简介: |
个人简介:
José Luís Figueiredo (PhD, Imperial College, London, UK, 1975) is a full professor of chemical engineering at the faculty of engineering, University of Porto, Portugal, and director of the laboratory of catalysis and materials (LCM). Most of his research has been focused in the areas of carbon materials and heterogeneous catalysis. He is a member of the Editorial Board of the journals CARBON and Fuel Processing Technology (Elsevier), and Periodica Polytechnica-Chemical Engineering (University of Budapest).
José L. Figueiredo* Laboratory of Catalysis and Materials - Associate Laboratory LSRE/LCM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal * email: jlfig@fe.up.pt
报告摘要:
The surface chemical properties of carbon materials are of paramount importance for their applications, particularly in catalysis. The structure of most carbons used in catalysis is graphenic, the unsaturated carbon atoms at the edges of the graphene layers and at basal plane defects being able to react with different compounds to form various types of surface functional groups. The nature and concentration of these groups can be modified by chemical and thermal treatments, or during the synthesis steps. X-ray photoelectron spectroscopy (XPS) and temperature programmed desorption (TPD) are the most suitable methods for their assessment. These surface functional groups can be used to anchor molecular catalysts (heterogenization of homogeneous catalysts) or catalyst precursors (preparation of well dispersed supported metal catalysts); in addition, they may be active sites for specific catalytic reactions.Indeed, carbon materials can be used as metal-free catalysts in acid-base or in redox processes. Examples of application of carbon materials as catalysts, catalyst supports or catalyst modifiers will be reviewed, focusing on the research done in the author’s group and emphasizing the role of the surface chemistry in each case.
References 1) Serp P, Figueiredo JL (editors). Carbon Materials for Catalysis. John Wiley, Hoboken, NJ, 2009. 2) Figueiredo JL, Pereira MFR, Catal. Today, 2010; 150: 2-7. 3) Figueiredo JL, J. Mater. Chem. A, 2013; 1: 9351-9364. 4) Figueiredo JL, Pereira MFR, Freitas MMA, Órfão JJM, Carbon, 1999; 37: 1379-1389.
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