METHOD FOR MANUFACTURING VERTICALLY ALIGNED CARBON NANOTUBES, AND ELECTROCHEMICAL CAPACITORS USING THESE NANOTUBES AS ELECTRODES

A composite comprises vertically aligned carbon nanotubes (VACNT) on a substrate and additional disordered carbon deposited on the outer face of the nanotubes. This additional carbon is not amorphous but comprises graphitic domains. This composite can be prepared by a chemical vapor deposition (CVD)...

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Main Authors DESCARPENTRIES, Jérémie, DESGRANGES, Cédric, BOISSET, Aurélien, PINAULT, Mathieu, GHAMOUSS, Fouad, MAYNE, Martine, TRAN VAN, François
Format Patent
LanguageEnglish
French
German
Published 08.07.2020
Subjects
BASIC ELECTRIC ELEMENTS
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A composite comprises vertically aligned carbon nanotubes (VACNT) on a substrate and additional disordered carbon deposited on the outer face of the nanotubes. This additional carbon is not amorphous but comprises graphitic domains. This composite can be prepared by a chemical vapor deposition (CVD) process in the presence of a catalyst on a metal substrate at atmospheric pressure. It can be used as an electrode in electronic and electrotechnical devices, such as supercapacitors.
Bibliography:Application Number: EP20180785419