摘要
Volume 40,Number 3,2006Study on graphite surface modification by heterogeneous nucleation process. Cao Ran,Li Hongxia（161-164）. -Graphite,Surface modification,Heterogeneous nucleation,Zirconia,Oxidation resistance - Flaky graphite particles were coated by ZrOCl2·8H2O as precursors by heterogeneous nucleation process.The effects of factors such as pH values（2.4-5.1）,concentration of the precursor solution（0.005-0.1 mol·L -1）,mixing method of graphite and precursor solution on the surface modification of graphite were studied. Result shows that:1)The preferable technical process for heterogeneous nucleation modified graphite is to mix the graphite suspension and precursor solution with concentration 0.025 mol·L -1 and then drip ammonia water to adjust the pH value to 3.6;2)By surface modification,the ZrO2 particles are evenly coated on graphite surface and therefore improves oxidation resistance and dispersion ability of graphite.
