Development and Application of a Sample Holder for In Situ Gaseous TEM Studies of Membrane Electrode Assemblies for Polymer Electrolyte Fuel Cells

被引：2
|
作者：
Kamino, Takeo [1 ,2 ]
Yaguchi, Toshie [3 ]
Shimizu, Takahiro [4 ]
机构：
[1] Univ Yamanashi, Fuel Cell Nanomat Ctr, 6-43 Miyamae Cho, Kofu, Yamanashi 4000021, Japan
[2] Vacuum Device Inc, 1285-5 Iijima Cho, Mito, Ibaraki 3114155, Japan
[3] Hitachi High Technol Corp, Adv Microscope Syst Design Dept, 882 Ichige, Hitachinaka, Ibaraki 3120057, Japan
[4] Japan Automobile Res Inst, FC EV Res Div, 2530 Karima, Tsukuba, Ibaraki 3050822, Japan
来源：
MICROSCOPY AND MICROANALYSIS | 2017年 / 23卷 / 05期
基金：
日本学术振兴会;
关键词：
in situ TEM; polymer electrolyte fuel cell; membrane electrode assembly; electrochemical measurement; ACTIVE-SITE; SPECTROSCOPY; DEGRADATION; MECHANISM;
D O I：
10.1017/S143192761701248X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：945 / 950
页数：6
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