Highly efficient metal-free phosphorus-doped platelet ordered mesoporous carbon for electrocatalytic oxygen reduction |
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| Affiliation: | 1. Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 du CNRS – University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France;2. Hanoi University of Mining and Geology, Dong Ngac, Tu Liem, Hanoi, Viet Nam;1. School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, PR China;2. Department of Chemistry, East China Normal University, Shanghai 200241, PR China;1. School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, PR China;2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China;1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Hubei Key Laboratory of Fuel Cells, Wuhan University of Technology, Wuhan, 430070, China;2. College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, China;3. Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China |
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| Abstract: | Platinum-free electrocatalysts especially, various heteroatom-doped carbon nanostructures have attracted particular attraction as plausible solution for commercializing fuel cell technology. In this direction, novel phosphorus-doped platelet ordered mesoporous carbon (P-pOMC) is developed for the first time as metal-free electrocatalyst for alkaline oxygen reduction reaction. The P-pOMC is synthesized by nanocasting method using platelet ordered mesoporous silica as template. Various characterizations reveal that the P-pOMC materials have covalently bound P atoms with carbon framework for facilitation of oxygen reduction reaction (ORR) and also have very high surface area with uniform distribution of short mesoporous channels for unhindered mass transfer. Combination of P doping and excellent surface properties empowers the newly-developed P-pOMC catalyst to show high ORR activity nearly equal to that of state of the art Pt catalyst along with superior long-term stability and excellent methanol tolerance. |
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