种二硫化钼/石墨烯空心复合微球及其制备方法

• Format: Patent
• Language: Chinese
• Published: 30.03.2018
• 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

本发明涉及种具有层次性多孔空心微球状结构的二硫化钼/石墨烯复合材料及其合成方法，属于微纳米复合材料制备与合成的技术领域。首先制备二氧化硅微球；然后在其表面组装层阳离子聚电解质使之正电化；接下来在正电化的二氧化硅微球表面组装层氧化石墨烯得到二氧化硅/氧化石墨烯复合微球；然后采用水热法在其表面沉积、生长二硫化钼纳米片并同时将包覆的氧化石墨烯还原成石墨烯进而得到二氧化硅/石墨烯/二硫化钼复合微球；最后，通过水热法用过量氢氟酸将其中的二氧化硅内核去除从而合成出二硫化钼/石墨烯空心复合微球。该复合材料作为超级电容器电极材料使用时具有大的比电容和优异的循环充放电稳定性，展示出了广阔的应用前景。 The invention relates to a molybdenum disulfide/graphene hollow composite microsphere with a layered porous hollow microsphere-shaped structure, and a synthetic method for the molybdenum disulfide/graphene hollow composite microsphere, and belongs to the technical field of micro-nano composite material preparation and synthesis. The method comprises the steps: firstly preparing a silicon oxide microsphere; secondly assembling a positive ion polyelectrolyte layer on the surface of the silicon oxide microsphere, and enabling the silicon oxide microsphere to be positively electrified; thirdly assembling a oxidized graphene layer on the surface of the positively electrified silicon oxide microsphere, and obtaining a silicon