Development of Catalyst Layer with Self-water Management for PEFC
Development of Catalyst Layer with Self-water Management for PEFC
复制标题
PEFC自水管理催化剂层的开发
DOI：
10.1149/06501.0129ecst
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Yamauchi
中科院分区：
文献类型：
--
作者：
R. Arai;K. Sugiura;M. Yamauchi
尽管PEFC开始通过ENEFARM和FCV等商业化，但其仍然存在诸如高成本和低能量效率的问题。用于润湿膜的加湿器对于PEFC是必需的，并且该装置的价格和能量是这些问题的因素之一。我们的目标是通过改进MEA、分离器和内部歧管来管理PEFC产生的水，从而使加湿器变得不必要。本文针对PEFC的低能耗运行，采用具有吸水性能的碳粉（NBH）制成自水管理催化剂层。结果，具有NBH-MEA的电池获得了与标准电池相同的电池性能，即使它在低的温度下操作，并且NBH-MEA的Pt催化剂的量比标准MEA减少得更多。
PEFC has still issues such as a high cost and a low energy efficiency though it begins to be commercialized by ENEFARM and FCV, etc. The humidifier for the wet of the membrane is necessary for PEFC, and the price and the energy of this device are one of the factors of these issues. We are aiming to make the humidifier unnecessary by managing the water generated with PEFC by improving MEA, a separator, and an internal manifold. This paper aims at the low humidifying operation of PEFC using the self-water management catalyst layer made of carbon powder (NBH) with a water absorption performance. As a result, the cell with the NBH-MEA obtained the same cell performance as the standard cell even if it operates at low humidifying and the amount of Pt catalyst of NBH-MEA was decreased more than the standard MEA.