摘要
通过简单的溶剂热方法制备了一种单分散纳米结构α-Fe2O3,其形貌和大小能够通过水的量来调变.随着水量的增加,0001面的表面积逐渐减小,厚度逐渐增加.对样品的气敏性测试分析发现,随α-Fe2O3片0001面表面积的减小,样品对乙醇的响应能力逐渐减弱.此外,结晶性差的样品也会表现出相对弱的气敏性.
The synthesis of uniform α-Fe2O3 nanocrystals was reported in this manuscript. Hexagonal flake-like nanoplates were successfully grown by a solvothermal route. The shape and size can be tunable by altering the content of water as a minor co-solvent. With the increase of water content,the surface area of α-Fe2O3 （0001） continuously decrease but the thickness of flakes increases. The response ability of sample to alcohol gradually decreases as the disappearance of α-Fe2O3 （0001）. For well crystallized sample,the gas sensitive property would be enhanced.
出处
《材料研究与应用》
CAS
2010年第4期458-462,共5页
Materials Research and Application
基金
国家自然科学基金委-广东省人民政府联合基金(U0734002)
广东省自然科学基金重点项目(8251027501000010)
关键词
三氧化二铁
纳米片
溶剂热合成
气敏性
α-Fe2O3
nanoplate
solution-based synthesis
gas sensitive property
