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Title: Gold nanoparticle-polymer nanocomposites synthesized by room temperature atmospheric pressure plasma and their potential for fuel cell electrocatalytic application
Authors: Zhang, Richao
Sun, Dan
Zhang, Ruirui
Lin, Wen-Feng
Macias-Montero, Manuel
Patel, Jenish
Askari, Sadegh
McDonald, Calum
Mariotti, Davide
Maguire, Paul
Keywords: Materials for energy and catalysis
Nanoscale materials
Issue Date: 2017
Publisher: Springer Nature © The Author(s)
Citation: ZHANG, R. ... et al, 2017. Gold nanoparticle-polymer nanocomposites synthesized by room temperature atmospheric pressure plasma and their potential for fuel cell electrocatalytic application. Scientific Reports, 7, 46682.
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.
Description: This is an Open Access Article. It is published by Springer Nature under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/
Sponsor: This work was supported by the UK EPSRC (EP/K022237/1, EP/M024938/1, EP/P00394X/1, and EP/I013229/1), National Natural Science Foundation of China (51203135) and InvestNI (award n.PoC-325). CMcD acknowledges the support of the Department of Employment & Learning. Authors also like to acknowledge the support from the EU-COST Action (TD1208).
Version: Published
DOI: 10.1038/srep46682
URI: https://dspace.lboro.ac.uk/2134/24887
Publisher Link: http://dx.doi.org/10.1038/srep46682
Appears in Collections:Published Articles (Chemical Engineering)

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