Gas Sensitivity of ZnS Prepared by Solid State Reaction at Room Temperature

Journal of Inorganic Materials

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Gas Sensitivity of ZnS Prepared by Solid State Reaction at Room Temperature

NIU Xin-Shu¹; LIU Yan-Li¹; XU Jia-Qiang²

1. College of Chemistry & Environmental Science; Henan Normal University; Key Laboratory of Environmental Science and Engineering; Education Commission of Henan; Xinxiang Henan 453002; China; 2 . Zhengzhou Institute of Light Industry, Zhengzhou Henan 450002, China

Received:2001-06-11 Revised:2001-09-24 Published:2002-07-20 Online:2002-07-20

Abstract

Abstract: Nanometer ZnS powders were synthesized by the solid state reaction of ZnSO₄·7H₂O with Na₂S·9H₂O at room temperature. The gas sensitivity of ZnS obtained was discussed XRD and TEM show that the solid-state reaction at room temperature is feasible and reasonable and the mean grain size of ZnS crystalline is about 15nm. The translation temperature from ZnS to ZnO measured by TG-DTA is 610℃. The sensor based on ZnS obtained shows a good sensitivity and selectivity to H₂S.

Key words: zinc sulfide, room temperature, solid-state reaction, gas-sensing material

CLC Number:

TP212

NIU Xin-Shu,LIU Yan-Li,XU Jia-Qiang. Gas Sensitivity of ZnS Prepared by Solid State Reaction at Room Temperature[J]. Journal of Inorganic Materials.

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Gas Sensitivity of ZnS Prepared by Solid State Reaction at Room Temperature

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