Simultaneous synthesis of aniline and γ-butyrolactone from nitrobenzene and 1,4-butanediol over Cu-CoOx-MgO catalyst via catalytic hydrogen transfer process: Effect of calcination temperature

Cu Nanoparticles/CoO/Carbon Nanofibers as an Enhanced Peroxidase Mimic for Total Antioxidant Capacity Assessment in Drinks

“…22 In order to solve this problem, structural modifications with introduction of other metals or metal oxides to Cu-based nanozymes could further reinforce the catalytic activity of Cu-based complexes. 23 Importantly, hybrid nanocomposites with the introduction of double-or multimetals stand out because of their featured electronic structures and synergistic effect. 24,25 CoO or Co 3 O 4 , as typical Co-based ptype semiconductors, are a promising nanozyme with the high stability, and typically reversible redox couple of Co 3+ /Co 2+ , whose reduction potential is higher than other metal ions.…”

“…In comparison, the catalytic capability of single metal Cu or Cu-based oxides is poor in some vitro catalytic reactions . In order to solve this problem, structural modifications with introduction of other metals or metal oxides to Cu-based nanozymes could further reinforce the catalytic activity of Cu-based complexes . Importantly, hybrid nanocomposites with the introduction of double- or multimetals stand out because of their featured electronic structures and synergistic effect. , CoO or Co 3 O 4 , as typical Co-based p-type semiconductors, are a promising nanozyme with the high stability, and typically reversible redox couple of Co 3+ /Co 2+ , whose reduction potential is higher than other metal ions. , Despite of some achievements about CoO-based nanozymes, pure CoO nanoparticles (NPs) usually show poor lower activity, insufficient electron transfer, poor specificity with substrates, and easily self-agglomerate, might hinder their active sites, weakening their catalytic activity, and limiting their wide applications. , Thus, some methods, such as the introduction of supramolecular, the combination of carbon nanomaterial substrates, or the regulation of defective structure, were adopted to improve their catalytic performance and accelerate their electron-transfer efficiency.…”