dc.contributor.author | MENDOZA SANCHEZ, BEATRIZ | en |
dc.contributor.author | NICOLOSI, VALERIA | en |
dc.date.accessioned | 2015-01-19T15:15:24Z | |
dc.date.available | 2015-01-19T15:15:24Z | |
dc.date.issued | 2013 | en |
dc.date.submitted | 2013 | en |
dc.identifier.citation | Mendoza-Sánchez, B., Brousse, T., Ramirez-Castro, C., Nicolosi, V., S. Grant, P., An investigation of nanostructured thin film α-MoO3 based supercapacitor electrodes in an aqueous electrolyte, Electrochimica Acta, 91, 2013, 253-260 | en |
dc.identifier.other | Y | en |
dc.identifier.uri | http://hdl.handle.net/2262/73022 | |
dc.description | PUBLISHED | en |
dc.description.abstract | The potential for MoO3 use as a supercapacitor electrode in aqueous electrolytes was investigated. α-MoO3 nanobelts were synthesized using a hydrothermal method and then thin-film electrodes were manufactured by spray deposition. Electrochemical testing in several aqueous electrolytes showed significant charge storage in 1 M H2SO4 with a complex electrochemical activity that was further investigated by X-ray photoelectron spectroscopy and various electrochemical characterization methods. In a 0–1 V (vs Ag/AgCl) electrochemical window, MoO3 was reduced to a mixture of lower valence oxides with concentrations varying as Mo (5+) > Mo (4+) > Mo (6+), with MoO2 as the main component at potentials below 0.185 V (vs Ag/AgCl). The degree of redox reversibility was evaluated in order to optimize the electrochemical window for enhanced cyclability. A moderate capacitance of 8.8 F g−1 (64 μF cm−2) was fully retained for 720 cycles in an optimized electrochemical window of 0.26–0.43 V (vs Ag/AgCl). | en |
dc.format.extent | 253-260 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Electrochimica Acta | en |
dc.relation.ispartofseries | 91 | en |
dc.rights | Y | en |
dc.subject | Cyclability | en |
dc.subject | Capacitance | en |
dc.subject | Redox activity | en |
dc.subject | Supercapacitors | en |
dc.subject | α-MoO3 nanobelts | en |
dc.title | An investigation of nanostructured thin film α-MoO3 based supercapacitor electrodes in an aqueous electrolyte | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/nicolov | en |
dc.identifier.rssinternalid | 93180 | en |
dc.identifier.doi | http://dx.doi.org/10.1016/j.electacta.2012.11.127 | en |
dc.rights.ecaccessrights | openAccess | |