The Relation of Electronic Configuration of Transition Metal Complex Oxides to the Surface Photovoltaic Response(Ⅰ)──The Studies of M(Ⅱ)Fe2O4(M=Cu, Co, Ni)

Abstract

Abstract: The relations between the photovoltaic response of transition metal complex ox-ides and their electronic configuration were studied by the surface photovoltage spectroscopy (SPS) and field induced surface photovoltage spectroscopy(FISPS) techniques. The results showed that the complex oxide with open-shell Cu(Ⅱ) has more intense low-energy CTtran-sition; Cu(Ⅱ) complex oxide and low-spin d⁷ Co(Ⅱ) complex oxide has composition of dou-blet exited states; Whereas CTtransition of closed-she1l d⁸ Ni (Ⅱ) needs larger energy-These conclusions were confirmed by the test of the reaction catalytical activity-

Key words: Transition metal oxide, SPS, FISPS

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LI Kui-Ying, WANG De-Jun, YU Jian-Feng, WU Tong-Hao, SUN Jia-Zhong, LI Tie-Jin. The Relation of Electronic Configuration of Transition Metal Complex Oxides to the Surface Photovoltaic Response(Ⅰ)──The Studies of M(Ⅱ)Fe₂O₄(M=Cu, Co, Ni)[J]. Chem. J. Chinese Universities, 1997, 18(6): 928.

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The Relation of Electronic Configuration of Transition Metal Complex Oxides to the Surface Photovoltaic Response(Ⅰ)──The Studies of M(Ⅱ)Fe₂O₄(M=Cu, Co, Ni)

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