采用对水和空气稳定的氯化胆碱∶乙二醇=1∶2(摩尔比)的离子液体为电解质,在316不锈钢基体上进行电镀铌,考察模拟质子交换膜燃料电池(PEMFC)环境中镀铌不锈钢双极板的电化学性能.结果表明,以氯化胆碱类离子液体为电解质在316不锈钢表面可获得平整均匀的颗粒状铌镀层.在模拟质子交换膜燃料电池环境中,镀铌316不锈钢的腐蚀电位得到提高,维钝电流密度减小,阳极极化性能得到改善;孔蚀电位正移,反应电阻增大,耐蚀性能提高.能谱和X射线衍射分析结果表明,镀铌后316不锈钢表面生成化学惰性良好的NbO和Nb2O5,形成耐蚀“屏障”,改善了不锈钢表面膜的钝化能力,提高了不锈钢的电化学稳定性能.
参考文献
| [1] | H. Tawfik;Y. Hung;D. Mahajan .Metal bipolar plates for PEM fuel cell-A review[J].Journal of Power Sources,2007(2):755-767. |
| [2] | I.E. Paulauskas;M.P. Brady;H.M. Meyer III;R.A. Buchanan;L.R. Walker .Corrosion behavior of CrN, Cr_2N and π phase surfaces on nitrided Ni-50Cr for proton exchange membrane fuel cell bipolar plates[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2006(10):3157-3171. |
| [3] | M. P. Brady;K. Weisbrod;I. Paulauskas;R. A. Buchanan;K. L. More;H. Wang;F. Garzon;F. Garzon;L. R. Walker .Preferential thermal nitridation to form pin-hole free Cr-nitrides to protect proton exchange membrane fuel cell metallic bipolar plates[J].Scripta materialia,2004(7):1017-1022. |
| [4] | Sung-Tae Hong;K. Scott Weil .Niobium-clad 304L stainless steel PEMFC bipolar plate material Tensile and bend properties[J].Journal of Power Sources,2007(2):408-417. |
| [5] | Annealing induced interfacial layers in niobium-clad stainless steel developed as a bipolar plate material for polymer electrolyte membrane fuel cell stacks[J].Journal of Power Sources,2010(9):2592. |
| [6] | Andrew P.Abbott;David Boothby;Glen Capper;David L.Davies;Raymond K.Rasheed .Deep Eutectic Solvents Formed between Choline Chloride and Carboxylic Acids:Versatile Alternatives to Ionic Liquids[J].Journal of the American Chemical Society,2004(29):9142-9147. |
| [7] | Abbott AP;Capper G;McKenzie KJ;Ryder KS .Electrodeposition of zinc-tin alloys from deep eutectic solvents based on choline chloride[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,2007(2):288-294. |
| [8] | 梅天庆,鱼光楠,贺利敏,裴玉汝.离子液体A1C13-[bmim]Cl中电沉积铝的研究[J].中国腐蚀与防护学报,2011(04):319-322,328. |
| [9] | 杨海燕,郭兴伍,吴国华,丁文江.AZ91D镁合金在氯化胆碱-尿素离子液体中电镀Zn的研究[J].中国腐蚀与防护学报,2010(02):155-160. |
| [10] | 杨培霞,安茂忠,苏彩娜,王福平.添加剂对离子液体中电沉积金属钴的影响[J].无机化学学报,2009(01):112-116. |
| [11] | 高丽霞,王丽娜,齐涛,余江.从2AlCl3/Et3NHCl离子液体中电沉积制备Ni和Ni-Al合金[J].物理化学学报,2012(01):111-120. |
| [12] | Corrosion protection of type 304 stainless steel bipolar plates of proton-exchange membrane fuel cells by doped polyaniline coating[J].Journal of Power Sources,2010(7):1914. |
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%