Preparation method of polypyrrole/graphene/tin dioxide composite material

• Main Authors: HUANG LIEKE, FANG DONG, FAN XIN, CHEN WEILIANG, PANG SHUHUA
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a preparation method of a polypyrrole/graphene/tin dioxide composite material. The preparation method includes: using a hydrothermal method to prepare polypyrrole/graphene oxide compound colloid, namely utilizing static tension between positively charged nitrogen on a polypyrrole chain segment and epoxy bonds on the surface of graphene oxide to adsorb a lot of graphene oxide on the surface of polypyrrole to effectively stop agglomeration of graphene oxide; using a SnCl2 solution to reduce graphene oxide in the colloid into graphene; adopting a hydrothermal method to adsorb to generate Sn (IV) on the surface of graphene containing a small amount of oxygen-containing bonds; adding a sodium hydroxide solution for reaction at 180 DEG C to prepare a three-dimensional porous netty polypyrrole/graphene/tin dioxide composite material. The preparation method is simple in preparation process, environment-friendly and reliable, the composite material obtained by the method has regular spatial str