Selective oxidation of monoethanolamine to glycine over supported gold catalysts: The influence of support and the promoting effect of polyvinyl alcohol
文献类型：期刊论文
| 作者 | Meng, Xiangzhan1,2; Bai, Yinge2; Xu, Haiyang2,3; Zhang, Yongqiang2; Li, Chunshan2; Wang, Hui2; Li, Zengxi1 |
| 刊名 | MOLECULAR CATALYSIS
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 469页码:131-143 |
| 关键词 | Au nanoparticles MEA oxidation Glycine Polyvinyl alcohol Promoting effect |
| ISSN号 | 2468-8231 |
| DOI | 10.1016/j.mcat.2019.03.011 |
| 英文摘要 | Glycine is an important fine chemical used in many fields, and the traditional synthetic methods like Strecker synthesis and ammoniation of chloroacetic acid use highly toxic reagents or produce equal molar byproducts. Herein, selective aerobic oxidation of monoethanolamine (MEA) to glycine using Au catalysts supported on various supports, including Al2O3, SiO2, TiO2,ZnO,andZrO(2), was investigated and the correlation between acid-base properties of the catalysts and catalytic performance was established. Catalysts with higher base content exhibited higher initial activity and that with lower acid content gave higher glycine selectivity. The influence of preparation methods was revealed using Au/ZrO2 with the best catalytic performance and it was demonstrated that the presence of polyvinyl alcohol (PVA) has a significant promoting effect. In-situ FTIR and H-1 NMR analysis revealed that the hydrogen bonds between PVA and MEA can enhance adsorption of MEA on catalysts, resulting in doubled turnover frequency (TOF) and improved MEA conversion; and the preferential hydrogen bonds between the amino group of MEA and the hydroxyl of PVA can prevent the coordination of amino group with Au nanoparticles, favoring reaction of the hydroxyl group of MEA on the active sites, accounting for the enhanced glycine selectivity. The reaction conditions were optimized and the optimal yield of glycine was 95%. |
| WOS关键词 | AEROBIC OXIDATION ; GLYCEROL OXIDATION ; PHASE-EQUILIBRIA ; CO OXIDATION ; ACID ; NANOPARTICLES ; ALKYLATION ; STABILITY ; KINETICS ; AU/TIO2 |
| 资助项目 | General Program Youth of National Natural Science Foundation of China[21603232] ; National Natural Science Foundation of China[21676270] ; National Natural Science Foundation of China[21676277] ; Project of CAS-Hengshui Science & Technology Transfer Center ; CAS Pioneer Hundred Talents Program ; K.C.Wong Education Foundation[GJTD-2018-04] ; National Key R&D Program of China[2017YFB0603301] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000466253900014 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | General Program Youth of National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of CAS-Hengshui Science & Technology Transfer Center ; CAS Pioneer Hundred Talents Program ; K.C.Wong Education Foundation ; National Key R&D Program of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28217]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Hui; Li, Zengxi |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst,CAS Key Lab, Beijing 100190, Peoples R China 3.Tianjin Univ Sci & Technol, Coll Papermalcing Sci & Technol, Tianjin 300457, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Xiangzhan,Bai, Yinge,Xu, Haiyang,et al. Selective oxidation of monoethanolamine to glycine over supported gold catalysts: The influence of support and the promoting effect of polyvinyl alcohol[J]. MOLECULAR CATALYSIS,2019,469:131-143. |
| APA | Meng, Xiangzhan.,Bai, Yinge.,Xu, Haiyang.,Zhang, Yongqiang.,Li, Chunshan.,...&Li, Zengxi.(2019).Selective oxidation of monoethanolamine to glycine over supported gold catalysts: The influence of support and the promoting effect of polyvinyl alcohol.MOLECULAR CATALYSIS,469,131-143. |
| MLA | Meng, Xiangzhan,et al."Selective oxidation of monoethanolamine to glycine over supported gold catalysts: The influence of support and the promoting effect of polyvinyl alcohol".MOLECULAR CATALYSIS 469(2019):131-143. |
入库方式： OAI收割
来源：过程工程研究所
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