Photo-oxidation of nitrite anions in aqueous solution for the benchmarking of nano-TiO2 photocatalytic coatings

Autor: Amado Velázquez-Palenzuela, Burak Ulusoy, Kim Dam-Johansen, Jakob Munkholt Christensen

Publikováno v: Velázquez-Palenzuela, A, Ulusoy, B, Dam-Johansen, K & Christensen, J M 2023, ' Photo-oxidation of nitrite anions in aqueous solution for the benchmarking of nano-TiO2 photocatalytic coatings ', Progress in Organic Coatings, vol. 175, 107380 . https://doi.org/10.1016/j.porgcoat.2022.107380

Photocatalytic coatings have potential as an air purifying technology for removal of pollutants such as NOx gases, which are converted into and immobilized as nitrate via photo-oxidation. This work is an investigation of the photocatalytic conversion

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2251087bb869e512a5ec8e03628bbd4
https://doi.org/10.1016/j.porgcoat.2022.107380

Preparation of TiO2–based hollow microspheres by spray drying and their use as novel active pigments for photocatalytic coatings

Autor: Amado Velázquez-Palenzuela, Kim Dam-Johansen, Jakob Munkholt Christensen, Nailiang Yang, Huan Wang

Publikováno v: Velázquez-Palenzuela, A, Wang, H, Yang, N, Dam-Johansen, K & Christensen, J M 2021, ' Preparation of TiO 2 –based hollow microspheres by spray drying and their use as novel active pigments for photocatalytic coatings ', Progress in Organic Coatings, vol. 160, 106518 . https://doi.org/10.1016/j.porgcoat.2021.106518

The use of TiO2 nanoparticles in organic-based photocatalytic coatings imposes several challenges: poor activity under visible light, binder photo-degradation, need for UV activation and toxicity concerns. Here we present a scalable two-step synthesi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ced2e3cdb9c7205933feb03b87b9f176
https://doi.org/10.1016/j.porgcoat.2021.106518

Tuning the activity of Pt alloy electrocatalysts by means of the lanthanide contraction

Autor: Jakob Schiøtz, María Escudero-Escribano, Paolo Malacrida, Ifan E. L. Stephens, Ulrik Grønbjerg Vej-Hansen, Martin Hangaard Hansen, Vladimir Tripkovic, Jan Rossmeisl, Amado Velázquez-Palenzuela, Ib Chorkendorff

Publikováno v: Science. 352:73-76

The high platinum loadings required to compensate for the slow kinetics of the oxygen reduction reaction (ORR) impede the widespread uptake of low-temperature fuel cells in automotive vehicles. We have studied the ORR on eight platinum (Pt)-lanthanid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9563530616f843830f17be9108992dcc
https://doi.org/10.1126/science.aad8892

The enhanced activity of mass-selected Pt Gd nanoparticles for oxygen electroreduction

Autor: Federico Masini, Paolo Malacrida, Daniel Friebel, Thomas Willum Hansen, María Escudero-Escribano, Anders Nilsson, Anders Pedersen, Ifan E. L. Stephens, Davide Deiana, Amado Velázquez-Palenzuela, Ib Chorkendorff

Publikováno v: Journal of Catalysis. 328:297-307

Mass-selected platinum–gadolinium alloy nanoparticles (PtxGd NPs) are synthesized for the first time as oxygen reduction reaction (ORR) electrocatalysts using the gas aggregation technique, under ultrahigh vacuum (UHV) conditions. The morphology of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74cb196d0eb56da763fcb1c2f2e399bb
https://doi.org/10.1016/j.jcat.2014.12.012

Sn-modified carbon-supported Pt nanoparticles synthesized using spontaneous deposition as electrocatalysts for direct alcohol fuel cells

Autor: Enric Brillas, Pere-Lluís Cabot, José Antonio Garrido, Rosa María Rodríguez, Conchita Arias, Amado Velázquez-Palenzuela, Francesc Centellas

Publikováno v: International Journal of Hydrogen Energy. 38:16418-16426

Sn-modified carbon-supported Pt nanoparticles (Sn(Pt)/C electrocatalysts) were prepared by spontaneous deposition. Sn species were deposited on Pt/C by immersion in 2.0 × 10−4 M SnCl2 + 0.1 M HClO4 for different times, which allowed achieving an a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdf22136f29983c037924d24a2266d26
https://doi.org/10.1016/j.ijhydene.2013.09.146