Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Hollow mesoporous silica supported PtIr bimetal catalysts for selective hydrogenation of phenol: significant promotion effect of iridium | |
Zheng, Yuying1; He, Peishan1; Fang, Yanxiong1; Yang, Xu2; Liang, Huagen3 | |
2017 | |
发表期刊 | RSC ADVANCES |
卷号 | 7期号:50页码:31582-31587 |
摘要 | Selective hydrogenation of phenol is of great significant for the production of Nylon 6. Herein, highly efficient and stable Ir promoted Pt catalysts for the hydrogenation of phenol are prepared by deposition of Pt-Ir nanoparticles onto hollow mesoporous silica spheres (HMSs) through a facile wet-impregnation and H-2 reduction method. The obtained PtIr/HMS catalyst with Ir/Pt molar ratio of 0.1 shows a highest hydrogenation rate of 4255 mmol h(-1) gPt(-1) with cyclohexanone selectivity of 85% at 50 degrees C and 0.5 MPa of pH(2), which is 3 times and 8.6 times higher than that of the mono Pt/HMS catalyst and commercial Pt catalyst, respectively. The trace addition of Ir promoter essentially contributes to the enhanced hydrogenation activity by improving the metal dispersion of Pt nanoparticles and promoting the charge transfer between the Pt and Ir. This work provides an effective protocol in developing high performance catalysts for phenol hydrogenation under mild reaction conditions. |
文章类型 | Article |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.1039/c7ra05653b |
研究领域[WOS] | Chemistry |
关键词[WOS] | AQUEOUS-PHASE ; PALLADIUM CATALYST ; MONO LAYER ; OXIDATION ; NANOPARTICLES ; RU ; HYDRODEOXYGENATION ; ELECTROCATALYSTS ; CYCLOHEXANONE ; REDUCTION |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | National Scientific Foundation of China(21303210) ; Open Project Program of the State Key Lab of CAD&CG Zhejiang University(A1701) |
WOS类目 | Chemistry, Multidisciplinary |
WOS记录号 | WOS:000404076400052 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.giec.ac.cn/handle/344007/14157 |
专题 | 中国科学院广州能源研究所 |
作者单位 | 1.Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.China Univ Min & Technol, Low Carbon Energy Inst, Sch Chem Engn & Technol, Xuzhou 221116, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Yuying,He, Peishan,Fang, Yanxiong,et al. Hollow mesoporous silica supported PtIr bimetal catalysts for selective hydrogenation of phenol: significant promotion effect of iridium[J]. RSC ADVANCES,2017,7(50):31582-31587. |
APA | Zheng, Yuying,He, Peishan,Fang, Yanxiong,Yang, Xu,&Liang, Huagen.(2017).Hollow mesoporous silica supported PtIr bimetal catalysts for selective hydrogenation of phenol: significant promotion effect of iridium.RSC ADVANCES,7(50),31582-31587. |
MLA | Zheng, Yuying,et al."Hollow mesoporous silica supported PtIr bimetal catalysts for selective hydrogenation of phenol: significant promotion effect of iridium".RSC ADVANCES 7.50(2017):31582-31587. |
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