VOC gas sensor using ZnO hierarchical structures

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420688
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: National Institute for Materials Science
• Principal Investigator: Saito Noriko 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主任研究員 (20354417)
• Co-Investigator(Renkei-kenkyūsha): SAKAGUCHI Isao 物質・材料研究機構, 機能性材料研究拠点, グループリーダー (20343866) ; ADACHI Yutaka 物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (30354418) ; WATANABE Ken 九州大学, 総合理工学研究科, 准教授 (90552480) ; HANEDA Hajime 物質・材料研究機構, 経営企画部門経営戦略室, 調査役 (70354420)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: センサ / 酸化亜鉛

Outline of Final Research Achievements

Volatile Organic Compounds (VOC) gas sensor using ZnO with hierarchical structures was investigated.
ZnO particles were synthesized solvothermally from the solution of zinc acetate and hexamethylenetetramine in ethylene glycol and water. ZnO spherical particles composed of pyramid-shaped crystallites, which were radially aligned along the c-axis, and the broken particles were obtained. We evaluated their gas sensing properties to ethanol gas and demonstrated that the collapse of the spherical particles led to a high sensitivity.

Free Research Field

セラミックス合成科学