オガワ　トシユキ   OGAWA Toshiyuki   小川　知之    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	2008
形態種別	学術雑誌
標題	Selection principle for various modes of spatially non-uniform electrochemical oscillations
執筆形態	共著(筆頭者以外)
掲載誌名	J. Chemical Physics
巻・号・頁	128(1),pp.014714
著者・共著者	S.Fukushima，S. Nakanishi，Y. Nakato
概要	The pattern selection principle for various modes of spatially nonuniform oscillation was investigated by taking a current oscillation of negative differential resistance type, appearing in H2O2 reduction on platinum (Pt) ring electrodes, as a model system. In experiments, various modes of spatiotemporal oscillation, such as a spatially uniform oscillation, standing wave oscillation, and rotating wave oscillation, appeared depending on the applied potential and the distance between the Pt-ring electrode and the reference electrode. A simple mathematical model for the spatiotemporal patterns at the electrode surface was proposed. Numerical calculations and nonlinear bifurcation analysis based on the proposed model reproduced all the essential features of the experimental results and clarified the pattern selection principle.