dc.contributor.author |
Chen, Wan-Ting |
en |
dc.contributor.author |
Dong, Yusong |
en |
dc.contributor.author |
Yadav, P |
en |
dc.contributor.author |
Augthterson, RD |
en |
dc.contributor.author |
Sun-Waterhouse, Dongxiao |
en |
dc.contributor.author |
Waterhouse, Geoffrey |
en |
dc.date.accessioned |
2020-07-06T04:08:17Z |
en |
dc.date.issued |
2020-06-14 |
en |
dc.identifier.citation |
Applied Catalysis A: General 602 25 Jul 2020 |
en |
dc.identifier.issn |
0926-860X |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/51844 |
en |
dc.description.abstract |
This study systematically investigates alcohol photoreforming over a 1 wt.% Cu/TiO2 photocatalyst under UV excitation (365 nm, 6.5 mW cm−2), examining the effects of the alcohol (methanol, ethanol, ethylene glycol or glycerol) and alcohol concentration (0−100 vol.%) on H2 production rates. A 1.25 wt.% CuO/TiO2 photocatalyst, based on Evonik P25, was first synthesized. Various in-situ spectroscopic methods, including Cu K-edge XANES, UV–vis absorbance spectroscopy and EPR spectroscopy, confirmed the reduction of the supported CuO to Cu0 during alcohol photoreforming. The 1 wt.% Cu/TiO2 photocatalyst formed in-situ demonstrated excellent activity for H2 production, comparable to a 2 wt.% Au/TiO2 reference photocatalyst. At an alcohol concentration of 10 vol.%, H2 production rates followed the order glycerol > ethylene glycol > methanol > ethanol. At 50 vol.%, the rates followed the order methanol > ethylene glycol > glycerol ≈ ethanol. The study highlights the potential of Cu0 as a H2 evolution co-catalyst. |
en |
dc.publisher |
Elsevier |
en |
dc.relation.ispartofseries |
Applied Catalysis A: General |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
Effect of alcohol sacrificial agent on the performance of Cu/TiO2 photocatalysts for UV-driven hydrogen production |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1016/j.apcata.2020.117703 |
en |
pubs.volume |
602 |
en |
dc.rights.holder |
Copyright: 2020 Elsevier B.V. All rights reserved. |
en |
pubs.author-url |
https://www.sciencedirect.com/science/article/pii/S0926860X20302969 |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
804459 |
en |
pubs.org-id |
Science |
en |
pubs.org-id |
Chemistry |
en |
pubs.record-created-at-source-date |
2020-06-22 |
en |
pubs.online-publication-date |
2020-06-16 |
en |