Morphological modulation of bimetallic nanostructures for accelerated catalysis

Preparation and characterization of different shapes of Au–Ag bimetallic nanocomposites for enhanced physicochemical properties

“…5d) of AuNS@Ag NCs confirmed the planes (1 1 1) and (2 0 0) of Au and (2 0 1) and (1 0 0) of Ag NPs. These results strongly evidenced the formation of Au core with Ag shell as suggested by the previous report [44]. Elemental analysis also confirmed that Au, 61 at% and Ag, 37 at% are present in AuNS@Ag NCs as found in EDS spectra (ESI, Fig.…”

Ag@SiO2 Core-shell Nanoparticles Embedded in a TiO2 Mesoporous Layer Substantially Improve the Performance of Perovskite Solar Cells

“…Figure 3 c shows the peak of Si 2p at the binding energy of 103 eV, which is in accord with the standard database. In Figure 3 d, no distinct peak can be found, which suggests that the 10 nm silica shells around the Ag NPs are sufficiently thick to attenuate the Ag photoelectrons generated by the X-ray [ 49 ]. Nonetheless, after a simple smoothing treatment, a weak peak was observed at the binding energy of 367 eV, corresponding to the peak of Ag 3d 5/2 .…”

In situ redox deposition of palladium nanoparticles on oxygen-deficient tungsten oxide as efficient hydrogenation catalysts

“…32 More recently, noble metal NPs like Au, Ag and Pd have been investigated to catalyze the well-known model reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) owing to their efficient catalytic performance. 33,34 Here, the catalytic activity of obtained Pd/WO 3Àx NWs was evaluated by the reduction of 4-NP to 4-AP in the presence of hydrogen source, NaBH 4 . When the reaction mixture contained 4-NP and NaBH 4 , the change in concentration was monitored by UV-vis absorption spectroscopy as a function of time (Fig.…”