采用W/O反相微乳法制备了Ni/CeO2纳米复合催化剂,对比了加热和真空冷冻两种不同干燥方法处理的催化剂以及传统浸渍法制备的催化剂上乙醇水蒸气重整反应性能.由X射线衍射(XRD)、透射电子显微镜(TEM)、程序升温还原(TPR)和程序升温脱附(TPD)等技术对催化剂进行了表征.实验结果表明,采用反相微乳法制备的Ni/CeO2纳米复合催化剂显示了良好的催化活性和选择性；其中采用真空冷冻干燥处理的催化剂表现出最好的活性,H2产率最高达到42％,CO选择性低至0.35％,并且具有较好的稳定性和抗积炭能力,优于传统浸渍法制备的催化剂.
参考文献
| [1] | Jens R;Rostrup N .Conversion of hydrocarbons and alcohols for fuel cells[J].Physical Chemistry Chemical Physics,2001,3:283. |
| [2] | R.R.Davda;J.W.Shabaker;G.W.Huber;R.D.Cortright;J.A.Dumesic .Aqueous-phase reforming of ethylene glycol on silica-supported metal catalysts[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2003(1):13-26. |
| [3] | 张利峰 .乙醇水蒸气重整制氢改性镍基催化剂研究[D].天津大学,2007. |
| [4] | Maggio G;Freni S;Cavallaro S .Light alcohols/methane fuelled molten carbonate fuel cells:a comparative study[J].Journal of Power Sources,1998,74(01):17. |
| [5] | Liguras D K;Kondarides D I;Verykios X E .Production of hydrogen for fuel cells by steam reforming of ethanol over supported noble metal catalysts[J].Applied Catalysis B:Environmental,2003,43(01):345. |
| [6] | Freni S;Cavallaro S;Mondello N;Spadaro L Frusteri F .Steam reforming of ethanol on Ni/MgO catalysts:H2 production for MCFC[J].Journal of Power Sources,2002,108(01):53. |
| [7] | Llorca J;Homs N;de la Piscina PR .In situ DRIFT-mass spectrometry study of the ethanol steam-reforming reaction over carbonyl-derived Co/ZnO catalysts[J].Journal of Catalysis,2004(2):556-560. |
| [8] | Marino F;Baronetti G;Jobbagy M;Laborde M .Cu-Ni-K/γ-Al2O3 supported catalysts for ethanol steam reforming:Formation of hydrotalcite-type compounds as a result of metal-support interaction[J].Applied Catalysis A:General,2003,238(01):41. |
| [9] | Akande AJ;Idem RO;Dalai AK .Synthesis, characterization and performance evaluation of Ni/Al2O3 catalysts for reforming of crude ethanol for hydrogen production[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2005(2):159-175. |
| [10] | Barroso MN;Gomez MF;Arrua LA;Abello MC .Hydrogen production by ethanol reforming over NiZnAl catalysts[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2006(1):116-123. |
| [11] | Eastoe J;Hollamby MJ;Hudson L .Recent advances in nanoparticle synthesis with reversed micelles[J].Advances in colloid and interface science,2006(0):5-15. |
| [12] | 肖益鸿,罗海燕,郑起,詹瑛瑛,魏可镁.微乳法制备Au/Al2 O3 催化剂及其催化氧化CO性能的研究[J].合成化学,2005(04):331-335,339. |
| [13] | Johan Agrell .Production of hydrogen by partial oxidation of methanol over ZnO-supported palladium catalysts prepared by microemulsion technique[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2003(2):233-245. |
| [14] | Bumajdad A;Zaki MI;Eastoe J;Pasupulety L .Microemulsion-based synthesis of CeO2 powders with high surface area and high-temperature stabilities[J].Langmuir: The ACS Journal of Surfaces and Colloids,2004(25):11223-11233. |
| [15] | 白守礼,石冰洁,王良士,崔梅生,李殿卿,罗瑞贤,陈霭璠.逆微乳液体系研制镧系六铝酸盐甲烷燃烧催化剂[J].中国稀土学报,2011(02):163-169. |
| [16] | 胡雪娟 .ZrO<,2>及ZrO<,2>基复合载体负载镍催化苯加氢制环己烷的研究[D].南昌大学,2007. |
| [17] | Ethanol steam reforming over Ni-based spinel oxide[J].International journal of hydrogen energy,2010(4):p.1575. |
| [18] | 蔡炳新,詹拥共,夏文龙,谢顺吉,蔡炽,刘玉章,曾若生.微乳-凝胶法制备氧化钼/二氧化硅纳米复合氧化物及形貌控制[J].硅酸盐学报,2007(03):342-347. |
| [19] | Zarur AJ.;Ying JY. .Reverse microemulsion synthesis of nanostructured complex oxides forcatalytic combustion[J].Nature,2000(6765):65-67. |
| [20] | Yao H C;Yu Yao Y F .Ceria in automotive exhaust catalysts:1. Oxygen storage[J].Journal of Catalysis,1984,86(02):254. |
| [21] | Li Yue .Low-temperature water-gas shift reaction over Cu- and Ni-loaded cerium oxide catalysts[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2000(3):179-191. |
| [22] | 石秋杰,刘承伟,谌伟庆.Ni/MgO-CeO2催化低温乙醇水蒸气重整制氢[J].中国稀土学报,2009(03):319-326. |
| [23] | Gary Jacobs;Uschi M.Graham;Emilie Chenu;Patricia M.Patterson;Alan Dozier;Burtron H.Davis .Low-temperature water-gas shift;impact of Pt promoter loading on the partial reduction of ceria and consequences for catalyst design[J].Journal of Catalysis,2005(2):499-512. |
| [24] | 杨宇,吴绯,马建新.载体对镍催化剂催化乙醇水蒸气重整制氢反应性能的影响[J].催化学报,2005(02):131-137. |
| [25] | Sun G B;Hidajat K;Wu X S;Kawi S .A crucial role of surface oxygen mobility on nanocrystalline Y2O3 support for oxidative steam reforming of ethanol to hydrogen over Ni/Y2O3 catalysts[J].Applied Catalysis B:Environmental,2008,81(3-4):303. |
| [26] | Diagne C;Idriss H;Kiennemann A .Hydrogen production by ethanol reforming over Rh/CeO2-ZrO2 catalysts[J].Catalysis Communications,2002,3(12):565. |
| [27] | Jie Sun;Xin-Ping Qiu;Feng Wu;Wen-Tao Zhu .H_2 from steam reforming of ethanol at low temperature over Ni/Y_2O_3, Ni/La_2O_3 and Ni/Al_2O_3 catalysts for fuel-cell application[J].International journal of hydrogen energy,2005(4):437-445. |
| [28] | Xu B Q;Wei J M;Yu Y T;Li Y Li J L Zhu Q M .Size limit of support particles in an oxide-supported metal catalyst:nanocomposite Ni/ZrO2 for utilization of natural gas[J].The Journal of Physical Chemistry(B)Materials Surfaces Interfaces & Physical,2003,107(22):5203. |
| [29] | Xu B Q;Wei J M;Yu Y T;Li J L Zhu Q M .Carbon dioxide reforming of methane over nanocomposite Ni/ZrO2 catalysts[J].Topics in Catalysis,2003,22(01):77. |
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