Zhendong Wang, Bofeng Zhang, Gang Hou, Guozhu Liu, Xiangwen Zhang
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引用次数: 0
Abstract
A stable and efficient catalytic cycloalkane dehydrogenation process could satisfy the cooling requirement of hypersonic vehicles. But Pt-based catalysts suffer from sintering and coke deposition under high-temperature (>550 °C) reaction conditions. Here, we developed a MgO–TiO2–Al2O3 composite metal oxide anchored subnanometer Pt clusters for cycloalkane dehydrogenation. The doping of alkaline-earth metal ions generates oxygen vacancy defects, which could stabilize highly dispersed Pt clusters and improve the anticoking ability of Pt clusters. The optimized Pt/MTA-10 exhibited a conversion rate of decalin above 56.0%, with the selectivity of naphthalene above 60.0% at a WHSV of 514.7 h–1. This work provides an effective method to synthesize thermally stable metal clusters and significantly broadens the avenues for industrial applications.
期刊介绍：
Energy & Fuels publishes reports of research in the technical area defined by the intersection of the disciplines of chemistry and chemical engineering and the application domain of non-nuclear energy and fuels. This includes research directed at the formation of, exploration for, and production of fossil fuels and biomass; the properties and structure or molecular composition of both raw fuels and refined products; the chemistry involved in the processing and utilization of fuels; fuel cells and their applications; and the analytical and instrumental techniques used in investigations of the foregoing areas.
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