Biaxially strained PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis

doi:10.1126/science.aah6133

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Biaxially strained PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis
	Bu, LZ; Zhang, N; Guo, SJ; Zhang, X; Li, J; Yao, JL; Wu, T; Lu, G; Ma, JY; Su, D; Huang, XQ; Huang, XQ (reprint author), Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Jiangsu, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol BIC ES, Coll Engn, Beijing 100871, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Key Lab Theory & Technol Adv Batteries Mat, Coll Engn, Beijing 100871, Peoples R China.; Su, D (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
	2016
发表期刊	SCIENCE
ISSN	0036-8075
卷号	354 期号:6318 页码:1410-1414
文章类型	期刊论文
摘要	Compressive surface strains have been necessary to boost oxygen reduction reaction (ORR) activity in core/shell M/platinum (Pt) catalysts (where M can be nickel, cobalt, or iron). We report on a class of platinum-lead/platinum (PtPb/Pt) core/shell nanoplate catalysts that exhibit large biaxial strains. The stable Pt (110) facets of the nanoplates have high ORR specific and mass activities that reach 7.8 milliampere (mA) per centimeter squared and 4.3 ampere per milligram of platinum at 0.9 volts versus the reversible hydrogen electrode (RHE), respectively. Density functional theory calculations reveal that the edge-Pt and top (bottom)-Pt (110) facets undergo large tensile strains that help optimize the Pt-O bond strength. The intermetallic core and uniform four layers of Pt shell of the PtPb/Pt nanoplates appear to underlie the high endurance of these catalysts, which can undergo 50,000 voltage cycles with negligible activity decay and no apparent structure and composition changes.
DOI	10.1126/science.aah6133
收录类别	SCI
语种	英语
WOS记录号	WOS:000390261300040
引用统计	被引频次：271[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/26440
专题	中科院上海应用物理研究所2011-2018年
通讯作者	Huang, XQ (reprint author), Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Jiangsu, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol BIC ES, Coll Engn, Beijing 100871, Peoples R China.; Guo, SJ (reprint author), Peking Univ, Key Lab Theory & Technol Adv Batteries Mat, Coll Engn, Beijing 100871, Peoples R China.; Su, D (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
推荐引用方式 GB/T 7714	Bu, LZ,Zhang, N,Guo, SJ,et al. Biaxially strained PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis[J]. SCIENCE,2016,354(6318):1410-1414.
APA	Bu, LZ.,Zhang, N.,Guo, SJ.,Zhang, X.,Li, J.,...&Su, D .(2016).Biaxially strained PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis.SCIENCE,354(6318),1410-1414.
MLA	Bu, LZ,et al."Biaxially strained PtPb/Pt core/shell nanoplate boosts oxygen reduction catalysis".SCIENCE 354.6318(2016):1410-1414.

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