采用H2-TPR技术研究了不同方法制备的Mo/HZSM-5催化剂,并借助 1H MAS NMR等表征手段对Mo/HZSM-5催化剂还原过程中可能出现的6个TPR谱峰进行了详细归属,首次指认了分布于分子筛孔道内并与B酸性位相互作用的Mo物种的还原峰. 此外,还考察了各种Mo基催化剂在甲烷无氧芳构化反应中的催化性能. 结果表明,与B酸中心相互作用的Mo物种比其他形式的Mo物种具有更好的活性和稳定性.
参考文献
| [1] | Wang L S;Tao L X;Xie M S;Xu G F Huang J S Xu Y D .[J].Catalysis Letters,1993,21(1-2):35. |
| [2] | Xu Y D;Lin L W .[J].Applied Catalysis A:General,1999,188(1-2):53. |
| [3] | Xu YD.;Bao XH.;Lin LW. .Direct conversion of methane under nonoxidative conditions[J].Journal of Catalysis,2003(1/2):386-395. |
| [4] | Xu Y D;Liu S T;Wang L S;Xie M S Guo X X .[J].Catalysis Letters,1995,30(1-4):135. |
| [5] | Weckhuysen BM.;Rosynek MP.;Lunsford JH.;Wang DJ. .Conversion of methane to benzene over transition metal ion ZSM-5 zeolites - I. Catalytic characterization[J].Journal of Catalysis,1998(2):338-346. |
| [6] | 刘社田;徐奕德;郭燮贤;王林胜, 谢茂松 .[J].催化学报,1995,16(02):102. |
| [7] | Zhang CL.;Yuan Y.;Zhang WX.;Wu TH.;Lin LW.;Li SA. .Aromatization of methane in the absence of oxygen over Mo-based catalysts supported on different types of zeolites[J].Catalysis Letters,1998(4):207-213. |
| [8] | Ding W;Li S;Meitzner G D;Iglesia E .[J].Journal of Physical Chemistry B,2001,105(02):506. |
| [9] | 刘红梅,申文杰,刘秀梅,包信和,徐奕德.分子筛的酸处理对Mo/HZSM-5催化甲烷无氧芳构化反应性能的影响[J].催化学报,2004(09):688-692. |
| [10] | Arnoldy P;De Jonge J C M;Moulijn J A .[J].Journal of Physical Chemistry,1985,89(21):4517. |
| [11] | 耿云峰,王希涛,钟顺和.MoO3/SiO2催化剂的异丁烷选择氧化反应性能[J].分子催化,2002(04):273-278. |
| [12] | Ma D;Shu Y Y;Bao X H;Xu Y D .[J].Journal of Catalysis,2000,189(02):314. |
| [13] | Bond G C;Tahir S F .[J].Applied Catalysis A:General,1993,105(02):281. |
| [14] | Regalbuto J R;Ha J W .[J].Catalysis Letters,1994,29(1-2):189. |
| [15] | Williams C C;Ekerdt J G;Jehng J M;Hardcastle F D Wachs I E .[J].Journal of Physical Chemistry,1991,95(22):8791. |
| [16] | Barath F;Turki M;Keller V;Maire G .[J].Journal of Catalysis,1999,185(01):1. |
| [17] | Cordero R L;Gil Llambias F J;Agudo A L .[J].Applied Catalysis,1991,74(01):125. |
| [18] | Liu W;Xu Y D .[J].Journal of Catalysis,1999,185(02):386. |
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