Herein, we demonstrate the fabrication of single-atom Cu dispersed on graphene (Cu/G) with ultrahigh Cu loading of 5.4 wt%, using a unique confined self-initiated dispersing protocol. It is revealed that Cu is introduced into graphene matrix via highly active gaseous Cu-containing intermediate, ...
The easily-changed valence states of Cu nanoparticles have been a promising candidate for efficient charge separation and transfer, leading to higher catalytic performance compared to even noble metal loaded TiO2samples24,25,26,27. A recent wrap-bake-peel process, using SiO2@M/TiO2@SiO2as the int...
It is revealed that the single-atom Cu–Zr catalyst with Cu1–O3 units contributes solely to methanol synthesis around 180 °C, while the presence of small copper clusters or nanoparticles with Cu–Cu structural patterns are responsible for forming the CO by-product. Furthermore, the gradual...
Herein, Cu single-atom sites/NPC (Cu SASs/NPC) fabricated by a pyrolysis-etching-adsorption-pyrolysis (PEAP) strategy can act as nanozymes for photothermal-catalytic antibacterial therapy (Scheme 1). Cu SASs/NPC has stronger catalytic activity, GSH-depleting performance, and photothermal effect ...
The single-atom Cu–C–N nanozymes possesses high oxidase-like activity.A colorimetric detection method for Hg2+ions has been successfully established.This proposed method was applied for Hg2+ions assay in water and food samples.A smartphone-assisted sensor was proposed for Hg2+ions assay with a ...
Owing to the coordination by pyrrolic-N, the SA Cu catalyst displays an enhanced activity (two-fold) for transfer hydrogenation of quinoline to access the valuable molecule tetrahydroquinoline with a good selectivity (99%) under mild conditions. The higher electron density of SA Cu species induced...
Cu-based catalysts have attracted much interest in CO 2 hydrogenation to methanol because of their high activity. However, the effect of interface, coordination structure, particle size and other underlying factors existed in heterogeneous catalysts render to complex active sites on its surface, therefo...
Role of single-atom Pd in Cu/ZrO2 catalysts for CO2 hydrogenation to methanol s This study is to load the sing-atom Pd on Cu/ZrO 2 with ion exchange method, and the role of Pd in Cu/ZrO 2 for CO 2 hydrogenation to methanol is investi... A Han,J Ding,Q Zhong - 《Colloids & ...
Alpha-glucosidase(α-Glu)is a hydrolase that promotes the rise of glucose in the blood during the digestion process,and it plays a crucial role in regulating glucose levels within a normal range.Herein,we developed an ultrasensitive colorimetric platform by preparing a Cu-N-C single-atom nanozyme...
In this work, we prepare Cu single-atom catalysts (Cu/GO SACs, GO = graphene oxide) through a simple and low-cost strategy at room temperature using Cu foam and graphene oxide. Cu/GO SACs can maintain excellent catalytic activity under harsh environment. Compared with the natural enzyme, ...