Electrodeposited graphene hybridized graphitic carbon nitride anchoring ultrafine palladium nanoparticles for remarkable methanol electrooxidation |
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| Affiliation: | 1. National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Nanchang Hangkong University, Nanchang 330063, PR China;2. Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, PR China;3. Biomass Molecular Engineering Center and Department of Materials Science and Engineering, School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei, Anhui 230036, PR China;1. Department of Chemical Engineering, Faculty of Engineering, The British University in Egypt, Cairo, Egypt;2. Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt;1. Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave.,St. Paul, MN 55108, USA;2. School of Engineering, Anhui Agricultural University, Hefei 230036, China;1. School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China;2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, People’s Republic of China;1. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt;2. Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt;3. Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;4. Chemical Engineering Department, College of Engineering, Jazan University, Jazan, Saudi Arabia;5. Mathematics and Physics Engineering Department, Faculty of Engineering at Mataria, Helwan University, Cairo 11718, Egypt;1. School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China;2. Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, PR China;3. Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China;4. NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia |
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| Abstract: | Exploiting high performance electrocatalysts is crucial for the effective electrooxidation of methanol, although some barriers exist. Herein, we develop a hybrid support composed of graphitic carbon nitride (g-C3N4) and reduced graphene oxide (rGO) synergistically anchoring sufficient ultrafine palladium (Pd) nanoparticles via a simple one-step electrodeposition technique. The morphology and structure were characterized by scanning/transmission electron microscopy, X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy, which confirmed that the Pd nanoparticles were massively and uniformly dispersed on the support of g-C3N4@rGO with a the average particle size of 5.87 nm, deriving from the nitrogen in g-C3N4 contributing to the electron transport highway on the rGO nanosheet layer surface. Furthermore, electrochemical results suggested that the Pd/g-C3N4@rGO showed a high electrocatalytic efficiency for methanol oxidation with a high current density reached 0.131 mA cm?2. Based on a novel approach to the g-C3N4@rGO hybrid nanostructure, this work offers a promising method for the design and synthesis for the superior performance methanol electrocatalyst. |
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| Keywords: | Carbon nitride Graphene Palladium Electrodeposition Electrocatalysis |
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