Three‐Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles: Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis,Angewandte Chemie International Edition

当前位置： X-MOL 学术 › Angew. Chem. Int. Ed. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Three‐Dimensional Branched and Faceted Gold–Ruthenium Nanoparticles: Using Nanostructure to Improve Stability in Oxygen Evolution Electrocatalysis
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-07-15 , DOI: 10.1002/anie.201806300
Lucy Gloag ₁ , Tania M. Benedetti ₁ , Soshan Cheong ₂ , Yibing Li ₁ , Xuan-Hao Chan ₃ , Lise-Marie Lacroix ₄ , Shery L. Y. Chang ₅ , Raul Arenal ₆ , Ileana Florea ₇ , Hector Barron ₈ , Amanda S. Barnard ₈ , Anna M. Henning ₃ , Chuan Zhao ₁ , Wolfgang Schuhmann ₉ , J. Justin Gooding _{1,

10,

11} , Richard D. Tilley _{1,

2,

11}

Affiliation

School of Chemistry; University of New South Wales; Sydney NSW 2052 Australia
Electron Microscope Unit; Mark Wainwright Analytical Centre; University of New South Wales; Sydney NSW 2052 Australia
School of Chemical and Physical Sciences; MacDiarmid Institute for Advanced Materials and Nanotechnology and Boutiq Science Ltd.; Victoria University of Wellington; Wellington 6012 New Zealand
LPCNO; Université de Toulouse; CNRS; INSA; UPS; 135 Avenue de Rangueil 31077 Toulouse France
LeRoy Eyring Center for Solid Science; Arizona State University; Tempe AZ USA
Laboratorio de Microscopias Avanzadas; Instituto de Nanociencia de Aragon and ARAID Fundation; Calle Mariano de Luna; University of Zaragoza; 50018 Zaragoza Spain
LPICM; Ecole Polytechnique; Université Paris Saclay CNRS; 91128 Palaiseau France
CSIRO Molecular & Materials Modelling, Data61; Door 24 Village St Docklands VIC 2008 Australia
Analytical Chemistry-Center for Electrochemical Sciences; Ruhr-University Bochum; 44780 Bochum Germany
Australian Centre for NanoMedicine; The University of New South Wales; Sydney NSW 2052 Australia
ARC Centre of Excellence in Convergent Bio-Nano Science and Technology; The University of New South Wales; Sydney NSW 2052 Australia

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.

中文翻译：

三维支链多面金钌纳米颗粒：使用纳米结构改善氧释放电催化的稳定性

用高活性Ru纳米粒子进行电催化实现稳定性是氧释放反应的主要挑战。由于Ru催化剂对于具有低折射率小平面的整体表面显示出提高的稳定性，因此有机会将这些稳定的小平面掺入Ru纳米粒子中。现在，提出了一种新的溶液合成方法，其中六方密堆积的结构化Ru在Au上生长以形成具有3D分支的纳米粒子。在这些3D分支上暴露低指数的小面可产生稳定的反应动力学，从而实现高活性和Ru纳米粒子氧放出反应催化剂所观察到的最高稳定性。这些设计原则提供了一种合成策略，以实现稳定和活性的电催化剂。

更新日期：2018-07-15

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11