Researches on chemically modified electrode. XIX. preparation of iron protoporphyrin film electrode by electrochemical polymerization and its catalysis |
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| Affiliation: | 1. CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. College of Materials Science and Engineering, Hebei University of Engineering, 199 South Guangming Street, Handan 056038, China;4. Hunan Engineering and Technology Research Center for Grapes, Hunan Agricultural University, Changsha, China;1. Energy Efficient Materials Team, Energy & Environmental Division, Korea Institute of Ceramic Engineering and Technology (KICET), Soho-Ro 101, Jinju-Si, Gyeongnam, 52851, Republic of Korea;2. Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul, 136-713, Republic of Korea;1. School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom;2. School of Chemistry, University of Southampton, Highfield, University Road, Southampton SO17 1BJ, United Kingdom;3. Energy and Bioproducts Research Institute, College of Engineering & Physical Sciences, Aston University, B4 7ET Birmingham, United Kingdom;1. College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, PR China;2. Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China |
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| Abstract: | Using cyclic voltammetry the electrochemical polymerization of protoporphyrin (PP) and iron protoporphyrin (FePP) was investigated as radical cationic vinyl polymerization. A number of factors, such as electrode potential, temperature, and concentration of monomers in solution, may affect the rate of polymerization. The polymerized porphyrin film on electrode surface was analyzed with electronic scanning microscope, UV-visible spectroscope, and ESCA. The electrochemically polymerized FePP film glassy carbon electrode (poly(FePP)/GC) exhibits very high catalytic activity for dioxygen reduction in aqueous solution to water as a four-electron irreversible process. |
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