Next Article in Journal
Thermal Stability of Potassium-Promoted Cobalt Molybdenum Nitride Catalysts for Ammonia Synthesis
Previous Article in Journal
A Model of Catalytic Cracking: Catalyst Deactivation Induced by Feedstock and Process Variables
Previous Article in Special Issue
A Review of the Use of Semiconductors as Catalysts in the Photocatalytic Inactivation of Microorganisms
Article

Fabrication and Characterization of a Marine Wet Solar Cell with Titanium Dioxide and Copper Oxides Electrodes

Department of Marine Electronics and Mechanical Engineering, School of Marine Technology, Tokyo University of Marine Science and Technology, 2-1-6 Etchujima, Koto-ku, Tokyo 135-8533, Japan
*
Author to whom correspondence should be addressed.
Academic Editors: Paola Semeraro and Roberto Comparelli
Catalysts 2022, 12(1), 99; https://doi.org/10.3390/catal12010099
Received: 24 December 2021 / Revised: 9 January 2022 / Accepted: 13 January 2022 / Published: 15 January 2022
(This article belongs to the Special Issue Application of Photocatalysts in Environmental Chemistry)
One of the effective ways of utilizing marine environments is to generate energy, power, and hydrogen via the effect of photocatalysts in the seawater. Since the ocean is vast, we are able to use its large area, but the power generation system must be of low cost and have high durability against both force and corrosion. In order to meet those requirements, this study focuses on the fabrication of a novel marine wet solar cell composed of a titanium dioxide photoanode and a copper oxide photocathode. These electrodes were deposited on type 329J4L stainless steel, which possesses relative durability in marine environments. This study focuses on the characterization of the photocatalytic properties of electrodes in seawater. Low-cost manufacturing processes of screen-printing and vacuum vapor deposition were applied to produce the titanium dioxide and copper oxides electrodes, respectively. We investigated the photopotential of the electrodes, along with the electrochemical properties and cell voltage properties of the cell. X-ray diffraction spectroscopy (XRD) of the copper oxides electrode was analyzed in association with the loss of photocatalytic effect in the copper oxides electrode. Although the conversion efficiency of the wet cell was less than 1%, it showed promising potential for use in marine environments with low-cost production. Electrochemical impedance spectroscopy (EIS) of the cell was also conducted, from which impedance values regarding the electrical properties of electrodes and their interfaces of charge-transfer processes were obtained. This study focuses on the early phase of the marine wet solar cell, which should be further studied for long-term stability and in actual marine environmental applications. View Full-Text
Keywords: titanium dioxide; copper oxides; marine wet solar cell; photocatalysts; seawater electrolyte titanium dioxide; copper oxides; marine wet solar cell; photocatalysts; seawater electrolyte
Show Figures

Figure 1

MDPI and ACS Style

Wunn, H.N.; Motoda, S.; Morita, M. Fabrication and Characterization of a Marine Wet Solar Cell with Titanium Dioxide and Copper Oxides Electrodes. Catalysts 2022, 12, 99. https://doi.org/10.3390/catal12010099

AMA Style

Wunn HN, Motoda S, Morita M. Fabrication and Characterization of a Marine Wet Solar Cell with Titanium Dioxide and Copper Oxides Electrodes. Catalysts. 2022; 12(1):99. https://doi.org/10.3390/catal12010099

Chicago/Turabian Style

Wunn, Htoo N., Shinichi Motoda, and Motoaki Morita. 2022. "Fabrication and Characterization of a Marine Wet Solar Cell with Titanium Dioxide and Copper Oxides Electrodes" Catalysts 12, no. 1: 99. https://doi.org/10.3390/catal12010099

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop