Ahn, Sang Hyun Yoo, Sung Jong Kim, Hyoung-Juhn Henkensmeier, Dirk Nam, Suk Woo Kim, Soo-Kil Jang, Jong Hyun 2024-01-20T05:04:31Z 2024-01-20T05:04:31Z 2021-09-03 2016-01 0926-3373 https://pubs.kist.re.kr/handle/201004/124566 The particle-type electrodes with ultra-low electrocatalyst loading (<10 mu g cm(-2)) were developed as cathodes in the anion exchange membrane water electrolyzer (AEMWE). The Pt-decorated Ni electrocatalysts were prepared on the surface of carbon paper by Ni electrodeposition and subsequent displacement of Ni by Pt; the composition and morphology were controlled by varying HCl concentration. In half cell test, the increase of hydrogen evolution reaction (HER) activity by Pt decoration was confirmed for Pt-Ni/CP-2 that has Pt ratio of 39.4% (1.85 mu g(pt) cm(-2)). A membrane electrode assembly employing Pt-Ni/CP-2 as the HER electrode (total catalyst loading: 13.2 mu g cm(-2)) exhibited a current density of 250 mA cm(-2) at 1.9 V-cell (50 degrees C), which is comparable to the previous reports with much larger loading of 3.1 similar to 80 mg cm(-2). (C) 2015 Elsevier B.V. All rights reserved. English Elsevier BV Anion exchange membrane water electrolyzer with an ultra-low loading of Pt-decorated Ni electrocatalyst Article 10.1016/j.apcatb.2015.07.020 1 Applied Catalysis B: Environmental, v.180, pp.674 - 679 Applied Catalysis B: Environmental 180 674 679 N scie scopus 000362379800075 2-s2.0-84938152596 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article HYDROGEN-PRODUCTION OXYGEN EVOLUTION FUEL-CELLS ALKALINE NICKEL ENERGY NANOPARTICLES CATALYSTS BEHAVIOR Anion exchange membrane water electrolyzer Hydrogen evolution reaction Pt-decorated Ni electrocatalyst Ultra-low Pt loading