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INTERNATIONAL JOURNAL OF ENERGY RESEARCH · 2022 ·Vol. 46 ·期 11 ·16075-16081 · IF 4.672

A hollow structure for flow and bendable paper-based zinc-air battery

Yang Yang,Haoran Zhang,Xun Zhu,Dingding Ye,Rong Chen,Qiang Liao

Summary Tremendous research has focused on the wearable electronic device, leading to the basic requirement of suitable power sources. Herein, we report one bendable paper-based zinc-air battery with a novel hollow channel structure. It achieves a maximum power density of 138 mW/cm 2 , outperforming the state-of-art paper-based batteries reported previously. The boosted performance is assigned to the low charge transfer resistance and facilitated mass transfer from the hollow structure. It demonstrates the positive design of microchannel structure is profitable for the power-generation enhancement, and offers a possible route to commercialize the paper-based power generators.

研究领域: 电化学能源 · 柔性电子学 · 材料科学 · 纳米能源 · 生物医学工程

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ANALYTICA CHIMICA ACTA · 2019 · IF 5.256

An efficient thin-walled Pd/polypyrrole hybrid nanotube biocatalyst for sensitive detection of ascorbic acid

Mengxiao Zhong,Maoqiang Chi,Yun Zhu,Ce Wang,Xiaofeng Lu

Controllable fabrication of novel and uniform noble metal nanoparticles on a specific support with a superior catalytic or electrocatalytic performance is of significantly importance for practical applications. In this report, we demonstrated an effective way to fabricate uniform thin-walled Pd/polypyrrole (PPy) hollow nanotubes . The prepared Pd/PPy hybrid nanotubes exhibited an excellent peroxidase-like activity to oxidize a typical peroxidase substrate such as 3,3′,5,5′-tetramethylbenzidine in comparison with traditional Pd/C and Pd black catalysts. The outstanding catalytic activity of the Pd/PPy hybrid nanotubes for peroxidase mimicking could be resulting from their unique hollow characteristic and an interfacial effect between PPy and Pd components. Based on the favorable catalytic property of the Pd/PPy hybrid nanotubes, a convenient and rapid colorimetric way to sensitively determine ascorbic acid has been presented. The detection limit was around 0.062 μM and an excellent selectivity was also achieved. The developed detection system in this study could be extended to the fields of bioscience and biotechnology with promising prospects.

CAS / MDL: 67-68-5 109-97-7 13820-53-6

研究领域: 生物化学 · 材料科学 · 分析化学

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A hollow structure for flow and bendable paper-based zinc-air battery

An efficient thin-walled Pd/polypyrrole hybrid nanotube biocatalyst for sensitive detection of ascorbic acid