C2CNT LLC

The embodiments of the present disclosure relate to a method and apparatus for producing a CNM product that may comprise carbon nanotubes (CNTs). The method and apparatus employ carbon dioxide (CO 2 ) and a carbonate electrolyte that is lithium-free as reactants in an electrolysis reaction in order to make CNTs. In some embodiments of the present disclosure, a graphene-defect agent may be introduced into the electrolysis reaction.

A method for producing a carbon nanomaterial (CNM) product includes: heating an electrolyte media to obtain a molten electrolyte media; positioning the molten electrolyte media between a high-nickel content anode and a cathode of an electrolytic cell; introducing a source of carbon into the electrolytic cell; applying an electric current to the cathode and the anode in the electrolytic cell; and collecting the CNM product from the cathode, in which the CNM product comprises a minimal relative-amount of at least 70 wt %, as compared to a total weight of the CNM product, of hollow nano-onion product, in which the high-nickel content anode is made of pure nickel or an alloy that comprises greater than 50 wt % nickel.

The embodiments of the present disclosure relate to a method, system and composition producing a magnetic carbon nanomaterial product that may comprise carbon nanotubes (CNTs) at least some of which are magnetic CNTs (mCNTs). The method and apparatus employ carbon dioxide (CO 2 ) as a reactant in an electrolysis reaction in order to make mCNTs. In some embodiments of the present disclosure, a magnetic additive component is included as a reactant in the method and as a portion of one or more components in the system or composition to facilitate a magnetic material addition process, a carbide nucleation process or both during the electrosynthesis reaction for making magnetic carbon nanomaterials.

A method for producing a carbon nanomaterial (CNM) product comprises: heating an electrolyte media to obtain a molten electrolyte media; positioning the molten electrolyte media between an anode and a cathode of an electrolytic cell, in which the anode comprises a noble metal and the cathode comprises copper and nickel; introducing a source of carbon into the electrolytic cell; introducing a nickel-containing additive into the electrolyte media before the step of heating or introducing the nickel-containing additive into the molten electrolyte media, in which the iron-free additive is added in an amount of between 0.05 wt % and 2 wt %, relative to the amount of the electrolyte media or the molten electrolyte media; applying an electrical current to the cathode and the anode in the electrolytic cell; and collecting the CNM product from the cathode.

The embodiments of the present disclosure relate to a method and apparatus for producing a carbon nanomaterial product (CNM) product that may comprise carbon nanotubes and various other allotropes of nanocarbon. The method and apparatus employ a consumable carbon dioxide (CO 2 ) and a renewable carbonate electrolyte as reactants in an electrolysis reaction in order to make CNTs. In some embodiments of the present disclosure, operational conditions of the electrolysis reaction may be varied in order to produce the CNM product with a greater incidence of a desired allotrope of nanocarbon or a desired combination of two or more allotropes.

A process for the separation of electrolyte from the carbon in a solid carbon/electrolyte cathode product formed at the cathode during molten carbonate electrolysis. The processes allow for easy separation of the solid carbon product from the electrolyte without any observed detrimental effect on the structure and/or stability of the resulting solid carbon nanomaterial.

The present invention relates to the production of graphene from CO 2 through electrolysis and exfoliation processes. One embodiment is a method for producing graphene comprising (i) performing electrolysis between an electrolysis anode and an electrolysis cathode in a molten carbonate electrolyte to generate carbon nanomaterial on the cathode, and (ii) electrochemically exfoliating the carbon nanomaterial from a second anode to produce graphene. The exfoliating step produces graphene in high yield than thicker, conventional graphite exfoliation reactions. CO 2 can be the sole reactant used to produce the valuable product as graphene. This can incentivize utilization of CO 2 , and unlike alternative products made from CO 2 such as carbon monoxide or other fuels such as methane, use of the graphene product does not release this greenhouse gas back into the atmosphere.

The embodiments of the present disclosure relate to a method, system and composition producing a magnetic carbon nanomaterial product that may comprise carbon nanotubes (CNTs) at least some of which are magnetic CNTs (mCNTs). The method and apparatus employ carbon dioxide (CO 2 ) as a reactant in an electrolysis reaction in order to make mCNTs. In some embodiments of the present disclosure, a magnetic additive component is included as a reactant in the method and as a portion of one or more components in the system or composition to facilitate a magnetic material addition process, a carbide nucleation process or both during the electrosynthesis reaction for making magnetic carbon nanomaterials.

The embodiments of the present disclosure relate to a method and apparatus for producing a carbon nanomaterial product (CNM) product that may comprise carbon nanotubes and various other allotropes of nanocarbon. The method and apparatus employ a consumable carbon dioxide (CO 2 ) and a renewable carbonate electrolyte as reactants in an electrolysis reaction in order to make CNTs. In some embodiments of the present disclosure, operational conditions of the electrolysis reaction may be varied in order to produce the CNM product with a greater incidence of a desired allotrope of nanocarbon or a desired combination of two or more allotropes.

The present invention relates to the production of graphene from CO 2 through electrolysis and exfoliation processes. One embodiment is a method for producing graphene comprising (i) performing electrolysis between an electrolysis anode and an electrolysis cathode in a molten carbonate electrolyte to generate carbon nanomaterial on the cathode, and (ii) electrochemically exfoliating the carbon nanomaterial from a second anode to produce graphene. The exfoliating step produces graphene in high yield than thicker, conventional graphite exfoliation reactions. CO 2 can be the sole reactant used to produce the valuable product as graphene. This can incentivize utilization of CO 2 , and unlike alternative products made from CO 2 such as carbon monoxide or other fuels such as methane, use of the graphene product does not release this greenhouse gas back into the atmosphere.