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author:

姜秀榕 (姜秀榕.) [1] | 沈水发 (沈水发.) [2]

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CQVIP

Abstract:

为了提高α-Fe2O3纳米粉体对CO的敏感性,本文利用双微乳液法,在聚乙二醇辛基苯基醚(TX100)/正己醇/环己烷,水体系的油包水(W/O)型微乳液中合成了掺杂的α—Fe2O3纳米粉体。考察了水相含量对前驱体粒径的影响;对前驱体经400℃焙烧后所得的粉体进行了表征;并对其分散性、气敏性、选择性、稳定性、响应性和恢复性进行了测试。实验结果表明:当水相含量为7%时,所制得的前驱体的粒径最小。样品在水中的电动行为说明了粉体具有良好的分散特性;同时,掺杂0.5mol% Sn^4+、Au^3+、Zr^4+的粉体对CO气体有较好的气敏性,达到了15。

Keyword:

CO Α-FE2O3 微乳液 气敏性

Community:

  • [ 1 ] 龙岩学院化学与材料学院,福建龙岩364000
  • [ 2 ] 福州大学化学化工学院,福建福州350002

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Source :

龙岩学院学报

ISSN: 1673-4629

Year: 2008

Issue: 6

Volume: 26

Page: 73-77

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 1

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