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Your search keyword '"Susarrey-Arce A"' showing total 6 results
Start Over Author "Susarrey-Arce A" Journal acs applied materials & interfaces
6 results on '"Susarrey-Arce A"'

1. Enhanced Photocatalytic Hydrogen Evolution from Water Splitting on Ta2O5/SrZrO3 Heterostructures Decorated with CuxO/RuO2 Cocatalysts

Author

Huerta-Flores, Ali Margot, primary, Ruiz-Zepeda, Francisco, additional, Eyovge, Cavit, additional, Winczewski, Jedrzej P., additional, Vandichel, Matthias, additional, Gaberšček, Miran, additional, Boscher, Nicolas D., additional, Gardeniers, Han J.G.E., additional, Torres-Martínez, Leticia M., additional, and Susarrey-Arce, Arturo, additional

Published
2022
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2. Continuous Microfluidic Synthesis of Pd Nanocubes and PdPt Core–Shell Nanoparticles and Their Catalysis of NO2 Reduction

Author

Kasper Moth-Poulsen, Hanna Härelind, Victor Sebastian, Arturo Susarrey-Arce, Zafer Say, Christoph Langhammer, and Anna Pekkari

Subjects
Materials science, chemistry.chemical_element, Nanoparticle, 02 engineering and technology, Flow chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Catalysis, chemistry, Chemical engineering, Scanning transmission electron microscopy, General Materials Science, Microreactor, 0210 nano-technology, Platinum, Selectivity, Palladium
Abstract

Faceted colloidal nanoparticles are currently of immense interest due to their unique electronic, optical, and catalytic properties. However, continuous flow synthesis that enables rapid formation of faceted nanoparticles of single or multi-elemental composition is not trivial. We present a continuous flow synthesis route for the synthesis of uniformly sized Pd nanocubes and PdPt core-shell nanoparticles in a single-phase microfluidic reactor, which enables rapid formation of shaped nanoparticles with a reaction time of 3 min. The PdPt core-shell nanoparticles feature a dendritic, high surface area with the Pt shell covering the Pd core, as verified using high-resolution scanning transmission electron microscopy and energy dispersive X-ray spectroscopy. The Pd nanocubes and PdPt core-shell particles are catalytically tested during NO2 reduction in the presence of H2 in a flow pocket reactor. The Pd nanocubes exhibited low-temperature activity (i.e.

Published
2019

4. Enhanced Photocatalytic Hydrogen Evolution from Water Splitting on Ta2O5/SrZrO3Heterostructures Decorated with CuxO/RuO2Cocatalysts

Author

Huerta-Flores, Ali Margot, Ruiz-Zepeda, Francisco, Eyovge, Cavit, Winczewski, Jedrzej P., Vandichel, Matthias, Gaberšček, Miran, Boscher, Nicolas D., Gardeniers, Han J.G.E., Torres-Martínez, Leticia M., and Susarrey-Arce, Arturo

Abstract

Photocatalytic H2generation by water splitting is a promising alternative for producing renewable fuels. This work synthesized a new type of Ta2O5/SrZrO3heterostructure with Ru and Cu (RuO2/CuxO/Ta2O5/SrZrO3) using solid-state chemistry methods to achieve a high H2production of 5164 μmol g–1h–1under simulated solar light, 39 times higher than that produced using SrZrO3. The heterostructure performance is compared with other Ta2O5/SrZrO3heterostructure compositions loaded with RuO2, CuxO, or Pt. CuxO is used to showcase the usage of less costly cocatalysts to produce H2. The photocatalytic activity toward H2by the RuO2/CuxO/Ta2O5/SrZrO3heterostructure remains the highest, followed by RuO2/Ta2O5/SrZrO3> CuxO/Ta2O5/SrZrO3> Pt/Ta2O5/SrZrO3> Ta2O5/SrZrO3> SrZrO3. Band gap tunability and high optical absorbance in the visible region are more prominent for the heterostructures containing cocatalysts (RuO2or CuxO) and are even higher for the binary catalyst (RuO2/CuxO). The presence of the binary catalyst is observed to impact the charge carrier transport in Ta2O5/SrZrO3, improving the solar to hydrogen conversion efficiency. The results represent a valuable contribution to the design of SrZrO3-based heterostructures for photocatalytic H2production by solar water splitting.

Published
2022
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