Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation
In this paper, a PtPd NC catalyst with a network structure of nanochains was prepared with KBr as a structure-directing agent, NaBH<sub>4</sub> as a reducing agent, and modified multi-walled carbon nanotubes (MWCNTs) as a support. The experimental results show that the structure-directin...
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MDPI AG
2022-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/11/1911 |
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| author | Dawei Zhang Yanrong Ren Zhenhua Jin Yonghua Duan Mingli Xu Jie Yu |
| author_facet | Dawei Zhang Yanrong Ren Zhenhua Jin Yonghua Duan Mingli Xu Jie Yu |
| author_sort | Dawei Zhang |
| collection | DOAJ |
| description | In this paper, a PtPd NC catalyst with a network structure of nanochains was prepared with KBr as a structure-directing agent, NaBH<sub>4</sub> as a reducing agent, and modified multi-walled carbon nanotubes (MWCNTs) as a support. The experimental results show that the structure-directing agent KBr helps to form a particular type of nanochain with a network topology. PtPd NCs with various ratios (Pt:Pd = 2:1, 1:1, 1:2) have respective diameters of 30 nm, 35 nm, and 23 nm. With numerous structural flaws at the junctions, the nanochains’ distinctive network structure increases the number of active sites on the PtPd nanocenter surface. Electrochemical characterization results show that the current density of the PtPd NCs is about 658.5 mA mg<sup>−1</sup>, 1.5-times that of the Pt/C catalyst and 3.9-times that of the commercial Pd/C catalyst. Furthermore, it has better electrocatalytic stability for methanol oxidation than Pd/C and Pt/C catalysts. |
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| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T18:50:13Z |
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| spelling | doaj.art-b1c085c153fd42fbab07b1b22ca4b2e12023-11-24T05:53:06ZengMDPI AGMetals2075-47012022-11-011211191110.3390/met12111911Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol OxidationDawei Zhang0Yanrong Ren1Zhenhua Jin2Yonghua Duan3Mingli Xu4Jie Yu5Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaIn this paper, a PtPd NC catalyst with a network structure of nanochains was prepared with KBr as a structure-directing agent, NaBH<sub>4</sub> as a reducing agent, and modified multi-walled carbon nanotubes (MWCNTs) as a support. The experimental results show that the structure-directing agent KBr helps to form a particular type of nanochain with a network topology. PtPd NCs with various ratios (Pt:Pd = 2:1, 1:1, 1:2) have respective diameters of 30 nm, 35 nm, and 23 nm. With numerous structural flaws at the junctions, the nanochains’ distinctive network structure increases the number of active sites on the PtPd nanocenter surface. Electrochemical characterization results show that the current density of the PtPd NCs is about 658.5 mA mg<sup>−1</sup>, 1.5-times that of the Pt/C catalyst and 3.9-times that of the commercial Pd/C catalyst. Furthermore, it has better electrocatalytic stability for methanol oxidation than Pd/C and Pt/C catalysts.https://www.mdpi.com/2075-4701/12/11/1911network structureplatinum–palladium nanochainsmethanolstructural defectselectrocatalysis |
| spellingShingle | Dawei Zhang Yanrong Ren Zhenhua Jin Yonghua Duan Mingli Xu Jie Yu Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation Metals network structure platinum–palladium nanochains methanol structural defects electrocatalysis |
| title | Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation |
| title_full | Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation |
| title_fullStr | Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation |
| title_full_unstemmed | Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation |
| title_short | Facile Synthesis of PtPd Network Structure Nanochains Supported on Multi-Walled Carbon Nanotubes for Methanol Oxidation |
| title_sort | facile synthesis of ptpd network structure nanochains supported on multi walled carbon nanotubes for methanol oxidation |
| topic | network structure platinum–palladium nanochains methanol structural defects electrocatalysis |
| url | https://www.mdpi.com/2075-4701/12/11/1911 |
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