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题名: Synergism from interfaces between Cu and crystalline ZrO2 nanosheets fabricated by acetic complex method for oxalates hydrogenation
作者: Ding, Jian1;  Liu, Yanting2, 3;  Zhang, Juan2;  Dong, Mei2;  Wang, Yaxiong1;  He, Wenxiu1;  Han, Xiaoxing1;  Liu, Kefeng4;  Jiang, Zheng5;  Chen, Jiangang2
关键词: Oxalate hydrogenation ;  Cu/ZrO2 catalyst ;  Acetic complex method ;  Dielectric constant ;  Synergistic effect
刊名: MOLECULAR CATALYSIS
发表日期: 2017-09-01
DOI: 10.1016/j.mcat.2017.05.027
卷: 438, 页:93-102
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Herein, the Cu species uniformly combining with highly crystalline ZrO2 nanosheets had been prepared by a one-pot acetic complex method. The selectivity to ethylene glycol of 98.9%, which corresponds to 99.8% conversion of diethyl oxalate was obtained over the one prepared by using acetic acid (AC) both as the complex agent and solvent. In addition, a stable performance was achieved (life span of >160 h). It also showed good performance in hydrogenation of dimethyl oxalate (95.7 h(-1) turnover frequency). Essentially, solvents with different dielectric constant employed in complexation process had a prominent influence on the structure and catalytic activity of Cu/ZrO2 catalyst via solvation. Besides, complexation process was also important since AC could be regarded as L-type ligands in a low dielectric constant solvent, forming of ion-clusters which resulted in exclusive formation of the Cu-O-Zr interface after calcination. Evidently, the surface synergistic effect held the key to the continuous hydrogenation reaction related to the activation of the carbonyl groups and the hydrogen dissociation, thus creating a synergetic nanoenvironment for the successful completion of the "multi step turning into one-step" in the series reaction. (C) 2017 Elsevier B.V. All rights reserved.
关键词[WOS]: DIMETHYL OXALATE ;  ETHYLENE-GLYCOL ;  DIETHYL OXALATE ;  CATALYTIC PERFORMANCE ;  TIO2 NANOPARTICLES ;  CU/SIO2 CATALYSTS ;  CU/ZRO2 CATALYSTS ;  ETHANOL SYNTHESIS ;  CARBOXYLIC-ACID ;  OXIDE CATALYSTS
语种: 英语
WOS记录号: WOS:000406565200011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149802
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Inner Mongolia, Peoples R China
2.Chinese Acad Sci, Shanxi Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
4.PetroChina Co Ltd, Petrochem Res Inst, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

Recommended Citation:
Ding, Jian,Liu, Yanting,Zhang, Juan,et al. Synergism from interfaces between Cu and crystalline ZrO2 nanosheets fabricated by acetic complex method for oxalates hydrogenation[J]. MOLECULAR CATALYSIS,2017,438:93-102.
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