Low temperature biomimetic synthesis of the Li_2ZrO_3 nanoparticles containing Li_6Zr_2O_7 and high temperature CO_2 capture

摘要

Li_2ZrO_3 nanoparticles containing Li_6Zr_2O_7 were prepared by a biomimetic soft solution route and characterized with X-ray diffraction (XRD), transmission electron microscope (TEM) and nitrogen adsorption. The results show that the tetragonal Li_2ZrO_3 nanoparticles containing monoclinic Li_6Zr_2O_7 can be obtained using this simple method. The mean diameter of the nanoparticles is approximately 90 nm and the corresponding specific surface area is 23.7 m~2g~(-1). Moreover, the Li_2ZrO_3 nanoparticles obtained were thermally analyzed under a CO_2 flux to evaluate their CO_2 capture capacity at high temperature. It was found that the as-prepared Li_2ZrO_3 nanoparticles would be an effective acceptor for high temperature CO_2 capture.