Method The method for the preparation of graphene or graphenic materials films according to claim 1 characterized in that wherein the coating of the substrate with the aqueous solution of the biopolymer is carried out through immersion of the substrate in said solution or by using the spin coating technique.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is an alginate of any origin or a derivative of alginate.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is chitosan of any origin, giving rise to a graphene film or graphenic material doped with nitrogen.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a carragenate of any origin.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a naturally occurring starch.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the non-metal substrate is quartz, glass, ceramics, ceramic paste or plastic.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal decomposition of the biopolymer is carried out at a temperature between 400 ° C and 650 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal treatment is carried out in two stages, both in the absence of oxygen, the first stage at a temperature below 300 ° C in the presence of humidity and the second stage at a temperature below 650 °C.

(Currently amended) Method A method for the preparation of graphene or graphenic materials films comprising the following stages:-preparation of an aqueous solution of a noncrystallizable water-soluble biopolymer capable of forming hydrogels, or a derivative of said biopolymer at the suitable pH, -_ according to claim 1 characterized in that it includes an additional stage before carrying out the coating of the substrate with biopolymer solution consisting of the deposition of a metal layer with a thickness of less than 10 nm on the surface of the substrate s-coating of the metal layer with the aqueous solution of the biopolymer prepared in the previous stage,-conditioning of the aqueous solution of the biopolymer by means of a hydrothermal process wherein the coated surface is subjected to a flow of nitrogen saturated with water vapor at the temperature of between 100 and 250 °C for at least 30 minutes,-thermal decomposition of the biopolymer deposited on the substrate in the absence of oxygen at temperatures equal to or below 1200 °C to form the graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thickness of the deposited biopolymer solution film has a thickness of 1 to 1000 nm, depending on the concentration of the biopolymer in the solution.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the graphene or graphenic material film is a first graphene or graphenic material film, and wherein, once the first graphene or graphenic material [[layer]] film is formed, it is proceeded to the coating with a second layer of biopolymer or biopolymer derivative solution which is subjected to a second treatment of thermal decomposition to form a second graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is quartz and the thermal decomposition of the biopolymer is carried out at 850 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is a ceramic paste and the thermal decomposition of the biopolymer is carried out at temperatures of 1200 °C.

Graphenic substrate prepared by the method described in claim 1 characterized by comprising a layer of non-metal substrate selected from the group comprising quartz, glass, ceramic, ceramics paste, and plastic, and one or several graphene square. withdrawn

Method The method for the preparation of graphene or graphenic materials films according to claim 1 characterized in that wherein the coating of the substrate with the aqueous solution of the biopolymer is carried out through immersion of the substrate in said solution or by using the spin coating technique.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is an alginate of any origin or a derivative of alginate.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is chitosan of any origin, giving rise to a graphene film or graphenic material doped with nitrogen.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a carragenate of any origin.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a naturally occurring starch.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the non-metal substrate is quartz, glass, ceramics, ceramic paste or plastic.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal decomposition of the biopolymer is carried out at a temperature between 400 ° C and 650 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal treatment is carried out in two stages, both in the absence of oxygen, the first stage at a temperature below 300 ° C in the presence of humidity and the second stage at a temperature below 650 °C.

(Currently amended) Method A method for the preparation of graphene or graphenic materials films comprising the following stages:-preparation of an aqueous solution of a noncrystallizable water-soluble biopolymer capable of forming hydrogels, or a derivative of said biopolymer at the suitable pH, -_ according to claim 1 characterized in that it includes an additional stage before carrying out the coating of the substrate with biopolymer solution consisting of the deposition of a metal layer with a thickness of less than 10 nm on the surface of the substrate s-coating of the metal layer with the aqueous solution of the biopolymer prepared in the previous stage,-conditioning of the aqueous solution of the biopolymer by means of a hydrothermal process wherein the coated surface is subjected to a flow of nitrogen saturated with water vapor at the temperature of between 100 and 250 °C for at least 30 minutes,-thermal decomposition of the biopolymer deposited on the substrate in the absence of oxygen at temperatures equal to or below 1200 °C to form the graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thickness of the deposited biopolymer solution film has a thickness of 1 to 1000 nm, depending on the concentration of the biopolymer in the solution.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the graphene or graphenic material film is a first graphene or graphenic material film, and wherein, once the first graphene or graphenic material [[layer]] film is formed, it is proceeded to the coating with a second layer of biopolymer or biopolymer derivative solution which is subjected to a second treatment of thermal decomposition to form a second graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is quartz and the thermal decomposition of the biopolymer is carried out at 850 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is a ceramic paste and the thermal decomposition of the biopolymer is carried out at temperatures of 1200 °C.

