Choi, Suyeon Hong, Doosun Yang, Hyunwoo Roh, Jeonghan Yoo, Jaeyoung Lee, Changsoo Kim, Minjoong Yun, Young Hwa Bang, Kihoon Kim, Jong Min Cho, Eunae Han, Sang Soo Kim, Donghun Lee, Hyuck Mo 2024-08-22T08:00:07Z 2024-08-22T08:00:07Z 2024-08-22 2024-09 2380-8195 https://pubs.kist.re.kr/handle/201004/150467 Attaining the high durability of supported metal catalysts in heterogeneous catalysis remains a significant challenge. Here, we introduce a mixed tantalum oxide-carbon support for an oxygen reduction reaction catalyst in alkaline fuel cells, aiming to address the degradation arising from suboptimal metal-support interactions. The composite support, conceptualized as a heteroenergetic support, comprises two distinct components exhibiting substantially disparate affinities for metal nanoparticles (NPs). This unique configuration ensures the effective stabilization of the metal NPs on the support. The Au-doped Pd NPs on the mixed tantalum oxide-carbon support exhibit fully sustained mass activity even after a 10000-cycle accelerated durability test. This exceptional durability is ascribed to the effective suppression of the particle agglomerations, as elucidated through transmission electron microscopy and X-ray photoelectron spectroscopy. Our study highlights the efficacy of a heteroenergetic support as a compelling approach for achieving ultradurability in catalytic operations and indicates the broad applicability of this strategy for diverse reactions. English American Chemical Society Enhancing Fuel Cell Durability with Heteroenergetic TaOx-Carbon Support Article 10.1021/acsenergylett.4c01946 1 ACS Energy Letters, v.9, no.9, pp.4265 - 4272 ACS Energy Letters 9 9 4265 4272 N scie scopus 001290156000001 2-s2.0-85200554063 Chemistry, Physical Electrochemistry Energy & Fuels Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Science & Technology - Other Topics Materials Science Article OXYGEN REDUCTION REACTION NANOPARTICLES STABILITY PLATINUM CATALYSTS ELECTROCATALYST SIZE