▎ 摘　　要

NOVELTY - Preparation of arched graphene three-dimensional network, involves taking three-dimensional copper mesh as template, and using nickel-vapor-assisted graphene three-dimensional network gas phase chemical deposition growth method for growing, then cooling to room temperature, and obtaining three-dimensional network of graphene grown on three-dimensional copper network template, (ii) placing the three-dimensional network of graphene on a surface of semi-cured soft gel, performing natural settlement, and obtaining three-dimensional network of graphene semi-wrapped copper-containing core. USE - Preparation of arched graphene three-dimensional network (claimed). ADVANTAGE - The three-dimensional network of graphene grown on the three-dimensional copper-catalyzed template has excellent self-supporting property and optimal electrical transport performance for strain sensing. DETAILED DESCRIPTION - Preparation of arched graphene three-dimensional network, involves (i) taking three-dimensional copper mesh as a template, and using nickel-vapor-assisted graphene three-dimensional network gas phase chemical deposition growth method for growing for 30-60 minutes under the conditions of temperature of 990-1020 degrees C, methane flow rate of 20-50 sccm and hydrogen flow rate of 5-15 sccm, then cooling to room temperature, and obtaining three-dimensional network of graphene grown on three-dimensional copper network template, (ii) placing the three-dimensional network of graphene on a surface of semi-cured soft gel, performing natural settlement for 5-8 minutes, and obtaining three-dimensional network of graphene semi-wrapped copper-containing core, (iii) removing the copper core in the graphene three-dimensional network by continuously injecting an etching liquid, (iv) cleaning after removing the copper core from graphene three-dimensional network, and drying to obtain arched graphene three-dimensional network.