DICP OpenIR
Effect of noble metal on selective hydrogenation of cinnamaldehyde over cobalt-based catalyst
Liu, BJ; Xiong, GX; Pan, XL; Sheng, SS; Yang, WS
关键词Platinum Palladium Ruthenium Alumina Cobalt-based Catalyst Cinnamaldehyde Selective Hydrogenation Cinnamyl Alcohol
刊名CHINESE JOURNAL OF CATALYSIS
2002-09-01
23期:5页:481-484
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
关键词[WOS]PT-SN CATALYSTS ; ALPHA,BETA-UNSATURATED ALDEHYDES ; UNSATURATED ALDEHYDES ; PHASE HYDROGENATION ; CROTONALDEHYDE
英文摘要gamma-Al2O3 was used as a support, and Co/gamma-Al2O3 catalyst was prepared by wet impregnation from precursor CoCl2 together with KOH. H2PtCl6, PdCl2 and RuCl3 were used to modify the cobalt-based catalyst, and the catalyst precursor was dried at 210 degreesC and calcined at 450 degreesC for 3 h. Before used, the catalyst samples were reduced at 450 degreesC by hydrogen flow (30 ml/min) for 3 h. The selective hydrogenation of cinnamaldehyde (V(EtOH)/V(PhCH:CHCHO) = 9) was performed in a stainless steel autoclave with magnetic stirring. After covering, the air was replaced by hydrogen. The activity and selectivity of Co/gamma-Al2O3 increased with the Co-loading when it is less than 9% and only showed a small increment when it is more than 9%. Selective hydrogenation of cinnamaldehyde over Co/Al2O3 catalyst modified by noble matels was studied. The activity of Co-Pt/Al2O3 catalyst is straightly increased with Pt content when it is lower than 0.5% and was 5 times that of Co/Al2O3 when Pt loading reaches 0.5%. The activity of Co-Pd/Al2O2 and Co-Ru/Al2O3 increased, but their selectivity decreased to 0.3% and 83.8%, respectively. Only the selectivity of Co-Pt/Al2O3 was higher than 95% when the Pt loading is 0.5%. It is due to the interaction of Co and Pt. The XRD result showed that the Co3O4 in the modified catalyst was reduced to alpha-Co-0. The TPR result showed that the presence of small amount of noble metals promotes the reduction Of Co3O4 in the catalyst, and the reduction temperature Of Co3O4 decreased with noble metal loading obviously. The XPS result indicated that the Co3O4 in Co-Pt/Al2O3 with small amount of Pt can be reduced to Co-0, but can only be reduced to Co-0 partially in Co-Pd/Al2O3 and Co-Ru/Al2O3, and the other Co species is CoO. So, the Co-0 amount on the catalyst surface can not be correlated with the activity.
语种英语
WOS记录号WOS:000178634300023
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139191
专题中国科学院大连化学物理研究所
作者单位1.Inst Petr, CNPC, Key Lab Catalysis, Beijing 102249, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式
GB/T 7714
Liu, BJ,Xiong, GX,Pan, XL,et al. Effect of noble metal on selective hydrogenation of cinnamaldehyde over cobalt-based catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2002,23(5):481-484.
APA Liu, BJ,Xiong, GX,Pan, XL,Sheng, SS,&Yang, WS.(2002).Effect of noble metal on selective hydrogenation of cinnamaldehyde over cobalt-based catalyst.CHINESE JOURNAL OF CATALYSIS,23(5),481-484.
MLA Liu, BJ,et al."Effect of noble metal on selective hydrogenation of cinnamaldehyde over cobalt-based catalyst".CHINESE JOURNAL OF CATALYSIS 23.5(2002):481-484.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liu, BJ]的文章
[Xiong, GX]的文章
[Pan, XL]的文章
百度学术
百度学术中相似的文章
[Liu, BJ]的文章
[Xiong, GX]的文章
[Pan, XL]的文章
必应学术
必应学术中相似的文章
[Liu, BJ]的文章
[Xiong, GX]的文章
[Pan, XL]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。