Tuning P-dAu Bimetallic Catalysts for Heterogeneous Parahydrogen-Induced Polarization
文献类型：期刊论文
| 作者 | Wang, Weiyu; Hu, Han; Xu, Jun; Wang, Qiang; Qi, Guodong; Wang, Chao; Zhao, Xingling; Zhou, Xue; Deng, Feng |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2018-01-18 |
| 卷号 | 122期号:2页码:1248-1257 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.7b11801 |
| 文献子类 | Article |
| 英文摘要 | The 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关键词 | METAL-SUPPORT INTERACTIONS ; SELECTIVE ACETYLENE HYDROGENATION ; CALCINATION TEMPERATURE ; NANOPARTICLE CATALYSTS ; PLATINUM NANOPARTICLES ; CU/AL2O3 CATALYSTS ; TRIPLE BONDS ; CO OXIDATION ; AU ; TIO2 |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000423140500028 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | 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) ; 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) |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/12830]  |
| 专题 | 中国科学院武汉物理与数学研究所 |
| 通讯作者 | Xu, Jun; Deng, Feng |
| 作者单位 | Chinese 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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