dc.contributor.author | JORGE SOBRIDO, AB | |
dc.contributor.author | Jervis, R | |
dc.contributor.author | Flox, C | |
dc.contributor.author | Vázquez-Galván, J | |
dc.contributor.author | Morante, JR | |
dc.date.accessioned | 2019-04-09T09:44:16Z | |
dc.date.available | 2019-01-19 | |
dc.date.available | 2019-04-09T09:44:16Z | |
dc.date.issued | 2019-03-25 | |
dc.identifier.citation | Vázquez-Galván, J., Flox, C., Jervis, J., Jorge, A., Shearing, P. and Morante, J. (2019). High-power nitrided TiO2 carbon felt as the negative electrode for all-vanadium redox flow batteries. Carbon, [online] 148, pp.91-104. Available at: https://www.sciencedirect.com/science/article/pii/S0008622319300752?via%3Dihub [Accessed 9 Apr. 2019]. | en_US |
dc.identifier.issn | 0008-6223 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/56773 | |
dc.description.abstract | This work describes the design of an electrode with enhanced performance applied to all-vanadium redox flow batteries (VRFBs). This new electrode consists of a structural porous carbon felt decorated with TiO2 rutile nanoparticles, which has been nitrided using ammonolysis at 900 °C. An outstanding charge and mass transfer over the electrode-electrolyte interface was observed as a consequence of the synergetic effect of N- and O-functionalization over carbon felt (CF) and the partial formation of TiN (metallic conductor) phase. Moreover, this material has not only improved in terms of catalysis towards the V3+/V2+ redox reaction (k0 = 1.6 × 10−3 cm s−1), but also inhibited the hydrogen evolution reaction (HER), which is one of the main causes of imbalances that lead to battery failure. This led to an impressive high-power peak output value up to 700 mW cm−2, as well as work at high current density in galvanostatic conditions (i.e. 150 mA cm−2), exhibiting low ohmic losses (overpotential) and great redox single cell reversibility, with a superior energy efficiency of 71%. An inexpensive, earth abundant and scalable synthesis method to boost VRFBs technology based on nitrided CF@TiO2 is presented, being able to overcome certain constrains, and therefore to achieve high energy and power densities. | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.ispartof | Carbon | |
dc.rights | https://doi.org/10.1016/j.carbon.2019.01.067 | |
dc.title | High-power nitrided TiO2 carbon felt as the negative electrode for all-vanadium redox flow batteries | en_US |
dc.type | Article | en_US |
dc.rights.holder | © 2019 Elsevier Ltd. | |
dc.identifier.doi | 10.1016/j.carbon.2019.01.067 | |
pubs.notes | Not known | en_US |
pubs.notes | Not sure what the period is or if it admits open access. | en_US |
pubs.publication-status | Published | en_US |
dcterms.dateAccepted | 2019-01-19 | |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |