High temperature layered mixed-metal oxide material with improved stability

摘要

Aluminum and mixed metal oxide particles containing M, Al and C by heating the adamantane-intercalated layered double-hydroxide (LDH) particles (i) at reaction temperatures of 400 ° C to 800 ° C to form mixed- the mixture containing the oxide-there is provided a method for producing the metal oxide particles (ii), (i) has the formula _{[M 1-x Al x (} OH) 2] (a) x · mH2O ( wherein, x is 0.14 to 0.33, m is 0.33 to 0.50, M is selected from Mg, Ca, Co, Ni, Cu, or Zn and A is adamantanecarboxylate), and an aspect ratio, / Thickness. (Preferably CO2 or toxic ions, especially phosphate, arsenate, chromate, bromide, iodide and sulfide) from the process stream by contact with the MMO particles (ii) A method of removal is also provided.