Park, Hee-Young Park, In-Su Choi, Baeck Lee, Kug-Seung Jeon, Tae-Yeol Sung, Yung-Eun Yoo, Sung Jong 2024-01-20T13:02:25Z 2024-01-20T13:02:25Z 2021-09-04 2013-02 1463-9076 https://pubs.kist.re.kr/handle/201004/128391 Electrocatalysts for hydrogen oxidation reactions (HORs) are the key to renewable-energy technologies including fuel cells, hydrogen pumps, and water splitting. Despite the significant technological interest and tremendous efforts that have been made, development of hydrogen electrode catalysts with high activity at low cost remains a great challenge. Here, we report the preparation, characterization, and electrochemical properties of a hybrid material composed of Pd nanocrystals grown on spontaneously oxidized WC as a high-performance catalyst for the HOR. The Pd/WC hybrid exhibits enhanced catalytic activity compared to a carbon supported Pd (Pd/C) catalyst, making it a Pt-free, effective catalyst for the HOR. The remarkable catalytic activity arises from synergistic ligand effects between Pd and WC. English ROYAL SOC CHEMISTRY METAL-FREE ELECTROCATALYSTS OXYGEN REDUCTION REACTION REDOX TREATMENTS CATALYSIS GRAPHENE NITROGEN PD/WO3 STATES Pd nanocrystals on WC as a synergistic electrocatalyst for hydrogen oxidation reactions Article 10.1039/c2cp43262e 1 PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.15, no.6, pp.2125 - 2130 PHYSICAL CHEMISTRY CHEMICAL PHYSICS 15 6 2125 2130 scie scopus 000313566300045 2-s2.0-84872713426 Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Article METAL-FREE ELECTROCATALYSTS OXYGEN REDUCTION REACTION REDOX TREATMENTS CATALYSIS GRAPHENE NITROGEN PD/WO3 STATES fuel cell electocatalysts Pd nanoparticles WC synergistic effect