Surface plasmon resonance induced reduction of high quality Ag/graphene composite at water/toluene phase for reduction of H2O2

• Published in: Applied surface science 2013-01, Vol.265, p.578-584
• Main Authors: Zhang, Feng-Jun, Zhang, Ke-Hua, Xie, Fa-Zhi, Liu, Jin, Dong, Hong-Fei, Zhao, Wei, Meng, Ze-Da
• Format: Article
• Language: English
• Subjects: Ag/graphene; Analytical chemistry; Chemistry; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Density; Deoxygenation; Electrical properties; Electrochemical methods; Exact sciences and technology; Graphene; Materials science; Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity); Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Oxides; Physics; Plasmons; Reduction; Reduction of H2O2; Silver; Specific materials; Specific materials: fabrication, treatment, testing and analysis; Surface plasmon resonance; X-ray photoelectron spectroscopy
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2012.11.049

▸ The Ag/graphene composites have been successfully synthesized in two-phase solvent. ▸ The surface plasmon resonance of Ag can reduce GO with high deoxygenation and low defect. ▸ The Ag particles were uniformly distributed on graphene surface. ▸ The Ag/graphene composites obtained show high superior electrical properties for reduction of H2O2. Surface plasmon resonance induced synthesis of Ag/graphene composites from Ag/graphene oxide (Ag/GO) in a two-phase (water–toluene) solvent was reported. Transmission electron microscopy (TEM) results revealed that the Ag nanoparticles with size of 5–8nm were trimly distributed on reduced graphene oxide sheets. Raman and X-ray photoelectron spectroscopy (XPS) have demonstrated low defect density and high deoxygenation degree of graphene in Ag/graphene composite. The excellent structure and morphology of Ag/graphene composites contributed to superior electrical properties for reduction of H2O2.