Chemotactic Motion of Catalytic Particles Induced by Chemical Reactions

• Yamamoto Daigo

• Yanagidani Takuya

• Io Yuto

• Shioi Akihisa

Bibliographic Information

Other Title

• 化学反応によって誘起される触媒粒子の化学走性の発現
• カガク ハンノウ ニ ヨッテ ユウキ サレル ショクバイ リュウシ ノ カガクソウセイ ノ ハツゲン

Abstract

Several research groups including us had reported that catalytic particles with asymmetric composition or morphology exhibit autonomous motions in a homogeneous solution containing reactant. In this study, we provide asymmetric environment where unsteady or quasi-steady gradient of a reactant (ethanol) is formed, although we use spherical catalytic particles made of single metal (Pt). As a result, we found that even spherical particles exhibit specific motility, chemotaxis that objects move along concentration gradient of specific chemical species. In our system, Pt catalytic particles show translation toward the area with higher concentrated reactant (ethanol). Such a new phenomenon is expected to apply to chemical systems such as power source of micromotors and catalytic reaction systems with high reaction efficiency, due to particles’ motility.

Journal

• Journal of the Society of Powder Technology, Japan

  Journal of the Society of Powder Technology, Japan 54 (12), 770-775, 2017

  The Society of Powder Technology, Japan

Keywords

• Chemotaxis
• Catalytic particle
• Active matter
• Ethanol

Details

• CRID: 1390282679489575680
• NII Article ID: 130006833812
• NII Book ID: AN00222757
• DOI: 10.4164/sptj.54.770
• ISSN: 18837239
• ISSN: 03866157
• NDL BIB ID: 028732256
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028732256
• Web Site: https://www.jstage.jst.go.jp/article/sptj/54/12/54_54.770/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed