A method for preparing reduced graphene oxide in a gas-solid phase one-step method
By using a one-step gas-solid phase method, the reduction and powder generation of graphene oxide can be completed simultaneously at high temperature using CO and H2 gases generated in a combustion furnace. This solves the problems of high cost and low efficiency in the reduction of graphene oxide in existing technologies, and realizes efficient and low-cost preparation of graphene oxide.
CN116692840BActive Publication Date: 2026-06-02SHANDONG HENGHUA NEW MATERIAL CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG HENGHUA NEW MATERIAL CO LTD
- Filing Date
- 2022-02-28
- Publication Date
- 2026-06-02
Smart Images
Figure CN116692840B_ABST
Abstract
The application discloses a method for preparing reduced graphene oxide by a gas-solid phase one-step method and belongs to the technical field of graphene preparation. The method comprises the following steps: step 1, a certain proportion of combustible gas and air is introduced into a combustion furnace to make the combustible gas and air have an incomplete combustion reaction, and high-temperature gas containing carbon monoxide and hydrogen is generated; step 2, the high-temperature gas of the combustion furnace is used for preparing graphene oxide powder and thermal reduction reaction of graphite intercalation compounds; and step 3, the reactants in step 2 are cooled, then gas-solid separation is carried out, and the obtained solid is graphene powder. The combustible gas is convenient and cheap, a high-temperature and reduction gas atmosphere is created, the graphite intercalation compound continuously completes the powder preparation and the reduction of graphene oxide in a closed environment, the production of the reduced graphene oxide has ideal production efficiency and product yield, and the production cost is relatively low.
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