نتایج جستجو برای: hydrotalcite derived catalysts
تعداد نتایج: 513488 فیلتر نتایج به سال:
Ni(Mg)Al-layered hydroxides with molar ratios of (Ni + Mg)/Al = 2, 3, 4 and Ni/(Ni Mg) 0.1, 0.3, 0.5, 0.7 were synthesized by mechanochemical activation. It has been proven that the phase composition samples was presented a single hydrotalcite up to 0.5. For first time, catalysts based on prepared route have studied in reaction furfural hydrogenation. The correlation between conversion, selecti...
Enhanced methanol production is obtained over a non-promoted Cu–MgO–Al2O3 mixed oxide catalyst derived from Cu–Mg–Al hydrotalcite precursor (HT) containing narrowly distributed small Cu NPs (2 nm). Conversions close to the equilibrium (?20%) with selectivity of 67% are achieved at 230 °C, 20 bar, and space velocity 571 mL·gcat–1·h–1. Based on operando spectroscopic studies, striking activity th...
CO2 conversion In article number 2100185, Yimin Xuan and co-workers introduced NiCo alloys derived from AlMg hydrotalcite for photothermal synergetic with CH4 ultrahigh light-to-fuel efficiency of 33.8% low carbon deposition rate. The is attributed to the high solar absorptance alloys, unique synergistic catalysis active sites, photo-enhanced reactant activation.
Hydrotalcite nanoparticles were synthesized by co-precipitation of aqueous Mg(NO(3))(2)·6H(2)O and Al(NO(3))(3)·9H(2)O in the presence of urea and subsequent microwave-hydrothermal treatment. The nanoparticles were activated with saturated aqueous Ca(OH)(2), and used to hydrolyze cellulose. A maximum hydrolysis yield of 47.4% with high glucose selectivity (85.8%) was achieved at 423 K. The nano...
Heterogeneous catalysts are receiving more importance for the transesterification of triglycerides present in any oils or fats to produce biodiesel. They are reusable, environmentally benign, could give high quality of products, and more effective than acid catalysts and enzymes for biodiesel production. Recently, heterogeneous catalysts derived from both waste industrial and biological resourc...
Joule heating studies on nanoparticle/nanocarbon hybrid aerogels have been reported, but systematic investigations hydrotalcite-derived catalysts supported onto reduced graphene oxide (rGO) are rare. In this study, Cu-Al2O3 nanoparticles were incorporated into a porous and multifunctional rGO aerogel support for fabricating electrically conducting Cu-Al2O3/rGO aerogels, their properties investi...
Due to the limited reaction rate of oxygen reduction (ORR), it is considered as a limiting factor in performance fuel cells and metal-air batteries. Platinum benchmark catalyst for ORR; however, scarcity platinum, its high price, drift phenomenon, insufficient durability, susceptibility gas poisoning are reasons constant search new ORR catalysts. Carbon-based catalysts show exceptional promise ...
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