation reaction while simultaneously showcases an overpotential of merely 24 mV at 10 mA cm-2 for hydrogen evolution reaction. Constructing urea electrolysis electrolyzer using Ni2P4O12/NiTe at both sides attains 100 mA cm-2 at a low cell voltage of 1.475 V along with excellent stability over 500 h accompanied with nearly 100% Faradic efficiency
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|a Journal Article
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|a Ni2P4O12/NiTe
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|a Ni3+ sites
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|a nickel‐based electrocatalysts
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|a urea oxidation coupled hydrogen production
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|a water electrolysis
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|a Cao, Shoufu
|e verfasserin
|4 aut
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|a Huang, Wenjing
|e verfasserin
|4 aut
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| 700 |
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|a Lu, Xiaoqing
|e verfasserin
|4 aut
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|a Chen, Weizhe
|e verfasserin
|4 aut
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|a Zhang, Youzi
|e verfasserin
|4 aut
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|a Wang, Yijin
|e verfasserin
|4 aut
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| 700 |
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|a Xin, Xu
|e verfasserin
|4 aut
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| 700 |
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|a Zou, Ruiqing
|e verfasserin
|4 aut
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|a Liu, Sibi
|e verfasserin
|4 aut
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| 700 |
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|a Li, Xuanhua
|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 36(2024), 18 vom: 01. Mai, Seite e2311766
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:36
|g year:2024
|g number:18
|g day:01
|g month:05
|g pages:e2311766
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|u http://dx.doi.org/10.1002/adma.202311766
|3 Volltext
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