采用浸渍法、粉末涂覆法、沉积沉淀浸渍法、溶胶高温分解法、原位溶液燃烧法和微乳液法制备了CuO-CeO_2/Al_2O_3/FeCrAl整体催化剂,并运用扫描电镜、X射线衍射、程序升温还原、超声波振动和热振荡等手段研究了制备方法对活性组分的负载及其分布、催化剂结构、粘附稳定性和催化CO优先氧化反应性能的影响.结果表明,溶胶高温分解法、原位溶液燃烧法和微乳液法制备的整体催化剂表现出较好的催化CO优先氧化反应性能和较高的粘附稳定性.
The CuO-CeO_2/Al_2O_3/FeCrAl monolithic catalysts were prepared by impregnation, dip-coating, deposition-impregnation, sol-pyrolysis, in situ combustion, and microemulsion methods. The influence of the preparation methods on active component distribution, catalyst structure, adherence, and catalytic properties was investigated by scanning electron microscopy, X-ray diffraction, temperature-programmed reduction, and ultrasonic and thermal vibration tests. The monolithic catalyst samples prepared by sol-pyrolysis, in situ combustion, and microemulsion presented good catalytic performance for CO preferential oxidation and high adherence stability.
参考文献
| [1] | Wang, H.;Zhu, H.;Qin, Z.;Liang, F.;Wang, G.;Wang, J. .Deactivation of a Au/CeO_2-Co_3O_4 catalyst during CO preferential oxidation in H_2-rich stream[J].Journal of Catalysis,2009(2):154-162. |
| [2] | Tu Y B;Luo J Y;Meng M;Wang G He J J .[J].International Journal of hydrogen Energy,2009,34:3743. |
| [3] | Avgouropoulos G;Ioannides T;Matralis H .Influence of the preparation method on the performance of CuO-CeO2 catalysts for the selective oxidation of CO[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2005(1/2):87-93. |
| [4] | Liu Y;Fu Q;Stephanopoulos M F .[J].Catalysis Today,2004,93-95:241. |
| [5] | Avgouropoulos G;Ioannides T;Matralis H K;Batista J Hocevar S .[J].Catalysis Letters,2001,73:33. |
| [6] | Marban G;Fuertes AB .Highly active and selective CuOx/CeO2 catalyst prepared by a single-step citrate method for preferential oxidation of carbon monoxide[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2005(1):43-53. |
| [7] | Watanabe M;Uchida H;Ohkubo K;Igarashi H .[J].Applied Catalysis B:Environmental,2003,46:595. |
| [8] | 李伟,林涛,张秋林,龚茂初,陈耀强.整体式MnOx-CeO2/ZrO2-TiO2催化剂用于NH3低温选择性催化还原NO[J].催化学报,2009(02):104-110. |
| [9] | Srinivas S;Dhingra A;Im H;Gulari E .[J].Applied Catalysis A:General,2004,274:285. |
| [10] | Chen G W;Yuan Q;Li H Q;Li S L .[J].CHEMICAL ENGINEERING JOURNAL,2004,101:101. |
| [11] | 曾尚红;刘源 .[J].Chinese Journal of Catal,2008,29:436. |
| [12] | Suetsuna T;Suenaga S;Fukasawa T .Monolithic Cu-Ni-based catalyst for reforming hydrocarbon fuel sources[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2004(1/2):275-279. |
| [13] | Qi A D;Wang S D;Fu G Z;Ni C J Wu D Y .[J].Applied Catalysis A:General,2005,281:233. |
| [14] | Tronconi E;Groppi G;Boger T;Heibel A .Monolithic catalysts with 'high conductivity' honeycomb supports for gas/solid exothermic reactions: characterization of the heat-transfer properties[J].Chemical Engineering Science,2004(22/23):4941-4949. |
| [15] | Lindstr(o)m B;Agrell J;Pettersson L J .[J].Chemical Engineering Journal,2003,93:91. |
| [16] | Vergunst T;Kapteijn F;Moulijn J A .[J].Applied Catalysis A:General,2001,213:179. |
| [17] | Ouyang X;Besser R S .[J].Journal of Power Sources,2005,141:39. |
| [18] | Wu XD;Weng D;Zhao S;Chen W .Influence of an aluminized intermediate layer on the adhesion of a gamma-Al2O3 washcoat on FeCrAl[J].Surface & Coatings Technology,2005(2/3):434-439. |
| [19] | Valentini M;Groppi G;Cristiani C;Levi M Tronconi E Forzatti P .[J].Catalysis Today,2001,69:307. |
| [20] | Yin FX;Ji SF;Chen BH;Zhou ZL;Liu H;Li CY .Catalytic combustion of methane over Ce1-xLaxO2-x/2/Al2O3/FeCrAl catalysts[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2006(0):164-173. |
| [21] | Sun YX;Guo GS;Tao DL;Wang ZH .Reverse microemulsion-directed synthesis of hydroxyapatite nanoparticles under hydrothermal conditions[J].The journal of physics and chemistry of solids,2007(3):373-377. |
| [22] | Ban I;Drofenik M;Makovec D .The synthesis of iron-nickel alloy nanoparticles using a reverse micelle technique[J].Journal of Magnetism and Magnetic Materials,2006(2):250-256. |
| [23] | Zeng, SH;Liu, Y;Wang, YQ .CuO-CeO2/Al2O3/FeCrAl monolithic catalysts prepared by sol-pyrolysis method for preferential oxidation of carbon monoxide[J].Catalysis Letters,2007(3/4):119-125. |
| [24] | Pask J A .[J].American Ceramic Society Bulletin,1987,66:1587. |
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%