分别制备了金属镍粉、兰尼镍、Ni-B非晶态合金及镧掺杂的Ni-B非晶态合金(Ni-B-La)催化剂,研究了催化剂的氢吸附和脱附性质以及对2-乙基蒽醌加氢反应的催化性能.结果表明,金属镍粉、兰尼镍和Ni-B催化剂表面均具有两种氢吸附位: 弱吸附位和强吸附位.Ni-B-La催化剂表面只有氢的强吸附位,其强吸附氢量与兰尼镍相当.推测只有氢的强吸附位是2-乙基蒽醌加氢反应的活性中心,并且Ni-B-La催化剂上的强吸附氢较兰尼镍上的更活泼,因而Ni-B-La非晶态合金催化剂对加氢反应的催化活性高于兰尼镍.
参考文献
| [1] | Elvers B;Hawkins S;Ravenscroft M;ed .Ullmann's Encyclopedia of Industrial Chemistry. 5th Ed[J].Weinheim:Wiley-VCH,1989,A13:447. |
| [2] | Fasman A B;Mikhailenko S D;Maksimova N A .Kitaigorodskaya V Ya[J].Applied Catalysis,1983,6(01):1. |
| [3] | Albers R E;Nystrm M;Siverstrm M;Sellin A,Dellve A-C,Andersson U,Herrmann W,Berglin Th .[J].Catalysis Today,2001(69):247. |
| [4] | Chen Y .[J].Catalysis Today,1998(44):3. |
| [5] | Li H;Li H X;Deng J F .[J].Catalysis Today,2002,74(1-2):53. |
| [6] | Deng J-F;Li H X;Wang W J .[J].Catalysis Today,1999,51(01):113. |
| [7] | HouYJ;Wang Y Q;He F;Han S, Mi Zh T, Wu W, Min E Z .[J].Materials Letters,2004(58):1267. |
| [8] | Zhang R B;Li F Y;Zhang N;Shi Q J .[J].Applied Catalysis A:General,2003,239:17. |
| [9] | Berglin T;Schn N-H .[J].Industrial & Engineering Chemistry Process Design and Development,1981,20(04):615. |
| [10] | 米万良,王亚权,侯永江,李静,崔能伟,米镇涛.蒽醌法生产过氧化氢用新型氢化催化剂的制备[J].催化学报,2003(02):129-131. |
| [11] | Molnar A;Smith G V;Bartok M .[J].Advances in Catalysis,1989,36:329. |
| [12] | Mikhailenko S D;Fasman A B;Maksimova N A;Leongard E V Shpiro E S Antoshin G V Zelinsky N D .[J].Applied Catalysis,1984,12(02):141. |
| [13] | Martin-Luengo M A;Sermon P A;WANG Y .[J].Journal of Catalysis,1992,135(01):263. |
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%