以不同温度焙烧得到的Zr0.5Al0.5O1.75复合氧化物为载体,制备了系列1.5%Pd/Zr0.5Al0.5O1.75催化剂样品.采用N2吸附-脱附、X射线衍射、H2程序升温还原、O2程序升温脱附及CO化学吸附等手段对催化剂进行了表征,并测试了催化剂在模拟稀燃天然气汽车尾气中的活性和抗H2O中毒性能.结果表明,载体焙烧温度对催化剂活性的影响很大,其中以950℃焙烧时催化剂的活性最高.在不含H2O条件下,该催化剂对甲烷的起燃温度(T50)和完全转化温度(T90)分别为274和315℃;而在含H2O条件下的T50和T90分别为325和356℃,表现出较高的低温活性和优良的抗H2O中毒能力.
参考文献
| [1] | Gélin P;Primet M .[J].Applied Catalysis B:Environmental,2002,39:1. |
| [2] | Persson K;Ersson A;Jansson K;Fierro J L G J(a)r(a)s S G .[J].Journal of Catalysis,2006,243:14. |
| [3] | Burch R.;Urbano FJ. .INVESTIGATION OF THE ACTIVE STATE OF SUPPORTED PALLADIUM CATALYSTS IN THE COMBUSTION OF METHANE[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,1995(1):121-138. |
| [4] | Reddy BM;Khan A .Recent advances on TiO2-ZrO2 mixed oxides as catalysts and catalyst supports[J].Catalysis Reviews. Science and Engineering,2005(2):257-296. |
| [5] | 马中义,徐润,杨成,魏伟,李文怀,孙予罕.不同形态ZrO2的制备及其表面性质研究[J].物理化学学报,2004(10):1221-1225. |
| [6] | Epling W S;Hoflund G B .[J].Journal of Catalysis,1999,182:5. |
| [7] | Nami K;Furuta K;Yata H;Nishida A Kohtoku Y Matsuzaki T .[J].Catalysis Today,1998,45:173. |
| [8] | Sekizawa K;Widjaja H;Maeda S;Ozawa Y Eguchi K .[J].Catalysis Today,2000,59:69. |
| [9] | Fujimoto K.;Avalos-Borja M.;Iglesia E.;Ribeiro FH. .Structure and reactivity of PdOx/ZrO2, catalysts for methane oxidation at low temperatures[J].Journal of Catalysis,1998(2):431-442. |
| [10] | Yang S W;Maroto-Valiente A;Benito-Gonzalcz M;Rodriguez-Ramos I Guerrero-Ruiz A .[J].Applied Catalysis B:Environmental,2000,28:223. |
| [11] | Nomura K.;Nakamura Y.;Yoshida H.;Satsuma A.;Hattori T.;Noro K. .Combustion of a trace amount of CH4 in the presence of water vapor over ZrO2-supported Pd catalysts[J].Catalysis Letters,1999(2/3):127-130. |
| [12] | Labaki M.;Siffert S.;Lamonier JF.;Zhilinskaya EA.;Aboukais A. .Total oxidation of propene and toluene in the presence of zirconia doped by copper and yttrium - Role of anionic vacancies[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2003(3):261-271. |
| [13] | Gélin P;Urfels L;Primet M;Tena E .[J].Catalysis Today,2003,83:45. |
| [14] | Persson K.;Thevenin PO.;Jansson K.;Agrell J.;Jaras SG.;Pettersson LJ. .Preparation of alumina-supported palladium catalysts for complete oxidation of methane[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2003(1):165-174. |
| [15] | Yazawa Y;Yoshida H;Takagi N;Komai S C Satsuma A Hattori T .[J].Applied Catalysis B:Environmental,1998,19:261. |
| [16] | 蔡黎,赵明,皮展,龚茂初,陈耀强.Ce-Zr-La-Al2O3的制备及负载的单Pd三效催化剂[J].催化学报,2008(02):108-112. |
| [17] | Ka(s)par J;Fomasiero P;Hiekey N .[J].Catalysis Today,2003,77:419. |
| [18] | Simplício L M T;Brand(a)o S T;Sales E A;Lietti L Bozon-Verduraz F .[J].Applied Catalysis B:Environmental,2006,63:9. |
| [19] | Farrauto R J;Hobson M C;Kennelly T;Waterman E M .[J].Applied Catalysis A:General,1992,81:227. |
| [20] | Ribeiro F H;Chow M;Dallabera R A .[J].Journal of Catalysis,1994,146:537. |
| [21] | 龙恩艳,王云,张晓玉,李移乐,龚茂初,陈耀强.Zr基载体负载Pd催化剂用于贫燃天然气汽车尾气净化[J].催化学报,2010(03):313-316. |
| [22] | Lapisardi G;Gélin P;Kaddouri A;Garbowski E Da Costa S .[J].Topics in Catalysis,2007,42-43:461. |
| [23] | Lapisardi G;Urfels L;Gélin P;Primet M Kaddoufi A Garbowski E Toppi S Tena E .[J].Catalysis Today,2006,117:564. |
| [24] | Zhang X Y;Long E Y;Li Y L;Zhang L J,Guo J X,Gong M Ch,Chen Y Q .[J].Journal of Mol Caml A,2009,308:73. |
| [25] | Matsouka V;Konsolakis M;Lambert R M;Yentekakis I V .[J].Applied Catalysis B:Environmental,2008,84:715. |
| [26] | Burch R .[J].Catalysis Today,1997,35:27. |
| [27] | Butch R;Urbano F J;Loader P K .[J].Applied Catalysis A:General,1995,123:173. |
| [28] | van Giezen J C;van den Berg F R;Kleinen J L;van Dillen A J,Geus J W .[J].Catalysis Today,1999,47:287. |
| [29] | Roth D.;Primet M.;Tena E.;Gelin P. .Catalytic behaviour of Cl-free and Cl-containing Pd/Al2O3 catalysts in the total oxidation of methane at low temperature[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2000(1):37-45. |
| [30] | Gélin P;Urfels L;Primet M;Tena E .[J].Catalysis Today,2003,83:45. |
| [31] | Mowery D L;Graboski M S;Ohno T R;McCormick R L .[J].Applied Catalysis B:Environmental,1999,21:157. |
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%