摘要
Nanocrystalline Trimanganese tetroxide (Mn3O4) was synthesized by solvothermal reaction of MnO2 and C2H5OH. The dependence of the Mn3O4 nanoparticle size on synthesis temperature was investigated using X-ray diffraction (XRD) technique. The mechanism for the nanocrystallite growth was also studied. The results indicate that the prepared Mn3O4 has a nanocrystalline structure with XRD average crystal size varing from 54 to 70 nm depending on the synthesis temperature. The activation energy for the nanocrystallite growth was calculated to be 11.36 kJ·mol-1 according to the kinetic theory of nanocrystallite growth, indicating that Mn3O4 nanocrystallite grows primarily by means of an interfacial reaction during the solvothermal process.
Nanocrystalline Trimanganese tetroxide (Mn3O4) was synthesized by solvothermal reaction of MnO2 and C2H5OH. The dependence of the Mn3O4 nanoparticle size on synthesis temperature was investigated using X-ray diffraction (XRD) technique. The mechanism for the nanocrystallite growth was also studied. The results indicate that the prepared Mn3O4 has a nanocrystalline structure with XRD average crystal size varing from 54 to 70 nm depending on the synthesis temperature. The activation energy for the nanocrystallite growth was calculated to be 11.36 kJ(.)mol(-1) according to the kinetic theory of nanocrystallite growth, indicating that Mn3O4 nanocrystallite grows primarily by means of an interfacial reaction during the solvothermal process.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2005年第6期929-932,F011,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.20376086)。
关键词
四氧化三锰
溶剂热法
制备
纳米晶
动力学
活化能
晶粒生长
trimanganese tetroxide (Mn3O4)
solvothermal method
nanocrystallites
kinetics
activation energy
