Show simple item record

dc.contributor.authorVelazquez-Rizo, Martin
dc.contributor.authorIida, Daisuke
dc.contributor.authorOhkawa, Kazuhiro
dc.date.accessioned2019-09-15T12:16:08Z
dc.date.available2019-09-15T12:16:08Z
dc.date.issued2019-05-20
dc.identifier.citationVelazquez-Rizo, M., Iida, D., & Ohkawa, K. (2019). Photoelectrochemical H2 generation from water using a CoO x /GaN photoelectrode. Japanese Journal of Applied Physics, 58(SC), SCCC23. doi:10.7567/1347-4065/ab0f1d
dc.identifier.doi10.7567/1347-4065/ab0f1d
dc.identifier.urihttp://hdl.handle.net/10754/656750
dc.description.abstractWe report the fabrication of a GaN-based photoelectrode with CoO x as a cocatalyst for the photoelectrochemical H2 generation from water. We confirmed that the cocatalyst prevented the GaN photocorrosion partially during the water photoelectrolysis reaction and that it has a superior performance when it is deposited as particles instead of as a thin film. We demonstrated that the CoO x /GaN photoelectrode is capable of generating H2 at a quasi-stable rate for at least 20 h. Scanning and transmission electron microscopy analyses of the cocatalyst confirmed that the CoO x particles agglomerate in sparse polycrystalline clusters, which were formed mainly by spinel Co3O4.
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST) baseline funding BAS/1/ 1676-01-01 and start-up funding BAS/1/1676-01-08.
dc.publisherIOP Publishing
dc.relation.urlhttps://iopscience.iop.org/article/10.7567/1347-4065/ab0f1d
dc.rightsArchived with thanks to Japanese Journal of Applied Physics
dc.titlePhotoelectrochemical H2 generation from water using a CoO x /GaN photoelectrode
dc.typeArticle
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalJapanese Journal of Applied Physics
dc.rights.embargodate2020-01-01
dc.eprint.versionPost-print
kaust.personVelazquez-Rizo, Martin
kaust.personIida, Daisuke
kaust.personOhkawa, Kazuhiro
kaust.grant.numberBAS/1/1676-01-01
kaust.grant.numberBAS/1/1676-01-08
dc.date.published-online2019-05-20
dc.date.published-print2019-06-01


Files in this item

Thumbnail
Name:
CoOx_manuscript.docx
Size:
2.343Mb
Format:
Microsoft Word 2007
Description:
Accepted manuscript

This item appears in the following Collection(s)

Show simple item record