Graphene Oxide Fuel Cell

作者：Hikaru Tateishi, Kazuto Hatakeyama, Chikako Ogata, Kengo Gezuhara, Jun Kuroda, Asami Funatsu, Michio Koinuma, Takaaki Taniguchi, Shinya Hayami, Yasumichi Matsumoto · 发表于：Journal of The Electrochemical Society · 年份：2013 · DOI：10.1149/2.008311jes · 被引用次数：103 · 研究领域：Fuel Cells and Related Materials、Electrocatalysts for Energy Conversion、Advanced battery technologies research

Graphene oxide (GO) exhibits relatively high proton conduction even at low relative humidity ( RH ) and temperatures. Thus, multi-layered GO film (GO paper) is a promising electrolyte in various cells and batteries. We report the in-plane and through-plane proton conductivities of GO paper at low RH and room temperature. The conductivities were 10 −5 -10 −4 S/cm at RH of 10–20%. We examined the performance of a graphene oxide fuel cell (GOFC) with GO paper as the electrolyte at low RH (<20%) and room temperature. We demonstrated that a simple membrane electrode assembly (MEA) based on Pt/GO/Pt system functioned as a H 2 /O 2 fuel cell. The GOFC with Pt/C electrodes afforded better fuel cell performance than a MEA composed of Pt/C electrodes and Nafion electrolyte. GO paper composed of nano-sized GO (nanoGO) flakes enhanced the performance of the GOFC, particularly the current density. Furthermore, a composite of Fe phthalocyanine (PcFe) /reduced GO (rGO)/TiO 2 could act as the Pt-free oxygen electrode in GOFC, although the fuel cell performance should be improved for practical applications. Our study suggests that a low cost GOFC without a Nafion electrolyte and noble metal electrodes could be fabricated in the near future.