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A new bimetallic heterogeneous catalyst consisting in copperand palladium nanoparticles supported on bio-silica is presented. The useof TEMPO as co-catalyst allowed the aerobic oxidation of primary benzylicalcohols into ...

The transesterification reaction of soybean oil with methanol is studied with different gAl2O3 heterogeneous catalysts. The catalysts used are K-gAl2O3, Na-gAl2O3, Li-gAl2O3, Ca-gAl2O3 and Ba-gAl2O3 both 5% and 10% in me...

Methanation of CO2 was studied over Ni-CeO2 based catalysts supported on Al2O3 prepared by two different strategies: simultaneous and successive impregnation. The CeO2 addition modifies the interaction of Ni with the sup...

Carbon capture and utilization (CCU) has emerged as a promising strategy for mitigating CO2 emissions while producing valuable chemicals. However, conventional CCU relies on separate capture, purification, and conversion...

Different basic materials, such as K-L zeolite, K-Al2O3, K-Mg/Al mixed oxide and MgO, were used as supports of Pt-catalysts for the dry reforming of methane (DR) reaction. The effects of the distribution of basic strengt...

The transesterification reaction used in biodiesel production is reversible; thus, several approaches are required to achieve a high product yield. The use of excess methanol as a reactant is one method to shift the reac...

The catalytic conversion of palm oil was carried out over four zeolite catalysts—Y, ZSM-5, Y-ZSM-5 hybrid, and Y/ZSM-5 composite—to produce jet biofuel with high amount of alkanes and low amount of aromatic hydrocarb...

The deactivation of the H3PW12O40 (HPW) catalyst supported on TiO2 used in the isomerization reaction of α-pinene and its regeneration were studied. The regeneration of the deactivated catalyst was carried out with an a...

Platinum catalysts supported on zeolite KY (Si/Al = 12.7), modified with magnesium, calcium or barium, were evaluated in n-octane reforming to produce ethylbenzene. The catalysts were characterized by nitrogen adsorption...

A regional raw clay was used as the starting material to prepare iron-pillared clays with different iron contents. The catalytic activity of these materials was tested in the heterogeneous photo-Fenton process, applied t...

The reactivity of a heavy model molecule (quinolin-65, named Q65, a 2,3,7,8-dibenzopyrene derivative) over two different equilibrium fluidized catalytic cracking catalysts of the conventional and resid types was studied...

Local CO2 concentration and efficient electron transfer are critical for facilitating CO2 activation. Herein, we developed a hydroxyl-rich Zn/Co layered double hydroxide (Zn2Co3(OH)10∙2 H2O) via a facile solvothermal...

Mn-Cu mixed oxides were deposited by ultrasonic impregnation on ceramic honeycomb monoliths. Its catalytic performance was evaluated in the combustion of ethanol and n-hexane, VOC molecules of different chemical nature. ...

Abstract Single-atom catalysts (SACs) enable greener and more economically sustainable chemical production by significantly improving thermocatalysis efficiency and selectivity through maximized atom utilization and high...

A green and sustainable approach to the direct synthesis ofthioesters has been developed using Fe3O4 as a low-cost, easilyprepared, reusable and environmentally safe catalyst. The crossdehydrogenative coupling (CDC) of v...

A series of palladium-based catalysts were synthesized by grafting a silylated imidazolium ionic liquid onto two types of silica supports: mesoporous SBA-15 and commercial silica. The ionic liquid served as both a stabil...

The formation of NiAl2O4 during calcination and the subsequent generation of Ni–oxygen vacancy (Ni–Ov) interfaces during H2 reduction play a crucial role in suppressing coke formation in the dry reforming of methane ...

Hydrogen is widely considered a promising green energy vector. It may be produced by steam reforming of methane which may be obtained from renewable resources such as biogas or biomass gasification. Nickel catalysts supp...

Currently, bio-transformer oil (BTO) is in high demand due to the increasing demand for electrical power and environmental policy considerations. Hence, this research aimed to produce BTO with high oxidation tolerance vi...

Palladium and cobalt bimetallic catalysts supported on sulfated zirconia (PdCo/SZ), obtained from different precursors of Pd (nitrate and acetylacetonate), were prepared to study their influence on the selective reductio...

Avaliou-se o comportamento mecânico do polímero de mamona, tendo por variáveis o tempo de produção e a presença de catalisador, e utilizando como padrão comparativo o cimento ósseo (polimetilmetacrilato). Foram e...

The catalytic conversion of renewable sources using processes with low energy consumption is expected to reduce damage on the environment. In this sense, significant progress in reforming of alcohol from biomass has been...

Pt catalysts were prepared by encapsulating the active metal in the NaA zeolite structure. The catalysts were prepared by hydrothermal synthesis using two heating sources, conventional heating through a thermal bath and ...

Abstract Seawater electrolysis faces major challenges, including side reactions, ionic poisoning, and corrosion, leading to low efficiency and poor stability, and it is therefore of great necessity to develop advanced ca...