期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 9, 期 45, 页码 15138-15146出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.1c03047
关键词
fuel cell; DMFC; electrocatalysis; oxygen reduction reaction; flexible power source; quasi-solid electrolyte
资金
- National Natural Science Foundation of China [21603171, 21902150]
- Postdoctoral Science Foundation of China [2016 M592783]
- Xi ' an Jiaotong University [xjh012020027]
- Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University) [2020019]
Flexible devices are widely used in wearable and portable devices, while fuel cells are considered environmentally friendly and safe for future energy development. This article presents a strategy for high-performance, stable, and flexible direct methanol fuel cells based on a gel electrolyte and single-atom catalyst. The flexible DMFC showed excellent power density at 30 degrees C and stability under different bending degrees.
Flexible devices are widely used in wearable devices and portable devices, so it is necessary to develop flexible batteries as power sources. On the other hand, due to their high efficiency and low pollution, fuel cells are friendly and safe for the environment and are the trend of future energy development. In this article, we report a strategy to achieve high-performance, stable, and flexible direct methanol fuel cells (DMFCs) based on the quasi-solid kalium polyacrylate hydrogel electrolyte and Fe single-atom cathode catalyst. The flexible DMFC delivers a maximum power density of 8.86 mW cm(-2) at 30 degrees C, with excellent stability and robust performance under different bending degrees. Moreover, with the pre-swollen electrolyte, the flexible DMFC can continue to discharge for 54 h without adding fuel. It provides a promising power source for flexible wearable equipment and medical testing equipment. In short, the flexible DMFC that fixes the electrolyte in the gel provides ideas for the diversified design of flexible devices.
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