Jeon, Hyo Sang Park, Wonil Kim, Jaehoon Kim, Honggon Kim, Woong Min, Byoung Koun 2024-01-20T17:34:14Z 2024-01-20T17:34:14Z 2021-09-02 2011-02 0360-3199 https://pubs.kist.re.kr/handle/201004/130681 In a monolithic photovoltaic-electrolysis system, photovoltaic and catalytic layers are generally constructed on both sides of a conducting substrate. For the realization of this architecture it is critical to fabricate the catalytic layer at sufficiently low temperature in order not to deteriorate the photovoltaic photoanode that is already installed on the reverse side of the catalytic layer. In this study we demonstrate successful fabrication of Co3O4 electrocatalyst films at low temperature (similar to 50 degrees C) on a stainless steel substrate by a paste coating method using Nafion as a binder. The Co3O4 films were found to be catalytically efficient and stable in water splitting reaction in an alkaline aqueous solution. More importantly, the Co3O4 films casted at low temperature (similar to 50 degrees C) revealed the highest hydrogen production rate in the electrolytic cell compared to the films prepared at higher temperatures (e.g. 150 and 300 degrees C), which would be very beneficial in the construction of a monolithic photovoltaic-electrolysis system. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD SOLAR-HYDROGEN WATER OXYGEN FUEL ELECTRODES EFFICIENCY FUTURE Printed Co3O4 film as an electrocatalyst for hydrogen production by a monolithic photovoltaic-electrolysis system Article 10.1016/j.ijhydene.2010.11.026 1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.36, no.3, pp.1924 - 1929 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 36 3 1924 1929 scie scopus 000288825800003 2-s2.0-79551618756 Chemistry, Physical Electrochemistry Energy & Fuels Chemistry Electrochemistry Energy & Fuels Article SOLAR-HYDROGEN WATER OXYGEN FUEL ELECTRODES EFFICIENCY FUTURE Water splitting Hydrogen Nafion Co3O4 Electrocatalysts