In Situ Polymer Graphenization Ingrained with Nanoporosity in a Nitrogenous Electrocatalyst Boosting the Performance of Polymer-Electrolyte-Membrane Fuel Cells.

Fu, Xiaogang; Zamani, Pouyan; Choi, Ja-Yeon; Hassan, Fathy M; Jiang, Gaopeng; Higgins, Drew C; Zhang, Yining; Hoque, Md Ariful et al. · Adv Mater · 2017

basic_science · Level V

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Abstract

Rich, porous graphene frameworks decorated with uniformly dispersed active sites are prepared by using polyaniline as a graphene precursor and introducing phenanthroline as a pore-forming agent. The unprecedented fuel-cell performance of this electrocatalyst is linked to the graphene frameworks with vast distribution of pore sizes, which maximizes the active-sites accessibility, facilitates mass-transport properties, and improves the carbon corrosion resistance.