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| Nanostructured trimetallic Pt/FeRuC, Pt/NiRuC, and Pt/CoRuC catalysts for methanol electrooxidation | |
| Alternative Title | J. Mater. Chem. |
| Poh, Chee Kok2,3,4; Tian, Zhiqun2,4; Gao, Jiajian1; Liu, Zhaolin; Lin, Jianyi2,4; Feng, Yuan Ping3; Su, Fabing1 | |
| 2012 | |
| Source Publication | JOURNAL OF MATERIALS CHEMISTRY
 |
| ISSN | 0959-9428 |
| Volume | 22Issue:27Pages:13643-13652 |
| Abstract | We report the preparation and characterization of metal-carbon nanocomposites (NiRuC, FeRuC, and CoRuC) with bimetallic Ni-Ru, Fe-Ru, and Co-Ru nanoparticles incorporated into the pore walls of ordered mesoporous carbon, which were synthesized via a template strategy. Pt nanoparticles were deposited on the nanocomposites separately, which is different from the traditional alloying method. Nitrogen adsorption, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and thermogravimetric analysis techniques were used to characterize the materials. It was found that bimetallic nanoparticles (Ni-Ru, Fe-Ru, and Ru-Co) are homogenously dispersed in the carbon matrix and Pt nanoparticles with a size of less than 5 nm are widely distributed within the nanocomposites. The Pt/CoRuC catalyst shows better catalytic activity for the methanol oxidation reaction (MOR) than Pt on FeRuC or NiRuC, and its performance is also closer to that of the commercial PtRu catalyst with a slightly higher metal loading. A kinetic-based impedance model was used to simulate the electrochemical properties of the catalysts and matches well with the MOR performances of the catalysts. The promotional effect of the bimetallic/carbon nanocomposites on the catalytic activity of Pt was evidenced, and more importantly, the ligand effect was demonstrated by our results to be the major factor in the enhancement. Our investigation not only provides further insight into the roles of Fe, Ni and Co in MOR, but also assists in the design and synthesis of the new types of nanostructured electrocatalyst supports.; We report the preparation and characterization of metal-carbon nanocomposites (NiRuC, FeRuC, and CoRuC) with bimetallic Ni-Ru, Fe-Ru, and Co-Ru nanoparticles incorporated into the pore walls of ordered mesoporous carbon, which were synthesized via a template strategy. Pt nanoparticles were deposited on the nanocomposites separately, which is different from the traditional alloying method. Nitrogen adsorption, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and thermogravimetric analysis techniques were used to characterize the materials. It was found that bimetallic nanoparticles (Ni-Ru, Fe-Ru, and Ru-Co) are homogenously dispersed in the carbon matrix and Pt nanoparticles with a size of less than 5 nm are widely distributed within the nanocomposites. The Pt/CoRuC catalyst shows better catalytic activity for the methanol oxidation reaction (MOR) than Pt on FeRuC or NiRuC, and its performance is also closer to that of the commercial PtRu catalyst with a slightly higher metal loading. A kinetic-based impedance model was used to simulate the electrochemical properties of the catalysts and matches well with the MOR performances of the catalysts. The promotional effect of the bimetallic/carbon nanocomposites on the catalytic activity of Pt was evidenced, and more importantly, the ligand effect was demonstrated by our results to be the major factor in the enhancement. Our investigation not only provides further insight into the roles of Fe, Ni and Co in MOR, but also assists in the design and synthesis of the new types of nanostructured electrocatalyst supports. |
| Keyword | Ordered Mesoporous Carbon Dispersed Platinum Nanoparticles Ruthenium Ad-atoms Pem Fuel-cells Oxygen Reduction Electrocatalytic Properties Ptru Nanoparticles Alloy Surfaces Co Tolerance Oxidation |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1039/c2jm31956j |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ORDERED MESOPOROUS CARBON ; DISPERSED PLATINUM NANOPARTICLES ; RUTHENIUM AD-ATOMS ; PEM FUEL-CELLS ; OXYGEN REDUCTION ; ELECTROCATALYTIC PROPERTIES ; PTRU NANOPARTICLES ; ALLOY SURFACES ; CO TOLERANCE ; OXIDATION |
| WOS Research Area | Chemistry ; Materials Science |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000305419900032 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6406 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.ASTAR, Inst Chem Engn & Sci, Jurong Isl 627833, Singapore 3.Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore 4.ASTAR, Inst Mat Res & Engn Singapore, Singapore 117602, Singapore |
| Recommended Citation GB/T 7714 | Poh, Chee Kok,Tian, Zhiqun,Gao, Jiajian,et al. Nanostructured trimetallic Pt/FeRuC, Pt/NiRuC, and Pt/CoRuC catalysts for methanol electrooxidation[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(27):13643-13652. |
| APA | Poh, Chee Kok.,Tian, Zhiqun.,Gao, Jiajian.,Liu, Zhaolin.,Lin, Jianyi.,...&Su, Fabing.(2012).Nanostructured trimetallic Pt/FeRuC, Pt/NiRuC, and Pt/CoRuC catalysts for methanol electrooxidation.JOURNAL OF MATERIALS CHEMISTRY,22(27),13643-13652. |
| MLA | Poh, Chee Kok,et al."Nanostructured trimetallic Pt/FeRuC, Pt/NiRuC, and Pt/CoRuC catalysts for methanol electrooxidation".JOURNAL OF MATERIALS CHEMISTRY 22.27(2012):13643-13652. |
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| Nanostructured trime（1328KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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