スエマツ　ノブヒコ   SUEMATSU Nobuhiko   末松　信彦    所属   明治大学  総合数理学部    職種   専任教授
言語種別	英語
発行・発表の年月	2021/04
形態種別	学術雑誌
査読	査読あり
標題	Switching between Two Oscillatory States Depending on the Electrical Potential.
執筆形態	共著(筆頭者以外)
掲載誌名	The journal of physical chemistry. B
掲載区分	国外
巻・号・頁	125(14),pp.3638-3643
総ページ数	6
国際共著	国際共著
著者・共著者	Kuze Masakazu, Horisaka Mari, Suematsu Nobuhiko J, Amemiya Takashi, Steinbock Oliver, Nakata Satoshi
概要	Various spatiotemporal patterns were created on the surface or in the body of cation-exchange resin beads which were loaded with the catalyst of the Belousov-Zhabotinsky (BZ) reaction. Either global oscillations (GO) or traveling waves (TW) and the switching between them were observed in the previous papers, but it was not clear how chemicals contribute to the reaction inside/around the BZ bead. In this paper, we scanned the electrical potential, E, from +1 to -1 V (negative scan) and then turned from -1 to +1 V (positive scan) to control the switching between GO and TW. We found that the electrical switching potential from TW to GO, ETG, and from GO to TW, EGT, depended on the scanning direction of E and the diameter of the bead, d. The present study suggests that the electrode-induced increase of the inhibitor, Br-, and the activator, HBrO2, around the BZ bead plays an important role in determining ETG and EGT.
DOI	10.1021/acs.jpcb.0c11019
ISSN	1520-5207
PMID	33797905