Self-assembled three-dimensional graphene (STG), which is constructed via advanced boiling method (ABM) has advantages in terms of low-cost, facile procedures, and needless to use any backbone structure. Although the previously developed STG is considered as a promising material and structure to be used as a flow distributor in polymer electrolyte membrane fuel cell (PEMFC), the STG flow distributor should be advanced in the aspect of conductivity to achieve higher performance. Herein, the conductivity of STG is improved via the thermal annealing process and the advanced STG is applied in PEMFC as a flow distributor to enhance the performance of the single-cell system. Single cell constructed with the thermally annealed STG exhibits a lowered charge and ohmic resistance, which leads to the performance enhancement. These results imply that direct coating of the advanced STG can be one of the alternatives of the complex and high-cost process of graphene coating to the porous metal foam through chemical vapor deposition (CVD).

通过先进沸腾法（ABM）构建的自组装三维石墨烯（STG）具有成本低、程序简便、无需使用任何骨架结构等优点。尽管先前开发的 STG 被认为是一种很有前途的材料和结构，可用作聚合物电解质膜燃料电池 (PEMFC) 中的流量分配器，但 STG 流量分配器应在导电性方面进行改进以实现更高的性能。在这里，STG 的导电性通过热退火工艺得到改善，并且先进的 STG 被应用于 PEMFC 作为流量分配器，以提高单电池系统的性能。由热退火 STG 构成的单电池表现出较低的电荷和欧姆电阻，从而提高了性能。