Macaroon-like FeCo2O4 modified activated carbon anode for enhancing power generation in direct glucose fuel cell |
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| Affiliation: | 1. Tianjin Key Lab. of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin, 300354, PR China;2. College of Food Science and Engineering, Tianjin Agricultural University, Tianjin, 300384, PR China;1. State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum Beijing, 102249, PR China;2. Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum Beijing, 102249, PR China;1. Key Laboratory of Sensor Analysis of Tumor Marker (Ministry of Education), Laboratory of Inorganic Synthesis and Applied Chemistry, Qingdao University of Science and Technology, Qingdao 266042, PR China;2. College of Science and Technology, Agricultural University of Hebei, Cangzhou 061100, China;1. Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, 150001, China;2. College of Food Engineering, Jilin Engineering Normal University, Changchun, 130052, China;3. Institute of Advanced Marine Materials, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China;1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China;2. School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, PR China;1. The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China;2. Lanzhou Research Center of Petrochemicals and Engineering, PetroChina Research, Institute of Petroleum and Petrochemicals, Lanzhou, 730060, China;1. State Key Laboratory of Powder Metallurgy and School of Materials Science and Engineering, Central South University, Changsha, Hunan, 410083, PR China;2. International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan |
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| Abstract: | Macaroon-like FeCo2O4 nanomaterial was prepared and used as electrocatalyst in direct glucose alkaline fuel cell (DGAFC), which exhibited high catalytic activity towards glucose oxidation reaction. Maximum power density of 35.91 W m−2 was achieved in the DGAFC equipped with a FeCo2O4 modified activated carbon (AC) anode, which was almost 151% higher than the control. Physical and electrochemical characterizations were performed to provide further understanding of the origin of its high activity. Our results show that the introduction of FeCo2O4 into the AC anode remarkably increase the exchange current density and reduce the charge transfer resistance. It is supposed that there is a synergistic effect between Fe (III) and Co (III), which accelerates electron transfer from glucose to external circuits. This study will promote the development of cost effective and environmentally benign catalysts for electrochemical energy applications. |
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| Keywords: | Solvothermal method Glucose oxidation Activated carbon |
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