By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Catalysis Research. According to news reporting originating from Hachioji, Japan, by NewsRx correspondents, research stated, "This work aims to develop an efficient catalyst for aerobic glucose oxidation and obtain a clear structure-activity relationship of the catalyst. It is a well-known fact that catalytic sites are located on the surface of the metal, especially at the tops (vertexes) with a high coordination vacancy."
Our news editors obtained a quote from the research from Tokyo Metropolitan University, "By constructing 'crown jewel' Pd/Au (CJ-Pd/Au) nanostructures via a replacement reaction of Pd atoms at active top, sites of the mother cluster with Au ions, we disclose herein a new approach to synthesize a novel Pd/Au catalyst containing an abundance of top Au atoms on a large scale. Tuning the number of the neighboring Pd atoms coordinating with Au atoms at the top position is shown to result in the changes of Au's electronic structure, which leads to significantly enhanced activities for aerobic glucose oxidation of the top Au atoms. The CJ-Pd/Au catalyst showed a very high catalytic activity for glucose oxidation, and the top Au atoms decorating the Pd NCs were 20-30 times more active than the Au atoms of Au NCs with a size of 1.4-nm diameter."
According to the news editors, the research concluded: "The highest catalytic activity of the top Au atoms could be associated with its high negative charge and its unique structure."
For more information on this research see: Crown Jewel catalyst: How neighboring atoms affect the catalytic activity of top Au atoms? Journal of Catalysis, 2013;305():7-18. Journal of Catalysis can be contacted at: Academic Press Inc Elsevier Science, 525 B St, Ste 1900, San Diego, CA 92101-4495, USA. (Elsevier - www.elsevier.com; Journal of Catalysis - www.elsevier.com/wps/product/cws_home/622858)
The news editors report that additional information may be obtained by contacting H.J. Zhang, Tokyo Metropolitan University, Grad Sch Urban Environm Sci, Dept. of Appl Chem, Hachioji, Tokyo 1920397, Japan. Additional authors for this research include T. Watanabe, M. Okumura, M. Haruta and N. Toshima (see also Catalysis Research).
Keywords for this news article include: Asia, Japan, Hachioji, Catalysis Research
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