Oxygen reduction reaction catalyst
AssigneesJohnson Matthey Fuel Cells Limited, Centre National De La Recherche Scientifique, Universite Montpellier
InventorsMarie Josephe Vanessa ARMEL, Stephen Charles BENNETT, Frederic Christophe JAQUEN, Deborah JONES, Sheena HINDOCHA, Fabrice SALLES
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Abstract
A method for the manufacture of an oxygen reduction reaction (ORR) catalyst, the method comprising; providing a metal organic framework (MOF) material having a specific internal pore volume of 0.7 cm3g−1 or greater; providing a source of iron and/or cobalt; pyrolysing the MOF material together with the source of iron and/or cobalt to form the catalyst, wherein the MOF material comprises nitrogen and/or the MOF material is pyrolysed together with a source of nitrogen and the source of iron and/or cobalt is disclosed.
Claims31
A method for the manufacture of an oxygen reduction reaction (ORR) catalyst, the method comprising:
- pyrolysing a metal organic framework (MOF) material having a specific internal pore volume of 0.7 cm3g−1 or greater together with a source of iron and/or cobalt to form the catalyst,
- wherein the MOF material comprises nitrogen and/or the MOF material is pyrolysed together with a source of nitrogen and the source of iron and/or cobalt.
A method for the manufacture of an ORR catalyst, the method comprising:
- pyrolysing a metal organic framework (MOF) material having an isotropic cavity shape with a largest cavity size of 12 Å or greater together with a source of iron and/or cobalt to form the catalyst,
- wherein the MOF material comprises nitrogen and/or the MOF material is pyrolysed together with a source of nitrogen and the source of iron and/or carbon.
A method for the manufacture of an oxygen reduction reaction (ORR) catalyst, the method comprising:
- combining a metal organic framework (MOF) ligand and MOF metal source with a source of iron and/or cobalt and optionally a source of nitrogen;
- applying a source of energy sufficient to provide a catalyst precursor comprising a MOF material having a specific internal pore volume of 0.7 cm3g−1 or greater;
- and pyrolysing the catalyst precursor to provide the ORR catalyst.
A method for the manufacture of an oxygen reduction reaction (ORR) catalyst, the method comprising:
- combining a metal organic framework (MOF) ligand and MOF metal source with a source of iron and/or cobalt and optionally providing a source of nitrogen;
- applying a source of energy sufficient to provide a catalyst precursor comprising a MOF material having an isotropic cavity shape with a largest cavity size of 12 Å or greater;
- and pyrolysing the catalyst precursor to provide the ORR catalyst.
Dependencies are inferred from the claim text.