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SUEMATSU Nobuhiko
Department Undergraduate School , School of Interdisciplinary Mathematical Sciences Position Professor |
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| Language | English |
| Publication Date | 2021/04 |
| Type | Academic Journal |
| Peer Review | Peer reviewed |
| Title | Switching between Two Oscillatory States Depending on the Electrical Potential. |
| Contribution Type | Co-authored (other than first author) |
| Journal | The journal of physical chemistry. B |
| Journal Type | Another Country |
| Volume, Issue, Page | 125(14),pp.3638-3643 |
| Total page number | 6 |
| International coauthorship | International coauthorship |
| Author and coauthor | Kuze Masakazu, Horisaka Mari, Suematsu Nobuhiko J, Amemiya Takashi, Steinbock Oliver, Nakata Satoshi |
| Details | 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 |