Three-Dimensional Branched and Faceted Gold-Ruthenium Nanoparticles: Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis

被引：96

作者：

Gloag, Lucy ^{[1
]}

Benedetti, Tania M. ^{[1
]}

Cheong, Soshan ^{[2
]}

Li, Yibing ^{[1
]}

Chan, Xuan-Hao ^{[3
,4
]}

Lacroix, Lise-Marie ^{[5
]}

Chang, Shery L. Y. ^{[6
]}

Arenal, Raul ^{[7
,8
]}

Florea, Ileana ^{[9
]}

Barron, Hector ^{[10
]}

Barnard, Amanda S. ^{[10
]}

Henning, Anna M. ^{[3
,4
]}

Zhao, Chuan ^{[1
]}

Schuhmann, Wolfgang ^{[11
]}

Gooding, J. Justin ^{[1
,12
,13
]}

Tilley, Richard D. ^{[1
,2
,13
]}

机构：

[1] Univ New South Wales, Sch Chem, Sydney, NSW 2052, Australia

[2] Univ New South Wales, Electron Microscope Unit, Mark Wainwright Analyt Ctr, Sydney, NSW 2052, Australia

[3] Victoria Univ Wellington, Sch Chem & Phys Sci, MacDiarmid Inst Adv Mat & Nanotechnol, Wellington 6012, New Zealand

[4] Victoria Univ Wellington, Boutiq Sci Ltd, Wellington 6012, New Zealand

[5] Univ Toulouse, LPCNO, CNRS, INSA,UPS, 135 Ave Rangueil, F-31077 Toulouse, France

[6] Arizona State Univ, LeRoy Eyring Ctr Solid Sci, Tempe, AZ USA

[7] Univ Zaragoza, Lab Microscopias Avanzadas, Inst Nanociencia Aragon, Calle Mariano de Luna, Zaragoza 50018, Spain

[8] Univ Zaragoza, ARAID Fundat, Calle Mariano de Luna, Zaragoza 50018, Spain

[9] Univ Paris Saclay, CNRS, Ecole Polytech, LPICM, F-91128 Palaiseau, France

[10] CSIRO Mol & Mat Modelling, Data61 Door 24 Village St, Docklands, Vic 2008, Australia

[11] Ruhr Univ Bochum, Analyt Chem Ctr Electrochem Sci, D-44780 Bochum, Germany

[12] Univ New South Wales, Australian Ctr NanoMed, Sydney, NSW 2052, Australia

[13] Univ New South Wales, ARC Ctr Excellence Convergent Bionano Sci & Techn, Sydney, NSW 2052, Australia

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 32期

基金：

欧盟地平线“2020”;

关键词：

bimetallic nanoparticles; electrocatalysis; nanocrystals; oxygen evolution; ruthenium; PT BIMETALLIC NANODENDRITES; HCP RUTHENIUM; GROWTH; NANOCRYSTALS; SURFACE; RU; IR;

D O I：

10.1002/anie.201806300

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Achieving stability with highly active Ru nanoparticles for electrocatalysis is a major challenge for the oxygen evolution reaction. As improved stability of Ru catalysts has been shown for bulk surfaces with low-index facets, there is an opportunity to incorporate these stable facets into Ru nanoparticles. Now, a new solution synthesis is presented in which hexagonal close-packed structured Ru is grown on Au to form nanoparticles with 3D branches. Exposing low-index facets on these 3D branches creates stable reaction kinetics to achieve high activity and the highest stability observed for Ru nanoparticle oxygen evolution reaction catalysts. These design principles provide a synthetic strategy to achieve stable and active electrocatalysts.

引用

页码：10241 / 10245

页数：5

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