Method for preparing graphene/ superfine cobalt oxide granule compound electrode material

• Main Authors: Yang Shuhua, Cao Bingqiang, Sun Jing
• Format: Patent
• Language: Chinese; English
• Published: 24.08.2016
• 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 liquid laser irradiation/ ablation preparation method of a graphene/ superfine Co3O4 granule compound electrode material. The method specifically comprises the following steps: sufficiently mixing graphene oxide and a precursor of Co3O4 in different proportions in different solvents, and then preparing the graphene/ superfine Co3O4 granule compound material under different pulse laser conditions. The graphene/ superfine Co3O4 granule compound material shows excellent specific volumetric capacity as a super-capacitor electrode material. The preparation method has the advantages of novelty, simplicity in operation, low preparation cost, high product purity and the like. 本发明公开了种石墨烯/超微CoO颗粒复合电极材料的液相激光辐照/烧蚀制备方法。具体工艺步骤如下：将不同比例的氧化石墨烯和CoO的前驱体在不同溶剂中进行充分混合，随后在不同的脉冲激光条件下，制得石墨烯/超微CoO颗粒复合材料。本发明的石墨烯/超微CoO颗粒复合材料用作超级电容器电极材料时，表现出优异的体积比容量。本制备方法具有新颖、操作简单、制备成本低、产物纯度高等优点。