{"title":"Ni0 dominated Ni/MgAl-LDO catalyst for highly efficient reductive amination of acetone to isopropylamine","authors":"","doi":"10.1016/j.apcata.2024.119885","DOIUrl":null,"url":null,"abstract":"<div><p>The direct amination of alcohols (ketones) with ammonia to primary amines is a promising route. In this work, an environmentally friendly and efficient method for the synthesis of isopropylamine from the reductive amination of acetone over hydrotalcite-derived Ni/MgAl-LDO catalyst was successfully developed. The results demonstrated that the 12 %Ni/MgAl-LDO catalyst showed outstanding catalytic activity and stability, and 99.8 % of acetone conversion with 93.4 % of isopropylamine selectivity was still maintained over 100 h at 120 °C. The characterization results verified that 12 %Ni/MgAl-LDO catalyst possessed the highly dispersed and uniform Ni nanoparticles, which were responsible for its outstanding catalytic activity and stability. Futhermore, the DFT calculations results indicated that Ni sites of Ni (1 1 1) facet were acted as the catalytic active sites for reductive amination of acetone. This study provides a simple, low-cost and efficient approach for the production of isopropylamine, with promising prospects for industrial applications.</p></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis A: General","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926860X24003302","RegionNum":2,"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 direct amination of alcohols (ketones) with ammonia to primary amines is a promising route. In this work, an environmentally friendly and efficient method for the synthesis of isopropylamine from the reductive amination of acetone over hydrotalcite-derived Ni/MgAl-LDO catalyst was successfully developed. The results demonstrated that the 12 %Ni/MgAl-LDO catalyst showed outstanding catalytic activity and stability, and 99.8 % of acetone conversion with 93.4 % of isopropylamine selectivity was still maintained over 100 h at 120 °C. The characterization results verified that 12 %Ni/MgAl-LDO catalyst possessed the highly dispersed and uniform Ni nanoparticles, which were responsible for its outstanding catalytic activity and stability. Futhermore, the DFT calculations results indicated that Ni sites of Ni (1 1 1) facet were acted as the catalytic active sites for reductive amination of acetone. This study provides a simple, low-cost and efficient approach for the production of isopropylamine, with promising prospects for industrial applications.
期刊介绍:
Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications.
Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.