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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
Source PublicationRSC ADVANCES
Volume7Issue:50Pages:31582-31587
AbstractSelective 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c7ra05653b
WOS Subject ExtendedChemistry
WOS KeywordAQUEOUS-PHASE ; PALLADIUM CATALYST ; MONO LAYER ; OXIDATION ; NANOPARTICLES ; RU ; HYDRODEOXYGENATION ; ELECTROCATALYSTS ; CYCLOHEXANONE ; REDUCTION
Indexed BySCI
Language英语
Funding OrganizationNational Scientific Foundation of China(21303210) ; Open Project Program of the State Key Lab of CAD&CG Zhejiang University(A1701)
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000404076400052
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14157
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
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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