{"title":"The effect of support on RhFe/Al2O3 for ethanol synthesis via CO hydrogenation","authors":"Fang Li, Weixing Qian","doi":"10.1007/s13203-021-00277-9","DOIUrl":null,"url":null,"abstract":"<div><p>Different alumina samples prepared with sol–gel, chemical precipitation and hydrothermal synthesis were used as supports of Fe-promoted Rh-based catalysts for ethanol synthesis via CO hydrogenation. The samples were characterized by means of N<sub>2</sub>-adsorpotion, XRD, H<sub>2</sub>-TPR, XPS, STEM, H<sub>2</sub>-TPD, DRIFTS, H<sub>2</sub> and CO chemisorption. The results indicated that the Al<sub>2</sub>O<sub>3</sub> prepared by hydrothermal synthesis exhibited nano-fiber morphology and constituted of mixed crystal phases, while Al<sub>2</sub>O<sub>3</sub> prepared by sol–gel and chemical precipitation shows no changes of morphology and crystal phases compared with the commercial Al<sub>2</sub>O<sub>3</sub>. In addition, nano-fiber Al<sub>2</sub>O<sub>3</sub>-supported Rh-based catalyst shows higher ethanol selectivity, which is ascribed to the lower metal–support interaction, higher dispersion and stronger CO insertion ability.</p></div>","PeriodicalId":472,"journal":{"name":"Applied Petrochemical Research","volume":null,"pages":null},"PeriodicalIF":0.1250,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s13203-021-00277-9","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Petrochemical Research","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s13203-021-00277-9","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Different alumina samples prepared with sol–gel, chemical precipitation and hydrothermal synthesis were used as supports of Fe-promoted Rh-based catalysts for ethanol synthesis via CO hydrogenation. The samples were characterized by means of N2-adsorpotion, XRD, H2-TPR, XPS, STEM, H2-TPD, DRIFTS, H2 and CO chemisorption. The results indicated that the Al2O3 prepared by hydrothermal synthesis exhibited nano-fiber morphology and constituted of mixed crystal phases, while Al2O3 prepared by sol–gel and chemical precipitation shows no changes of morphology and crystal phases compared with the commercial Al2O3. In addition, nano-fiber Al2O3-supported Rh-based catalyst shows higher ethanol selectivity, which is ascribed to the lower metal–support interaction, higher dispersion and stronger CO insertion ability.
期刊介绍：
Applied Petrochemical Research is a quarterly Open Access journal supported by King Abdulaziz City for Science and Technology and all the manuscripts are single-blind peer-reviewed for scientific quality and acceptance. The article-processing charge (APC) for all authors is covered by KACST. Publication of original applied research on all aspects of the petrochemical industry focusing on new and smart technologies that allow the production of value-added end products in a cost-effective way. Topics of interest include: • Review of Petrochemical Processes • Reaction Engineering • Design • Catalysis • Pilot Plant and Production Studies • Synthesis As Applied to any of the following aspects of Petrochemical Research: -Feedstock Petrochemicals: Ethylene Production, Propylene Production, Butylene Production, Aromatics Production (Benzene, Toluene, Xylene etc...), Oxygenate Production (Methanol, Ethanol, Propanol etc…), Paraffins and Waxes. -Petrochemical Refining Processes: Cracking (Steam Cracking, Hydrocracking, Fluid Catalytic Cracking), Reforming and Aromatisation, Isomerisation Processes, Dimerization and Polymerization, Aromatic Alkylation, Oxidation Processes, Hydrogenation and Dehydrogenation. -Products: Polymers and Plastics, Lubricants, Speciality and Fine Chemicals (Adhesives, Fragrances, Flavours etc...), Fibres, Pharmaceuticals.
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