The decomposition of CH 2 FCF 3 over some phosphate catalysts was studied. CH 2 FCF 3 began to react at 250, 300, and 450 °C over Zr 3 (PO 4 ) 4 , AlPO 4 , and BPO 4 , respectively, and the conversion reached 100% at 475, 500, and 700 °C, respectively. The primary reaction over Zr 3 (PO 4 ) 4 was estimated to be CH 2 FCF 3 + H 2 O + 1 / 2 O 2 f 2CO + 4HF, whereas the reactions over AlPO 4 and BPO 4 wereComplete decomposition requires both hydrolysis and oxidation. The oxidation activities of these phosphate catalysts are not high enough to accomplish complete decomposition. However, AlPO 4 -based catalysts can be combined with each Co 3 O 4 , Mn 2 O 3 , CuO, and Cr 2 O 3 at a phosphate content of 1/10 by volume to make them sustainable at 550-550 °C. The addition of Ce to AlPO 4 brought about a promotion effect in CH 2 FCF 3 decomposition similar to that for CCl 2 F 2 decomposition. This might suggest a similarity in the reaction mechanism. The primary reaction in the absence of oxygen was estimated to be CH 2 FCF 3 + H 2 O f CO + C + 4HF.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.