钒掺杂氧化锡多孔纳米纤维：增强氢气检测响应性

Vanadium-doped tin oxide porous nanofibers: Enhanced responsivity for hydrogen detection.

作者信息

Xu Xiuru, Yin Min, Li Na, Wang Wei, Sun Bolun, Liu Ming, Zhang Dongwei, Li Zhenyu, Wang Ce

机构信息

School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.

出版信息

Talanta. 2017 May 15;167:638-644. doi: 10.1016/j.talanta.2017.03.013. Epub 2017 Mar 4.

DOI:10.1016/j.talanta.2017.03.013

PMID:28340772

Abstract

Vanadium (V)-doped tin oxide (SnO) one-dimensional porous nanofibers (PNFs) were fabricated for the hydrogen detection application. V-doping changes the distances of different facets of the SnO crystal in different roles, and therefore deform or distort the SnO structure. The modulation effects of V and V on hydrogen detecting performance were discussed. With a suitable amount of V-doping, the porous SnO nanofibers exhibits ~66% increase of response sensitivity, 33% faster in response (2s) and 50% faster in recovery time (1s), comparing with undoped SnO nanofibers.

摘要

制备了钒（V）掺杂的氧化锡（SnO）一维多孔纳米纤维（PNF）用于氢气检测应用。V掺杂以不同方式改变了SnO晶体不同晶面的间距，从而使SnO结构发生变形或扭曲。讨论了V和V对氢气检测性能的调制作用。与未掺杂的SnO纳米纤维相比，适量的V掺杂使多孔SnO纳米纤维的响应灵敏度提高了约66%，响应速度加快了33%（2秒），恢复时间加快了50%（1秒）。