High-yield synthesis and hybridizations of Cu microplates for catalytic applications

Abstract

Because of their special geometrical features, which include a high specific surface area and high proportion of exposed surface atoms, two-dimensional (2D) metal nanostructures based on Au and Ag have...

Mechanochemical synthesis of Zn-bionanohybrids: size effect at the nanoscale to improve their enzyme-like activity

“…4a), displaying characteristic peaks for Zn 3 (PO 4 ) 2 at 19.3º (040), 31.3º (241), 47.5º (521) and 61.1º (303) (JCPDS 33-1474). 46 This was confirmed by FT-IR (Fig. 4b)…”

“…4a), displaying characteristic peaks for Zn 3 (PO 4 ) 2 at 19.3°(040), 31.3°(241), 47.5°( 521) and 61.1°(303) (JCPDS 33-1474). 46 This was conrmed by FT-IR (Fig. 4b) with absorption bands at 1106 cm −1 and 1071 cm −1 corresponding to the anti-symmetric stretching and symmetric stretching of PO 4 −3…”

“…This increase in catalase activity can be correlated with its structure as it has been observed that the mechanochemical hybrid has smaller average size of microplates, resulting in a very large improvement of the catalytic performance. 46 This result again indicates that the synthesis of bionanohybrids in a mechanochemical way is able to induce drastic changes in the nanostructure of the water-based counterpart by increasing the catalase-like activity. improvement in their catalytic performance, with the enzyme-like activity of the waterbased catalysts being in some cases 2000 times more active than the water-synthesised counterpart.…”