期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 19, 页码 10108-10114出版社
AMER CHEMICAL SOC
DOI: 10.1021/am508121p
关键词
WO3; hierarchical hollow spheres; gas sensing properties; oxalic acid
资金
- Natural Science Foundation of China [61403110]
- Science and Technology Research Project of Heilongjiang Province Department of Education, China [12541224]
Hierarchical self:assembled hollow spheres (HS) of tungsten oxide nanosheets have been synthesized via a template-free hydrothermal method. Morphology evolution of the products is determined by the amount of H2C2O4 (oxalic acid) which serves as chelating agent. Structural features of the products were characterized by Xray diffraction (XRD), and morphology was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In addition) the porous structure was analyzed using the Brunauer-Emmett-Teller (BET) approach. The synthesis mechanism of the products with selfassembled hierarchical structures was proposed. The NO2 gas sensing properties of self-assembled hierarchical WO3 HS materials were investigated, the gas sensing properties Of WO3 synthesized by a variety of formulations were compared, and the possible gas sensing mechanism was discussed. The Obvious enhancement of the gas sensing properties was ascribed to the structure of the hierarchical HS.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据