FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 5 shows a TGA (thermal gravimetric analysis) graph of metal oxide nanoparticle/graphene composites prepared by Examples 1 to 4 [0043]

FIG. 6 shows a SEM image of titanium dioxide nanoparticles prepared by Comparative Example 1 [0044]

FIG. 7, the C 1 s high-resolution XPS result of the titanium dioxide nanoparticle/graphene composite prepared by Example 1 and the C 1 s high-resolution XPS …

FIG. 8, the result of an HR-TEM analysis 23 conducted on the iron oxide nanoparticle/graphene composite prepared by Example 5 shows that iron oxide …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 10 showing the C 1 s high-resolution XPS result of the iron oxide/graphene composite prepared according to Example 5, it was observed that most of the …

FIG. 11 shows a TGA graph of metal oxide nanoparticle/graphene composites prepared by Examples 5 to 8 [0049]

FIG. 12 shows a SEM image of iron oxide nanoparticles prepared by Comparative Example [0050]

FIG. 13, from an SEM analysis result of Example 9, it was observed that tin oxide nanoparticles having a particle size of about 5 to about 30 nm were deposited …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 15 showing the C 1 s high-resolution XPS result of the tin oxide/graphene composite prepared according to Example 9, it was observed that most of the …

FIG. 16 shows a TGA graph of a metal oxide nanoparticle/graphene composite prepared by Examples 9 to 11 [0054]

FIG. 17 shows a SEM image of tin oxide nanoparticles prepared by Comparative Example 4 [0055]

FIG. 18, in the case of the titanium dioxide/graphene electrode prepared by Example 12, the discharge capacity of the lithium ions was about 378 mAh/g at a …

FIG. 19a. Furthermore, the charge/discharge property and cyclability of the battery at a high rate was examined while changing the current density from about …

FIG. 20a. Furthermore, the charge/discharge property and 30 cyclability of the battery at a high rate was examined while changing the current density from …

FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 5 shows a TGA (thermal gravimetric analysis) graph of metal oxide nanoparticle/graphene composites prepared by Examples 1 to 4 [0043]

FIG. 6 shows a SEM image of titanium dioxide nanoparticles prepared by Comparative Example 1 [0044]

FIG. 7, the C 1 s high-resolution XPS result of the titanium dioxide nanoparticle/graphene composite prepared by Example 1 and the C 1 s high-resolution XPS …

FIG. 8, the result of an HR-TEM analysis 23 conducted on the iron oxide nanoparticle/graphene composite prepared by Example 5 shows that iron oxide …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 10 showing the C 1 s high-resolution XPS result of the iron oxide/graphene composite prepared according to Example 5, it was observed that most of the …

FIG. 11 shows a TGA graph of metal oxide nanoparticle/graphene composites prepared by Examples 5 to 8 [0049]

FIG. 12 shows a SEM image of iron oxide nanoparticles prepared by Comparative Example [0050]

FIG. 13, from an SEM analysis result of Example 9, it was observed that tin oxide nanoparticles having a particle size of about 5 to about 30 nm were deposited …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 15 showing the C 1 s high-resolution XPS result of the tin oxide/graphene composite prepared according to Example 9, it was observed that most of the …

FIG. 16 shows a TGA graph of a metal oxide nanoparticle/graphene composite prepared by Examples 9 to 11 [0054]

FIG. 17 shows a SEM image of tin oxide nanoparticles prepared by Comparative Example 4 [0055]

FIG. 18, in the case of the titanium dioxide/graphene electrode prepared by Example 12, the discharge capacity of the lithium ions was about 378 mAh/g at a …

FIG. 19a. Furthermore, the charge/discharge property and cyclability of the battery at a high rate was examined while changing the current density from about …

FIG. 20a. Furthermore, the charge/discharge property and 30 cyclability of the battery at a high rate was examined while changing the current density from …

FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 5 shows a TGA (thermal gravimetric analysis) graph of metal oxide nanoparticle/graphene composites prepared by Examples 1 to 4 [0043]

FIG. 6 shows a SEM image of titanium dioxide nanoparticles prepared by Comparative Example 1 [0044]

