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Article: CuO/ZnO heterojunction nanoarrays for enhanced photoelectrochemical water oxidation

TitleCuO/ZnO heterojunction nanoarrays for enhanced photoelectrochemical water oxidation
Authors
KeywordsHeterojunction
Light absorption
P-N junction
Photoanode
Photoelectrochemical (PEC)
Water splitting
Issue Date2019
Citation
Applied Surface Science, 2019, v. 469, p. 276-282 How to Cite?
AbstractPhotoelectrochemical (PEC) water splitting offers a promising route for producing chemical energy from abundant solar energy, but a bottleneck remains for PEC practical applications because of the lack of efficient, stable and earth-abundant photoelectrodes. Here, we report simultaneous improvements in carrier separation and light harvesting by constructing p-n heterojunctions in CuO/ZnO nanorod arrays. The novelty of this work is developing a new strategy for preparing a CuO/ZnO p-n heterojunction photoanode for PEC water splitting, in which Cu(OH) 2 /ZnO is first prepared by a chemical solution strategy and then transformed into CuO/ZnO by annealing. The CuO/ZnO heterojunction photoanode exhibited a significant negative shift of 150 mV for the onset potential and an approximately 4-fold enhancement in the photocurrent at 1.23 V vs reversible hydrogen electrode (RHE) compared with those of pristine ZnO NRs. This work offers a facile strategy for preparing oxide-based p-n heterojunction photoanodes for enhanced PEC water splitting.
Persistent Identifierhttp://hdl.handle.net/10722/335825
ISSN
2023 Impact Factor: 6.3
2023 SCImago Journal Rankings: 1.210
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLiu, Chang-
dc.contributor.authorMeng, Fanling-
dc.contributor.authorZhang, Lei-
dc.contributor.authorZhang, Dantong-
dc.contributor.authorWei, Shuting-
dc.contributor.authorQi, Kun-
dc.contributor.authorFan, Jinchang-
dc.contributor.authorZhang, Haiyan-
dc.contributor.authorCui, Xiaoqiang-
dc.date.accessioned2023-12-28T08:49:02Z-
dc.date.available2023-12-28T08:49:02Z-
dc.date.issued2019-
dc.identifier.citationApplied Surface Science, 2019, v. 469, p. 276-282-
dc.identifier.issn0169-4332-
dc.identifier.urihttp://hdl.handle.net/10722/335825-
dc.description.abstractPhotoelectrochemical (PEC) water splitting offers a promising route for producing chemical energy from abundant solar energy, but a bottleneck remains for PEC practical applications because of the lack of efficient, stable and earth-abundant photoelectrodes. Here, we report simultaneous improvements in carrier separation and light harvesting by constructing p-n heterojunctions in CuO/ZnO nanorod arrays. The novelty of this work is developing a new strategy for preparing a CuO/ZnO p-n heterojunction photoanode for PEC water splitting, in which Cu(OH) 2 /ZnO is first prepared by a chemical solution strategy and then transformed into CuO/ZnO by annealing. The CuO/ZnO heterojunction photoanode exhibited a significant negative shift of 150 mV for the onset potential and an approximately 4-fold enhancement in the photocurrent at 1.23 V vs reversible hydrogen electrode (RHE) compared with those of pristine ZnO NRs. This work offers a facile strategy for preparing oxide-based p-n heterojunction photoanodes for enhanced PEC water splitting.-
dc.languageeng-
dc.relation.ispartofApplied Surface Science-
dc.subjectHeterojunction-
dc.subjectLight absorption-
dc.subjectP-N junction-
dc.subjectPhotoanode-
dc.subjectPhotoelectrochemical (PEC)-
dc.subjectWater splitting-
dc.titleCuO/ZnO heterojunction nanoarrays for enhanced photoelectrochemical water oxidation-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.apsusc.2018.11.054-
dc.identifier.scopuseid_2-s2.0-85056224145-
dc.identifier.volume469-
dc.identifier.spage276-
dc.identifier.epage282-
dc.identifier.isiWOS:000454617200033-

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