Nano-sized-γ-Fe2O3 as lithium battery cathode
Nano-sized-γ-Fe2O3 as lithium battery cathode
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DOI：
10.1016/j.jpowsour.2005.03.025
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发表时间：
2005-08-26
影响因子：
9.2
通讯作者：
Kanno, R
中科院分区：
文献类型：
--
作者：
Kanzaki, S;Inada, T;Kanno, R
以Fe(CO)(5)为原料制备的铁胶束温和氧化合成了纳米晶γ-Fe2O_3(粒径约为7 nm)。400℃真空热处理能有效去除固相中质量分数超过40wt%的有机杂质。对尖晶石-岩盐转变的显著抑制被确认为主要的纳米效应，并导致了可逆的拓扑化学相互作用与相应的晶格体积膨胀。(C)2005 Elsevier B.V.保留所有权利。
Nano-sized crystalline gamma-Fe2O3 (particle size ca. 7 nm) was synthesized by mild oxidation of iron micelle obtained from Fe(CO)(5). Heat treatment at 400 degrees C in vacuum was effective to remove a large amount of organic impurities, the weight of which was over 40 wt.% in the as-prepared solid phase. Significant suppression of the spinel-rocksalt transformation was confirmed as the major nano-sized effect and led to the reversible topochemical lithium interaction with the corresponding lattice volume expansion. (c) 2005 Elsevier B.V. All rights reserved.