Dantong Zhou

Catalytic CO oxidation over Au nanoparticles loaded nanoporous nickel phosphate composite

Au/nickel phosphate-5 (Au/VSB-5) composite with the noble metal loading amount of 1.43 wt.% is prepared by using microporous VSB-5 nanocrystals as the support. Carbon monoxide (CO) oxidation reaction is carried out over the sample with several catalytic cycles. Complete conversion of CO is achieved at 238°C over the catalyst at the first catalytic cycle. The catalytic activity improved greatly at the second cycle with the complete conversion fulfilled at 198°C and preserved for the other cycles. A series of experiments such as X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), ultraviolet-visible (UV-vis) spectroscopy, and X-ray photoelectron spectroscopy (XPS) are carried out to characterize the catalysts before and after the reaction to study the factors influencing this promotion at the second cycle.

Advanced nanomaterials for energy and environmental applications

1College of Materials Science and Engineering, China Jiliang University, No. 258 Xueyuan Street, Xiasha Higher Education District, Hangzhou, Zhejiang 310018, China 2Department of Chemistry, School of Sciences, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, China 3School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China 4Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854, USA 5Dipartimento di Chimica Inorganica, Metallorganica e Analitica, Unita INSTM, Universita degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy