Preparation method of tubular manganese dioxide array composite electrode material

• Main Authors: PI XIAOQIANG, LIU XINGXING, WANG SHENGGAO, CHEN RUI, ZHANG WEI, CUI LIJIA
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2016
• 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 preparation method of tubular manganese dioxide array composite electrode material. The preparation method comprises the following steps that a casting film solution containing carbon nanotubes is uniformly coated on a clean metal sheet so that an organic microfiltration film with uniform apertures is formed on the metal sheet; the metal sheet is immersed in a 0.1-6mol/L manganese containing solution and then processed for 30-200min under high temperature of 200-400 DEG C so that manganese dioxide with a directional tubular array structure is formed on the metal sheet; and the metal sheet is arranged in the atmosphere of inert gas to be processed for 30-180min under high temperature of 400-1000 DEG C so that the manganese dioxide/carbon nanotube/carbon composite electrode material is formed on the metal sheet. Manganese dioxide has the directional tubular array structure, and the carbon nanotubes/carbon fills around manganese dioxide. Conductivity of the composite electrode material