作者:C. Petit、A. Kaddouri、S. Libs、A. Kiennemann、J.L. Rehspringer、P. Poix
DOI:10.1006/jcat.1993.1087
日期:1993.4
activity in oxidative coupling of methane. Calculations of the rare earth-oxygen (AO) and cocation-oxygen (BO) bond energies provide a new way to estimate the influence of bulk parameters on the formation of C2 hydrocarbons. The observed values of C2 yields on A2B2O7 catalysts (A = Sm, Gd or Eu) (B = Ti, Zr, or Sn) indicate that they increase with decreasing cocation-oxygen bond energy. The best of
通式A 2 B 2 O 7的化合物已通过X射线衍射表征,并测试了甲烷氧化偶联中的催化活性。稀土-氧(AO)和共-氧(BO)键能的计算提供了一种新的方法来估算体积参数对C 2烃形成的影响。在A 2 B 2 O 7催化剂(A = Sm,Gd或Eu)(B = Ti,Zr或Sn)上观察到的C 2收率值表明,它们随着共-氧键能的降低而增加。这些系统中最好的(Sm 2 Sn 2 O 7)给出C 2 在973 K时产率为20%。