Robust Phase Control through Hetero-Seeded Epitaxial Growth for Face-Centered Cubic Pt@Ru Nanotetrahedrons with Superior Hydrogen Electro-Oxidation Activity

	Robust Phase Control through Hetero-Seeded Epitaxial Growth for Face-Centered Cubic Pt@Ru Nanotetrahedrons with Superior Hydrogen Electro-Oxidation Activity
	Gu, Jun 1; Guo, Yu 1; Jiang, Ying-Ying 2,3; Zhu, Wei 1; Xu, Yan-Shuang 1; Zhao, Ze-Qiong 1; Liu, Jin-Xun 4; Li, Wei-Xue 4; Jin, Chuan-Hong 2,3; Yan, Chun-Hua 1
刊名	journal of physical chemistry c
	2015-08-06
卷号	119 期号:31 页码:17697-17706
英文摘要	controllable synthesis of metallic nanocrystals (ncs) with tunable phase, uniform shape, and size is of multidisciplinary interests but has still remained challenging. herein, a robust phase control strategy is developed, in which seeds with a given phase are added to guide the epitaxial growth of the target metal to inherit the seeds phase. through this strategy, m@ru (m = pt, pd) ncs in the face-centered cubic (fcc) phase, a metastable phase for ru under ambient conditions, were synthesized with the hydrothermal method. the pt@ru ncs showed not only the pure fcc phase but also high morphology selectivity to tetrahedrons surrounded by {111} facets. as revealed by density function theory (dft) calculations, the preferentially epitaxial growth of ru atom layers on the nonclosest-packed facets of hetero fcc metal seeds led to the formation of fcc ru shells. furthermore, the fcc pt@ru tetrahedrons/c showed electrocatalytic activity enhancement with more than an order of magnitude toward hydrogen oxidation reaction (hor) in acidic electrolyte compared with hydrothermally synthesized ru/c. electrochemical measurement combined with dft calculations revealed that the optimum hor activity should be achieved on well-crystallized fcc ru catalysts exposing maximum {111} facets.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science
关键词[WOS]	core-shell nanoparticles ; single-crystal surfaces ; oxidation reaction ; carbon-monoxide ; underpotential deposition ; ruthenium nanoparticles ; shape control ; noble-metals ; adsorption ; ru(0001)
收录类别	SCI
语种	英语
WOS记录号	WOS:000359332200024
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/146462]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Peking Univ, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Zhejiang Univ, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China 3.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Gu, Jun,Guo, Yu,Jiang, Ying-Ying,et al. Robust Phase Control through Hetero-Seeded Epitaxial Growth for Face-Centered Cubic Pt@Ru Nanotetrahedrons with Superior Hydrogen Electro-Oxidation Activity[J]. journal of physical chemistry c,2015,119(31):17697-17706.
APA	Gu, Jun.,Guo, Yu.,Jiang, Ying-Ying.,Zhu, Wei.,Xu, Yan-Shuang.,...&Zhang, Ya-Wen.(2015).Robust Phase Control through Hetero-Seeded Epitaxial Growth for Face-Centered Cubic Pt@Ru Nanotetrahedrons with Superior Hydrogen Electro-Oxidation Activity.journal of physical chemistry c,119(31),17697-17706.
MLA	Gu, Jun,et al."Robust Phase Control through Hetero-Seeded Epitaxial Growth for Face-Centered Cubic Pt@Ru Nanotetrahedrons with Superior Hydrogen Electro-Oxidation Activity".journal of physical chemistry c 119.31(2015):17697-17706.