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Transition metal nitride materials For supercapacitor applications

Transition metal nitride materials For supercapacitor applications
Transition metal nitride materials For supercapacitor applications
There is a pressing need to develop more environmentally friendly ways to generate and store electrical energy. Current technology for this is limited by the speed at which power storage can absorb and store the energy generated. To this end, transition metal nitride materials have been investigated with the aim of creating a nitride based supercapacitor.

Ti(NEt2)4 and V(NEt2)4 were prepared and there, and Ta(NMe2)5’s, sol-gel chemistry was explored. These sols were infiltrated into multilayer templates, composed of hexagonally close packed opalescent crystals of DVB crosslinked amidine capped polystyrene spheres and heated under flowing ammonia to give metal nitride inverse opals exhibiting long range order and specific capacitances of upto 2 F g-1. Solid (Ti,V)N solutions were also synthesised and tested electrochemically as supercapacitor electrode materials.

TiN and VN foils were prepared and subjected to a range of surface treatments. Their specific capacitances at a range of scan rates were measured to ascertain which surface treatment gave the highest capacitive performance.
University of Southampton
Gray, Benjamin
71191ba3-7aa6-4612-aaf9-f24b8b4f1119
Gray, Benjamin
71191ba3-7aa6-4612-aaf9-f24b8b4f1119
Hector, Andrew
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5

Gray, Benjamin (2015) Transition metal nitride materials For supercapacitor applications. University of Southampton, Doctoral Thesis, 190pp.

Record type: Thesis (Doctoral)

Abstract

There is a pressing need to develop more environmentally friendly ways to generate and store electrical energy. Current technology for this is limited by the speed at which power storage can absorb and store the energy generated. To this end, transition metal nitride materials have been investigated with the aim of creating a nitride based supercapacitor.

Ti(NEt2)4 and V(NEt2)4 were prepared and there, and Ta(NMe2)5’s, sol-gel chemistry was explored. These sols were infiltrated into multilayer templates, composed of hexagonally close packed opalescent crystals of DVB crosslinked amidine capped polystyrene spheres and heated under flowing ammonia to give metal nitride inverse opals exhibiting long range order and specific capacitances of upto 2 F g-1. Solid (Ti,V)N solutions were also synthesised and tested electrochemically as supercapacitor electrode materials.

TiN and VN foils were prepared and subjected to a range of surface treatments. Their specific capacitances at a range of scan rates were measured to ascertain which surface treatment gave the highest capacitive performance.

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Transition metal nitrides for supercapacitors B Gray - Version of Record
Available under License University of Southampton Thesis Licence.
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Published date: July 2015

Identifiers

Local EPrints ID: 433321
URI: http://eprints.soton.ac.uk/id/eprint/433321
PURE UUID: fa30f133-30e6-450a-a03a-5596b4fadb60
ORCID for Andrew Hector: ORCID iD orcid.org/0000-0002-9964-2163

Catalogue record

Date deposited: 14 Aug 2019 16:30
Last modified: 15 Aug 2019 04:01

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