Imaging Science and Photochemistry ›› 2018, Vol. 36 ›› Issue (1): 100-107.DOI: 10.7517/j.issn.1674-0475.2018.01.010

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Molecular Copper Catalyst Applied in Photoelectrochemical Device for Water Oxidation

LU Yongbin1, XIN Zhijuan2, LIU Si2, LEI Youjia2, WANG Hongyan2   

  1. 1. Research Institute of Shaanxi Yanchang Petroleum Company Ltd., Xi'an 710075, Shaanxi, P. R. China;
    2. College of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710127, Shaanxi, P. R. China
  • Received:2017-05-26 Revised:2017-06-12 Online:2018-01-15 Published:2018-01-15

Abstract: Here, we presented a photoelectrochemical device for water oxidation based on a photosensitizer[Ru(bpy)2(H2dcbpy)](PF6)2 (bpy=2,2'-bipyridine; H2dcbpy=2,2'-bipyridine-4,4'-dicarboxylic acid) and a molecular catalyst Cu(F3TPA)(ClO4)2[F3TPA=tris((6-fluoropyridin-2-yl)methyl)amine].8.3×10-8 mol·cm-2 and 5.56×10-8 mol·cm-2 photosensitizer and catalyst were located on TiO2/FTO electrode respectively. A photocurrent density 20 μA/cm2 was obtained when a 0.2 V vs NHE external bias was applied. Continuous light-irradiation with LED for 300 s, the catalytic activity and stability can be well maintained.

Key words: photoelectrochemical, device, water oxidation, molecular copper catalyst