以Cu2(NO3)(OH) 3/AC(活性碳)为催化剂前驱体,在惰性气氛中于不同温度热处理分别制得无氯的CuO/AC,Cu2O/AC和Cu0/AC催化剂,并用于甲醇直接气相氧化羰基化合成碳酸二甲酯(DMC)反应.结果表明,200℃处理制得的催化剂中,Cu物种以CuO为主.随着处理温度的升高,催化剂中CuO含量逐渐降低,而Cu2O含量增加;400℃制备的催化剂中,Cu物种仅以Cu2O形式存在;而450℃以上处理时则以Cu0形式存在.随着热处理温度的提高,相应催化剂活性逐渐增加,表明CuO,Cu2O和Cu0均具有催化活性,其活性大小的顺序为CuO
参考文献
[1] | Delledonne D;Rivetti F;Romano U .[J].Applied Catalysis A:General,2001,221:241. |
[2] | Tomishige K;Sakaihori T;Sakai S I;Fujimoto K .[J].Applied Catalysis A:General,1999,181:95. |
[3] | Jiang R X;Wang S F;Zhao X Q;Wang Y J Zhang Ch F .[J].Applied Catalysis A:General,2003,238:131. |
[4] | Li Zh;Xie K Ch;Siade R C T .[J].Applied Catalysis A:General,2001,209:107. |
[5] | Drake I J;Fujdala K L;Bell A T;Tilley T D .[J].Journal of Catalysis,2005,230:14. |
[6] | King S T .[J].Catalysis Today,1997,33:173. |
[7] | 李忠,文春梅,王瑞玉,郑华艳,谢克昌.醋酸铜热解制备无氯Cu2O/AC催化剂及其催化氧化羰基化[J].高等学校化学学报,2009(10):2024-2031. |
[8] | 李忠,文春梅,郑华艳,谢克昌.载体表面性质对Cu_2 O/AC催化剂结构和活性的影响[J].高等学校化学学报,2010(01):145-152. |
[9] | Richter M;Fait MJG;Eckelt R;Schreier E;Schneider M;Pohl MM;Fricke R .Oxidative gas phase carbonylation of methanol to dimethyl carbonate over chloride-free Cu-impregnated zeolite Y catalysts at elevated pressure[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2007(3/4):269-281. |
[10] | Richter M;Fait M J G;Eckelt R;Schneider M Radnik J Heidemann D Fricke R .[J].Journal of Catalysis,2007,245:11. |
[11] | Niu H X;Yang Q;Tang K B .[J].Materials Science and Engineering B,2006,135:172. |
[12] | Biswick T;Jones W;Pacula A;Serwicka E .[J].Journal of Solid State Chemistry,2006,179:49. |
[13] | Kong L H;Chen X H;Yang G B;Yu L G Zhang P Y .[J].Applied Surface Science,2008,254:7255. |
[14] | 冯绪胜;刘洪国;郝京城.胶体化学[M].北京:化学工业出版社,2005:49. |
[15] | Cao M H;Hu C W;Wang Y H;Guo Y H,Guo C X,Wang E B.[J].Chemical Communications,2003:1884. |
[16] | Shin S.;Yoon SH.;Mochida I.;Jang J. .A STUDY ON THE EFFECT OF HEAT TREATMENT ON FUNCTIONAL GROUPS OF PITCH BASED ACTIVATED CARBON FIBER USING FTIR[J].Carbon: An International Journal Sponsored by the American Carbon Society,1997(12):1739-1743. |
[17] | Barbooti M M .[J].Solar Energy Materials,1984,I0:35. |
[18] | 李忠,黄海彬,谢克昌.Cu(I)/SO2-4/ZnO和Cu(I)/S2O2-8/ZnO催化剂的制备与表征[J].高等学校化学学报,2008(08):1609-1615. |
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%