RT info:eu-repo/semantics/article
T1 Marrying plasmonic earth-abundant metals with catalytic metals for visible-light-promoted hydrogen generation on biobased materials
A1 Díaz Díaz, David
A1 Ramírez, Óscar
A1 Castillo, Sebastián
A1 Bonardd, Sebastián
A1 Saldías, César
A1 O'Shea, James N.
A1 Clive, Christopher Philip
A1 Leiva, Ángel
K1 Hydrogel nanocomposites
K1 Nanoalloys
K1 Hydrogen generation
K1 Plasmonic enhancement
AB Bimetallic CuPt alloyed nanoparticles were conveniently synthesized on biohydrogels and were capable ofcarrying out hydrogen release from ammonium borane hydrolysis. The biohydrogel consisted of bead-shapedalginate chains crosslinked by calcium ions, which were used as support material to synthesize and stabilizethe bimetallic nanoparticles, employing adsorption and coreduction strategy steps. The as-prepared nanoparticles exhibited light absorption in the visible range (580 nm) resulting from the surface plasmon resonance (SPR) phenomenon ascribed to the presence of copper in the alloyed system. On the other hand, the presence ofplatinum atoms in these nanoalloys endows them with a notable catalytic performance toward ammonia boranehydrolysis as a hydrogen release reaction, reaching kr values from 0.32 × 10− 4 to 2.23 × 10− 4 mol L− 1 min− 1 asthe Pt content increases. Finally, by taking advantage of the SPR light absorption shown by CuPt 1:1, it wasdemonstrated that these entities could be successfully employed as photocatalysts for the hydrogen generationreaction, boosting its activity by almost 2.06 times compared to its performance in dark conditions. This catalyticenhancement was mainly ascribed to the light-harvesting properties promoted by plasmonic effects and thespecimen’s metallic composition.
PB Elsevier
SN 2213-3437
YR 2023
FD 2023
LK http://riull.ull.es/xmlui/handle/915/42240
UL http://riull.ull.es/xmlui/handle/915/42240
LA en
NO Oscar Ramírez, Sebastian Castillo, Sebastian Bonardd, César Saldías, James N. O’Shea, Christopher Philip Clive, David Díaz Díaz, Angel Leiva, Marrying plasmonic earth-abundant metals with catalytic metals for visible-light-promoted hydrogen generation on biobased materials, Journal of Environmental Chemical Engineering, Volume 11, Issue 5, 2023, 111036, ISSN 2213-3437, https://doi.org/10.1016/j.jece.2023.111036
DS Repositorio institucional de la Universidad de La Laguna
RD 17-jul-2025