Promoted effect of alkalization on the catalytic performance of Rh/alk-Ti 3 C 2 X 2 (X O, F) for the hydrodechlorination of chlorophenols in base-free aqueous medium

Carbon–Silica Composite as an Effective Support for Iron Fischer–Tropsch Synthesis Catalysts

“…Recently, we observed a considerable increase in the dispersion of magnetite particles supported on activated charcoal due to preliminary alkalization of the support . Similar effect was described earlier for Rh nanoparticles . The conceivable reason for this may be the increased concentration of oxygen‐containing groups on charcoal surface due to KNO 3 deposition and subsequent thermal decomposition.…”

Influence of modification of Ti3C2 MXene with ceramic oxide and noble metal nanoparticles on its antimicrobial properties and ecotoxicity towards selected algae and higher plants

“…7,8 Many studies have considered different modications of MXenes' surfaces, which were carried out in order to tailor their specic chemical activities. The surface-modications with nanoparticles that have been introduced for MXenes include: SnO 2 , 9,10 TiO 2 , [11][12][13][14][15][16][17][18] Nb 2 O 5 , 13 Cu 2 O, 19,20 Rh, 21 Ru, 22 bimetallic Ru/Ni 23 or Co/Ni, 24 Mn 3 O 4 , 25 MnO 2 , 26 Sb 2 O 3 , 27 NiO 2 , 28 the transition metals Fe, Co, and Ni, 29 and Ni/Al hydroxide. 30 Additionally, some interesting antimicrobial 2D heterostructures based on Ti 3 C 2 MXene were also prepared.…”

Potassium as a Structural Promoter for an Iron/Activated Carbon Catalyst: Unusual Effect of Component Deposition Order on Magnetite Particle Size and Catalytic Behavior in Fischer–Tropsch Synthesis

“…Am odald iameter of 10-15 nm is observed for Fe/AC and 4-6 nm for promoted catalysts ( Figure 2). [39] Furthermore, the type of anion in alkali may matter.T hermal decomposition of supported KNO 3 is accompanied by oxidation of carbon surface by nitrate ion. On Figure 2).…”

“…As imilare ffect of alkalization on the size of supported Rh nanoparticles was recently described. [39] Furthermore, the type of anion in alkali may matter.T hermal decomposition of supported KNO 3 is accompanied by oxidation of carbon surface by nitrate ion. This process presumably yields higher surfacec oncentration of oxygen-containing groups and therefore higher amount of nucleation centers than that for carbonate-derived catalysts.…”