采用两步还原法制备了Pt修饰的Ni/C催化剂(Ni@Pt/C),并应用X射线衍射和透射电子显微镜对催化剂进行了表征.结果表明,载体上催化剂粒子呈两相复合结构,具有较好的分散性,平均粒径为4.4 nm.电化学测试表明,Ni@Pt/C催化氧化乙醇的活性电流高达0.37A/mg,是商业Pt/C催化剂的2.33倍,PtNi/C合金催化剂的1.78倍,显示出良好的催化性能.
参考文献
| [1] | Genorio B;Strmcnik D;Subbaraman R;Tripkovic D Karapetrov G Stamenkovic V R Pejovnik S Markovi(c) N M .[J].Nature Materials,2010,9:998. |
| [2] | 李静海;胡英;袁权;何鸣元.展望21世纪的化学工程[M].北京:化学工业出版社,2004:97. |
| [3] | 孟广耀.化学气相淀积与无机新材料[M].北京:科学出版社,1984:153. |
| [4] | Gong, K.;Su, D.;Adzic, R.R. .Platinum-monolayer shell on AuNi_(0.5)Fe nanoparticle core electrocatalyst with high activity and stability for the oxygen reduction reaction[J].Journal of the American Chemical Society,2010(41):14364-14366. |
| [5] | Zhang J L;Vukmirovic M B;Sasaki K;Nilekar A U Mavrikakis M Adzic R R .[J].Journal of the American Chemical Society,2005,127:12480. |
| [6] | Wang D L;Xin H L;Yu Y C;Wang H S Rus E Muller D A Abruna H D .[J].Journal of the American Chemical Society,2010,132:17664. |
| [7] | Wang R F;Li H;Ji S;Wang H Lei Z Q .[J].Electrochimica Acta,2010,55:1519. |
| [8] | Wang R F;Wang H;Wei B X;Wang W Lei Z Q .[J].International Journal of Hydrogen Energy,2010,35:10081. |
| [9] | Chen S Z;Ye F;Lin W M .[J].Journal of Natural Gas Chemistry,2009,18:199. |
| [10] | Spinacé E V;Linardi M;Neto A O .[J].Electrochemistry Communications,2005,7:365. |
| [11] | Ribadeneira E;Hoyos B H .[J].Journal of Power Sources,2008,180:238. |
| [12] | Wang Zh B;Yin G P;Zhang J;Sun Y Ch Shi P F .[J].Journal of Power Sources,2006,160:37. |
| [13] | Bonesi A R;Moreno M S;Triaca W E;Castro Luna A M .[J].International Journal of Hydrogen Energy,2010,35:5999. |
| [14] | 孙盾,何建平,周建华,王涛,狄志勇,丁晓春.电化学置换法制备高Pt利用率的类核壳型Ni-Pt电催化剂[J].物理化学学报,2010(05):1219-1224. |
| [15] | Zhang, XB;Yan, JM;Han, S;Shioyama, H;Xu, Q .Magnetically Recyclable Fe@Pt Core-Shell Nanoparticles and Their Use as Electrocatalysts for Ammonia Borane Oxidation: The Role of Crystallinity of the Core[J].Journal of the American Chemical Society,2009(8):2778-2779. |
| [16] | Peng Z M;You H;Yang H .[J].Advanced Functional Materials,2010,20:3734. |
| [17] | Fu X Z;Liang Y;Chen S P;Lin J D Liao D W .[J].Catalyst Communication,2009,10:1893. |
| [18] | 姜鲁华,周振华,周卫江,王素力,汪国雄,孙公权,辛勤.直接乙醇燃料电池PtSn/C电催化剂的合成表征和性能[J].高等学校化学学报,2004(08):1511-1516. |
| [19] | Zhao J;Chen W X;Zheng Y F;Li X .[J].Journal of Power Sources,2006,162:168. |
| [20] | Chen J W;Jiang C P;Lu H;Feng L Yang X Li L Q Wang R L .[J].Journal of Natural Gas Chemistry,2009,18:341. |
| [21] | Zhao Y Ch;Yang X L;Tian J N;Wang F Y Zhan L .[J].Journal of Power Sources,2010,195:4634. |
| [22] | Park K W;Choi J H;Kwon B K;Lee S A Sung Y E Ha H Y Hong S A Kim H Wieckowski A .[J].Journal of Physical Chemistry B,2002,106:1869. |
| [23] | Tripkovi(c) A V;Popovi(c) K D;Lovi(c) J D .[J].Electrochimica Acta,2001,46:3163. |
| [24] | Jiang L;Hsu A;Chu D;Chen R .[J].International Journal of Hydrogen Energy,2010,35:365. |
| [25] | Xu CW;Shen PK;Ji XH;Zeng R;Liu YL .Enhanced activity for ethanol electro oxidation on Pt-MgO/C catalysts[J].Electrochemistry communications,2005(12):1305-1308. |
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%