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Novel spherical TiO2 supported PdNi alloy catalyst for methanol electroxidation
Affiliation:1. School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, PR China;2. Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, United States;1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China;2. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China;1. Division of Advanced Materials Engineering, Hydrogen & Fuel Cell Research Center, Engineering Research Institute, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 561-756, Republic of Korea;2. Department of Materials Engineering, Graduate School, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 561-756, Republic of Korea;3. School of Applied Chemical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea;4. Korea Energy Materials Ltd., 409 Daegu Technopark, 1-11 Hosan-dong, Dalseo-gu, Daegu 704-230, Republic of Korea
Abstract:A novel PdNi/TiO2 electrocatalyst for methanol oxidation is fabricated using spherical TiO2 nanoparticles as support. The structural and electrochemical properties of the PdNi/TiO2 catalyst are characterized by XRD, TEM and electrochemical analysis. The cyclic voltammograms of PdNi/TiO2 catalyst show that there is a large methanol oxidation peak in about 0.882 V that is much bigger than that of the commercial PtRu/C catalyst in 0.7 V. The composite TiO2 material has high catalytic activity without UV light illumination. The electrocatalytic activity and anti-poisoning capability of the PdNi/TiO2 catalyst are promising, which may become a potential candidate for direct methanol fuel cell.
Keywords:Direct methanol fuel cell  Methanol electro-oxidation  Titanium dioxide  Support  Anode catalyst
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