采用异丙醇盐水解法制备Ba1x/2KxNiAl11O19 (x=0,0.5,1.0,1.5,2.0)催化剂.通过BET模型计算了其比表面积,用XRD和DSC-TG等技术及甲烷燃烧实验考察了催化剂的物理化学性能,研究了钾离子掺杂量对催化剂的结构以及对甲烷催化燃烧活性的影响.结果表明:催化剂在1200℃焙烧后可以形成完整的六铝酸盐晶型,同时具有较好的催化性能和高温稳定性,不同量的K和Ba离子掺杂对于催化剂的比表面积及孔径有较大的影响.Ba0.25K1.5 NiAl11O19催化剂具有较大的比表面积和较高的活性,1200℃焙烧后比表面积为61m2/g,催化甲烷燃烧的完全转化温度T90％为750℃.
参考文献
| [1] | Marina V. Bukhtiyarova;Aleksandra S. Ivanova;Elena M. Slavinskaya .Selective catalytic reduction of nitrogen oxide by ammonia on substituted strontium ferrites[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2010(1/2):230-240. |
| [2] | Marina V.Bukhtiyarova;Aleksandra S.Ivanova;Lyudmila M.Plyasova .Selective catalytic reduction of nitrogen oxide by ammonia on Mn(Fe)-substituted Sr(La)aluminates[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2009(2):193-205. |
| [3] | Kim Seongmin;Lee Dae-Won;Lee Joon Yeob et al.Catalytic combustion of methane in simulated PSA offgas over Mnsubstituted La-Sr-hexaaluminate (LaxSr1-xMnAl11O19)[J].Journal of Molecular Catalysis A:Chemical,2011,335(1-2):60. |
| [4] | 訾学红,戴洪兴,何洪.天然气催化燃烧催化剂的研究（Ⅱ）[J].工业催化,2008(05):35-41. |
| [5] | Li, F.;He, Y.;Zhang, L. .Multi-sites for Mn2+ in barium β-alumina[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2011(5):975-977. |
| [6] | 任晓光,郑建东,宋永吉.不同离子掺杂对镧六铝酸盐催化剂结构及其甲烷燃烧性能的影响[J].燃料化学学报,2011(09):717-720. |
| [7] | Energy demand and emissions from road transportation vehicles in China[J].Progress in energy and combustion science,2010(6):651-676. |
| [8] | Erik Elm Svensson;Magali Boutonnet;Sven G. Jaras .Stability of hexaaluminate-based catalysts for high-temperature catalytic combustion of methane[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2008(1/2):241-250. |
| [9] | 蒋政,侯红霞,郝郑平,康守方,李进军,胡春.La促进型六铝酸盐Ba1-xLaxFeAl11O19-δ催化甲烷燃烧性能[J].物理化学学报,2004(11):1313-1319. |
| [10] | Jang B L;Nelson R M;Spviey J J et al.Catalytic oxidation of methane over hexaaluminates and hexaluminate-supported Pd catalyst[J].Catalysis Today,1999,47(1-4):103. |
| [11] | 郑建东,任晓光,宋永吉,沈国良.温度对共沉淀法制备LaMnAl11O19催化剂的影响[J].燃料化学学报,2007(01):117-120. |
| [12] | 宋永吉,董留涛,李翠清,王虹,任晓光.不同方法制备LaCu0.8Zn0.2Al11O19-δ催化剂及其催化分解N2O活性研究[J].环境污染与防治,2009(09):19-22. |
| [13] | 郑建东,任晓光.水含量对醇盐水解制备LaMnAl11O19-δ催化剂结构及其甲烷燃烧性能的影响[J].稀土,2011(06):27-31. |
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