依溶胶—凝胶法,将不同浓度的乙醇锆溶液经水解聚合生成凝胶,再经热分解制得的Z_rO_2,其比表面均较由一般锆盐经热分解而得的Z_rO_2为大。在所研究的浓度范围内,Z_rO_2的比表面随浓度的增加而增大,并随温度升高而减小。又SEM观察表明,原始溶液浓度较小时,晶体的物理结构较好。 According to the sol-gel method, different concentrations of zirconium ethoxide solution were hydrolyzed and polymerized to form gels, and then the pyrolyzed Z_rO_2 was larger than that of Z_rO_2 obtained from thermal decomposition of general zirconium salts. In the concentration range studied, the specific surface area of ​​Z_rO_2 increases with increasing concentration, and decreases with increasing temperature. SEM observation also showed that the original solution concentration is small, the physical structure of the crystal is better.