Bae, Hyo Eun Park, Ji Eun Huynh, T. B. Ngoc Song, Jihyeok Cho, Sung Ki Sung, Yung-Eun Cho, Yong-Hun Kwon, Oh Joong 2024-11-30T06:00:17Z 2024-11-30T06:00:17Z 2024-11-30 2024-12 2050-7488 https://pubs.kist.re.kr/handle/201004/151207 The Pd@CS/CNF800 catalyst, encapsulated in an N-doped carbon shell, was synthesized through a redox reaction between aniline and a metal precursor, followed by formation of a carbon shell via heat treatment. The structure, comprising less than two layers of a porous carbon shell, effectively facilitates oxygen transport, resulting in rapid 4-electron reactivity while maintaining structural integrity even after durability tests due to the protective carbon shell. Compared to commercial catalysts, the mass activity (MA) was improved by more than 2.2-fold, with only a 4 mV decrease in half-wave potential after accelerated stress tests (ASTs), retaining over 80% of its initial MA. Furthermore, when applied in an anion exchange membrane fuel cell (AEMFC), it showed an enhanced current density of 504 mA cm-2 at 0.6 V which was 2 times higher than that of commercial catalysts, confirming its outstanding activity. This was further demonstrated by achieving a specific power density of 2.4 W mgtotal-1. English Royal Society of Chemistry A high-durability palladium catalyst for the oxygen reduction reaction in an alkaline environment Article 10.1039/d4ta05084c 1 Journal of Materials Chemistry A, v.12, no.45, pp.31467 - 31479 Journal of Materials Chemistry A 12 45 31467 31479 N scie scopus 001344121200001 2-s2.0-85207782906 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article MEMBRANE FUEL-CELLS CARBON EFFICIENT GRAPHENE ELECTROCATALYST NANOCOMPOSITES NANOPARTICLES NANOFIBERS