Highly Acidic, Thermal Stable NbPO₄@Fullerene Catalyst for Dehydration of Cyclohexanol

Abstract

A highly acidic fullerene containing niobium phosphate catalyst demonstrating high thermal stability is synthesized by one pot Sol‐Gel EISA method. The ratio of niobium, phosphorous and surfactant plays a key role for the in‐situ fullerene generation. A thorough study of elemental, textural and chemical properties using different experimental techniques and an extensive catalytic investigation has been done using a series of catalysts synthesized by varying different parameters. The high conversion and selectivity for cyclohexanol and ethanol dehydration reaction and also five regeneration upto fine five consecutive cycle could be useful for conversion of biomass to fine chemicals.

Steroid-fullerene hybrids: a review

“…Thus, the absolute C2 configuration for compounds 27-30 was determined to be: (2R) for 27, (2S) for 28, (2S) for 29 and (2R) for 30. Finally, the authors observed that the conjugation of epiandrosterone derivatives with C60 increases the solubility of these new hybrid systems (27)(28)(29)(30) in organic solvents such as chloroform, dichloromethane and dimethylformamide, among others. It is therefore undeniable that the presence of the steroid unit in the new hybrid compounds (27, 28, 29 and 30) improves their solubility.…”

“…These compounds have unique optical, [7][8][9] electrophysical, [10][11][12] mechanical, [13][14][15] tribological, [16][17][18] sorption [19][20][21][22] and biological [23][24][25] properties. New dyes and catalysts [26][27][28][29][30] have even been discovered among functionalized fullerenes. The use of functionalized fullerenes in the field of medical chemistry, in particular for the treatment of significant diseases, seems interesting because of their wide range of biological activity.…”

Bifunctional molybdenum phosphate catalyst with tunable acidity–basicity for the sustainable synthesis of glycerol carbonate via solvent‐free carbonylation of glycerol with urea

“…The catalysts were synthesized by evaporation induced self-assembly (EISA) process as described earlier. [9,48,49] First, at room temperature, ethanol was used to dissolve CTAB. Then MoCl 5 was slowly added and stirred for 1 h followed by addition H 3 PO 4 dropwise.…”

Quantum‐chemical approaches in the study of fullerene and its derivatives by the example of the most typical cycloaddition reactions: A review

“…They are being successfully studied in areas such as medicine [20][21][22][23][24], solar energy [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39], and technology [40][41][42][43][44][45]. Compounds possessing unique [46][47][48], electrophysical [49][50][51], mechanical [52][53][54], tribological [55][56][57], sorption [58][59][60][61], and biological properties [62][63][64] and even new dyes and catalysts [65][66][67][68][69] have already been found among fu...…”

“…Reprinted (adapted) with permission from Reference [173]. Copyright 2013 American Chemical Society 80,68) are none other than adducts on [6,6] type bonds near the pentalene unit. The energy difference between the first set of monoadducts and the other possible regioisomers is larger than 11 kcal × mol −1 [173].…”