Despite the fact that Brazil is the world's largest niobium mineral producer, governmental
interest in exploration of the mineral leading to more valuable derived materials is scarce …

In this work, a series of mesoporous niobium phosphate material with different Cr content
(Cr/NbP) were synthesized and used as catalysts for glucose conversion to levulinic acid …

Mesoporous niobium oxophosphate (NBP) with high specific surface area (427m2/g) and
narrow pore size distribution (3–15nm) has been prepared using aqueous solution of …

Four niobium phosphate samples obtained by different methods were tested in the alkylation
of anisole with benzyl alcohol. The catalysts were characterized by XRD, N2 adsorption and …

This paper describes a new annular reactor for continuous UV photochemistry, which uses
easily interchangeable excimer lamps of different wavelengths. The reactor has narrow …

Solid acids are the green alternative for heterogeneous acid catalysis, in particular for
industrial processes exploiting biomass. Niobium–phosphorus oxides are valid candidates …

Mesoporous tantalum phosphate was prepared from tantalum tartrate complex and
ammonium dihydrogenphosphate, by using hexadecyltrimethylammonium bromide as …

Several niobium phosphate phases have been prepared, fully characterized and tested as
catalysts for the selective oxidation of ethane to ethylene. Three distinct niobium phosphate …

This paper describes a new annular reactor for continuous UV photochemistry, which uses
easily interchangeable excimer lamps of different wavelengths. The reactor has narrow …

Tantalum hydrogen phosphate, β-TaH (PO4) 2, has a three-dimensional structure that is
stable to remarkably high temperature (∼ 600° C) presumably due to the presence of strong …