Development and Application of a Sample Holder for In Situ Gaseous TEM Studies of Membrane Electrode Assemblies for Polymer Electrolyte Fuel Cells
Development and Application of a Sample Holder for In Situ Gaseous TEM Studies of Membrane Electrode Assemblies for Polymer Electrolyte Fuel Cells
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用于聚合物电解质燃料电池膜电极组件原位气态 TEM 研究的样品架的开发和应用
DOI：
10.1017/s143192761701248x
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发表时间：
2017
影响因子：
2.8
通讯作者：
Takahiro Shimizu
中科院分区：
文献类型：
--
作者：
Takeo Kamino;Toshie Yaguchi;Takahiro Shimizu
聚合物电解质燃料电池由于其高功率密度和低工作温度而在固定和移动的应用中具有巨大的潜力。然而，在电化学反应过程中的结构变化还没有得到很好的理解。在这篇文章中，我们详细介绍了配备有气体喷射器和导电体的样品保持器的开发及其在聚合物电解质燃料电池膜电极组件中的应用。将氢气和氧气分别同时喷射到膜电极组件样品的阳极和阴极催化剂的表面上，并且沿着测量产生的电压，同时进行催化剂中的结构变化的观察。
Polymer electrolyte fuel cells hold great potential for stationary and mobile applications due to high power density and low operating temperature. However, the structural changes during electrochemical reactions are not well understood. In this article, we detail the development of the sample holder equipped with gas injectors and electric conductors and its application to a membrane electrode assembly of a polymer electrolyte fuel cell. Hydrogen and oxygen gases were simultaneously sprayed on the surfaces of the anode and cathode catalysts of the membrane electrode assembly sample, respectively, and observation of the structural changes in the catalysts were simultaneously carried out along with measurement of the generated voltages.