Herein, we report electrochemically durable oxygen reduction reaction catalysts for proton exchange membrane fuel cells under conditions of hydrogen starvation. Insufficient hydrogen supply during transient conditions leads to a cell reversal state in a proton exchange membrane fuel cell, and oxidation of the carbon support severely decreases the cell performance. The use of carbon nanotubes as a support for the oxygen reduction reaction catalyst is found to suppress carbon oxidation due to the high crystallinity, low defect density, and high aspect ratio, which results in a consistent cell voltage, electrochemical surface area, and electrical resistance, even after 100 rounds of cell reversal. This study demonstrates the excellent durability of proton exchange membrane fuel cells with a Pt/Carbon nanotube electrode, as confirmed by X-ray diffraction, transmission electron microscopy, Raman spectroscopy and cyclic voltammetry analysis.

在此，我们报道了在氢缺乏的条件下用于质子交换膜燃料电池的电化学耐用的氧还原反应催化剂。在瞬态条件下氢供应不足导致质子交换膜燃料电池中的电池反转状态，并且碳载体的氧化严重降低了电池性能。由于高结晶度，低缺陷密度和高纵横比，发现使用碳纳米管作为氧还原反应催化剂的载体可抑制碳氧化，从而产生一致的电池电压，电化学表面积和电阻，甚至在100轮细胞反转后也是如此。这项研究证明了具有Pt /碳纳米管电极的质子交换膜燃料电池具有出色的耐久性，