西华大学学报（自然科学版）Issue(5)：70-74,5.DOI:10.3969/j.issn.1673-159X.2014.05.016
锌掺杂氧化镍纳米线的制备及氧化镍基气敏传感器性能的研究
Fabrication of Zinc-doped Nickel Oxide Nanowires and Research on Gas Sensors based on NiO
摘要
Abstract
In order to improve the responses and recovery speeds of NiO gas sensing materials , Zn-doped NiO nanowires are pre-pared via reduction of Magnetic field induced hydrazine combined with subsequent high temperature oxidation , sensitivity to ammonia of sensors is researched based on Zinc-doped Nickel oxide nanowires .Results obtained from the research show that all the peaks of XRD have a slight shift toward lower angles (0.2°~0.4°) and the interplanar distance has a slight increase (0.01~0.02 nm) with in-creasing Zn dopant concentration from 2 to 5mol%, which is assigned to the successful incorporation of zinc ions in the NiO host struc-ture.The gas sensor based on NiO nanowires with 2~5mol%of Zn doping has 6~8 times faster response speed , and 108~120 times faster recovery speed than pure NiO sensor .Meanwhile, the doped NiO sensor has excellent stability and selectivity toward NH 3 gas o-ver other organic gases .关键词
锌掺杂氧化镍/纳米线/气敏传感器/响应和恢复Key words
zinc-doped nickel oxide/nanowires/gas sensor/response and recovery分类
数理科学引用本文复制引用
王剑,魏晓伟,张建军,唐祁峰,郭彪,徐磊,敖进清..锌掺杂氧化镍纳米线的制备及氧化镍基气敏传感器性能的研究[J].西华大学学报（自然科学版）,2014,(5):70-74,5.基金项目
西华大学重点科研基金项目（z1320110）；西华大学青年学者培养计划（01201418）。 （）
