文献类型：期刊文献

英文题名：Sustainable Synthesis of MCM-22 Zeolite as a Catalytic Platform for Propane Dehydrogenation

作者：Yu, Xiaotao[1];Chen, Yuxuan[1];Guo, Min[1];Lu, Song[1];Ying, Jiadi[1];Liu, Tiancun[1];Shen, Qi[1];Wang, Yeqing[1];Yu, Zhixin[1]

机构：[1]Shaoxing Univ, Inst New Energy, Coll Chem & Chem Engn, Shaoxing 312000, Peoples R China

年份：2025

卷号：64

期号：7

起止页码：3266

外文期刊名：INORGANIC CHEMISTRY

收录：SCI-EXPANDED(收录号：WOS:001421075600001)、、EI(收录号：20250717869164)、Scopus(收录号：2-s2.0-85217555380)、WOS

基金：This work was supported by the National Natural Science Foundation of China (22472100) and the Scientific Research Fund of the Zhejiang Provincial Education Department (Y202248442).

语种：英文

外文关键词：Catalyst selectivity - Hydrothermal synthesis - Impregnation

外文摘要：The significant volume of solvent required for the hydrothermal synthesis of zeolites remains the primary hurdle impeding industrial applications. With the benefits of reduced manufacturing costs, safety, and energy savings, reducing the use of solvents is one of the significant sought-after objectives. In this study, borosilicate zeolite B-MCM-22 is successfully obtained using a solvent-free synthesis method. The as-synthesized sample exhibits good long-range order, high crystallinity, and high silica utilization (ca. 95%). Furthermore, the B-MCM-22 precursor serves as a platform for introducing Co active sites via deboronization and impregnation processes. The resulting Co-MCM-22-DB catalyst provides a propylene selectivity of >90% with an initial propane conversion of 38% in the propane dehydrogenation reaction and shows a higher initial catalytic performance than the Co/ITQ-1 catalyst. The essential interplay between the metal-support interaction and catalytic performance is demonstrated by ultraviolet-visible (UV-vis), H2-TPR, and catalytic assessments, further elucidating that Co2+ species are the active sites for propane to propylene conversion. We anticipate that B-MCM-22 will be a versatile and ideal platform for catalyst design through structural manipulation.