DOI: 10.1016/j.scib.2020.05.005
论文题名: Ternary metal-metalloid-nonmetal alloy nanowires: a novel electrocatalyst for highly efficient ethanol oxidation electrocatalysis
作者: Lv H. ; Sun L. ; Xu D. ; Liu B.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期: 21 起始页码: 1823
结束页码: 1831
语种: 英语
中文关键词: 1D nanowire
; Electrocatalysis
; Ethanol oxidation reaction
; PdBP alloy
; Surfactant template
英文关键词: Catalyst activity
; Copper compounds
; Electrocatalysis
; Electrocatalysts
; Electronic states
; Ethanol
; Nanocatalysts
; Nanowires
; Oxidation
; Precious metals
; Reaction intermediates
; Alloy nanowires
; Design strategies
; Electrocatalytic
; Ethanol oxidation
; Ethanol oxidation reaction
; Functionalized graphene
; Nucleation and growth
; Rational design
; Palladium alloys
英文摘要: We report rational design and syntheses of ternary noble metal-metalloid-nonmetal alloy nanowires (NWs) as a novel electrocatalyst for electrochemical ethanol oxidation reaction (EOR). This novel electrocatalyst is formed in an aqueous solution via anisotropic nucleation and growth of ternary PdBP alloy NWs along assembled cylinder template of Plurolic F127 on a nitrogen-functionalized graphene support (denoted as PdBP NWs@N-G). We find that uniformly alloying B and P intrinsically modulates the electronic states of Pd catalyst and also introduces new functions into the catalyst, while NW structure supported on the N-G exposes more electrocatalytic active sites and accelerates electron/mass transfers. Such add-in synergies of PdBP NWs@N-G kinetically facilitate the removal and/or further oxidation of CO-based poisoning intermediates, thus remarkably enhancing the electrocatalytic EOR performance. They exhibit a high mass activity of 4.15 A mgPd−1 and superior cycling and chronoamperometric stability for electrocatalytic EOR, much better than previously reported monometallic Pd-based nanocatalysts. More interestingly, this design strategy can be easily extended to develop more sophisticated NWs catalysts with more compositions (for example quaternary PdCuBP NWs@N-G) that further tunes the electronic and bifuntional effects for various desired catalysis and electrocatalysis. © 2020 Science China Press Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169999
Appears in Collections: 气候变化与战略
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作者单位: Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
Recommended Citation:
Lv H.,Sun L.,Xu D.,et al. Ternary metal-metalloid-nonmetal alloy nanowires: a novel electrocatalyst for highly efficient ethanol oxidation electrocatalysis[J]. Science Bulletin,2020-01-01,65(21)