摘要
用甲酸代替水作反应介质,以六水合硝酸亚铈为原料,采用非水溶剂水热法制备纳米CeO2;以六水合硝酸亚钴为原料,碳酸铵为沉淀剂,采用均相沉淀法在不同反应条件下,合成纳米Co3O4.用XRD,TEM,BET等手段测定产品的形貌和纳米尺度.实验表明,所合成的CeO2,Co3O4,粒径大小分别在10~20nm和20~30nm范围.该材料作为镍氢电池负极添加剂,大大改良电池的低温放电性能,增加可充电次数.
Nano-scale CeO_2 and Co_3O_4 particles were synthesized by using hydrothermal technique and homogeneous precipitation method. The microstructure and morphology of the nano-scale CeO_2 and Co_3O_4 were investigated by means of XRD, TEM and BET. The results show that their particles are about 10~20 nm and 20~30 nm, respectively, in diameter.
出处
《厦门大学学报(自然科学版)》
CAS
CSCD
北大核心
2004年第2期275-277,共3页
Journal of Xiamen University:Natural Science
基金
国家自然科学基金(20273053
20023001
29933040)
福建省自然科学基金(E0310001)资助