Carbon nanomaterial for use as a catalyst
AssigneeUniversity of Tartu
InventorsIvar Kruusenberg, Aleksandrs Volperts, Aivars Zurins, Galina Dobele
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Abstract
A method for producing a carbon nanomaterial for use as a catalyst, including the steps of: (a) providing a precursor which is a source of lignin, (b) heating the precursor to an activation temperature from 700° C. to 800° C. in the presence of an alkali solution in order to produce an activated precursor, and (c) reacting the activated precursor with a source of nitrogen atoms in order to dope the activated precursor with nitrogen atoms, wherein the precursor is heated in step (b) to the activation temperature at a rate of at least 500° C. per minute.
Claims20
A method for producing a carbon nanomaterial for use as a catalyst, including the steps of:
- (a) providing a precursor which is a source of lignin,
- (b) heating the precursor to an activation temperature from 700° C. to 800° C. in the presence of an alkali solution in order to produce an activated precursor, and
- (c) reacting the activated precursor with a source of nitrogen atoms in order to dope the activated precursor with nitrogen atoms,
- wherein the precursor is heated in step (b) to the activation temperature at a rate of at least 500° C. per minute.
A method for producing a carbon nanomaterial for use as a catalyst, including the steps of:
- (a) providing a precursor which is a source of lignin,
- (b) heating the precursor to an activation temperature from 700° C. to 800° C. in the presence of an alkali solution in order to produce an activated precursor, and
- (c) reacting the activated precursor at a temperature from 700-900° C. with a source of nitrogen atoms in order to dope the activated precursor with nitrogen atoms,
- (d) heating the doped precursor of step (c) in an inert atmosphere to a temperature from 700-900° C.
- wherein the precursor is heated in step (b) to the activation temperature at a rate of at least 500° C. per minute.
A method for producing a fuel cell including the steps of:
- (1) producing a carbon nanomaterial for use as a catalyst by carrying out a method including the steps of:
- (a) providing a precursor which is a source of lignin,
- (b) heating the precursor to an activation temperature from 700° C. to 800° C. in the presence of an alkali solution in order to produce an activated precursor, and
- (c) reacting the activated precursor with a source of nitrogen atoms in order to dope the activated precursor with nitrogen atoms,
- wherein the precursor is heated in step (b) to the activation temperature at a rate of at least 500° C. per minute, and
- (2) incorporating said carbon nanomaterial in a fuel cell as a catalyst.
Dependencies are inferred from the claim text.