期刊
TALANTA
卷 167, 期 -, 页码 638-644出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2017.03.013
关键词
Hydrogen sensor; Vanadium doping; Metal oxide; Porous nanofiber
资金
- National Natural Science Foundation of China [21474043, 21274052]
- National Basic Research Program of China (973 Program) [2015CB856505, 2015CB932200]
- Shenzhen Science and Technology Research Grant [JCYJ20150629144328079]
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 SnO2 crystal in different roles, and therefore deform or distort the SnO2 structure. The modulation effects of V4+ and V5+ on hydrogen detecting performance were discussed. With a suitable amount of V-doping, the porous SnO2 nanofibers exhibits similar to 66% increase of response sensitivity, 33% faster in response (2 s) and 50% faster in recovery time (1 s), comparing with undoped SnO2 nanofibers.
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