以在流动N2中热处理的Mg(OH)2醇凝胶制得的纳米氧化镁(MgO-AN)为载体,浸渍Ni(NO3)2后经不同温度焙烧得到Ni含量为8.8%的NiO/MgO样品,还原后制得Ni/MgO-AN催化剂. 采用XRD和TPR技术对NiO和MgO之间形成的NiO-MgO固溶体进行了表征,并将Ni/MgO-AN催化剂用于催化CO2重整CH4反应. 结果表明,在低于650 ℃焙烧时, NiO不能完全溶入MgO中,NiO/MgO样品中存在自由的NiO粒子,还原态Ni/MgO-AN催化剂在CO2重整CH4反应中的稳定性低; 当样品焙烧温度等于或高于650 ℃时,NiO可以完全溶入MgO中形成NiO-MgO固溶体,还原态Ni/MgO-AN催化剂具有高稳定性.
参考文献
| [1] | Chen YG.;Fujimoto K.;Tomishige K. .PROMOTION IN ACTIVITY AND STABILITY OF NICKEL-MAGNESIA SOLID SOLUTION CATALYST BY STRUCTURAL REARRANGEMENT VIA HYDRATION FOR REFORMING OF CH4 WITH CO2[J].Chemistry Letters,1997(10):999-1000. |
| [2] | Chen Y-G;Tomishige K;Yokoyama K;Fujimoto K .[J].Applied Catalysis A:General,1997,165(1-2):335. |
| [3] | Tomishige K;Yamazaki O;Chen Y G;Yokoyama K,Li X H,Fujimoto K .[J].Catalysis Today,1998,45(1-4):35. |
| [4] | Swaan H M;Kroll V C H;Martin G A;Mirodatos C .[J].Catalysis Today,1994,21(2-3):571. |
| [5] | Ruckenstein E;Hu Y H .[J].Applied Catalysis A:General,1995,133(01):149. |
| [6] | Hu Y H;Ruckenstein E .[J].Catalysis Letters,1997,43(1-2):71. |
| [7] | Hu Y H;Ruckenstein E .[J].Catalysis Letters,1996,36(3-4):145. |
| [8] | Ruckenstein E;Hu Y H .[J].Applied Catalysis A:General,1997,154(1-2):185. |
| [9] | Hu YH.;Ruckenstein E. .Binary MgO-based solid solution catalysts for methane conversion to syngas [Review][J].Catalysis Reviews. Science and Engineering,2002(3):423-453. |
| [10] | 李基涛,陈明旦,严前古,万惠霖,蔡启瑞.高稳定度CH4/CO2重整Ni/MgO催化剂的研究[J].高等学校化学学报,2000(09):1445-1447. |
| [11] | Xu B-Q;Wei J-M;Wang H-Y;Sun K-Q,Zhu Q-M .[J].Catalysis Today,2001,68(1-3):217. |
| [12] | 陈吉祥,邱业君,张继炎,苏万华.La2O3和CeO2对CH4-CO2重整Ni/MgO催化剂结构和性能的影响[J].物理化学学报,2004(01):76-80. |
| [13] | Yoshida T;Tanaka T;Yoshida H;Funabiki T,Yoshida S .[J].Journal of Physical Chemistry,1996,100(06):2302. |
| [14] | Highfield J G;Bossi A;Stone F S;Poncelet G,Grange P,Jacobs P A.Preparation of Catalysts[M].Amsterdam:Elsevier,1983:181. |
| [15] | Arena F;Frusteri F;Parmaliana A;Plyasova L,Shmakov A N .[J].Journal of the Chemical Society,Faraday Transactions,1996,92(03):469. |
| [16] | 李艳,叶青,魏俊梅,徐柏庆.制备高效稳定CO2重整甲烷Ni/ZrO2催化剂的新方法[J].催化学报,2004(04):326-330. |
| [17] | 王玉和,徐柏庆.加压下Ni/MgO催化剂催化CO2重整CH4反应的特性[J].催化学报,2005(04):277-282. |
| [18] | Arena F;Licciardello A;Parmaliana A .[J].Catalysis Letters,1990,6(01):139. |
| [19] | Parmaliana A;Arena F;Frusteri F;Giordano N .[J].Journal of the Chemical Society,Faraday Transactions,1990,86(14):2663. |
| [20] | Bond G C;Sarsam S P .[J].Applied Catalysis,1988,38(02):365. |
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%