Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation
This work focuses to ease the challenge in electro-oxidation of methanol for the direct methanol fuel cell (DMFC) using a well-defined efficient electrocatalyst. The proposed electrocatalyst is designed using the ZIF-67-Corannulene composite support decorated with palladium nanoparticles (PdNPs) for...
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sg-ntu-dr.10356-1607462023-12-11T15:34:41Z Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation Khuntia, Harisankar Bhavani, Kalli Sai Anusha, Tummala Trinadh, Thota Stuparu, Mihaiela Corina Brahman, Pradeep Kumar School of Physical and Mathematical Sciences Science::Chemistry Fuel Cell Electrocatalytic Activity This work focuses to ease the challenge in electro-oxidation of methanol for the direct methanol fuel cell (DMFC) using a well-defined efficient electrocatalyst. The proposed electrocatalyst is designed using the ZIF-67-Corannulene composite support decorated with palladium nanoparticles (PdNPs) for the first time for the methanol oxidation reaction. Structural and morphological characterization was carried out using UV–vis, FT-IR, XRD, FE-SEM, EDS, XPS, and ICP-OES analysis. The catalytic performance of the designed catalyst towards methanol oxidation was studied in an alkaline medium. The electrochemical properties, catalytic activity, and long-term stability performance of the PdNPs@ZIF-67-Corannulene catalyst were assessed by cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry. The formation of intermediates during the electrooxidation of methanol was confirmed by in-situ FT-IR measurements and the mechanism of methanol oxidation at the catalyst was proposed. Furthermore, owing to the synergetic effect of PdNPs, unique structure of ZIF-67-Corannulene support, the as-synthesized catalyst has demonstrated large electrochemical surface area (ECSA = 114.6 m2g−1), notably higher electrocatalytic activity (If = 90.2 mAcm-2) and enhanced long term stability. The proposed research opens new channels for the development of high-performance stable catalysts based on new carbon material: Corannulene. Ministry of Education (MOE) Nanyang Technological University T. Anusha and K. Sai Bhavani thank Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, Andhra Pradesh, India for providing research fellowship. M.C.S. acknowledges financial support from the Ministry of Education Singapore under the AcRF Tier 1 (2019-T1-002-066) (RG106/19) and NTU (04INS000171C230). 2022-08-02T03:19:47Z 2022-08-02T03:19:47Z 2021 Journal Article Khuntia, H., Bhavani, K. S., Anusha, T., Trinadh, T., Stuparu, M. C. & Brahman, P. K. (2021). Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 615, 126237-. https://dx.doi.org/10.1016/j.colsurfa.2021.126237 0927-7757 https://hdl.handle.net/10356/160746 10.1016/j.colsurfa.2021.126237 2-s2.0-85101052779 615 126237 en 2019-T1-002-066 RG106/19 04INS000171C230 Colloids and Surfaces A: Physicochemical and Engineering Aspects © 2021 Elsevier B.V. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1016/j.colsurfa.2021.126237. application/pdf |
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Science::Chemistry Fuel Cell Electrocatalytic Activity Khuntia, Harisankar Bhavani, Kalli Sai Anusha, Tummala Trinadh, Thota Stuparu, Mihaiela Corina Brahman, Pradeep Kumar Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation |
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This work focuses to ease the challenge in electro-oxidation of methanol for the direct methanol fuel cell (DMFC) using a well-defined efficient electrocatalyst. The proposed electrocatalyst is designed using the ZIF-67-Corannulene composite support decorated with palladium nanoparticles (PdNPs) for the first time for the methanol oxidation reaction. Structural and morphological characterization was carried out using UV–vis, FT-IR, XRD, FE-SEM, EDS, XPS, and ICP-OES analysis. The catalytic performance of the designed catalyst towards methanol oxidation was studied in an alkaline medium. The electrochemical properties, catalytic activity, and long-term stability performance of the PdNPs@ZIF-67-Corannulene catalyst were assessed by cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry. The formation of intermediates during the electrooxidation of methanol was confirmed by in-situ FT-IR measurements and the mechanism of methanol oxidation at the catalyst was proposed. Furthermore, owing to the synergetic effect of PdNPs, unique structure of ZIF-67-Corannulene support, the as-synthesized catalyst has demonstrated large electrochemical surface area (ECSA = 114.6 m2g−1), notably higher electrocatalytic activity (If = 90.2 mAcm-2) and enhanced long term stability. The proposed research opens new channels for the development of high-performance stable catalysts based on new carbon material: Corannulene. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Khuntia, Harisankar Bhavani, Kalli Sai Anusha, Tummala Trinadh, Thota Stuparu, Mihaiela Corina Brahman, Pradeep Kumar |
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Article |
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Khuntia, Harisankar Bhavani, Kalli Sai Anusha, Tummala Trinadh, Thota Stuparu, Mihaiela Corina Brahman, Pradeep Kumar |
author_sort |
Khuntia, Harisankar |
title |
Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation |
title_short |
Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation |
title_full |
Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation |
title_fullStr |
Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation |
title_full_unstemmed |
Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation |
title_sort |
synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/160746 |
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1787136553896640512 |