Microscopic studies of a SnO2/α-Fe2O3 architectural nanocomposite using Mossbauer spectroscopic and magnetic measurements

被引：4

作者：

Hayashi, Naoaki ^{[1
]}

Muranaka, Shigetoshi ^{[1
]}

Yamamoto, Shinpei ^{[2
]}

Takano, Mikio ^{[2
]}

Zhang, Dong-Feng ^{[3
,4
]}

Sun, Ling-Dong ^{[3
,4
]}

Yan, Chun-Hua ^{[3
,4
]}

机构：

[1] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan

[2] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[3] Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

[4] Peking Univ, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, Beijing 100871, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2008年 / 181卷 / 12期

关键词：

Mossbauer spectroscopy; SnO(2)/alpha-Fe(2)O(3) nanocomposite;

D O I：

10.1016/j.jssc.2008.09.001

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A SnO(2)/alpha-Fe(2)O(3) architectural nanocomposite, which was evidenced as SnO(2) nanorod arrays assembled on the surface of alpha-Fe(2)O(3) nanotubes in our previous study, was investigated Microscopically by means of Mossbauer spectroscopic and magnetic measurements. It was found for the SnO(2) nanorods that Fe(3+) ions substituted slightly to Sn(0.998)Fe(0.002)O(2) Concerning the of alpha-Fe(2)O(3) tubes, the Morin transition, which was completely suppressed in the mother, SnO(2)-free alpha-Fe(2)O(3) nanotubes, was found to be recovered locally. We speculate that it takes place in the interface area as a result of structural modification needed for the connection with the SnO(2) nanorods. Crown Copyright (C) 2008 Published by Elsevier Inc. All rights reserved.

引用

页码：3283 / 3286

页数：4

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