A high-temperature anion-exchange membrane fuel cell with a critical raw material-free cathode
A high-temperature anion-exchange membrane fuel cell with a critical raw material-free cathode
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DOI：
10.1016/j.ceja.2021.100153
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发表时间：
2021-11-15
影响因子：
--
通讯作者：
Dekel, Dario R.
中科院分区：
文献类型：
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作者：
Douglin, John C.;Singh, Ramesh K.;Dekel, Dario R.
我们提出了第一个高温阴离子交换膜燃料电池（HT-AEMFC，在105 ℃下运行）的基础上的关键原材料（CRM）-免费的阴极催化剂;在相同的温度下，阴离子交换膜（AEM）具有高的非原位氢氧化物电导率值为201 mS cm-1。我们的HT-AEMFC含有高活性氮掺杂碳（N-doped-C）阴极催化剂，还具有低极化电阻，高催化活性和稳定性，在初始10小时寿命测试后保持81%的催化剂层电容，峰值功率为1.14 W cm-2。这是包含无CRM阴极的AEMFC报告的最高功率密度之一。这项工作显示了HT-AEMFC新领域的潜力，为开发和使用在这些高操作温度下具有高活性的新型无CRM催化剂提供了机会。
We present a first high-temperature anion-exchange membrane fuel cell (HT-AEMFC, operating at 105 degrees C) based on a critical raw material (CRM)-free cathode catalyst; at the same temperature, the anion-exchange membrane (AEM) has a high ex-situ hydroxide conductivity value of 201 mS cm-1. Our HT-AEMFC, containing a highly active nitrogen-doped carbon (N-doped-C) cathode catalyst, also features low polarization resistances, high catalytic activity and stability, with retention of 81% of the catalyst layer capacitance after an initial 10 h longevity test, and delivery of a peak power of 1.14 W cm-2. This is one of the highest power densities reported for an AEMFC containing a CRM-free cathode. This work shows the potential of the new field of HT-AEMFCs, opening opportunities for developing and using novel CRM-free catalysts that are highly active at these high operating temperatures.