FIG. 7, the C 1 s high-resolution XPS result of the titanium dioxide nanoparticle/graphene composite prepared by Example 1 and the C 1 s high-resolution XPS …

FIG. 8, the result of an HR-TEM analysis 23 conducted on the iron oxide nanoparticle/graphene composite prepared by Example 5 shows that iron oxide …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 10 showing the C 1 s high-resolution XPS result of the iron oxide/graphene composite prepared according to Example 5, it was observed that most of the …

FIG. 11 shows a TGA graph of metal oxide nanoparticle/graphene composites prepared by Examples 5 to 8 [0049]

FIG. 12 shows a SEM image of iron oxide nanoparticles prepared by Comparative Example [0050]

FIG. 13, from an SEM analysis result of Example 9, it was observed that tin oxide nanoparticles having a particle size of about 5 to about 30 nm were deposited …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 15 showing the C 1 s high-resolution XPS result of the tin oxide/graphene composite prepared according to Example 9, it was observed that most of the …

FIG. 16 shows a TGA graph of a metal oxide nanoparticle/graphene composite prepared by Examples 9 to 11 [0054]

FIG. 17 shows a SEM image of tin oxide nanoparticles prepared by Comparative Example 4 [0055]

FIG. 18, in the case of the titanium dioxide/graphene electrode prepared by Example 12, the discharge capacity of the lithium ions was about 378 mAh/g at a …

FIG. 19a. Furthermore, the charge/discharge property and cyclability of the battery at a high rate was examined while changing the current density from about …

FIG. 20a. Furthermore, the charge/discharge property and 30 cyclability of the battery at a high rate was examined while changing the current density from …

FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 4 shows a XRD (X-ray diffraction) graph of a metal oxide nanoparticle/graphene composite prepared by Example 1 and titanium dioxide nanoparticles prepared …

FIG. 5 shows a TGA (thermal gravimetric analysis) graph of metal oxide nanoparticle/graphene composites prepared by Examples 1 to 4 [0043]

FIG. 6 shows a SEM image of titanium dioxide nanoparticles prepared by Comparative Example 1 [0044]

FIG. 7, the C 1 s high-resolution XPS result of the titanium dioxide nanoparticle/graphene composite prepared by Example 1 and the C 1 s high-resolution XPS …

FIG. 8, the result of an HR-TEM analysis 23 conducted on the iron oxide nanoparticle/graphene composite prepared by Example 5 shows that iron oxide …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 9 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 5 and iron oxide nanoparticles prepared by Comparative Example 3 …

FIG. 10 showing the C 1 s high-resolution XPS result of the iron oxide/graphene composite prepared according to Example 5, it was observed that most of the …

FIG. 11 shows a TGA graph of metal oxide nanoparticle/graphene composites prepared by Examples 5 to 8 [0049]

FIG. 12 shows a SEM image of iron oxide nanoparticles prepared by Comparative Example [0050]

FIG. 13, from an SEM analysis result of Example 9, it was observed that tin oxide nanoparticles having a particle size of about 5 to about 30 nm were deposited …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 14 shows a XRD graph of a metal oxide nanoparticle/graphene composite prepared by Example 9 and tin oxide nanoparticles prepared by Comparative Example 4 …

FIG. 15 showing the C 1 s high-resolution XPS result of the tin oxide/graphene composite prepared according to Example 9, it was observed that most of the …

FIG. 16 shows a TGA graph of a metal oxide nanoparticle/graphene composite prepared by Examples 9 to 11 [0054]

FIG. 17 shows a SEM image of tin oxide nanoparticles prepared by Comparative Example 4 [0055]

FIG. 18, in the case of the titanium dioxide/graphene electrode prepared by Example 12, the discharge capacity of the lithium ions was about 378 mAh/g at a …

FIG. 19a. Furthermore, the charge/discharge property and cyclability of the battery at a high rate was examined while changing the current density from about …

FIG. 20a. Furthermore, the charge/discharge property and 30 cyclability of the battery at a high rate was examined while changing the current density from …