Gold nanoparticle-polymer nanocomposites synthesized by room temperature atmospheric pressure plasma and their potential for fuel cell electrocatalytic application
Zhang, Ri-Chao and Sun, Dan and Zhang, Ruirui and Lin, Wen-Feng and Macias-Montero, Manuel and Patel, Jenish and Askari, Sadegh and McDonald, Calum and Mariotti, Davide and Maguire, Paul (2017) Gold nanoparticle-polymer nanocomposites synthesized by room temperature atmospheric pressure plasma and their potential for fuel cell electrocatalytic application. Scientific Reports, 7. 46682. ISSN 2045-2322 (https://doi.org/10.1038/srep46682)
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Abstract
Conductive polymers have been increasingly used as fuel cell catalyst support due to their electrical conductivity, large surface areas and stability. The incorporation of metal nanoparticles into a polymer matrix can effectively increase the specific surface area of these materials and hence improve the catalytic efficiency. In this work, a nanoparticle loaded conductive polymer nanocomposite was obtained by a one-step synthesis approach based on room temperature direct current plasma-liquid interaction. Gold nanoparticles were directly synthesized from HAuCl4 precursor in poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS). The resulting AuNPs/PEDOT:PSS nanocomposites were subsequently characterized under a practical alkaline direct ethanol fuel cell operation condition for its potential application as an electrocatalyst. Results show that AuNPs sizes within the PEDOT:PSS matrix are dependent on the plasma treatment time and precursor concentration, which in turn affect the nanocomposites electrical conductivity and their catalytic performance. Under certain synthesis conditions, unique nanoscale AuNPs/PEDOT:PSS core-shell structures could also be produced, indicating the interaction at the AuNPs/polymer interface. The enhanced catalytic activity shown by AuNPs/PEDOT:PSS has been attributed to the effective electron transfer and reactive species diffusion through the porous polymer network, as well as the synergistic interfacial interaction at the metal/polymer and metal/metal interfaces.
ORCID iDs
Zhang, Ri-Chao, Sun, Dan, Zhang, Ruirui, Lin, Wen-Feng, Macias-Montero, Manuel, Patel, Jenish, Askari, Sadegh, McDonald, Calum, Mariotti, Davide ORCID: https://orcid.org/0000-0003-1504-4383 and Maguire, Paul;-
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Item type: Article ID code: 90273 Dates: DateEvent24 April 2017Published24 March 2017AcceptedSubjects: Science > Physics > Solid state physics. Nanoscience
Technology > Chemical engineeringDepartment: Faculty of Engineering > Design, Manufacture and Engineering Management Depositing user: Pure Administrator Date deposited: 16 Aug 2024 09:57 Last modified: 03 Oct 2024 09:57 URI: https://strathprints.strath.ac.uk/id/eprint/90273