Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Mariana M.V.M. Souza"'
Autor:
Arthur B.F. Moreira, Daniel S. Nogueira, Isabelle C. Freitas, Ricardo L. Souza Júnior, Carlos Alberto Chagas, Mariana M.V.M. Souza, Robinson Luciano Manfro
Publikováno v:
Waste and Biomass Valorization.
The conversion of glycerol into lactic acid in alkaline medium using heterogeneous catalysts has been highlighted and has proved to be an efficient alternative to the conventional fermentative route. This work investigated the production of lactic ac
Publikováno v:
Powder Diffraction. 36:29-34
In the present work, LaNi0.5Ti0.45Co0.05O3, LaNi0.45Co0.05Ti0.5O3, and LaNi0.5Ti0.5O3 perovskites were synthesized by the modified Pechini method. These materials were characterized using X-ray fluorescence, scanning electron microscopy, and powder X
Publikováno v:
Environmental Science and Pollution Research. 28:22439-22457
Fluoride can cause some diseases to humans when ingested in large quantities and for a long time. Due to this, it is necessary to remove or reduce the amount of fluoride in effluents before release into the water bodies. This work aimed to evaluate t
Publikováno v:
Renewable Energy. 160:919-930
Ni, Cu and Ni-Cu catalysts supported on NaY-zeolite (NaY) were prepared with 20 wt% of each metal by using wet impregnation method. They were characterized by X-ray fluorescence, X-ray diffraction, N2 adsorption-desorption, temperature-programmed red
Publikováno v:
Biomass Conversion and Biorefinery. 13:661-673
A series of Ca/Al-mixed oxides derived from hydrocalumite (HC) with Ca/Al atomic ratio of 2 was prepared by calcination at different temperatures and they were evaluated in transesterification of glycerol with diethyl carbonate (DEC) to produce glyce
Publikováno v:
Current Catalysis. 9:80-89
Background: Hydrogen has been considered the energy source of the future and one of the processes for its production is the methane steam reforming. The catalyst used industrially is Ni/Al2O3 and the addition of promoter oxides can be an alternative
Autor:
Mariana M.V.M. Souza, Adriana P. dos S. Dias, João Paulo da S.Q. Menezes, Mônica Antunes Pereira da Silva
Publikováno v:
International Journal of Hydrogen Energy. 45:22906-22920
Nickel catalysts were synthesized by the wet impregnation of three different supports: γ-Al2O3 and alumina promoted with either 10 wt % of MgO or 10 wt% of CaO. The catalysts were evaluated in butanol steam reforming at 500 °C, atmospheric pressure
Publikováno v:
Clays and Clay Minerals. 68:273-286
Hydrocalumite (HC) is a type of synthetic layered double hydroxide (LDH) that has many important industrial uses and is commonly synthesized by a co-precipitation method in a water:ethanol (2:3) mixture; however, atmospheric carbon dioxide interferes
Publikováno v:
Renewable Energy. 148:864-875
Cobalt catalysts were prepared by wet impregnation of three distinct supports: alumina, niobia and 10 wt% niobia/alumina, prepared by wet impregnation of niobia precursor on alumina. Niobia addition decreased alumina acidity, improved catalyst reduci
Publikováno v:
Journal of Porous Materials. 27:707-717
Glycerol oxidation was investigated using as catalyst an acid zeolite (H-ZSM-5) impregnated with different contents of Pt (1 and 3 wt%), and H2O2 and air as oxidants. Catalysts were characterized by XRD, XRF, FT-IR, 27Al MAS NMR, N2 adsorption, NH3-T