Dynamical LEED analysis of Ni2P (0001)-1 x 1: Evidence for P-covered surface structure

被引：45

作者：

Hernandez, Alvin B. ^{[1
]}

Ariga, Hiroko ^{[1
]}

Takakusagi, Satoru ^{[1
]}

Kinoshita, Kumiko ^{[2
]}

Suzuki, Shushi ^{[3
]}

Otani, Shigeki ^{[4
]}

Oyama, S. Ted ^{[5
,6
]}

Asakura, Kiyotaka ^{[1
]}

机构：

[1] Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 0010021, Japan

[2] Japan Fine Ceram Ctr, Environm Mat Dev Mat Res & Dev Lab, Nagoya, Aichi 4568587, Japan

[3] Nagoya Univ, Grad Sch Engn, Dept Crystalline Mat Sci, Nagoya, Aichi 4648603, Japan

[4] Natl Inst Mat Sci, Tsukuba, Ibaraki 305, Japan

[5] Virginia Tech, Dept Chem Engn, Environm Catalysis & Nanomat Lab, Blacksburg, VA USA

[6] Univ Tokyo, Dept Chem Syst Engn, Tokyo 1138656, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2011年 / 513卷 / 1-3期

关键词：

ENERGY-ELECTRON DIFFRACTION; ACTIVE PHASE; NI2P/SIO2; HYDRODECHLORINATION; RECONSTRUCTION; CATALYSTS; STM;

D O I：

10.1016/j.cplett.2011.07.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nickel phosphide (Ni2P) is an emerging catalyst for hydrodesulfurization and other important environment- and energy-related catalytic reactions. To understand its high performance, the surface structure of a Ni2P (0 0 0 1) single crystal surface was investigated using dynamical LEED analysis. The obtained surface structure for Ni2P (0 0 0 1)-1 x 1 is a P-covered Ni3P2 structure (Ni3P_P structure) as opposed to the expected bulk terminated surface structures. This Letter discusses the driving force for the formation of the Ni3P_P surface, which involves the minimization of dangling bonds. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：48 / 52

页数：5

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