Enhanced Power Density of Alcohol Biofuel Cell by Polymer-assisted Crosslinks of 3D Graphene on Carbon Paper as the Bioanode,Electroanalysis

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Enhanced Power Density of Alcohol Biofuel Cell by Polymer-assisted Crosslinks of 3D Graphene on Carbon Paper as the Bioanode
Electroanalysis ( IF 2.7 ) Pub Date : 2021-08-18 , DOI: 10.1002/elan.202100369
Yuhe Shi ₁ , Lin Li ₂ , Ling Zhang ₃

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Herein, we successfully construct the 3D biocompatible graphene through crosslinking 2D graphene nanosheet onto carbon fiber paper with poly(diallyldimethylammonium chloride) (PDDA) as anode of the alcohol biofuel cell. Compared with the bioanode without 3D graphene, the current density and output power of PDDA-graphene-ADH bioanode is increased by 23 % and 41 % at a high concentration of ethanol at pH 8.9, suggesting the stabilization role of graphene in enzyme loading. The study provides us a deep analysis on structures and performances of the bioanode incl. electrochemistry, X-ray photoelectron spectra, and atomic force microscopy images, which is significant to develop the new methods to construct 3D porous electrodes in energy conversion device.

中文翻译：

3D石墨烯在碳纸上作为生物阳极的聚合物辅助交联提高了酒精生物燃料电池的功率密度

在此，我们通过将 2D 石墨烯纳米片交联到碳纤维纸上，以聚二烯丙基二甲基氯化铵 (PDDA) 作为酒精生物燃料电池的阳极，成功地构建了 3D 生物相容性石墨烯。与不含 3D 石墨烯的生物阳极相比，PDDA-石墨烯-ADH 生物阳极在 pH 8.9 的高浓度乙醇下的电流密度和输出功率分别增加了 23% 和 41%，表明石墨烯在酶负载中的稳定作用。该研究为我们提供了对生物阳极的结构和性能的深入分析，包括。电化学、X射线光电子能谱和原子力显微镜图像，这对于开发在能量转换装置中构建3D多孔电极的新方法具有重要意义。

更新日期：2021-08-18

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