Investigation of direct methanol fuel cell performance of sulfonated polyimide membrane
Investigation of direct methanol fuel cell performance of sulfonated polyimide membrane
复制标题
DOI：
10.1016/j.electacta.2005.12.029
复制
发表时间：
2006-06
影响因子：
6.6
通讯作者：
Jung-Min Song;K. Miyatake;H. Uchida;Masahiro Watanabe
中科院分区：
文献类型：
--
作者：
Jung-Min Song;K. Miyatake;H. Uchida;Masahiro Watanabe
磺化聚酰亚胺（SPI）膜作为直接甲醇燃料电池（DMFC）的电解质膜进行了评价。膜电极组件（MEA）通过热压分别用PtRu/CB（分散在炭黑上的PtRu）和与Nafion®离聚物结合的Pt/CB催化的膜、阳极和阴极来制备。将基于SPI的电池的性能与Nafion®112的性能在各种操作条件下进行比较，例如电池温度（Tcell）、阴极相对湿度（RH）和甲醇浓度（CMeOH）。在基于SPI的电池处的甲醇渗透是Nafion®112的一半，导致电池效率提高。当DMFC在更高的Tcell或更高的CMeOH下运行时，使用SPI的优势变得与传统的Nafion®112非常不同。
Sulfonated polyimide (SPI) membranes have been evaluated as electrolyte membranes in direct methanol fuel cells (DMFCs). The membrane–electrode assembly (MEA) was made by hot-pressing the membrane, an anode and a cathode, catalyzed with PtRu/CB (PtRu dispersed on carbon black) and Pt/CB bound with Nafion®ionomer, respectively. The performance of the cell based on SPI was compared with that of Nafion®112 in various operation conditions such as cell temperature (Tcell), cathode relative humidity (RH), and methanol concentration (CMeOH). The methanol crossover at the cell based on SPI was a half of Nafion®112, resulting in the improved cell efficiency. Advantage of the use of SPI became much distinctive from the conventional Nafion®112 when the DMFC was operated at a higher Tcellor a higher CMeOH.