APM OpenIR
Tuning P-dAu Bimetallic Catalysts for Heterogeneous Parahydrogen-Induced Polarization
Wang, Weiyu; Hu, Han; Xu, Jun; Wang, Qiang; Qi, Guodong; Wang, Chao; Zhao, Xingling; Zhou, Xue; Deng, Feng
2018-01-18
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume122Issue:2Pages:1248-1257
SubtypeArticle
AbstractThe heterogeneous hydrogenation of propene over supported Pd-Au bimetallic nanoparticles was investigated using NMR and the parahydrogen-induced polarization (PHIP) technique. The composition and structure of Pd-Au/TiO2 catalysts were correlated to both catalytic activity and pairwise hydrogen addition. Sol-immobilization, impregnation, and deposition precipitation methods were used for preparation of the Pd-Au bimetallic catalysts. A strong signal enhancement was observed on the bimetallic catalyst prepared through the sol-immobilization method, up to 24-fold higher than that with the other two methods. The polyvinyl alcohol (PVA) stabilizer bound to the metal surface was responsible for the enhanced PHIP effect. The removal of the PVA ligands by water washing and calcination treatments shows a significant effect on the hydrogen pairwise addition. Increasing the Au content in the bimetallic alloy led to a promotion of the pairwise selectivity due to the ensemble effect. The pairwise selectivity could be tuned by the morphologies of Pd-Au structures; the Au-shell/Pd-core morphology produced a higher pairwise selectivity than that of the Pd-shell/Au-core structure, while the random PdAu alloy showed the best PHIP effect.
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding OrganizationNational Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013) ; National Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013) ; National Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013) ; National Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013)
DOI10.1021/acs.jpcc.7b11801
WOS KeywordMETAL-SUPPORT INTERACTIONS ; SELECTIVE ACETYLENE HYDROGENATION ; CALCINATION TEMPERATURE ; NANOPARTICLE CATALYSTS ; PLATINUM NANOPARTICLES ; CU/AL2O3 CATALYSTS ; TRIPLE BONDS ; CO OXIDATION ; AU ; TIO2
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013) ; National Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013) ; National Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013) ; National Natural Science Foundation of China(21622311 ; National Natural Science Foundation of China(21622311 ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; Key Program for Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-SLH027) ; 21611130104 ; 21611130104 ; 21473245 ; 21473245 ; 21733013) ; 21733013)
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000423140500028
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.apm.ac.cn/handle/112942/12831
Collection中国科学院武汉物理与数学研究所
Corresponding AuthorXu, Jun; Deng, Feng
AffiliationChinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Natl Ctr Magnet Resonance Wuhan, Wuhan Inst Phys & Math, Wuhan 430071, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Wang, Weiyu,Hu, Han,Xu, Jun,et al. Tuning P-dAu Bimetallic Catalysts for Heterogeneous Parahydrogen-Induced Polarization[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(2):1248-1257.
APA Wang, Weiyu.,Hu, Han.,Xu, Jun.,Wang, Qiang.,Qi, Guodong.,...&Deng, Feng.(2018).Tuning P-dAu Bimetallic Catalysts for Heterogeneous Parahydrogen-Induced Polarization.JOURNAL OF PHYSICAL CHEMISTRY C,122(2),1248-1257.
MLA Wang, Weiyu,et al."Tuning P-dAu Bimetallic Catalysts for Heterogeneous Parahydrogen-Induced Polarization".JOURNAL OF PHYSICAL CHEMISTRY C 122.2(2018):1248-1257.
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