文献类型：期刊文献

英文题名：¹³C NMR Guides Rational Design of Nanocatalysts via Chemisorption Evaluation in Liquid Phase

作者：Tedsree, Karaked[1];Chan, Chun Wong Aaron[1];Jones, Simon[1];Cuan, Qian[2];Li, Wei-Kun[2];Gong, Xue-Qing[2];Tsang, Shik Chi Edman[1]

机构：[1]Univ Oxford, Dept Chem, Wolfson Catalysis Ctr, Oxford OX1 3QR, England;[2]E China Univ Sci & Technol, Res Inst Ind Catalysis, Labs Adv Mat, Shanghai 200237, Peoples R China

年份：2011

卷号：332

期号：6026

起止页码：224

外文期刊名：SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000289251100048)】；

基金：The financial support of this work from the Engineering and Physical Sciences Research Council of the United Kingdom is acknowledged. The authors thank N. Rees, K. Yu, and A. Kong for technical assistance; K. Harrison of Oxford for providing simulated images; and B. Murrer and P. Collier of Johnson Matthey Technology Centre, UK, for helpful discussions. Support to the East China University of Science and Technology group from the 111 project is also acknowledged.

语种：英文

摘要：The search for more efficient heterogeneous catalysts remains critical to the chemical industry. The Sabatier principle of maximizing catalytic activity by optimizing the adsorption energy of the substrate molecule could offer pivotal guidance to otherwise random screenings. Here we show that the chemical shift value of an adsorbate (formic acid) on metal colloid catalysts measured by C-13 nuclear magnetic resonance (NMR) spectroscopy in aqueous suspension constitutes a simple experimental descriptor for adsorption strength. Avoiding direct contact between the C-13 atom and the metal surface eliminates peak broadening that has confounded prior efforts to establish such correlations. The data can guide rational design of improved catalysts, as demonstrated here for the cases of formic acid decomposition and formic acid electro-oxidation reactions.