Platinum multicubes prepared by ni(2+) -mediated shape evolution exhibit high electrocatalytic activity for oxygen reduction

Angewandte Chemie
Liang MaXiong Wen David Lou

Abstract

Pt(100) facets are generally considered less active for the oxygen reduction reaction (ORR). Reported herein is a unique Pt-branched structure, a multicube, whose surface is mostly enclosed by {100} facets but contains high-index facets at the small junction area between the adjacent cubic components. The synthesis is accomplished by a Ni(2+) -mediated facet evolution from high-index {311} to {100} facets on the frameworks of multipods. Despite the high {100} facet coverage, the Pt multicubes exhibit impressive ORR activity in terms of half-wave potential and current density nearly to the level of the most active Pt-based catalysts, while the durability of catalysts is well retained. The facet evolution creates a set of samples with tunable ratios of high-index to low-index facets. The results reveal that the excellent ORR performance of Pt multicubes is a combined result of active sites by high-index facets and low resistance by flat surface. It is anticipated that this work will offer a new approach to facet-controlled synthesis and ORR catalysts design.

References

Dec 27, 2005·The Journal of Physical Chemistry. B·Vladimir KomanickyHoydoo You
Jun 23, 2006·Angewandte Chemie·Andrea TaoPeidong Yang
Jul 21, 2006·The Journal of Physical Chemistry. B·Hyunjoon SongPeidong Yang
Sep 8, 2006·Nature·Rajesh Bashyam, Piotr Zelenay
Jan 16, 2007·Science·Vojislav R StamenkovicNenad M Marković
Feb 21, 2007·Nature Materials·Vojislav R StamenkovicNenad M Markovic
Mar 1, 2008·Physical Chemistry Chemical Physics : PCCP·José Solla-GullónJuan M Feliu
Jun 20, 2008·Physical Chemistry Chemical Physics : PCCP·J Solla-GullónA Aldaz
Oct 19, 2010·Nature Materials·J SnyderJ Erlebacher
Jul 5, 2011·Nano Letters·Michelle L PersonickChad A Mirkin
Feb 7, 2013·Nature Communications·Yue YuJim Yang Lee
Jun 19, 2013·Angewandte Chemie·Shaojun GuoShouheng Sun

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Citations

Apr 14, 2016·Annual Review of Chemical and Biomolecular Engineering·Dongguo LiVojislav R Stamenkovic
Feb 22, 2017·Chemistry : a European Journal·Ping ZhongChuanbo Gao
Mar 10, 2017·Science Advances·Kezhu JiangXiaoqing Huang
Jul 7, 2015·Nanoscale·Brian T SneedChia-Kuang Tsung
Jul 29, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Weiyue ZhaoXun Wang
Aug 8, 2018·Chemistry, an Asian Journal·Chunjie LiHongjing Wang
Aug 5, 2021·Physical Chemistry Chemical Physics : PCCP·Wu-Yang LinYu-Hua Wen
Jun 2, 2018·ACS Applied Materials & Interfaces·Jiajun WangChang-Jun Liu
Jan 8, 2021·Accounts of Chemical Research·Lei HuangBao Yu Xia
Sep 30, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Jun WatanabeShintaro Morisada

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