Knowledge Management System Of Institute of process engineering,CAS
| Selective oxidation of monoethanolamine to glycine over supported gold catalysts: The influence of support and the promoting effect of polyvinyl alcohol | |
| Meng, Xiangzhan1,2; Bai, Yinge2; Xu, Haiyang2,3; Zhang, Yongqiang2; Li, Chunshan2; Wang, Hui2; Li, Zengxi1 | |
| 2019-05-01 | |
| Source Publication | MOLECULAR CATALYSIS
 |
| ISSN | 2468-8231 |
| Volume | 469Pages:131-143 |
| Abstract | 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%. |
| Keyword | Au nanoparticles MEA oxidation Glycine Polyvinyl alcohol Promoting effect |
| DOI | 10.1016/j.mcat.2019.03.011 |
| Language | 英语 |
| WOS Keyword | AEROBIC OXIDATION ; GLYCEROL OXIDATION ; PHASE-EQUILIBRIA ; CO OXIDATION ; ACID ; NANOPARTICLES ; ALKYLATION ; STABILITY ; KINETICS ; AU/TIO2 |
| Funding Project | 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 Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| Funding Organization | 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 |
| WOS ID | WOS:000466253900014 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/28217 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Hui; Li, Zengxi |
| Affiliation | 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 |
| Recommended Citation 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. |
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