Articolo in rivista, 2023, ENG, 10.1002/celc.202201122
Mattarozzi L.; Cattarin S.; Comisso N.; Musiani M.; Vázquez-Gómez L.; Verlato E.
ICMATE - CNR, Corso Stati Uniti 4, 35127 - Padova, Italy
Compact Ni-Rh alloys are electrodeposited potentiostatically on rotating disk and sheet electrodes; film compositions are adjusted by varying bath composition and deposition potential E-dep. SEM images of these alloys show a compact, globular morphology for Rh contents up to 30 at%, and a smoother aspect for films with a medium-to-high content of Rh. XRD spectra show the formation of a single crystalline phase, with diffraction peaks in intermediate positions between those of the constituent elements. Data analysis indicates that crystal lattice parameters vary with composition according to Vegard's law. Linear voltammetries of nitrate reduction in alkali highlight a maximum of activity, in terms of reduction current, for alloys in the range of 10-30 at.% Rh. Prolonged electrolysis at appropriate potential performed with Ni85Rh15 alloy shows, in comparison with pure Ni and pure Rh: much increased activity and faster abatement of nitrate; lower production of the undesired nitrite species; higher selectivity towards production of ammonia.
ChemElectroChem , pp. e202201122–?
bimetallic electrocatalysts, electrodeposition, Ni-Rh alloys, nitrate reduction, wastewater treatment
Musiani Marco, Vazquez Gomez Lourdes, Verlato Enrico, Mattarozzi Luca, Cattarin Sandro, Comisso Nicola
ICMATE – Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia
ID: 478317
Year: 2023
Type: Articolo in rivista
Creation: 2023-02-21 12:27:48.000
Last update: 2023-05-11 10:38:50.000
External links
OAI-PMH: Dublin Core
OAI-PMH: Mods
OAI-PMH: RDF
URL: https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/celc.202201122
External IDs
CNR OAI-PMH: oai:it.cnr:prodotti:478317
DOI: 10.1002/celc.202201122
Scopus: 2-s2.0-85148056010
ISI Web of Science (WOS): 000939504800001