Park, Jinkyu Jang, Jue-Hyuk Lee, Ahryeon Kim, Seongbeen Lee, Seunghyun Yoo, Sung Jong Lee, Jinwoo 2024-01-19T13:02:11Z 2024-01-19T13:02:11Z 2022-01-25 2022-01 2366-7486 https://pubs.kist.re.kr/handle/201004/115882 The development of high-performance platinum group metal (PGM)-free electrocatalysts for the hydrogen oxidation reaction (HOR) in anion exchange membrane fuel cells (AEMFCs) remains a great challenge. Here, a novel design strategy for improving the catalytic activity of PGM-free catalysts by adopting N-doped large-porous carbon as a support material is reported. This paper shows the effect of support on the activity of non-noble NiMo in HOR by comparing NiMo alloy on N-doped mesocellular carbon foam (NiMo/N-MSUF-C) with NiMo/MSUF-C and NiMo on N-doped CMK-3 (NiMo/N-CMK-3). The strong interaction between NiMo and N species in N-MSUF-C alters the electronic structure of NiMo toward optimal binding energies for H and OH. The large pores in N-MSUF-C facilitate the diffusion of OH- into the catalyst layer, thereby increasing the limiting current density, which is higher compared with that of NiMo/N-CMK-3. The AEMFC with NiMo/N-MSUF-C as the anode shows a higher peak power density of 152 mW cm(-2) in H-2/O-2 compared with that of previously reported PGM-free catalysts. These results can lead to efficient designing of highly effective AEMFCs for practical applications. English WILEY-V C H VERLAG GMBH Effect of Support for Non-Noble NiMo Electrocatalyst in Alkaline Hydrogen Oxidation Article 10.1002/adsu.202100226 1 Advanced Sustainable Systems, v.6, no.1 Advanced Sustainable Systems 6 1 N scie scopus 000703743800001 2-s2.0-85116341545 Green & Sustainable Science & Technology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article OXYGEN REDUCTION REACTION FUEL-CELLS HIGH-PERFORMANCE CATALYSTS PLATINUM ELECTROOXIDATION ENERGY ANODE ACID PH anion exchange membrane fuel cells alkaline hydrogen oxidation non-noble metal support effect