Vanadium-doped tin oxide porous nanofibers: Enhanced responsivity for hydrogen detection.
Vanadium (V)-doped tin oxide (SnO2) one-dimensional porous nanofibers (PNFs) were fabricated for the hydrogen detection application. V-doping changes the distances of different facets of the SnO2crystal in different roles, and therefore deform or distort the SnO2structure. The modulation effects of V4+and V5+on hydrogen detecting performance were discussed. With a suitable amount of V-doping, the porous SnO2nanofibers exhibits ~66% increase of response sensitivity, 33% faster in response (2s) and 50% faster in recovery time (1s), comparing with undoped SnO2nanofibers.
School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China. Electronic address: xuxr@pkusz.edu.cn.
Xiuru
X
Xu
Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.
Min
M
Yin
Alan G.MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX 75083, USA.
Na
N
Li
State Key Laboratory of Urban Water Resource and Environment (SKLU-WRE), School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China.
Wei
W
Wang
Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, China.
Bolun
B
Sun
School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
Ming
M
Liu
School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
Dongwei
D
Zhang
Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia.
Zhenyu
Z
Li
Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, China. Electronic address: cwang@jlu.edu.cn.
Ce
C
Wang
Hydrogen sensor; Metal oxide; Porous nanofiber; Vanadium doping