Chemical stability of La2O3 in La2O3-Mo cathode materials
摘要
Chemical stability of La2O3 in carbonized and uncarbonized La2O3-Mo cathodes was studied by in-situ XPS analysis. Experimental results show that chemical stability of La2O3 is not good enough. In vacuum and at high temperature, oxygen can be dissociated from the lattice of La2O3 in the uncarbonized La2O3-Mo cathode. Binding energy shifts of La?3d5/2 and La?3d3/2 core peaks, and obvious decrease of satellite peak intensity in La?3d doublet with increasing temperature show that metallic La appears at carbonized La2O3-Mo cathode surface at high temperature.
引用本文（GB/T 7714）
Wang, Jinshu. Chemical stability of La2O3 in La2O3-Mo cathode materials[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2001.
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