From mono to tris-1,2,3-triazole-stabilized gold nanoparticles and their compared catalytic efficiency in 4-nitrophenol reduction

Changlong Wang (1) , L. Salmon (2) , Qian Li (1) , Maria Echeverria Igartua (3) , Sergio Moya (3) , R. Ciganda (4) , Jaime Ruiz (1) , Dominique Astruc (1)

1 ISM - Institut des Sciences Moléculaires
2 LCC - Laboratoire de chimie de coordination
3 CIC BiomaGUNE
4 Facultad de Quimica de San Sebastian, Universidad del Pais Vasco

Mono-, bis-, and tris-1,2,3-triazole ligands are used for the stabilization of gold nanoparticles (AuNPs), and the catalytic activities of these AuNPs in 4-nitrophenol reduction by NaBH4 in water are compared as well as with polyethylene glycol 2000 (PEG)- and polyvinylpyrrolidone (PVP)-stabilized AuNPs. The excellent catalytic results specifically obtained with the tris-triazolate ligand terminated by a PEG tail are taken into account by the synergy between the weakness of the tris-triazole-AuNP bond combined with the stabilizing ligand bulk.

Domaines: Chimie de coordination

Changlong Wang, L. Salmon, Qian Li, Maria Echeverria Igartua, Sergio Moya, et al.. From mono to tris-1,2,3-triazole-stabilized gold nanoparticles and their compared catalytic efficiency in 4-nitrophenol reduction. Inorganic Chemistry, 2016, 55 (13), pp.6776-6780. ⟨10.1021/acs.inorgchem.6b01092⟩. ⟨hal-01934977⟩