Probing NiO nanocrystals by EXAFS spectroscopy

被引：25

作者：

Anspoks, A. ^{[1
]}

Kuzmin, A. ^{[1
]}

Kalinko, A. ^{[1
]}

Timoshenko, J. ^{[1
]}

机构：

[1] Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia

来源：

SOLID STATE COMMUNICATIONS | 2010年 / 150卷 / 45-46期

关键词：

Nanostructures; EXAFS; Crystal structure and symmetry; MOLECULAR-DYNAMICS SIMULATIONS; LATTICE EXPANSION; SOLID-SOLUTIONS; NANOPARTICLES; DEPENDENCE; SURFACES; ORIGIN; EDGE;

D O I：

10.1016/j.ssc.2010.09.027

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The structure relaxation in nanocrystalline NiO (nano-NiO 13 nm crystallite size) has been studied by X-ray absorption spectroscopy at the Ni K-edge at 300 K Conventional single-scattering analysis of the EXAFS signals from the first two coordination shells showed a lattice volume expansion by about 1% and a contraction of the Ni-O bonds by about 0 5% in nano-NiO compared to microcrystalline NiO A more sophisticated approach based on a combination of classical molecular dynamics and ab initio multiple-scattering EXAFS theory allowed us to interpret both static relaxation and lattice dynamics in nano-NiO (C) 2010 Elsevier Ltd All rights reserved

引用

页码：2270 / 2274

页数：5

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