Petroliam Nasional has been granted a patent for a method to convert carbon material to graphene. The process involves subjecting an amorphous carbon pellet to an electrochemical reaction in a molten inorganic material containing an alkaline earth halide, resulting in a graphene pellet with graphene flakes. GlobalData’s report on Petroliam Nasional gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Petroliam Nasional, Bioethanol production GMOs was a key innovation area identified from patents. Petroliam Nasional's grant share as of May 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.
Method of converting carbon material to graphene using electrochemical reaction
A recently granted patent (Publication Number: US12000055B2) discloses a method for converting a carbon material into graphene. The process involves subjecting an amorphous carbon material pellet submerged in a molten inorganic material containing an alkaline earth halide to an electrochemical reaction in an inert atmosphere. This reaction results in the conversion of the amorphous carbon material pellet into a graphene pellet comprising graphene flakes. The method further includes breaking up the pellet to obtain individual and/or aggregates of graphene flakes with specific properties.
The patent outlines various aspects of the method, including the temperature range for maintaining the molten inorganic material, the specific alkaline earth halide used, the inclusion of an alkali halide in the material, the voltage range for the electrochemical reaction, and the duration of the process. Additionally, the patent specifies the types of amorphous carbon materials that can be used, such as biomass, coal, activated carbon, coke, and carbon black, with petroleum coke being a specific example. The method also details the use of an inert atmosphere, the formation of a cathode for the electrochemical reaction, and the inclusion of a graphite anode as a counter electrode.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
