Activity and selectivity of noble metal colloids for the hydrogenation of polyunsaturated soybean oil
文献类型：期刊论文
| 作者 | Choo, HP; Liew, KY; Liu, HF; Seng, CE; Mahmood, WAK; Bettahar, M |
| 刊名 | JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
 |
| 出版日期 | 2003-01-02 |
| 卷号 | 191期号:1页码:113-121 |
| 关键词 | Hydrogenation Soybean Oil Pt And Pd Nanocolloids Isomerization |
| ISSN号 | 1381-1169 |
| 英文摘要 | Polyvinylpyrrolidone stabilized Pt and Pd colloids with mean particle sizes ranging from 1.5 to 3.1 nm were prepared and are effective catalysts for the selective hydrogenation of polyunsaturated soybean oil at 35 degreesC and atmospheric pressure. The rate constants for the three stages of hydrogenation from linoleneate to linoleate to oleate and to stearate were determined and their ratios, which signify the selectivity were calculated. Pt and Pd catalysts show different rates of hydrogenation towards the double bonds. Pt catalyst has lower oleate selectivity leading to higher yields of saturated product but lower percentage of trans-isomer than the Pd catalyst at comparable mean particle size of 1.5 nm. The oleate selectivity increases while the linoleate selectivity as well as the activity decreases with an increase of the mean particle size. An intermediate trans, trans-linoleate was detected for the Pt catalyst with larger particle mean size. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000180139700013 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/80557]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liew, KY |
| 作者单位 | 1.Univ Sains Malaysia, Sch Chem Sci, Minden 11800, Penang, Malaysia 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 3.Univ Nancy 1, CNRS, UMR 7565, Lab Catalyse Heterogene, F-54506 Vandoeuvre Les Nancy, France |
| 推荐引用方式 GB/T 7714 | Choo, HP,Liew, KY,Liu, HF,et al. Activity and selectivity of noble metal colloids for the hydrogenation of polyunsaturated soybean oil[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2003,191(1):113-121. |
| APA | Choo, HP,Liew, KY,Liu, HF,Seng, CE,Mahmood, WAK,&Bettahar, M.(2003).Activity and selectivity of noble metal colloids for the hydrogenation of polyunsaturated soybean oil.JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,191(1),113-121. |
| MLA | Choo, HP,et al."Activity and selectivity of noble metal colloids for the hydrogenation of polyunsaturated soybean oil".JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL 191.1(2003):113-121. |
入库方式： OAI收割
来源：化学研究所
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