Yadav, Jyotiprakash B. Park, Jong-Won Jung, Kwang-Deog Joo, Oh-Shim 2024-01-20T19:02:19Z 2024-01-20T19:02:19Z 2021-09-02 2010-07 0360-3199 https://pubs.kist.re.kr/handle/201004/131304 Environmental compatibility, high flammability, richest in energy per mass unit, and easy conversion into thermal, mechanical and electrical energy are the key advantages of hydrogen fuel, which makes it an idealized vision for future energy as a promising alternative to the diminishing fossil fuels. Unlike the methods very well known in the literature, we used environmental benign photoelectrochemical (PEC) hydrogen production method. Pt is one of the promising electrode materials for PEC method, but high cost makes it impractical for commercialization. A methodology for low Pt loading (7.22 x 10(-5) g cm(-2)) based on electrospray technique is explained for the preparation of hydrogen evolution electrode. The resulted films are annealed at different temperatures and investigated by different characterization techniques that showed surface morphological and compositional changes with annealing temperature. The pores-type structure is transformed to vertically aligned plate-like structure with annealing temperature. After annealing at 400 degrees C, Pt film is more oxidized and enriching about similar to 30% of film surface area with oxidized Pt. The solar to hydrogen conversion efficiency in water splitting was raised from an initial value of 8.4-10.6% and Pt loading was reduced by approximately 1000-fold (from 0.07 to 7.22 x 10(-5) g cm(-2)). Thus, present high efficient hydrogen electrode preparation method utilized less Pt material than the conventional Pt electrode and the efficiency was increased by 26%. This can be scaled up for becoming a volume production low-cost method. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD HIGH-PERFORMANCE ULTRA-LOW FUEL PLATINUM WATER ELECTROCATALYSTS EVOLUTION Low Pt loading, wide area electrospray deposition technique for highly efficient hydrogen evolving electrode in photoelectrochemical cell Article 10.1016/j.ijhydene.2010.02.028 1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.35, no.13, pp.6541 - 6548 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 35 13 6541 6548 scie scopus 000280601600010 2-s2.0-77954821704 Chemistry, Physical Electrochemistry Energy & Fuels Chemistry Electrochemistry Energy & Fuels Article HIGH-PERFORMANCE ULTRA-LOW FUEL PLATINUM WATER ELECTROCATALYSTS EVOLUTION Hydrogen production Photoelectrochemical cell Pt film Electrospray deposition SEM XPS