Magnesium-based solid acid catalysts exhibit satisfactory catalytic performance for the preparation of fluorocarbons. In the present study, magnesium fluoride with high surface area was obtained by template method. The influences of SiO_2 template doping amount on phase structure, porosity, and surface acidity of MgF_2 were investigated. Physical and chemical properties of the as-prepared MgF_2 were characterized by N_2 physical adsorption-desorption iso-therms, X-ray powder diffraction(XRD), NH_3-temperatu...