III International Conference

PP-II-8CuO phase were detected, suggested that CuO component in Cu/ZnO catalysts was reducedcompletely to metallic Cu by reducing agent. Figure 3 shows the crystallite size estimatedwith Scherer Equation using the FWHM values. Figure 4 shows SEM image of sample 2. Itcan be seen that the sample consist of uniform spherical particles. Figure 4 shows TEMimages of sample 5, sample 1 and sample 2. The diameters of the particles are in the range20-50 nm, respectively, in accord with the XRD results.*1700 C=O*1360 -CO-CH 312345ACua- Cu(100)/ZnO(0)*b- Cu(80)/ZnO(20)Cu 2Oc- Cu(20)/ZnO(80)* Cud- Cu(0)/ZnO(100)* Cu 2O Cu* * aCu*CuCu** bZnO* CuCu Cu *ZnO* * *Cu c*ZnO** ZnO ZnO ** *d500 1000 1500 2000 2500 3000 3500 4000 4500AbsorbansFig. 1 800mmol/l %70 Cu %30 ZnO FTIR0 20 40 60 80 1002 TethaFig. 2 X-Ray Patterns20nmFig. 3 SEM image of Cu(70) / ZnO(30) water disstilled Fig. 4TEM image of Cu(70) / ZnO(30)References1 J.R.Larry, R.M. Rosenberg and R.G Uhler, IEEE Transactions on Components Hybridsand Manufacturing Technology2 Tani Hand, Oshita K., 1996, US Patent Specification No 5,58809833 S. Zhou, T. Wada, H. Sasabe, J. Chem. Soc., Chem. Commun., 1995, 15254 Applied Catalysis, Wu-Hsun Cheng, 19985 V.Z. Fridman, F.K. Sapozhnikov, Kinet. and Catalysis, 32, 1991, 951175