Copper-doped Tin Oxide：Fabrication and Gas-sensing Properties
[1]HU Jun,GE Meiying,YIN Guilin,et al.Copper-doped Tin Oxide：Fabrication and Gas-sensing Properties[J].Journal of Zhengzhou University (Engineering Science),2016,37(03):48-.[doi:10.13705/j.issn.1671-6833.2016.03.011]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 03
Page number:
48-
Column:
Public date:
2016-05-10
- Title:
- Copper-doped Tin Oxide：Fabrication and Gas-sensing Properties
- CLC:
- TB383.1
- Abstract:
- Cu-doped SnO was synthesized via a simple and facile oxalic acid water hydrothermal route by u-sing polyvinylpyrrolidone as surfactant and stannous chloride as well as cupric chloride dissolved in this solu-tion. The structure and morphology of the as-synthesized samples were characterized by XRD,SEM and TEMetc.And the influence of the doping ratio of copper ( 0 ~ 20% ) to gas-sensing properties were analyzed sys-tematically by using a computer-controlled measure system of WS-30A. The gas sensing results indicated thatthe appropriate proportion of Cu-doping can improve the gas-sensing properties,especially the 10%,in whichthe response time,recovery time,selectivity and durability of sensors towards to hydrogen sulfide gas improvedsignificantly,and the optimum response temperature decreased dramatically to as low as 120 ℃.Finally,themechanism of the SnO gas-sensing properties enhanced by Cu-doping was discussed.
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