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A microfluidic galvanic cell on a single layer of paper

机译:单层纸上的微流体原电池

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Paper microfluidics is used to produce single layer galvanic and hybrid cells to produce energy that could power paper-based analytical sensors. When two aqueous streams are absorbed onto paper to establish co-laminar flow, the streams stay in contact with each other with limited mixing. The interface at which mixing occurs acts as a charge-transfer region, eliminating the need for a salt bridge. We designed a Cu-Zn galvanic cell that powers an LED when two are placed in series. We also used more powerful redox couples (formate and silver, formate and permanganate) to produce higher power density (18 and 3.1 mW mg(-1) Pd). These power densities are greater than previously reported paper microfluidic fuel cells using formate or methanol. The single layer design is much more simplified than previous reports of multi-layer galvanic cells on paper. (C) 2016 Elsevier B.V. All rights reserved.
机译:纸微流体用于生产单层原电池和混合电池,以产生可为纸质分析传感器提供动力的能量。当两种水流被吸收到纸上以建立层流时,在有限的混合下,流保持彼此接触。发生混合的界面充当电荷转移区域,从而消除了对盐桥的需求。我们设计了一个Cu-Zn原电池,当两个串联放置时,它们为LED供电。我们还使用了功能更强大的氧化还原对(甲酸盐和银,甲酸盐和高锰酸盐)来产生更高的功率密度(18和3.1 mW mg(-1)Pd)。这些功率密度大于先前报道的使用甲酸盐或甲醇的纸质微流体燃料电池。单层设计比纸上多层原电池的先前报道要简单得多。 (C)2016 Elsevier B.V.保留所有权利。

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