Zhendong Wang, Bofeng Zhang, Gang Hou, Guozhu Liu, Xiangwen Zhang
{"title":"锚定在镁-铝-钛复合金属氧化物上的热稳定性铂团簇用于高效环烷烃脱氢反应","authors":"Zhendong Wang, Bofeng Zhang, Gang Hou, Guozhu Liu, Xiangwen Zhang","doi":"10.1021/acs.energyfuels.4c02825","DOIUrl":null,"url":null,"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–TiO<sub>2</sub>–Al<sub>2</sub>O<sub>3</sub> 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<sup>–1</sup>. This work provides an effective method to synthesize thermally stable metal clusters and significantly broadens the avenues for industrial applications.","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 1","pages":""},"PeriodicalIF":5.2000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thermally Stable Pt Clusters Anchored on Mg–Al–Ti Composite Metal Oxide for Efficient Cycloalkane Dehydrogenation\",\"authors\":\"Zhendong Wang, Bofeng Zhang, Gang Hou, Guozhu Liu, Xiangwen Zhang\",\"doi\":\"10.1021/acs.energyfuels.4c02825\",\"DOIUrl\":null,\"url\":null,\"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–TiO<sub>2</sub>–Al<sub>2</sub>O<sub>3</sub> 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<sup>–1</sup>. This work provides an effective method to synthesize thermally stable metal clusters and significantly broadens the avenues for industrial applications.\",\"PeriodicalId\":35,\"journal\":{\"name\":\"Energy & Fuels\",\"volume\":\"39 1\",\"pages\":\"\"},\"PeriodicalIF\":5.2000,\"publicationDate\":\"2024-09-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Energy & Fuels\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.energyfuels.4c02825\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy & Fuels","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1021/acs.energyfuels.4c02825","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Thermally Stable Pt Clusters Anchored on Mg–Al–Ti Composite Metal Oxide for Efficient Cycloalkane Dehydrogenation
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.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
