为了改善纤维毡对催化剂的粘结强度,降低催化剂中活性组元的用量,采用电化学脱合金法在FeCrAl纤维毡表面制备了连续均匀的纳米多孔结构膜.利用EG&G PAR M273恒电位仪测量动态电势极化曲线和阳极极化曲线,研究了纳米多孔结构的形成机理.结果表明:纳米多孔结构膜形成的临界电压为1.2 V.在此条件下,Al元素和Cr元素被选择溶解,Fe被氧化成纳米结构膜.
参考文献
| [1] | Olaf Andersen;Cris Kostmann;Günter Stephani.[A].Singapore:Nanyang Technological University,2002:1. |
| [2] | De Van J H.[A].Fontana Wisconsin:ASM,1991:23. |
| [3] | Yuranov I;Kiwi-Minsker L;Renken A .[J].Applied Catalysis B:Environmental,2003,43:218. |
| [4] | Guido Saracco;Isotta Cerri;Vito Specchia et al.[J].Chemical Engineering Science,1999,54:3599. |
| [5] | Tadrist L.;Miscevic M.;Rahli O.;Topin F. .About the use of fibrous materials in compact heat exchangers[J].Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics,2004(2/3):193-199. |
| [6] | Sgard F C;Olny X;Atall N et al.[J].Applied Acoustics,2005,66:625. |
| [7] | Yi Ding;Young-Ju Kim;Jonah Erlebacher .Nanoporous Gold Leaf: Ancient Technology/Advanced Material[J].Advanced Materials,2004(21):1897-1900. |
| [8] | Jayaraj J;Park B J;Kim D H et al.[J].Scripta Materialia,2006,55:1063. |
| [9] | Hai-Bo Lu;Ying Li;Fu-Hui Wang .Synthesis of porous copper from nanocrystalline two-phase Cu-Zr film by dealloying[J].Scripta materialia,2007(2):165-168. |
| [10] | Li Sun;Chia-Ling Chien;Peter C.Searson .Fabrication of Nanoporous Nickel by Electrochemical Dealloying[J].Chemistry of Materials,2004(16):3125-3129. |
| [11] | Wenyan Zhang;Yaning Li;Guangzhong Li.[A].Montreal:DES Technology Publication,2007:479. |
| [12] | Fathy Bayoumi M;Badr Ateya G.[J].Electrochemistry Comm-unications,2006(08):38. |
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%