Toward New Fuel Cell Support Materials: A Theoretical and Experimental Study of Nitrogen-Doped Graphene

Min Ho Seo, Sung Mook Choi, Eun Ja Lim, In Hye Kwon, Joon Kyo Seo, Seung Hyo Noh, Won Bae Kim, Byungchan Han

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

Nano-scale Pt particles are often reported to be more electrochemically active and stable in a fuel cell if properly displaced on support materials; however, the factors that affect their activity and stability are not well understood. We applied first-principles calculations and experimental measurements to well-defined model systems of N-doped graphene supports (N-GNS) to reveal the fundamental mechanisms that control the catalytic properties and structural integrity of nano-scale Pt particles. DFT calculations predict thermodynamic and electrochemical interactions between N-GNS and Pt nanoparticles in the methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). Moreover, the dissolution potentials of the Pt nanoparticles supported on GNS and N-GNS catalysts are calculated under acidic conditions. Our results provide insight into the design of new support materials for enhanced catalytic efficiency and long-term stability.

Original languageEnglish
Pages (from-to)2609-2620
Number of pages12
JournalChemSusChem
Volume7
Issue number9
DOIs
Publication statusPublished - 2014 Sep

Bibliographical note

Funding Information:
This work was supported by the Global Frontier R&D Program (2013-073298) Center for Hybrid Interface Materials (HIM) funded by the Ministry of Science, ICT&Future Planning, the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2013029776 (Mid-career Researcher Program)), and the Global Frontier R&D Program (0420-20130103) Center for Multiscale Energy System funded by the NRF under the Ministry of Science, ICT&Future Planning, Korea. We also appreciate the support of the Core Technology Development Program of the Research Institute for Solar and Sustainable Energies (RISE/ GIST), and Korea Institute of Science and Technology Information (KISTI) that allowed us to use the supercomputing facility (KSC-2013-C2-008 and KSC-2013-C2-054).This work was also partly supported by Leading Foreign Research Institute Recruitment Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) (2012K1A4A3053565), and by the New and Renewable Energy R&D Program (20113020030020) under the Ministry of Knowledge Economy.

Funding Information:
This work was supported by the Global Frontier R&D Program (2013-073298) Center for Hybrid Interface Materials (HIM) funded by the Ministry of Science, ICT&Future Planning, the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2013029776 (Mid-career Researcher Program)), and the Global Frontier R&D Program (0420-20130103) Center for Multiscale Energy System funded by the NRF under the Ministry of Science, ICT&Future Planning, Korea. We also appreciate the support of the Core Technology Development Program of the Research Institute for Solar and Sustainable Energies (RISE/GIST), and Korea Institute of Science and Technology Information (KISTI) that allowed us to use the supercomputing facility (KSC-2013-C2-008 and KSC-2013-C2-054).This work was also partly supported by Leading Foreign Research Institute Recruitment Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) (2012K1A4A3053565), and by the New and Renewable Energy R&D Program (20113020030020) under the Ministry of Knowledge Economy.

Publisher Copyright:
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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