Synergism from interfaces between Cu and crystalline ZrO2 nanosheets fabricated by acetic complex method for oxalates hydrogenation
Ding, J; Liu, YT; Zhang, J; Dong, M; Wang, YX; He, WX; Han, XX; Liu, KF; Jiang, Z; Chen, JG
2017
发表期刊MOLECULAR CATALYSIS
ISSN2468-8231
卷号438期号:-页码:93-102
文章类型期刊论文
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Dimethyl Oxalate Ethylene-glycol Diethyl Oxalate Catalytic Performance Tio2 Nanoparticles Cu/sio2 Catalysts Cu/zro2 Catalysts Ethanol Synthesis Carboxylic-acid Oxide Catalysts
DOI10.1016/j.mcat.2017.05.027
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
收录类别SCI
语种英语
WOS记录号WOS:000406565200011
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28844
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Ding, J,Liu, YT,Zhang, J,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.
APA Ding, J.,Liu, YT.,Zhang, J.,Dong, M.,Wang, YX.,...&Chen, JG.(2017).Synergism from interfaces between Cu and crystalline ZrO2 nanosheets fabricated by acetic complex method for oxalates hydrogenation.MOLECULAR CATALYSIS,438(-),93-102.
MLA Ding, J,et al."Synergism from interfaces between Cu and crystalline ZrO2 nanosheets fabricated by acetic complex method for oxalates hydrogenation".MOLECULAR CATALYSIS 438.-(2017):93-102.
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