Bimetallic gold and palladium nanoparticles supported on copper oxide nanorods for enhanced H₂O₂ catalytic reduction and sensing

Abstract

Mono- and bimetallic gold and palladium nanoparticles supported on copper oxide nanorods were prepared. Their catalytic performance towards the catalytic reduction of H2O2 to produce reactive oxygen radical species was evaluated.

Pd nanocatalysts adsorbed onto silica nanoparticle coated indium tin oxide: a reusable nanozyme for glucose detection

“…The K m value of ITO-SiO 2 -prS-PdNPs with H 2 O 2 as the substrate was 0.68 mM and was lower than that of HRP (3.70 mM). 25 Most nanozymes, such as CuONRs@Pd 6 NPs (2.94 mM) 29 and CuO–Au nanoalloys (4.08 mM), 9 had K m values higher than ITO-SiO 2 -prS-PdNPs. Comparable K m values were observed for MnSe- g -C 3 N 4 (0.62 mM), 30 indicating that ITO-SiO 2 -prS-PdNPs has a greater affinity for H 2 O 2 .…”

“…The K m value of ITO-SiO 2 -prS-PdNPs with H 2 O 2 as the substrate was 0.68 mM and was lower than that of HRP (3.70 mM). 25 Most nanozymes, such as CuONRs@Pd 6 NPs (2.94 mM) 29 and CuO-Au nanoalloys (4.08 mM), 9 had K m values higher than ITO-SiO 2 -prS-PdNPs.…”

Near-Infrared-Driven β-NaYF4:Yb,Tm,Gd/Ni-MOF Nanocomposites for Efficient Sterilization and Degradation of Organic Contaminants

“…DPBF exhibits high absorption at approximately 410 nm, whereas DBB does not. 44 Hence, the reduction in absorbance at 410 nm can serve as an indicator for detecting the existence of ROS. As depicted in Figures 5 and S10, a slight decrease in absorbance was observed in DPBF samples treated with UNM at different times under dark conditions, whereas no change was observed in samples treated with UCNRs and Ni-MOF.…”

A Triazole‐Based Covalent Gel Loaded with Cu/Pd Bimetallic Nanoparticles for Efficient Catalytic Cross‐Coupling Reactions

“…[6,7] Compared with monometallic nanoparticles, there are synergistic interactions between different metals in bimetallic nanoparticles, including electron transfer and exchange, geometrical structure tuning, adsorption and stabilization of reactants and intermediates. [8,9] Bimetallic nanoparticle systems have been used in various fields, such as medical diagnostics, [10] biosensors, [11] supercapacitors, [12] and catalysis. [13] The alloying of Pd with Cu can change the chemical and electronic properties of Pd and alter the adsorption behavior of reaction intermediates on the catalyst surface, thus improving the catalytic performance and enhancing the stability of catalysts under harsh conditions.…”