dc.creator | Daniel, Aaron William | |
dc.date.accessioned | 2020-08-22T17:39:30Z | |
dc.date.available | 2019-07-31 | |
dc.date.issued | 2018-07-31 | |
dc.identifier.uri | https://etd.library.vanderbilt.edu/etd-07192018-171409 | |
dc.identifier.uri | http://hdl.handle.net/1803/13281 | |
dc.description.abstract | Vanadium dioxide (VO2) is a unique transition metal oxide that undergoes a first-order phase transition at 68°C from a semiconducting monoclinic phase (M) to a metallic rutile phase (R). This has made VO2 of great interest in the field of condensed matter physics, but its potential applications as a chemical sensor or catalyst have been relatively ignored. VO2(M) nanoparticles were hydrothermally synthesized on a gram scale without the need for additional treatments as with other known synthesis methods. Particle films were analyzed via four-point resistivity to determine the collective phase transition behavior. Glassy carbon electrodes were modified with VO2 particles and used to detect 2,4,6-trinitrotoluene (TNT) in solution with a limit of detection of 5 parts per billion. VO2 particles were also incorporated into carbon paste electrodes and used to reduce CO2 in a solution of sodium bicarbonate. Inclusion of VO2 shifted the onset of CO2 reduction 200 mV more positive than carbon paste alone. | |
dc.format.mimetype | application/pdf | |
dc.subject | Chemistry | |
dc.subject | TNT | |
dc.subject | Phase Transition | |
dc.subject | Electrochemistry | |
dc.title | Hydrothermal Synthesis of Phase-Changing Vanadium Dioxide Nanoparticles and Their Use in Environmental Remediation | |
dc.type | dissertation | |
dc.contributor.committeeMember | Richard F. Haglund, Jr. | |
dc.contributor.committeeMember | David W. Wright | |
dc.contributor.committeeMember | Timothy P. Hanusa | |
dc.type.material | text | |
thesis.degree.name | PHD | |
thesis.degree.level | dissertation | |
thesis.degree.discipline | Chemistry | |
thesis.degree.grantor | Vanderbilt University | |
local.embargo.terms | 2019-07-31 | |
local.embargo.lift | 2019-07-31 | |
dc.contributor.committeeChair | David E. Cliffel | |