10.1021/acscatal.7b04327.s001 Houlin Wang Houlin Wang Minghan Liu Minghan Liu Yue Ma Yue Ma Ke Gong Ke Gong Wei Liu Wei Liu Rui Ran Rui Ran Duan Weng Duan Weng Xiaodong Wu Xiaodong Wu Shuang Liu Shuang Liu Simple Strategy Generating Hydrothermally Stable Core–Shell Platinum Catalysts with Tunable Distribution of Acid Sites American Chemical Society 2018 hydrothermal stability acid sites C 3 H 8 oxidation acidic Pt catalyst strategy N 2 selectivity platinum catalysts core tunable structure SiO 2 alumination Acid Sites mechanism exploration Tunable Distribution 2018-02-22 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Simple_Strategy_Generating_Hydrothermally_Stable_Core_Shell_Platinum_Catalysts_with_Tunable_Distribution_of_Acid_Sites/5930587 There are critical needs for platinum catalysts with high hydrothermal stability and tunable Pt–acid site proximity, which could not be achieved via traditional methods. Here, we describe a simple strategy (SiO<sub>2</sub> alumination combined with controlled removal of the capping agent) through which Pt-based core–shell catalysts that tolerant both high-temperature steam and boiling water can be obtained. More importantly, this strategy allows precise control of the distance between acid sites and Pt; thus, the interfacial electronic interaction can be cut off without prohibiting the spillover of adsorbed species. This tunable structure not only helps to unravel the mechanism of C<sub>3</sub>H<sub>8</sub> oxidation over acidic Pt catalyst but also increases the N<sub>2</sub> selectivity for NO<sub><i>x</i></sub> selective catalytic reduction. Given that the component of both the “core” and “shell” can be changed easily, this strategy should have wide application in mechanism exploration as well as the development of catalysts for various reactions.