Synthesis and Catalytic Study of NiAg Bimetallic Core–Shell Nanoparticles

This publication presents the synthesis of core–shell nanoparticles, where the core was Ni, and the shell was a Ag–Ni nano alloy. The synthesis was based on the reduction of Ni and Ag ions with sodium borohydride in the presence of trisodium citrate as a stabilizer. In order to determine the phase c...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Wojtaszek Konrad
Cebula Filip
Rutkowski Bogdan
Wytrwal Magdalena
Csapó Edit
Wojnicki Marek
Dokumentumtípus: Cikk
Megjelent: 2023
Sorozat:MATERIALS 16 No. 2
Tárgyszavak:
doi:10.3390/ma16020659

mtmt:33550122
Online Access:http://publicatio.bibl.u-szeged.hu/26099
Leíró adatok
Tartalmi kivonat:This publication presents the synthesis of core–shell nanoparticles, where the core was Ni, and the shell was a Ag–Ni nano alloy. The synthesis was based on the reduction of Ni and Ag ions with sodium borohydride in the presence of trisodium citrate as a stabilizer. In order to determine the phase composition of the obtained nanoparticles, an XRD study was performed, and in order to identify the oxidation states of the nanoparticle components, an XPS spectroscopic study was performed. The composition and shape of the particles were determined using the HR-TEM EDS test. The obtained nanoparticles had a size of 11 nm. The research on catalytic properties was carried out in the model methylene blue reduction system. The investigation of the catalytic activity of colloids was carried out with the use of UV–Vis spectrophotometry. The Ag–Ni alloy was about ten times more active than were pure silver nanoparticles of a similar size.
Terjedelem/Fizikai jellemzők:16
ISSN:1996-1944