2020
DOI: 10.1002/cctc.202000775
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Photoelectrochemical CO2 Reduction via Cu2O/CuFeO2 Hierarchical nanorods photocatalyst

Abstract: Although cuprous oxide, Cu 2 O, has attracted attention as a promising p-type semiconductor material for carbon dioxide reduction (CO 2 RR) photocatalysts, serious stability problems have always occurred due to photocorrosion. In this work, we fabricated hierarchical-structured photocathodes with CuFeO 2 on Cu 2 O nanorods by spray pyrolysis and oxygen-controlled heat treatment to improve the stability of Cu 2 O from a thermodynamic perspective. Field-emission scanning electron microscopy, field-emission trans… Show more

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Cited by 17 publications
(9 citation statements)
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“…The origin of both photoactivity/photoinstability of cuprous oxide, as well as, strategies for stabilization can be found in the literature [6] and includes the association with different semiconductors [7,8] or the deposition of protective layers [9] . These strategies provide higher photocurrent and extend the lifetime of Cu 2 O electrodes when submitted to cathodic polarization and visible light irradiation.…”
Section: Methodsmentioning
confidence: 99%
“…The origin of both photoactivity/photoinstability of cuprous oxide, as well as, strategies for stabilization can be found in the literature [6] and includes the association with different semiconductors [7,8] or the deposition of protective layers [9] . These strategies provide higher photocurrent and extend the lifetime of Cu 2 O electrodes when submitted to cathodic polarization and visible light irradiation.…”
Section: Methodsmentioning
confidence: 99%
“…While CdS can allow photocatalytic OER and HER (or CO2RR) at the same time, 149 Si and Cu 2 O can only allow photocatalytic HER (or CO2RR). 150,151 Unfortunately, these materials are highly unstable in aqueous solution. For example, CdS and Cu 2 O are easily photocorroded and deactivated.…”
Section: Mofs As Photosensitizersmentioning
confidence: 99%
“…[3] Typically, the vital chemical substance NH 3 and high value-added carbon-containing compound can be synthesized by using PEC cell fixation of N 2 and CO 2 , or oxidation of glycerol under solar irradiation. [4][5][6] Among different PEC processes, the solar-driven water splitting is an encouraging approach to generate the renewable energy carrier hydrogen. [7] The semiconducting photoelectrodes as the core component of PEC cell play decisive roles to achieve high solar-tohydrogen conversion efficiency.…”
Section: Introductionmentioning
confidence: 99%
“…[8,9] Enormous attempts have been made to investigate the semiconducting oxides owing to their stability, abundance and narrow band gap for harvesting visible light to develop prospective photoelectrode materials. [10,11] TiO 2 , Fe 2 O 3 , CuWO 4 and BiVO 4 are some typical n-type semiconducting photoanodes. [12][13][14] Despite the dazzling advancement of many oxides, it remains challenging to identify a suitable material fulfill the operational requirements.…”
Section: Introductionmentioning
confidence: 99%
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