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Nafion-sulfonated silica composite membrane for proton exchange membrane fuel cells under operating low humidity condition

Title
Nafion-sulfonated silica composite membrane for proton exchange membrane fuel cells under operating low humidity condition
Author(s)
Oh, KwangjinKwon, OsungSon, ByungrakLee, Dong-HaShanmugam, Sangaraju
DGIST Authors
Son, ByungrakLee, Dong-HaShanmugam, Sangaraju
Issued Date
2019-08
Type
Article
Article Type
Article
Author Keywords
Sulfonated silicaComposite membraneLow relative humidityProton conductivityFuel cell performance
Keywords
POLYMER ELECTROLYTE MEMBRANESNANOCOMPOSITE MEMBRANESNANOPARTICLESACIDCONDUCTIVITYFABRICATIONNANOTUBESSIZECOPOLYMERSSTABILITY
ISSN
0376-7388
Abstract
Sulfonated silica, synthesized by using tetraethyl orthosilicate and chlorosulfuric acid through calcination, was used as a filler to create Nafion-SSA composite membranes for applying proton exchange membrane fuel cells under low relative humidity (RH)condition. High water uptake and ion exchange capacity values were observed, and the Nafion-SSA composite membrane showed improved proton conductivity than that of the recast Nafion. The fuel cell operating at 80 °C under 20% RH with Nafion-SSA composite membrane showed 2.8 times higher maximum power density (454 mW cm −2 )and current density (2062 mA cm −2 )in comparison with the recast Nafion (159 mW cm −2 , 734 mA cm −2 ). The thermal stability and mechanical properties of recast Nafion and Nafion-SSA composite membranes were evaluated by TGA and Tensile test. © 2019
URI
http://hdl.handle.net/20.500.11750/9825
DOI
10.1016/j.memsci.2019.04.031
Publisher
Elsevier BV
Related Researcher
  • 손병락 Son, Byungrak 에너지융합연구부
  • Research Interests 연료전지; Fuel Cell; 하이브리드 전원; Hybrid Power; 스택; Stack; 촉매; Catalyst; 연료전지시스템; Fuel Cell System;센서네트워크;Sensor Network
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Appears in Collections:
Department of Energy Science and Engineering Advanced Energy Materials Laboratory 1. Journal Articles
Division of Intelligent Robotics 1. Journal Articles
Division of Energy Technology 1. Journal Articles
Convergence Research Center for Wellness 1. Journal Articles

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