Graphenic substrate prepared by the method described in claim 1 characterized by comprising a layer of non-metal substrate selected from the group comprising quartz, glass, ceramic, ceramics paste, and plastic, and one or several graphene square. withdrawn

Method The method for the preparation of graphene or graphenic materials films according to claim 1 characterized in that wherein the coating of the substrate with the aqueous solution of the biopolymer is carried out through immersion of the substrate in said solution or by using the spin coating technique.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is an alginate of any origin or a derivative of alginate.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is chitosan of any origin, giving rise to a graphene film or graphenic material doped with nitrogen.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a carragenate of any origin.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a naturally occurring starch.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the non-metal substrate is quartz, glass, ceramics, ceramic paste or plastic.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal decomposition of the biopolymer is carried out at a temperature between 400 ° C and 650 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal treatment is carried out in two stages, both in the absence of oxygen, the first stage at a temperature below 300 ° C in the presence of humidity and the second stage at a temperature below 650 °C.

(Currently amended) Method A method for the preparation of graphene or graphenic materials films comprising the following stages:-preparation of an aqueous solution of a noncrystallizable water-soluble biopolymer capable of forming hydrogels, or a derivative of said biopolymer at the suitable pH, -_ according to claim 1 characterized in that it includes an additional stage before carrying out the coating of the substrate with biopolymer solution consisting of the deposition of a metal layer with a thickness of less than 10 nm on the surface of the substrate s-coating of the metal layer with the aqueous solution of the biopolymer prepared in the previous stage,-conditioning of the aqueous solution of the biopolymer by means of a hydrothermal process wherein the coated surface is subjected to a flow of nitrogen saturated with water vapor at the temperature of between 100 and 250 °C for at least 30 minutes,-thermal decomposition of the biopolymer deposited on the substrate in the absence of oxygen at temperatures equal to or below 1200 °C to form the graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thickness of the deposited biopolymer solution film has a thickness of 1 to 1000 nm, depending on the concentration of the biopolymer in the solution.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the graphene or graphenic material film is a first graphene or graphenic material film, and wherein, once the first graphene or graphenic material [[layer]] film is formed, it is proceeded to the coating with a second layer of biopolymer or biopolymer derivative solution which is subjected to a second treatment of thermal decomposition to form a second graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is quartz and the thermal decomposition of the biopolymer is carried out at 850 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is a ceramic paste and the thermal decomposition of the biopolymer is carried out at temperatures of 1200 °C.

Graphenic substrate prepared by the method described in claim 1 characterized by comprising a layer of non-metal substrate selected from the group comprising quartz, glass, ceramic, ceramics paste, and plastic, and one or several graphene square. withdrawn

Method The method for the preparation of graphene or graphenic materials films according to claim 1 characterized in that wherein the coating of the substrate with the aqueous solution of the biopolymer is carried out through immersion of the substrate in said solution or by using the spin coating technique.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is an alginate of any origin or a derivative of alginate.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is chitosan of any origin, giving rise to a graphene film or graphenic material doped with nitrogen.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a carragenate of any origin.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the biopolymer is a naturally occurring starch.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the non-metal substrate is quartz, glass, ceramics, ceramic paste or plastic.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal decomposition of the biopolymer is carried out at a temperature between 400 ° C and 650 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thermal treatment is carried out in two stages, both in the absence of oxygen, the first stage at a temperature below 300 ° C in the presence of humidity and the second stage at a temperature below 650 °C.

(Currently amended) Method A method for the preparation of graphene or graphenic materials films comprising the following stages:-preparation of an aqueous solution of a noncrystallizable water-soluble biopolymer capable of forming hydrogels, or a derivative of said biopolymer at the suitable pH, -_ according to claim 1 characterized in that it includes an additional stage before carrying out the coating of the substrate with biopolymer solution consisting of the deposition of a metal layer with a thickness of less than 10 nm on the surface of the substrate s-coating of the metal layer with the aqueous solution of the biopolymer prepared in the previous stage,-conditioning of the aqueous solution of the biopolymer by means of a hydrothermal process wherein the coated surface is subjected to a flow of nitrogen saturated with water vapor at the temperature of between 100 and 250 °C for at least 30 minutes,-thermal decomposition of the biopolymer deposited on the substrate in the absence of oxygen at temperatures equal to or below 1200 °C to form the graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the thickness of the deposited biopolymer solution film has a thickness of 1 to 1000 nm, depending on the concentration of the biopolymer in the solution.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the graphene or graphenic material film is a first graphene or graphenic material film, and wherein, once the first graphene or graphenic material [[layer]] film is formed, it is proceeded to the coating with a second layer of biopolymer or biopolymer derivative solution which is subjected to a second treatment of thermal decomposition to form a second graphene or graphenic material film.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is quartz and the thermal decomposition of the biopolymer is carried out at 850 °C.

Method The method for the preparation of graphene or graphenic materials films according to claim 1 wherein the surface is a ceramic paste and the thermal decomposition of the biopolymer is carried out at temperatures of 1200 °C.

Graphenic substrate prepared by the method described in claim 1 characterized by comprising a layer of non-metal substrate selected from the group comprising quartz, glass, ceramic, ceramics paste, and plastic, and one or several graphene square. withdrawn