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题名: Effect of promoters on structure and performance of activated carbon-supported Wacker-type catalysts for synthesis of dimethyl carbonate
作者: Yang, P;  Cao, Y;  Bao, XH;  Dai, WL;  Fan, KN
关键词: Wacker-type catalyst ;  palladium chloride ;  copper chloride ;  dimethyl carbonate ;  potassium acetate ;  methanol ;  oxidative carbonylation
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2004-12-01
卷: 25, 期:12, 页:995-999
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Activated carbon-supported Wacker-type catalysts (PdCl2-CuCl2) were prepared by using salts and hydrates of alkali and alkaline earth metals as promoters. It is revealed that the catalyst modified by KOAc exhibited the best catalytic performance in dimethyl carbonate (DMC) synthesis by oxidative carbonylation of methanol. The space-time yield (STY) of DMC over the catalyst with KOAc/CuCl2 = 1.0 was six timer the STY over the unmodified catalyst. The results of XRD, SEM and EPR suggested that a proper amount of KOAc was in favor of the formation and dispersion of Cu2Cl(OH)(3) species. and therefore the redox cycle of active Cu and Pd species was expedited.
关键词[WOS]: CO OXIDATION ;  CU CATALYSTS ;  PD ;  CARBONYLATION ;  METHANOL ;  ETHYLENE ;  ALUMINA
语种: 英语
WOS记录号: WOS:000226325900014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139282
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.E China Normal Univ, Dept Chem, Shanghai 200062, Peoples R China
2.Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Yang, P,Cao, Y,Bao, XH,et al. Effect of promoters on structure and performance of activated carbon-supported Wacker-type catalysts for synthesis of dimethyl carbonate[J]. CHINESE JOURNAL OF CATALYSIS,2004,25(12):995-999.
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