Polymer of intrinsic microporosity (PIM-1) enhances hydrogen peroxide production at Gii-Sens graphene foam electrodes
Polymer of intrinsic microporosity (PIM-1) enhances hydrogen peroxide production at Gii-Sens graphene foam electrodes
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DOI：
10.1016/j.elecom.2022.107394
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发表时间：
2022-10-01
影响因子：
5.4
通讯作者：
Marken, Frank
中科院分区：
文献类型：
--
作者：
Beluomini, Maisa Azevedo;Wang, Yu;Marken, Frank
研究表明，浸入 pH 7 的磷酸盐缓冲溶液中的 3D 石墨烯泡沫电极 (Gii-Sens) 在存在固有微孔性纳米颗粒聚合物 (PIM-1) 的情况下，能够以明显更快的速度产生过氧化氢。该效应被证明至少部分与三相条件下氧气与 PIM-1 的结合有关。电极溶液界面处氧气的释放使H2O2 的产量增加了四倍。使用石墨烯泡沫盘发生器和铂盘电极收集器进行发生器-收集器实验，以允许原位检测过氧化氢和氧气。
3D-graphene foam electrodes (Gii-Sens) immersed in a phosphate buffer solution of pH 7 are shown to generate hydrogen peroxide at a significantly faster rate in the presence of a nanoparticulate polymer of intrinsic microporosity (PIM-1). The effect is demonstrated to be associated at least in part with oxygen binding into PIM-1 under triphasic conditions. The release of the oxygen at the electrode'solution interface quadruples H2O2 production. Generator-collector experiments are performed with a graphene foam disk generator and a platinum disk electrode collector to allow in situ detection of hydrogen peroxide and oxygen.