Diffusive propagation of chemical waves through a microgap

Kenji Suzuki, Tatsuo Yoshinobu, Hiroshi Iwasaki

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


A photolithographic method was developed for micropatterning of catalyst (ferroin) for the BelousovZhabotinsky (BZ) reaction on a cation-exchange membrane. The propagation of chemical waves through microgaps on a catalyst line was quantitatively investigated. When a periodic train of chemical waves entered a micr'ogap, the frequency of the chemical waves was converted into lower frequencies such as 1/2, 1/3, and V4 of the original frequency depending on the gap width. The firing number depended on the gap width and the original frequency of the chemical waves. The frequency conversion is explained in terms of the recovery time of the BZ reaction media.

Original languageEnglish
Pages (from-to)5154-5159
Number of pages6
JournalJournal of Physical Chemistry A
Issue number21
Publication statusPublished - 2000 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry


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