Solvothermal synthesis of ZnO spherical particles and VOC sensor application

Noriko Saito, Kenji Matsumoto, Ken Watanabe, Tangi Aubert, Fabien Grasset, Isao Sakaguchi, Hajime Haneda

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

We synthesized micrometer-sized ZnO spherical particles solvothermally from the solutions of zinc acetate anhydride, hexamethylenetetramine (HMT), ethylene glycol (EG) and water, and examined the gas sensing properties. The spherical powders were composed of nano particles, which were radially aligned along the c-axis. We obtained particles with smaller crystallites under conditions of higher EG concentrations and shorter reaction period. Spherical powder made of crystallites of 35 nm was precipitated in the 95 vol%-EG solvent by heating at 120°C for 4 h. The ZnO powder annealed at 450°C worked as a gas sensor device for volatile organic compounds (VOC) gases. The sensitivity was the best in the case of ethanol gas at 350°C.

本文言語英語
ページ(範囲)488-491
ページ数4
ジャーナルJournal of the Ceramic Society of Japan
122
1426
DOI
出版ステータス出版済み - 6 2014
外部発表はい

All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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