In situ TEM observation of oxygen evolution reaction in GDC-Pt half cell at elevated temperatures

Amir Hossein Tavabi; Takayoshi Tanj

In situ TEM observation of oxygen evolution reaction in GDC-Pt half cell at elevated temperatures

Materials Science 2015-06-09 v1

Authors: Amir Hossein Tavabi , Takayoshi Tanj

Abstract

Gadolinium-doped ceria was studied in a half SOFCs at elevated temperatures. In situ electron holography could reveal ionic activity in a single GDC-Pt interface at the elevated temperatures that result in further oxidation of the GDC. In situ EELS measurements confirmed holography results and showed the existence of the gadolinium in a new oxidation state. Also, it was found that the doped cations are the active ions in the oxygen evolution reaction from the solid oxide electrolyte.

Keywords

in situ TEM oxygen evolution reaction GDC-Pt solid oxide fuel cell electron holography EELS gadolinium-doped ceria

Cite

@article{arxiv.1506.02067,
  title  = {In situ TEM observation of oxygen evolution reaction in GDC-Pt half cell at elevated temperatures},
  author = {Amir Hossein Tavabi and Takayoshi Tanj},
  journal= {arXiv preprint arXiv:1506.02067},
  year   = {2015}
}

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