title: One-step synthesis of graphene-AuNPs by HMTA and the electrocatalytical application for O2 and H2O2.
abstract: A green, one-step method for synthesis of graphene-Au nanoparticles (graphene-AuNPs) was introduced in this article, using an environmentally benign hexamethylenetetramine (HMTA) as reducing and stabilizing agent. HMTA slowly was hydrolyzed to generate aldehyde ammonia to reduce graphene oxides (GO) and hydrogen tetrachloroaurate (Au precursor). The structure and composition of the graphene-AuNPs nanocomposites were studied by means of ultraviolet visible (UV) absorption spectra, X-ray photoelectron spectroscopy (XPS) and Transmission electron microscopy (TEM). The AuNPs are well-dispersed on graphene nanosheets in narrow size range. The nanocomposites have excellent electrocatalytical properties for catalytic reduction of O(2) and H(2)O(2).
authors.affiliation: Engineering Laboratory for Modern Analytical Techniques, c/o State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
authors.forename: Jianguo
authors.initials: J
authors.lastname: Hu
authors.forename: Fenghua
authors.initials: F
authors.lastname: Li
authors.forename: Kaikai
authors.initials: K
authors.lastname: Wang
authors.forename: Dongxue
authors.initials: D
authors.lastname: Han
authors.forename: Qixian
authors.initials: Q
authors.lastname: Zhang
authors.forename: Junhua
authors.initials: J
authors.lastname: Yuan
authors.forename: Li
authors.initials: L
authors.lastname: Niu
mesh_terms: D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D005898:Glass / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D006108:Graphite / Q000138:chemical synthesis* / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006868:Hydrolysis; D007700:Kinetics; D053768:Metal Nanoparticles / Q000737:chemistry*; D008709:Methenamine / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*
chemical_list: D002244:Carbon; D006046:Gold; D006108:Graphite; D006861:Hydrogen Peroxide; D008709:Methenamine; D010100:Oxygen