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Citation: Guo Qinlin, Huang Huizhong, Gui Linlin, Xie Youchang, Tang Youqi. STUDIES OF CuCl/γ-Al₂O₃ BY XPS, SSIMS AND ISS[J]. Acta Physico-Chimica Sinica, ;1987, 3(04): 389-394. doi: 10.3866/PKU.WHXB19870411 shu

STUDIES OF CuCl/γ-Al₂O₃ BY XPS, SSIMS AND ISS

1.
Institute of Physical Chemistry; Peking University

Received Date: 19 March 1986
Available Online: 15 August 1987

The XPS (X-Ray Photoelectron Spectroscopy), SSIMS (Static Second Ion Mass Spectroscopy) and ISS (Ion Scattering Spectroscopy) have shown that CuCl is dis- persed on γ-Al_2O_3 surface as a monolayer. The maximum amount of dispersion of CuCl on γ-Al_2O_3 surface determined by XPS is approaching to the value determined by XRD.
The binding energy of Cu 2p3/2 obtained by XPS decreases with the amount of CuCl added to the samples. The valence band spectra of CuCl dispersed on γ-Al_2O_3 is different from that of pure CuCl. ISS of He~+ gave a scattering peak of copper of CuCl/γ-Al_2O_3 11 eV higher than that of pure CuCl. They indicate that CuCl has a quite strong interaction with the γ-Al_2O_3 surface. The dispersed CuCl gave a widening Auger peak which can be attributed to the heterogeneity of γ-Al_2O_3 surface.
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STUDIES OF CuCl/γ-Al2O3 BY XPS, SSIMS AND ISS

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STUDIES OF CuCl/γ-Al₂O₃ BY XPS, SSIMS AND ISS