The crystal structure of the title compound has been determined using three-dimensional X-ray diffraction data, from 839 reflections; crystals are orthorhombic, space group P212121, with unit-cell dimensions a= 9.405(1), b= 9.405(1), c= 12.321(1), Z= 4. The structure has been solved usi...
The chemical structure of HNT consists of silicon dioxide tetrahedrons at the outer surface of the tube and aluminum oxide octahedrons at the inner surface of the tube with a lumen at the center. These characteristics should facilitate ion transfer for ion conductive materials [16,17]. Ultrasonic...
According to analysis of NH3-TPD, FT-IR, and H2-TPR results, sodium salts poisoned catalysts reduced the Lewis acid sites and redox capacity. They also increased Brønsted acid sites and V5+=O bonds strength. The presence of the V5+=O bonds facilitates SO2–SO3 conversion. XPS results ...