Fabrication of Pt–Cu/RGO hybrids and their electrochemical performance for the oxidation of methanol and formic acid in acid media |
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| Affiliation: | 1. Department of Applied Chemistry, School of Science, Tianjin University of Commerce, Tianjin 300134, PR China;2. School of Science, Tianjin University, Tianjin 300072, PR China;3. School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, PR China;1. Helmut-Fischer Korea, 462, Dogok-ro, Songpa-gu, Seoul 05574, Republic of Korea;2. Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, Republic of Korea;3. Sensor System Research Center, Korea Institute of Science and Technology, 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul 136-791, Republic of Korea;4. School of Mechanical Engineering, Konkuk University, Seoul 143-701, Republic of Korea;1. Department of Electronics, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, People’s Republic of China;2. Institut National de la Recherche Scientifique-Énergie, Matériaux et Télécommunications, Université du Québec, Varennes QC J3X 1S2, Canada;1. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 5# Xinmofan Road, Nanjing 210009, PR China;2. College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30# Puzhu South Road, Nanjing 211816, PR China;3. College of Chemical Engineering, Nanjing Forest University, 159# Longpan Road, Nanjing 210037, PR China;4. Department of Chemical & Biomolecular Engineering, The University of Akron, Akron, OH 44325-3906, USA;5. Chemical Engineering and Applied Chemistry & European Bioenergy Research Institute, Aston University, Aston Triangle Birmingham B4 7ET, UK;1. Department of Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA;2. Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA;3. Center for Complex Engineered Multifunctional Materials, University of Pittsburgh, PA, 15261, USA;4. US Department of Energy, National Energy Technology Laboratory, Morgantown, WV, 26507, USA;5. Mechanical Engineering and Materials Science, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA;6. School of Dental Medicine, University of Pittsburgh, PA, 15217, USA;1. Applied Energy Technology Center, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China;3. Institute of Unconventional Hydrocarbon and New Energy Sources, China University of Petroleum (East China), Qingdao 266580, PR China |
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| Abstract: | Pt–Cu/reduced graphene oxide (Pt–Cu/RGO) hybrids with different Pt/Cu ratios were prepared by the reduction of H2PtCl6 and CuSO4 by NaBH4 in the presence of graphene oxide (GO). The Pt–Cu nanoparticles were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The reduction of GO was verified by ultraviolet–visible absorption spectroscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. Compared to Pt/RGO, the Pt–Cu/RGO hybrids have superior electrocatalytic activity and stability for the oxidation of methanol and formic acid. Thus they should have potential applications in direct methanol and formic acid fuel cells. |
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