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《Acta Physico-Chimica Sinica》 2006-08
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Preparation of NiO/SrTiO_3 with Cold Plasma Treatment for Photocatalytic Water Splitting

ZOU, Ji-Jun LIU, Chang-Jun* (Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China)  
Glow discharge plasma was used to modify NiO/SrTiO3 photocatalyst prepared by impregnation method. According to XRD, XPS, and TEM characterizations, the metal dispersion and stability of catalyst were greatly improved. XPS, thermo-gravimetric, and XRD characterizations showed that impregnated Ni(NO3)2 was decomposed into amorphous NiO clusters at room temperature. These clusters may have a strong interaction with the support, contributing to the enhanced metal dispersion and stability. The high metal dispersion can improve the electron transfer from semiconductor to metal and provide more active sites. The photocatalytic activity for water splitting to hydrogen and methanol solution conversion to hydrogen is 1.3 and 1.8 times of that of conventional catalyst.
【Fund】: 国家自然科学基金(20225618)资助项目
【CateGory Index】: O643.32;TQ116.2
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