采用一锅法制备了介孔Co-Al2O3催化剂,并首次用于甲烷部分氧化制合成气反应.结果表明,与普通浸渍法相比,一锅法制备的Co-Al2O3催化剂表现出更为优异的催化性能.合成的介孔Co-Al2O3催化剂具有大的比表面积和孔体积,以及规整有序的六方介孔孔道,Co物种高度分散,从而导致还原后高的金属分散度,而介孔孔道对金属纳米颗粒的约束作用可有效增强金属的抗烧结能力.
参考文献
| [1] | Choudhary VR.;Prabhakar B.;Mamman AS.;Rajput AM. .Partial oxidation of methane to CO and H-2 over nickel and/or cobalt containing ZrO2, ThO2, UO2, TiO2 and SiO2 catalysts[J].Fuel,1998(15):1803-1807. |
| [2] | Nishimoto H A;Nakagawa K;Ikenaga N O;Nishitani-Gamo M Ando T Suzuki T .[J].Applied Catalysis A:General,2004,264:65. |
| [3] | York A P E;Xiao T C;Green M L H .[J].Topics in Catalysis,2003,22:345. |
| [4] | Gao X X;Huang Ch J;Zhang N W;Li J H Weng W Zh Wan H L .[J].Catalysis Today,2008,131:211. |
| [5] | 张诺伟,黄传敬,匡飞平,高晓晓,翁维正,万惠霖.Mg助剂对Co/Mg/HZSM-5催化剂结构及其催化甲烷部分氧化制合成气性能的影响[J].物理化学学报,2008(12):2165-2171. |
| [6] | Zhang N W;Huang Ch J;Zhu X Q;Xu J D Weng W Zh Wan H L .[J].Chem Asian J,2012,7:1895. |
| [7] | Iglesia E .[J].Applied Catalysis A:General,1997,161:59. |
| [8] | Iglesia E;Soled S L;Fiato R A;Via G H .[J].Journal of Catalysis,1993,143:345. |
| [9] | Khodakov A Y;Chu W;Fongarland P .[J].Chemical Reviews,2007,107:1692. |
| [10] | Wang HY.;Ruckenstein E. .Conversions of methane to synthesis gas over Co/gamma-Al2O3 by CO2 and/or O-2[J].Catalysis Letters,2001(1/2):13-18. |
| [11] | Yuan Q;Yin AX;Luo C;Sun LD;Zhang YW;Duan WT;Liu HC;Yan CH .Facile synthesis for ordered mesoporous gamma-aluminas with high thermal stability[J].Journal of the American Chemical Society,2008(11):3465-3472. |
| [12] | Morris SM;Fulvio PF;Jaroniec M .Ordered Mesoporous Alumina-Supported Metal Oxides[J].Journal of the American Chemical Society,2008(45):15210-15216. |
| [13] | Arnoldy P;Moulijn J A .[J].Journal of Catalysis,1985,93:38. |
| [14] | Tung H C;Yeh C T;Hong C T .[J].Journal of Catalysis,1990,122:211. |
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：
-
10%
-
20%
-
30%
-
40%
-
50%