Dominic Walter , Jonathan Hackebeil , Conrad Hübler , Erik Schumann , Andreas Lißner , Bianca Störr , Mykhaylo Motylenko , David Rafaja , Florian Mertens
{"title":"Deactivation of Cu/ZnO/Al2O3 catalysts by sintering in liquid phase assisted methanol synthesis from CO2/H2 and a way to counteract it","authors":"Dominic Walter , Jonathan Hackebeil , Conrad Hübler , Erik Schumann , Andreas Lißner , Bianca Störr , Mykhaylo Motylenko , David Rafaja , Florian Mertens","doi":"10.1016/j.jcat.2024.115829","DOIUrl":null,"url":null,"abstract":"<div><div>The sintering process on Cu/ZnO/Al<sub>2</sub>O<sub>3</sub> catalysts in the heterogeneous liquid phase assisted methanol synthesis from CO<sub>2</sub>/H<sub>2</sub> was investigated. In order to better understand the sintering event, in addition to standard methods (XRD, XPS, BET, ICP-OES) microscopic techniques with different magnifications such as SEM-EDX, AFM, and TEM were used. Water has been identified as the sintering agent. In addition to eliminating water with CO, another way was found to remove water from the catalyst surface and therefore to counteract the sintering during catalysis. This goal can be achieved by using highly polar solvents allowing to synthesize MeOH solely from carbon dioxide and hydrogen, without deactivating the catalyst or using carbon monoxide.</div></div>","PeriodicalId":346,"journal":{"name":"Journal of Catalysis","volume":"440 ","pages":"Article 115829"},"PeriodicalIF":6.5000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Catalysis","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0021951724005426","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The sintering process on Cu/ZnO/Al2O3 catalysts in the heterogeneous liquid phase assisted methanol synthesis from CO2/H2 was investigated. In order to better understand the sintering event, in addition to standard methods (XRD, XPS, BET, ICP-OES) microscopic techniques with different magnifications such as SEM-EDX, AFM, and TEM were used. Water has been identified as the sintering agent. In addition to eliminating water with CO, another way was found to remove water from the catalyst surface and therefore to counteract the sintering during catalysis. This goal can be achieved by using highly polar solvents allowing to synthesize MeOH solely from carbon dioxide and hydrogen, without deactivating the catalyst or using carbon monoxide.
期刊介绍：
The Journal of Catalysis publishes scholarly articles on both heterogeneous and homogeneous catalysis, covering a wide range of chemical transformations. These include various types of catalysis, such as those mediated by photons, plasmons, and electrons. The focus of the studies is to understand the relationship between catalytic function and the underlying chemical properties of surfaces and metal complexes.
The articles in the journal offer innovative concepts and explore the synthesis and kinetics of inorganic solids and homogeneous complexes. Furthermore, they discuss spectroscopic techniques for characterizing catalysts, investigate the interaction of probes and reacting species with catalysts, and employ theoretical methods.
The research presented in the journal should have direct relevance to the field of catalytic processes, addressing either fundamental aspects or applications of catalysis.
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
