Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/160746
Title: Synthesis and characterization of corannulene-metal-organic framework support material for palladium catalyst: an excellent anode material for accelerated methanol oxidation
Authors: Khuntia, Harisankar
Bhavani, Kalli Sai
Anusha, Tummala
Trinadh, Thota
Stuparu, Mihaiela Corina
Brahman, Pradeep Kumar
Keywords: Science::Chemistry
Issue Date: 2021
Source: 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
Project: 2019-T1-002-066 
RG106/19 
04INS000171C230 
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects 
Abstract: 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.
URI: https://hdl.handle.net/10356/160746
ISSN: 0927-7757
DOI: 10.1016/j.colsurfa.2021.126237
Schools: School of Physical and Mathematical Sciences 
Rights: © 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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