多壁碳纳米管的表面官能团化对其在催化领域的应用有重要意义.在硫酸和硝酸混合液中超声处理多擘碳纳米管,在使其纯化的同时,纳米管的长度变短,端口被打开,并在碳纳米管表面和端口处修饰上大量的含氧官能团,有利于催化剂活性组分在碳纳米管表面均匀沉积.利用透射电镜.红外光谱和拉曼光谱表征了碳纳米管及其催化剂的表观织构.通过交流阻抗谱对催化剂进行电化学性能测试,并发现经过超声处理的碳纳米管负载的PtRu双金属催化剂对甲醇有较好的电催化活性.
参考文献
| [1] | IIJMA S .Helical microtubules of graphitic carbon[J].Nature,1991,354:56-58. |
| [2] | Wenzhen Li;Changhai Lian;Jieshan Qiu;Weijinag Zhou;Hongmei Han;Zhaobin Wei;Gongquan Sun;Qin Xin .Carbon nanotubes as support for cathode catalyst of a direct methanol fuel cell[J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(5):791-794. |
| [3] | LIU Z;LIN X;LEE J Y et al.Preparation and characterization of platinum-based electrocatalysts on muhiwalled carbon nano-tubes for proton exchange membrane fuel cells[J].Langmuir,2002,18:4054-4060. |
| [4] | AGO H;KUGLER T;CACIALLI F et al.Work functions and surface functional groups of multiwall carbon nanotubes[J].Journal of Physical Chemistry B,1999,103:8116-8118. |
| [5] | 于荣清;程大典;詹梦熊.液相化学腐蚀法用于碳纳米管的纯化及顶端开口的研究[J].化学通报(印刷版),1995(04):25-26. |
| [6] | Andreas Hrisch .Functionalization of single-walled carbon nanotubes[J].Angewandte Chemie International Edition,2002(11):1853-1859. |
| [7] | K.L. LU;R.M. LAGO;Y.K. CHEN;M.L.H. GREEN;P.J.F. HARRIS;S.C. TSANG .Mechanical Damage of Carbon Nanotubes by Ultrasound[J].Carbon: An International Journal Sponsored by the American Carbon Society,1996(6):814-816. |
| [8] | Karla L. Strong;David P. Anderson;Khalid Lafdi .Purification process for single-wall carbon nanotubes[J].Carbon: An International Journal Sponsored by the American Carbon Society,2003(8):1477-1488. |
| [9] | Kobayashi Y;Takagi D;Ueno Y;Homma Y .Characterization of carbon nanotubes suspended between nanostructures using micro-Raman spectroscopy[J].Physica, E. Low-dimensional systems & nanostructures,2004(1/2):26-31. |
| [10] | BACSA W S;UGARTE D;CHATELAIN A et al.High-reso-lution electron-microscopy and inelastic light-scattering of puri-fied muhishelled carbon nanotubes[J].Physical Review B:Condensed Matter,1994,50(20):15473-15476. |
| [11] | HIURA H;EBBESEN T W;TANIGAK K et al.Raman stud-ies of carbon nanotubes[J].Chemical Physics Letters,1993,202(06):509-512. |
| [12] | 陈杰;宋启泽.波谱分析[M].北京:北京理工大学出版社,1996 |
| [13] | LIU J;RINZLER A G;DAI H J H et al.Fullerene pipes[J].Science,1998,280(5367):1253-1256. |
| [14] | 武刚,李莉,徐柏庆.PtRu/C催化剂上甲醇电氧化的电化学阻抗谱[J].高等学校化学学报,2005(04):715-718. |
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%