NIMTE OpenIR  > 2018专题
Assembling Ultrasmall Copper-Doped Ruthenium Oxide Nanocrystals into Hollow Porous Polyhedra: Highly Robust Electrocatalysts for Oxygen Evolution in Acidic Media
Su, Jianwei; Ge, Ruixiang; Jiang, Kemin; Dong, Yan; Hao, Fei; Tian, Ziqi; Chen, Guoxin; Chen, Liang
2018
Source PublicationADVANCED MATERIALS
Volume30Issue:29
AbstractHere, a facile and novel strategy for the preparation of Cu-doped RuO2 hollow porous polyhedra composed of ultrasmall nanocrystals through one-step annealing of a Ru-exchanged Cu-BTC derivative is reported. Owing to the optimized surface configuration and altered electronic structure, the prepared catalyst displays a remarkable oxygen evolution reaction (OER) performance with low overpotential of 188 mV at 10 mA cm(-2) in acidic electrolyte, an ultralow Tafel slope of 43.96 mV dec(-1), and excellent stability in durability testing for 10 000 cycles, and continuous testing of 8 h at a current density of 10 mA cm(-2). Density functional theory calculations reveal that the highly unsaturated Ru sites on the high-index facets can be oxidized gradually and reduce the energy barrier of rate-determining steps. On the other hand, the Cu dopants can alter the electronic structures so as to further improve the intrinsic OER activity.
KeywordHydrogen-evolution Efficient Electrocatalyst Nanowire Arrays Water Nanoparticles Catalyst Oxidation Strategy Surface Metals
Subject AreaEngineering ; Polymer Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17306
Collection2018专题
Recommended Citation
GB/T 7714
Su, Jianwei,Ge, Ruixiang,Jiang, Kemin,et al. Assembling Ultrasmall Copper-Doped Ruthenium Oxide Nanocrystals into Hollow Porous Polyhedra: Highly Robust Electrocatalysts for Oxygen Evolution in Acidic Media[J]. ADVANCED MATERIALS,2018,30(29).
APA Su, Jianwei.,Ge, Ruixiang.,Jiang, Kemin.,Dong, Yan.,Hao, Fei.,...&Chen, Liang.(2018).Assembling Ultrasmall Copper-Doped Ruthenium Oxide Nanocrystals into Hollow Porous Polyhedra: Highly Robust Electrocatalysts for Oxygen Evolution in Acidic Media.ADVANCED MATERIALS,30(29).
MLA Su, Jianwei,et al."Assembling Ultrasmall Copper-Doped Ruthenium Oxide Nanocrystals into Hollow Porous Polyhedra: Highly Robust Electrocatalysts for Oxygen Evolution in Acidic Media".ADVANCED MATERIALS 30.29(2018).
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