A mesoporous TiN structure with high surface area and excellent electrical conductivity was fabricated for application as a catalyst support in proton exchange membrane fuel cell (PEMFC). Pt nanoparticles were then uniformly deposited on the TiN porous support by wet chemical reduction. The performances of PEMFC using Pt@TiN electrodes were evaluated by a single cell test station. The membrane electrode assembly using Pt@TiN for both anode and cathode exhibited 70%–120% higher specific power densities than that of commercial E-Tek due to higher electrical conductivity and porosity of the catalyst support and higher Pt utilization efficiency.

中文翻译：

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用于质子交换膜燃料电池的介孔TiN催化剂载体

制备了具有高表面积和优异导电性的介孔TiN结构，以用作质子交换膜燃料电池（PEMFC）的催化剂载体。然后通过湿化学还原将Pt纳米颗粒均匀沉积在TiN多孔载体上。通过单电池测试站评估了使用Pt @ TiN电极的PEMFC的性能。阳极和阴极均使用Pt @ TiN的膜电极组件，其比功率密度比市售E-Tek高70％–120％，这是因为催化剂载体的电导率和孔隙率更高，以及Pt的利用效率更高。