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High catalytic activity of tungstate intercalated in hydrotalcite-encapsulated magnetic Fe3O4 nanoparticles have been prepared. High resolution transmission electron microscopy characterization demonstrated the formation of Fe3O4 nanoparticles within LDH matrix with a mean diameter of 1–3 nm. The catalyst of WO42−/LDH@Fe3O4 exhibited excellent catalytic activity for the oxidation of various sulfides...
A new way was provided for in situ synthesized FCC catalyst. Characterization and evaluation results indicated the catalyst is more suitable for cracking resid feed because of its unique manufacturing process which makes this catalyst has appropriate pore structures in which large resid molecules are more accessible to the active sites. The high zeolite content (above 40%) keeps the catalyst having...
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