Potassium fluoride,anhydrous
           Potassium fluoride,extra pure
           Potassium fluoride,Granular
           Silicon Dioxide
           Hydrofluoric acid
           Synthetic Cryolite
           Potassium Fluoaluminate
           Ammonium bifluoride
           Potassium Bifluoride
           Aluminium fluoride
           Sodium fluoride
           Potassium Fluorosilicate
           Fluorosilicic Acid
           Sodium silicofluoride
           Potassium Hydroxide Flakes
           Magnesium Fluoride
           Magnesium fluorosilicate
           Barium Fluoride
  News Center

The acid treatment of activated carbon(AC) can change the surface oxygen-containing functional groups, thereby strengthening the anchoring of the metal precursor and the activated carbon carrier, changing the dispersion and surface alkalinity of the catalyst. When the AC is treated with HCl, HNO and HF, A series of AC-supported RbNO-Potassium Fluoride catalysts were investigated and their catalytic performance in the CFI reaction was investigated.

The catalysts were characterized by N-adsorption-desorption, Boehm titration, CO-programmed desorption, and X-ray photoelectron spectroscopy. 

The results show that the RbNO-KF /AC catalyst has higher dispersibility and moderate weak alkaline after AC treatment with HCl, which is favorable for the synthesis of CFI by gas phase. The order of dispersion of each catalyst is: RbNO-KF / AC (HNO)> RbNO-KF / AC (HF)> RbNO-Potassium Fluoride / AC (HCl)> RbNO-KF / AC. This sequence is consistent with the trend of acid and functional groups on the surface of the corresponding carrier. The basicity of the surface of the catalyst is related to the oxygen content of the AC surface and the surface basicity.