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ÔÎÄÏ×£º5.pdf ÇóÖú²¿·ÖÎÄÏ×½²½â£º Characterization From the ICP measurments, the amount of Ru loaded on Ru/ TiO2(B), Ru/TiO2(W) and Ru/TiO2(G) were determined to be 0.80, 0.75, and 3.60 wt%, respectively. The prepared Ru/TiO2 catalysts were subjected to physical characterization. XRD measurements on Ru/TiO2(W) (shown in Fig. 2(C)) showed the presence of diffraction signals attributed to metallic Ru (JCPDS 06-0663) at 42.15 and 44.00 (CuKa), along with diffraction signals for TiO2 with the anatase structure (JCPDS 83-2243, Fig. 2(A)). Although definitive diffraction signals assignable to metallic Ru were observed in the XRD pattern of Ru/TiO2(G) (Fig. 2(D)), the signals were slightly broader than those of Ru/TiO2(W). Signals corresponding to Ru oxide were not observed. In the case of Ru/TiO2(B), on the other hand, only signals corresponding to TiO2 were obtained (Fig. 2(B)). However, XPS studies on Ru/TiO2(B) showed a signal with a binding energy of 279.5 eV; no signal attributed to Ru oxides4,8 was observed, indicating that metallic Ru was present on the TiO2. http://pubs.rsc.org | doi:10.1039/B817740F Õâ¸öͼ˵Ã÷ÁËʲôÒâË¼ÄØ£¿ [ À´×Ô¿ÆÑмÒ×å ľ³æ´ß»¯ ] [ Last edited by 18298414700 on 2012-3-15 at 12:05 ] |
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