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Effect of the acid activation on a layered titanosilicate AM-4: the fine-tuning of structural and physicochemical properties
(Elsevier, 2020)
info:eu-repo/semantics/article,
In this work we investigated the microporous layered titanosilicate AM-4 (Aveiro-Manchester material number 4) of a synthetic analogous the mineral Lintisite having edge-shared brookite-type TiO6 chains. The objective of ...
Recent progress in the application of Ni-based catalysts for the dry reforming of methane
(Taylor & Francis, 2021)
info:eu-repo/semantics/article,
Ni-based catalysts are highly efficient in methane-reforming processes. In the particular case of methane reforming in the presence of carbon dioxide, or dry reforming of methane (DRM), it is necessary to modify and control ...
Evidence for the synthesis of La-hexaaluminate from aluminum-containing saline slag wastes: correction of structural defects and phase purification at low temperature
(Elsevier, 2021)
info:eu-repo/semantics/article,
The synthesis of a lanthanum hexaaluminate from the aluminum extracted from a saline slag waste is presented for the first time. Briefly, a refluxing 2 M solution of HCl is used to extract the aluminum, giving 8.9 gAl/dm3 ...
Zeolite synthesis from aluminum saline slag waste
(Elsevier, 2020)
info:eu-repo/semantics/article,
This work describes the synthetic procedures developed to obtain zeolite X (NaX), zeolite A (LTA) and sodalite (SOD) using aluminum saline slag waste (AlSSW) as aluminum source in a two-step hydrothermal method involving ...
Inorganic–organic hybrids based on sepiolite as efficient adsorbents of caffeine and glyphosate pollutants
(Elsevier, 2020)
Artículo / Artikulua,
Sepiolite clay mineral was functionalized with (3-chloropropyl)triethoxysilane (ClPTES) or 3-[tri(ethoxy/methoxy)silyl] propylurea (TEMSPU) alkoxides and tested as adsorbent for herbicide glyphosate and also of caffeine, ...
Optimization of hydrocalumite preparation under microwave irradiation for recovering aluminium from a saline slag
(Elsevier, 2021)
Artículo / Artikulua,
Aluminium was successfully extracted by treating an aluminium slag with aqueous NaOH under reflux conditions. This solution was purified by precipitation of silicon species by addition of HCl up to pH = 1, and used for ...
Hydrothermal liquefaction of biomass as one of the most promising alternatives for the synthesis of advanced liquid biofuels: a review
(MDPI, 2021)
info:eu-repo/semantics/article,
The use of biofuels offers advantages over existing fuels because they come from renewable sources, they are biodegradable, their storage and transport are safer, and their emissions into the atmosphere are lower. Biomass ...
Structure and activity of nickel supported on hibonite-type La-hexaaluminates synthesized from aluminum saline slags for the dry reforming of methane
(Elsevier, 2021)
info:eu-repo/semantics/article,
This work describes the procedures followed to obtain four hibonite-type La-hexaaluminates (La-HA) using aluminum saline slag waste as the aluminum source. Briefly, an acid-extracted aluminum solution (8.9 gAl/L) was used ...
Bimetallic (Pt-Ni) La-hexaaluminate catalysts obtained from aluminum saline slags for the dry reforming of methane
(Elsevier, 2021)
info:eu-repo/semantics/article,
This work describes the synthesis of platinum-nickel/lanthanum hexaaluminates (PtNi/LHA) and their performance in terms of stability and catalytic activity in the dry reforming of methane (DRM) at 973 K. An Al solution ...
A nonconventional aluminum source in the production of alumina-pillared clays for the removal of organic pollutants by adsorption
(Elsevier, 2021)
Artículo / Artikulua,
This study is the first to propose the use of aluminum saline slag as aluminum source in the synthesis of alumina pillared clays (Al-PILC). Aluminum was extracted from this waste using both alkaline and acid solutions and ...