摘要
采用水(溶液)/二甲苯/SDS/正戊醇反相微乳液体系,用水合肼还原硫酸镍制备了纳米级(15～100nm)镍微粒,采用XRD、TEM等法对产物进行了鉴定与表征,考察了微乳液体系诸构成因素对纳米级镍制备的影响规律。
Ultrafine nickel particles were prepared by the W/O microemulsion method through the reduced reaction of NiSO4 by N2H4. 2H(2)O. The product was characterized by TEM and XRD method. The prepared particles are spherical and their size is well-distributed. The factors of compositions of microemulsion system which influence the size of particles were studied. The experiment result shows that the greater the content ratio of water to surfactant(mol/mol) is, the smaller the water nucleus is, so the smaller the nickel particles are; the interface film changes more strongly when the content of amyl alcohol as assistent surfactant increases in a proper range, so the size of nickel particles decreases; and producing of crystal nucleus speeds up when the concentration of Ni2+ increases, so the size of nickel particles decreases.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2001年第4期491-495,共5页
Chinese Journal of Inorganic Chemistry
基金
山西省教委开发项目(No.10155)
