Monodisperse and polydisperse platinum nanoclusters supported over TiO2 anatase as catalysts for catalytic oxidation of styrene

Catalytic performance of MnFeSi composite in selective oxidation of styrene, ethylbenzene and benzyl alcohol

“…The characteristic low crystallized hexagonal peaks from graphitic phase at 2 = 25. 5 and Mn 3 O 4 phases are not found after the catalytic test, which means that these phases sufferers from transformation during the benzyl alcohol oxidation due their lack of stability. XRD pattern of the solid tested in the EB (Fig.…”

“…Currently, oxidation of styrene is one of the most studied processes for converting hydrocarbons into other useful products such as benzaldehyde, styrene epoxide and formaldehyde, among other chemical commodities [1][2][3][4][5]. The production of these useful products by styrene oxidation with H 2 O 2 is of major importance due the low cost of the heterogeneous catalysts employed in the reaction, which make chemical processing more appropriate in terms of saving energy and money demands [1,6,7].…”

Enantioselective silver nanoclusters: Preparation, characterization and photoluminescence spectroscopy

“…4-II). The disappearance of ligand peak in the UV-vis spectrum of protected clusters, confirm the prepared clusters are completely pure from the unreacted ligand [30,31].…”

Ligand‐Protected Ultrasmall Pd Nanoclusters Supported on Metal Oxide Surfaces for CO Oxidation: Does the Ligand Activate or Passivate the Pd Nanocatalyst?

“…Also, the complete disappearance of the absorption peak of the L‐cysteine ligand at 227 nm (Figure 1‐I(b) in the UV‐Vis spectrum of the Pd n (L‐Cys) m clusters confirms that the prepared clusters do not contain free unreacted ligands [29] . FTIR spectra of the free ligand and the ligand‐protected Pd clusters (Figure S1, Supporting Information) show the disappearance of the S−H vibrational band at 2535–2564 cm −1 in the spectrum of the Pd n (L‐Cys) m clusters which confirms that L‐cysteine ligands are anchored to the Pd n cores through surface attachments by the thiol groups [11,29] …”

“…The ratio between the metallic and organic parts in the protected metal nanoclusters can be estimated by the thermogravimetric analysis (TGA) of the clusters [29–31] . Figure 1‐II displays the TGA profiles of the free L‐cysteine ligand and the Pd n (L‐Cys) m clusters.…”