▎ 摘　　要

NOVELTY - A three-dimensional printing ink material is prepared by adding graphene oxide suspension to manganese-ethanolamine composite, stirring, passing oxygen, hydrolyzing to form unstable manganese hydroxide, stirring and dispersing in presence of oxygen to realize co-intercalation of trimanganese tetraoxide into graphene oxide nanosheets and dispersing in solution phase, where the manganese-ethanolamine composite is prepared by uniformly mixing manganese sulfate and ethanolamine in a mass ratio of 3:(10-40) and processing into reddish brown composite, graphene oxide suspension is an aqueous solution, in which graphene oxide is uniformly dispersed, concentration of the graphene oxide is 0.5-2 g/ml, volume ratio of the graphene oxide suspension and manganese-ethanolamine composite is (10-12):3 and the method involves adding graphene oxide suspension to manganese-ethanolamine composite, performing mechanical agitation, stirring at 500-1000 revolutions per minute and reacting for 20-48 hours. USE - Three-dimensional printing ink material for preparing micro-supercapacitor (claimed). ADVANTAGE - The three-dimensional printing ink material comprises trimanganese tetraoxide-graphene oxide composite with excellent electrochemical properties and better conductivity. The micro-supercapacitor has excellent performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for preparing three-dimensional printing ink material (2) a use of three-dimensional printing ink material for preparing micro-supercapacitor.