Methanol and ethanol electrooxidation on Pt and Pd supported on carbon microspheres in alkaline media |
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| Affiliation: | 1. Department of Chemistry and Institute of Nanochemistry, Jinan University, Guangzhou 510632, China;2. State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;1. Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro s/n, Sanfandila, Pedro Escobedo, Qro. C.P. 76703, Mexico;2. Facultad de Ingeniería, División de Investigación y Posgrado, Universidad Autónoma de Querétaro, Centro Universitario Cerro de las Campanas, Querétaro, Qro. C.P. 76010, Mexico;3. Departamento de Ingeniería Química, Universidad de Guanajuato, División de Ciencias Naturales y Exactas, Noria Alta s/n, Col. Noria Alta, Guanajuato, Gto. C.P. 36050, Mexico;1. School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450000, PR China;2. Department of Mechanical and Materials Engineering, The University of Western Ontario, ON, N6A 5B9, Canada;1. Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan;2. Chemistry of Interfaces, Luleå University of Technology, SE-97187, Luleå, Sweden;1. Electrochemistry & Fuel Cell Laboratory, Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711 103, West Bengal, India;2. Department of Chemistry and Biochemistry, University of Bern, Freistrassee 2, Bern 3012, Switzerland;1. Instituto de Materiales y Nanotecnología, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez s/n, 38071 La Laguna, Santa Cruz de Tenerife, Spain;2. Universidad Nacional de Río Cuarto, Ruta Nac. 36, Km 601, Río Cuarto, Córdoba, Argentina |
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| Abstract: | Noble metal (Pt, Pd) electrocatalysts supported on carbon microspheres (CMS) are used for methanol and ethanol oxidation in alkaline media. The results show that noble metal electrocatalysts supported on carbon microspheres give better performance than that supported on carbon black. It is well known that palladium is not a good electrocatalyst for methanol oxidation, but it shows excellently higher activity and better steady-state electrolysis than Pt for ethanol electrooxidation in alkaline media. The results show a synergistic effect by the interaction between Pd and carbon microspheres. The Pd supported on carbon microspheres in this paper possesses excellent electrocatalytic properties and may be of great potential in direct ethanol fuel cells. |
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