欢迎登录材料期刊网

材料期刊网

高级检索

采用等体积浸渍法结合程序升温还原技术合成了一系列CoN_x/CNTs催化剂,通过XRD、BET、TGDSC、TPR等手段,结合氨分解反应,研究了它们的表面性质和反应性能,结果表明,CoNx/CNTs催化剂对氨分解反应具有良好的催化活性,在500℃时氨转化率可达到66.46%.

A series of carbon nanotube supported cobalt nitrides are synthesized through impregnation methods and temperature-programmed reaction.The surface composition and reaction performance are studied by means of ammonia decomposition,XRD,BET,TG-DSC,H_2-TPR techniques.The results show that CoN_x/CNTs exhibited high activity for ammonia decomposition,the conversion of ammonia is up to 66.46%at 500℃.

参考文献

[1] Kojima R.;Aika K. .Molybdenum nitride and carbide catalysts for ammonia synthesis[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2001(1/2):141-147.
[2] Hada K et al.Characterization and HDS activity of cobalt molybdenum nirtides[J].Journal of Physical Chemistry B,2001,105:4084.
[3] Volpe L;Boudart M .Compounds of molybdenum and tungsten with high specific surface area[J].Solid State Chemistry,1985,59(03):332.
[4] 柳云骐,刘晨光,阙国和.合成大比表面γ-Mo2N的新方法[J].无机化学学报,1999(04):541-544.
[5] Oyama S T et al.Preparation and catalytic properties of transition metal carbides and nitrides[J].Catly Today,1992,15:179.
[6] 张强 .载体和助剂对氮化钨催化剂性能的影响[D].北京化工大学,2006.
[7] Chun Shan LU,Xiao Nian LI,Yi Feng ZHU,Hua Zhang LIU,Chun Hui ZHOU.Ammonia Decomposition over Bimetallic Nitrides Supported on γ-Al2O3[J].中国化学快报(英文版),2004(01):105-108.
[8] 杨树武;徐江;阎卫宏 等.SiO_2负载的氮化钼催化剂的合成与表征[J].催化学报,1998,19(02):125.
[9] Li J.;Haslett TL.;Moskovits M. .Nanoscale electroless metal deposition in aligned carbon nanotubes[J].Chemistry of Materials,1998(7):1963-1967.
[10] Hernadi K;Ljubbovi E;Seo J W et al.Synthesis of MWNT-based composite materials with inorgamic coating[J].Acta Materialia,2003,51(05):1447.
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%