Highly dispersed Pt on B2O3/Al2O3 support: catalytic properties in the total oxidation of 1-butene

Abstract

Applying a newly proposed method for the synthesis of a binary system Al 2 O 3 /B 2 O 3 , a series of metal phase supports with the ratio of B:Al components varied in the range from 0.05 to 1 was obtained. The supports were loaded with a metal phase from the water solution of H 2 PtCl 6 to get the final load of 1 % of the metallic phase. The samples were subjected to thermal treatment under oxidizing or reducing conditions. The degree of dispersion of the metal phase, evaluated on the basis of hydrogen chemisorption, was very high, reaching a maximum of over 150 %. The catalytic performance of the catalysts was tested in the reaction of temperature-programmed complete oxidation of 1-butene.

Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources

“…The enhanced activity was ascribed to the increased acidic character of the support, which was promoted by the presence of boron oxide. 281 The catalytic oxidation of acetylene was investigated over Co3O4-coated natural clay/commercial cordierite honeycomb monoliths. The complete oxidation of acetylene was achieved at temperatures below 360 °C (GHSV of 50,000 h -1 ).…”

“…There are only a few reports focusing on the catalytic oxidation of butene and acetylene in the literature. Przekop and Kirszensztejn explored the use of Pt/B 2 O 3 /Al 2 O 3 catalysts in 1-butene destruction. Different ratios of the metal oxide components were assessed, and a material with a B-to-Al ratio of 0.3 possessed the best activity, which was considerably higher than the activity exhibited by the corresponding Pt/Al 2 O 3 catalyst.…”

“…Different ratios of the metal oxide components were assessed, and a material with a B-to-Al ratio of 0.3 possessed the best activity, which was considerably higher than the activity exhibited by the corresponding Pt/Al 2 O 3 catalyst. The enhanced activity was due to the increased acidic character of the support, which was promoted by the presence of boron oxide . The catalytic oxidation of acetylene was investigated over Co 3 O 4 -coated natural clay/commercial cordierite honeycomb monoliths.…”

Toluene Abatement by Simultaneous Adsorption and Oxidation over Mixed-Metal Oxides

“…As expected and similar to the Ti/Si-1 sample, Zr/Si-1 depicted a maximum conversion of about 71% relative to the bare silica and other zirconia samples. This high conversion could be related to its higher surface area and pore volume, which not only enhanced the adsorption rate but also provided more active sites for subsequent reaction . Linking with Figures and , it should be noted that the area under toluene C / C 0 concentration after the end of roll-up perfectly correlated with the conversion.…”

Glucose Conversion into 5-Hydroxymethylfurfural over Niobium Oxides Supported on Natural Rubber-Derived Carbon/Silica Nanocomposite

“…The crystallite size of Nb 2 O 5 on HMS (39.7-47.4 nm) was smaller than that on MCS (45.8-49.0 nm). It was explained by a higher surface area for HMS than MCS (Table 1) [31]. As shown in Figure 2C, the images obtained from transmission microscopy (TEM) confirmed a high dispersion of Nb 2 O 5 crystallites on both the HMS and MCS surface but formed agglomerates at an increased Nb loading level.…”