2026-03-15T05:04:16Z https://repository.lib.tottori-u.ac.jp/oai

oai:repository.lib.tottori-u.ac.jp:00007297 2023-11-22T01:50:17Z 1:10 2:12

Light energy storage in TiO2/MnO2 composite electrode for photoelectrochemical capacitor 60423240 Usui, Hiroyuki Usui, Hiroyuki Koseki, Kentaro Tamura, Takahiro 50576717 Domi, Yasuhiro Domi, Yasuhiro 00202086 Sakaguchi, Hiroki Sakaguchi, Hiroki Koseki, Kentaro Tamura, Takahiro Copyright © 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ Photoelectrochemical capacitor Composite electrode Rutile-type titanium oxide Manganese oxide Photoelectrochemical capacitor Composite electrode Rutile-type titanium oxide Manganese oxide Composite electrodes comprising TiO2 and MnO2 particles were prepared as hotoelectrochemical capacitor electrodes that enable both photoelectric conversion and energy storage. A MnO2 electrode was also prepared for characterization of MnO2 alone, and its electrochemical capacitor property was evaluated. The MnO2 electrode showed higher specific capacitance than a RuO2 electrode. Results of the photoelectrochemical measurements demonstrated that the discharge capacity of the TiO2/MnO2 composite electrode was slightly inferior to that of the TiO2 and RuO2 electrodes using. By reducing MnO2 particle size, the composite electrode exhibited increased surface roughness and enhanced capacity. We consider that the smaller MnO2 particles can efficiently store Na+ ions even at a low photo-charge voltage of TiO2. Elsevier 2017-01-01 eng journal article AM https://repository.lib.tottori-u.ac.jp/records/7297 10.1016/j.matlet.2016.10.019 This research was published by Elsevier Inc.: Y. Usui et al. Light energy storage in TiO2/MnO2 composite electrode for photoelectrochemical capacitor. Materials letters. 2017, 186, 338-340 https://www.sciencedirect.com/science/article/pii/S0167577X1631610X https://www.sciencedirect.com/science/article/pii/S0167577X1631610X AA11537623 0167577X Materials letters Materials letters 186 338 340 https://repository.lib.tottori-u.ac.jp/record/7297/files/ml186_338.pdf application/pdf 310.9 kB 2019-01-04