Hydrothermal synthesis and characterization of microporous crystals of trivalent metal-containing zirconium phosphates

Production of C5/C6 Sugar Alcohols by Hydrolytic Hydrogenation of Raw Lignocellulosic Biomass over Zr Based Solid Acids Combined with Ru/C

“…Besides P loss, the XRD pattern and TEM images showed that ZrP underwent the amorphous to crystalline transformation during hydrothermal treatment and recalcination (Figure 8A and C). 48 After hydrothermally treatment and recalcination, however, the large acid density of 1.71 mmol/g and acid distribution (Table 2 and Figure 8D) are very similar to the case of the fresh one. In ZrP, the Zr−O− P, P−OH, and P−O−P groups were detected by FT-IR.…”

“…The results showed that the Zr and Ru losses were 1.5 and 12 ppm, respectively, indicating that leaching of both metals is negligible. Besides P loss, the XRD pattern and TEM images showed that ZrP underwent the amorphous to crystalline transformation during hydrothermal treatment and recalcination (Figure A and C) . After hydrothermally treatment and recalcination, however, the large acid density of 1.71 mmol/g and acid distribution (Table and Figure D) are very similar to the case of the fresh one.…”

Synthesis and magnetic property of submicron Bi2Fe4O9

“…Hydrothermal route has been extensively used in recent years due to easy control of chemical homogeneity, purity, morphology, shape, and phase composition of the products under moderate conditions [5,6]. Many important functional materials have been successfully prepared by hydrothermal route, such as microporous crystals, superionic conductors, chemical sensors, electronically conducting solids, complex oxide ceramics and fluorides, magnetic materials, and luminescence phosphors [7][8][9][10][11][12][13][14][15]. Basically, the mechanism of hydrothermal reactions abides by a liquid nucleation model [16].…”

CuFe2O4 and ZrP2O7 nanoparticles as highly efficient catalysts for the one-pot synthesis of phthalazine derivatives under solvent-free conditions

“…49-1079). For investigation of the in uence of ultrasound irradiation in this reaction, the synthesis of nano ZrP 2 O 7 was compared with techniques such as hydrothermal, solvothermal, and solid state methods [61][62]. As shown in Table 2, particle sizes of nano ZrP 2 O 7 prepared via conventional methods were ranging from 200 nm to 1 m. However, the size of ZrP 2 O 7 nanoparticles prepared in the presence of ultrasound was reduced to 10 nm.…”