Non-Precious Metal/Metal Oxides & Nitrogen Doped Reduced Graphene Oxide based Alkaline Water Electrolysis Cell
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Non-Precious Metal/Metal Oxides & Nitrogen Doped Reduced
Graphene Oxide based Alkaline Water Electrolysis Cell
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| Creator |
Vineesh, T.V.
Archana, S. Rajappa, S. Pal, S. Alwarappan, S. Narayanan, TN. |
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| Subject |
Electrodics and Electrocatalysis
Electroorganic |
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| Description |
Development of strategies for water electrolysis half-cell
reaction catalysts without the use of precious metals/metal oxides and the synergistic compilation of catalysts for the full cell fabrication are receiving tremendous scientific attention. Here, alkaline water electrolysis full cells are developed with novel spongy catalysts for both anode and cathode reactions - such as Co3O4-nitrogen doped reduced graphene oxide (Co3O4/NrGO) composite sponge for
Oxygen Evolution Reaction (OER) and nickel-nitrogen doped
reduced graphene oxide (NiNrGO) for hydrogen evolution reaction
(HER). The performance of OER catalyst developed - Co3O4/NrGO,
is compared with the commercial one (IrO2) in alkaline medium with
a common benchmark cathode catalyst (Pt) and an augmented full
cell performance is shown from this novel combination (320 mAcm-2
at an operating voltage of 1.9 V for Co3O4/NrGO, while 199 mA/cm-2 for IrO2). A water electrolysis full cell is developed without the use of HER catalyst Pt rather using a porous spongy catalyst - NiNrGO,having a low operating potential with a high stability (270 mAcm-2 at an operating voltage of 1.9 V with a stability tested for more than 9 hours), and this works opens up the possibilities of designing lightweight water electrolysis cells without the use of commercial benchmark precious catalysts.
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| Publisher |
Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
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| Date |
2017
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3204/1/2017-002-Narayanan_et_al-2017-ChemCatChem.pdf
Vineesh, T.V. and Archana, S. and Rajappa, S. and Pal, S. and Alwarappan, S. and Narayanan, TN. (2017) Non-Precious Metal/Metal Oxides & Nitrogen Doped Reduced Graphene Oxide based Alkaline Water Electrolysis Cell. CHEMCATCHEM. ISSN 1867-3880 (In Press) |
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| Relation |
http://cecri.csircentral.net/3204/
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