State Key Laboratory of Heavy Oil Processing;
China University of Petroleum;
Qingdao 266555;
Shandong;
China;
Key Laboratory of Catalysis;
CNPC;
China University of Petroleura;
Qingdao 266555;
Shandong;
China;
College of Physics Science and Technology;
China University of Petroleum;
Dongying 257061;
Shandong;
China;
磁性微球; 氧化铝; 制备; 透射电子显微镜; 扫描电子显微镜; 振动样品磁强计; 二氧化硅层; 性质;