@article{861ed7285e1345ed87f057e373b8642e,
title = "Supported core at shell electrocatalysts for fuel cells: Close encounter with reality",
abstract = "Core at shell electrocatalysts for fuel cells have the advantages of a high utilization of Pt and the modification of its electronic structures toward enhancement of the activities. In this study, we suggest both a theoretical background for the design of highly active and stable core@shell/C and a novel facile synthetic strategy for their preparation. Using density functional theory calculations guided by the oxygen adsorption energy and vacancy formation energy, Pd3Cu1@Pt/C was selected as the most suitable candidate for the oxygen reduction reaction in terms of its activity and stability. These predictions were experimentally verified by the surfactant-free synthesis of Pd3Cu1/C cores and the selective Pt shell formation using a Hantzsch ester as a reducing agent. In a similar fashion, Pd@Pd 4Ir6/C catalyst was also designed and synthesized for the hydrogen oxidation reaction. The developed catalysts exhibited high activity, high selectivity, and 4,000 h of long-term durability at the single-cell level.",
author = "Hwang, {Seung Jun} and Yoo, {Sung Jong} and Jungho Shin and Cho, {Yong Hun} and Jang, {Jong Hyun} and Eunae Cho and Sung, {Yung Eun} and Nam, {Suk Woo} and Lim, {Tae Hoon} and Lee, {Seung Cheol} and Kim, {Soo Kil}",
note = "Funding Information: This research was supported by the Korean Ministry of Knowledge Economy through the Korea Institute of Energy Technology Evaluation and Planning under contract number 2008-N-FC08-P-01 (S. J. H, S. J. Y, S.–K. K, S. W. N, and T.–H. L,), by the KIST Institutional Program under contract number 2E22873-12-020 (S.–K. K. and E. C.) and by the Joint Research Project funded by the Korea Research Council of Fundamental Science and Technology (KRCF), as a part of the {\textquoteleft}{\textquoteleft}development and mechanism study of high performance and durable components for high-temperature PEMFCs.{\textquoteright}{\textquoteright} (J. H. J). It was also partially supported by Korean Ministry of Education, Science and Technology through the National Research Foundation of Korea under contract number 2009-0082471. (J. S. and S.-C. L.).",
year = "2013",
doi = "10.1038/srep01309",
language = "English",
volume = "3",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
}