Solar Energy Storage by a Heterostructured BiVO4–PbOx Photocapacitive Device
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Other documents of the author: Safshekan, Saeid; Herraiz Cardona, Isaac; Cardenas-Morcoso, Drialys; Ojani, Reza; Haro, Marta; Gimenez, Sixto
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comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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http://dx.doi.org/10.1021/acsenergylett.6b00728 |
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Title
Solar Energy Storage by a Heterostructured BiVO4–PbOx Photocapacitive DeviceAuthor (s)
Date
2017Publisher
American Chemical SocietyISSN
2380-8195Bibliographic citation
SAFSHEKAN, Saeid, et al. Solar Energy Storage by a Heterostructured BiVO4–PbO x Photocapacitive Device. ACS Energy Letters, 2017, vol. 2, no 2, p. 469-475.Type
info:eu-repo/semantics/articlePublisher version
http://pubs.acs.org/doi/abs/10.1021/acsenergylett.6b00728Version
info:eu-repo/semantics/publishedVersionAbstract
The development of solar energy storage strategies is a key step for handling the inherent variability of sunlight within a global solar-based energy model. In the present study, we have developed a photocapacitive ... [+]
The development of solar energy storage strategies is a key step for handling the inherent variability of sunlight within a global solar-based energy model. In the present study, we have developed a photocapacitive device based on the heterostructured BiVO4–PbOx system. BiVO4 provides the photoactive core of the device, while PbOx nanoparticles (formed by the controlled oxidation of colloidal PbS quantum dots) furnish a capacitive platform by redox pseudocapacitance. The synergistic coupling of these two systems leads to high capacitance under illumination, which can be subsequently released in the dark. This integrated device exhibits excellent behavior in terms of solar light harvesting (band gap in the visible region ∼2.4 eV), with a specific capacitance of 6 mF cm–2 (4.5 mF cm–2 at discharge current density of 0.015 mA cm–2), high open-circuit potential (1.5 V vs RHE), and stable charge–discharge cycling during 100 cycles, opening promising research avenues in the development of novel solar energy conversion–storage strategies. [-]
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ACS Energy Letters, 2017, vol. 2, no 2, p. 469-475Investigation project
Generalitat Valenciana / ISIC/2012/008 Institute of Nanotechnologies for Clean Energies and ACOMP/2015/105; University Jaume I / P1·1B2011-50Rights
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