Graphene surface modification method based on dry method

• Main Authors: HUO FUPENG, WANG HUIGAI, ZHANG MENG, ZHU YAOMIN, YAO HUAI, ZHANG KEKE, ZHAO PEIFENG
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2017
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention relates to a graphene surface modification method based on a dry method. The method comprises the following steps: S1, adding graphene oxide into a concentrated nitric acid solution, performing ultrasonic dispersion and filtration, repeatedly washing a filter cake with deionized water to be neutral to obtain the roughened graphene oxide; S2, putting the roughened graphene oxide in the S1 into a ball mill to be ball-milled, and then pouring silver acetate into the ball mill to be mixed with graphene oxide and ball-milling the mixture again to obtain a graphene oxide/silver acetate mixture; S3, putting the graphene oxide/silver acetate mixture into a muffle furnace to be heated and introducing a nitrogen atmosphere to obtain Ag particle-loading graphene oxide; and S4, adding the Ag particle-loading graphene oxide after ultrasonic treatment into hydrazine hydrate to be reduced to prepare Ag particles, the grain sizes of which are 30-100nm, and uniformly dispersing the Ag particles to the surface of