The results show that well-defined La_2Zr_2O_7 powders with a single-phase pyrochlore structure can be obtained at 1100 ℃ for 3 h in air and behave excellent resistance to carbon deposition for the reaction of CO_2 reforming of methane.

For its well properties showing in research about immobilizing high level radioactive waste,pyrochlore which stably exists in nature has been well studied in recent years.

In this article, the physi chemical and kinetic features of supported Pd catalysts and pyrochlore complex oxide were investigated, and the efforts were made to seek a more promising material.