Extracting the local electronic states of Pt polycrystalline films surface under electrochemical conditions using polarization-dependent total reflection fluorescence x-ray absorption near edge structure spectroscopy
Extracting the local electronic states of Pt polycrystalline films surface under electrochemical conditions using polarization-dependent total reflection fluorescence x-ray absorption near edge structure spectroscopy
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使用偏振相关全反射荧光 X 射线吸收近边缘结构光谱提取电化学条件下 Pt 多晶薄膜表面的局域电子态
DOI:
10.1088/2516-1075/abd1ca
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发表时间:
2021
影响因子:
2.6
通讯作者:
Asakura Kiyotaka
中科院分区:
文献类型:
--
作者:
Wakisaka Yuki;Uehara Hiromitsu;Yuan Qiuyi;Kido Daiki;Wada Takahiro;Uo Motohiro;Uemura Yohei;Yokoyama Toshihiko;Kamei Yutaro;Kuroda Seiichi;Ohira Akihiro;Takakusagi Satoru;Asakura Kiyotaka
The local atomic information about the interface between the 30 nm-thick Pt polycrystalline films and the solution with and without perfluorosulfonic acid polymers (Nafion®) for the model cathode catalyst of fuel cell has been captured under electrochemical conditions using polarization-dependent total reflection fluorescence x-ray absorption near edge structure spectroscopy (PTRF–XANES). The results show that the formation of sub-monolayer-equivalent PtO or adsorbed hydrogen/oxygen species in the surface region can be successfully observed in the PTRF–XANES spectra when the thickness of the solution layer and the incidence angle are properly controlled. This capability enables us to examine the metal/(Nafion®/) solution interface structure through XANES together with other surface analysis methods, which will enhance comprehensive understanding of the nature of the interface of the fuel cell system.
影响因子:
1.5
作者:
H. Abe;T. Nakayama;Y. Niwa;H. Nitani;H. Kondoh;M. Nomura
通讯作者:
M. Nomura
影响因子:
1.5
作者:
K. Ohtani;T. Fujikawa;T. Kubota;K. Asakura;Y. Iwasawa
通讯作者:
Y. Iwasawa
DOI:
10.1016/s0167-2991(96)80302-8
发表时间:
1996
期刊:
Studies in Surface Science and Catalysis
影响因子:
--
作者:
K. Asakura;T. Kubota;N. Ichikuni;Y. Iwasawa
通讯作者:
Y. Iwasawa