Abstract The wide and complex tunability of gold nanoparticles (AuNPs) supported on nanoporous, semicrystalline, polymorphic polymer matrices consisting syndiotactic polystyrene (sPS) or multiblock polystyrene‐ co ‐ cis ‐1,4 poly(butadiene) (sPSB) is herein described correlated with the performances in aerobic oxidation (±)‐1‐phenylethanol. Impregnation deposition‐impregnation synthetic methods...

Cobalt oxide catalysts supported on oxidized multi-walled carbon nanotubes (MWCNT) for the low-temperature catalytic oxidation of carbon monoxide were prepared by an impregnation-ultrasound method. These catalysts were characterized by N2 adsorption/desorption, TEM, XRD, Raman, and H2-TPR methods. The XRD and Raman results indicated that the phase of the synthesized cobalt...

This paper compares different coating methods (in situ solid combustion, hybrid deposition, secondary growth on seed, suspension, double deposition of wet impregnation and suspension) to deposit Ce0.2Zr0.8O₂ mixed oxides on cordierite substrates, for use as a three way catalyst. Among them, the double deposition was proven to be the most efficient one. The coated sample shows a BET (Brunauer-Em...

Nanometric Carbid Silicon (SiC) supported monometallic and bimetallic catalysts containing Fe, Co, Ni transition metals were prepared by wet impregnation method. Multiwall carbon nanotubes (MWCNTs) were synthesized over the prepared catalysts from catalytic decomposition of acetylene at 850°C by thermal chemical vapor deposition (TCVD) technique. The synthesized nanomaterials (catalysts and CNT...

The image shows that, by oxidizing the graphitic carbon (top), we introduce acid surface groups (oxygen atoms in red – bottom) which promote formation of small silver nanoparticles (incipient wetness impregnation synthesis), as shown plot on left. 11 nm particles generated a larger CO current compared to (right plot).

The performance of the single-step and sequential-steps catalytic CO2-hydrogenation to DiMethyl Ether (DME) was systematically analyzed. CuO–ZnO model-catalysts for methanol were synthesized via different methods namely co-precipitation, sequential precipitation precipitation-impregnation precursors. Moreover, co-precipitation co-impregnation applied establish bifunctional structures composed o...

The use of impregnated phases in thin-layer chromatography (TLC) has a long history, beginning in the very earliest days of the technique. As a consequence, much of the key literature in this Reld dates back to the 1960s and 1970s. The literature also contains a considerable number of examples of impregnation reagents where subsequently the methods have received little attention except in revie...

The effect of impregnation sequence on the formation of Pt/Ni bimetallic nanoparticles supported on g-Al2O3 was investigated for catalysts with Pt/Ni atomic ratios of 3/1 and 1/1. These bimetallic catalysts were prepared with a fixed Pt loading (5 wt.%) by incipient impregnation of one metal precursor and calcination, followed by the impregnation of the second metal precursor and a second calci...

30 This study aimed to improve the shelf life of Chinese red bayberries using vacuum impregnation. 31 Vacuum pressure of 5 kPa for 15 min, atmospheric pressure for 10 min, an impregnation temperature of 32 20 °C, alone or in combination with isotonic sucrose solution, 1% food-grade disodium stannous citrate 33 (DSC), and 2% food-grade calcium ascorbate were used for vacuum impregnation. Quality...