Browsing by Author "Andreu, Teresa"
Now showing items 1-12 of 12
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A prototype reactor for highly selective solar-driven CO2 reduction to synthesis gas using nanosized earth-abundant catalysts and silicon photovoltaics
(2017-10)
Article
Open AccessThe conversion of carbon dioxide (CO2) into value-added chemicals and fuels, preferably using renewable energy and earth-abundant materials, is considered a key priority for future energy research. In this work, a bias-free ... -
Adaptation of Cu(In, Ga)Se2 photovoltaics for full unbiased photocharge of integrated solar vanadium redox flow batteries
(2019-10-30)
Article
Open AccessThe integration of photovoltaics and vanadium redox flow batteries (VRFB) is a promising alternative for the direct conversion and storage of solar energy in a single device, considering their ... -
Analysis of the interfacial characteristics of BiVO4/metal oxide heterostructures and its implication on their junction properties
(Royal Society of Chemistry (RSC), 2019-01-29)
Article
Open AccessThe formation of heterostructures has proven to be a viable way to achieve high photoelectrochemical water splitting efficiencies with BiVO4 based photoanodes. Especially, cobalt and nickel based oxides are suitable low ... -
High-power positive electrode based on synergistic effect of N- and WO3 -decorated carbon felt for vanadium redox flow batteries
(2018-09)
Article
Open AccessAlthough Vanadium Redox Flow Batteries (VRFB) are suitable for grid-scale applications, their power-related cost must be reduced in order to boost the use of this technology in the market, allowing their widespread ... -
Improved selectivity for partial oxidation of methane to methanol in the presence of nitrite ions and BiVO4 photocatalyst
(2015-04-28)
Article
Restricted access - publisher's policyNitrite ions are shown to have significant influence on the selectivity of the photocatalytic oxidation of methane to methanol. An almost complete inhibition of undesired CO2 has been achieved with BiVO4 in the presence ... -
Mesoporous ceramic oxides as humidity sensors: A case study for gadolinium-doped ceria
(2015-09-01)
Article
Restricted access - publisher's policyMesoporous materials have been studied as high performance sensing materials due to their singular microstructure and extremely high surface-to-volume ratio. However, the lack of stability of these nanostructures is assumed ... -
Mn3O4@CoMn2O4-CoxOy nanoparticles : partial cation exchange synthesis and electrocatalytic properties toward the oxygen reduction and evolution reactions
(2016-07-13)
Article
Open AccessMn3O4@CoMn2O4 nanoparticles (NPs) were produced at low temperature and ambient atmosphere using a one -pot two-step synthesis protocol involving the cation exchange of Mn by Co in preformed Mn3O4 NPs. Selecting the proper ... -
Multilayered hematite nanowires with thin-film silicon photovoltaics in an all-Earth-abundant hybrid tandem device for solar water splitting
(2019-04-05)
Article
Open AccessThe concept of hybrid tandem device structures that combine metal oxides with thin-film semiconducting photoabsorbers holds great promise for large-scale, robust, and cost-effective bias-free photoelectrochemical water ... -
Role of tungsten doping on the surface states in BiVO4 photoanodes for water oxidation: tuning the electron trapping process
(2018-03-09)
Article
Open AccessThe nanostructured BiVO4 photoanodes were prepared by electrospinning and were further characterized by XRD, SEM, and XPS, confirming the bulk and surface modification of the electrodes attained by W addition. The role of ... -
Solar vanadium redox-flow battery powered by thin-film silicon photovoltaics for efficient photoelectrochemical energy storage
(Institute of Physics (IOP), 2018-11-15)
Article
Open AccessSolar-powered vanadium redox-flow batteries (VRFB) have emerged as an attractive method for large-scale and efficient energy storage and conversion. However, due to the stringent charging voltage requirements of vanadium-based ... -
Solution-growth and optoelectronic properties of ZnO:Cl@ZnS core-shell nanowires with tunable shell thickness
(2013-04-05)
Article
Restricted access - publisher's policyArrays of vertically aligned ZnO:Cl@ZnS core–shell nanowires (NWs) were grown by a facile low-cost, high-yield and seed-free two-step process. These NWs were used to demonstrate the potential of 3D electrodes based on ... -
Upscaling high activity oxygen evolution catalysts based on CoFe2O4 nanoparticles supported on nickel foam for power-to-gas electrochemical conversion with energy efficiencies above 80%
(2019-12-15)
Article
Restricted access - publisher's policyWe investigate cobalt ferrite nanoparticles (NPs) supported on large-scale electrodes as oxygen evolution reaction (OER) catalysts. Colloidal CoFe2O4 NPs were loaded on low-cost and high surface area nickel foam (NF) ...
