文献类型：期刊文献

英文题名：Constructing tri-coordinated Al (AlIII) sites to boost complete propane oxidation of the Pt/Al2O3 catalyst

作者：You, Yang[1,2];Xu, Aijie[2];Lv, Yao[1];Yang, Lide[3];Tang, Xuan[1,2];Tang, Jie[3];Guo, Yanglong[2];Cui, Yao[3];Zhan, Wangcheng[2];Wang, Li[2];Guo, Yun[2];Dai, Sheng[1,2]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Res Inst Ind Catalysis, Sch Chem & Mol Engn, State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[3]Shanghai HuaYi New Mat Co Ltd, Shanghai 201507, Peoples R China

年份：2024

卷号：14

期号：14

起止页码：4058

外文期刊名：CATALYSIS SCIENCE & TECHNOLOGY

收录：;EI(收录号：20242616349250);WOS:【SCI-EXPANDED(收录号:WOS:001252110400001)】；

基金：This work was supported by the National Key Research and Development Program of China (2022YFB3504200), the National Natural Science Foundation of China (U21A20326, 21976057, 22273021, 22376062, and 22076047), the Fundamental Research Funds for the Central Universities, China Postdoctoral Science Foundation (2022M721144), the Science and Technology Commission of Shanghai Municipality (22ZR1415700), Shanghai Post-doctoral Excellence Program (2022165) and Shanghai Sailing Program (23YF1409100). Additional support was provided by the Frontiers Science Center for Materiobiology and Dynamic Chemistry and the Feringa Nobel Prize Scientist Joint Research Center. The authors also thank the Research Center of Analysis and Test at ECUST for technique support.

语种：英文

外文关键词：Alumina - Aluminum oxide - Catalysts - Dispersions - Emission control - Oxidation - Paraffins - Platinum - Platinum compounds - Volatile organic compounds

摘要：Complete oxidation of propane has drawn great attention in the fields of automotive emission control and volatile organic compound elimination. However, it is challenging to achieve high activity of this reaction due to the stability of propane. We here utilize a facile solvothermal method to construct tri-coordinated Al (Al-III) sites on the as-synthesized ST-Al2O3 support to alter the properties of supported Pt species. It is demonstrated that Al-III sites facilitate the dispersion and electron enrichment of supported Pt sites. Thus, Pt/ST-Al2O3 exhibits a superior activity toward complete propane oxidation, showing a 6.7-fold improvement in the turnover frequency over commercial Pt/Al2O3 catalysts. Meanwhile, Pt/ST-Al2O3 possesses a distinct reaction route originating from its stronger C-H and C-C cleavage capability, while having excellent activity not only in complete propane oxidation but also in the complete oxidation of other alkanes (CH4, C2H6, and n-C4H10). In addition, the Al-III construction strategy is successfully extended to more cases, e.g., Pd/ST-Al2O3 with higher Pd dispersion and electron density. This work provides a promising strategy for the control of the oxide support for advanced design and synthesis of alkane oxidation catalysts.