欢迎登录材料期刊网

材料期刊网

高级检索

以脱油沥青(Deoiled Asphalt)作原料,用热处理法制备了内包金属镍的纳米碳洋葱.用X-射线衍射仪(XRD)和高分辨透射电镜(HRTEM)对产物进行表征.结果表明:在2000℃温度下真空热处理后,镍粒子大多被数层碳壳包覆形成内包镍的纳米碳洋葱,颗粒多为准球形结构,尺寸在10-30nm范围,晶化程度较高,结构较完善.为内包镍纳米碳洋葱的制备开拓了廉价生产的新途径.

参考文献

[1] 梁文杰.重质油化学[M].东营:中国石油大学出版社,2000
[2] 秦匡宗;郭绍辉.石油沥青质[M].北京:石油工业出版社,2002
[3] Xu B S;Tanaka S I .[J].Acta Materialia,1998,46(15):5249.
[4] Dravid VP;Host JJ;Teng MH;Eliiott B Hwang J Johnson DL et al.Controlled-size nanocapsules[J].NATURE,1995,374(6523):602.
[5] Subramoney S. .Novel nanocarbons - Structure, properties, and potential applications [Review][J].Advanced Materials,1998(15):1157-1171.
[6] Jiao J.;Wang XK.;Withers JC.;Seraphin S. .PREPARATION AND PROPERTIES OF FERROMAGNETIC CARBON-COATED FE, CO, AND NI NANOPARTICLES[J].Journal of Applied Physics,1996(1):103-108.
[7] Host JJ.;Parvin K.;Dravid VP.;Alpers JL.;Sezen T.;LaDuca R.;Block JA. .Effect of annealing on the structure and magnetic properties of graphite encapsulated nickel and cobalt nanocrystals[J].Journal of Applied Physics,1998(2):793-801.
[8] Harris PJF.;Tsang SC. .A simple technique for the synthesis of filled carbon nanoparticles[J].Chemical Physics Letters,1998(1/2):53-58.
[9] Tomita S.;Fujii M.;Hayashi S.;Yamamoto K.;Hikita M. .A new and simple method for thin graphitic coating of magnetic-metal nanoparticles[J].Chemical Physics Letters,2000(5-6):361-364.
[10] Marsh H.;Martinez-Escandell M.;Rodriguez-Reinoso F. .Semicokes from pitch pyrolysis:mechanisms and kinetics[J].Carbon: An International Journal Sponsored by the American Carbon Society,1999(3):363-390.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%