期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 4, 页码 4473-4481出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b18511
关键词
bifunctional catalyst; formic acid; flexible hydrogen generator; aerogel; flexible fuel cell
资金
- China Postdoctoral Science Foundation [2018M632406]
- Ministry of Science and Technology of China [2016YFE0105700, 2016YFA0200700]
- National Natural Science Foundation of China [21373264, 21573275]
- Science and Technology Project of Nanchang [2017-SJSYS-008]
- Thousand Youth Talents Plan [Y3BQA11001]
A proton exchange membrane fuel cell (PEMFC) system with a hydrogen generator could have higher energy density than flexible batteries and supercapacitors and is possible to meet the urgent demand of flexible electronics. However, a flexible PEMFC pack is still not available due to the absence of a flexible hydrogen generator. To solve this problem, we successfully invented a flexible and adaptable hydrogen generator, which was realized by a new bifunctional aerogel catalyst with the abilities of both storing and producing hydrogen. The flexible hydrogen generator can produce hydrogen at room temperature when the device is inverting, bending, and rotating. By combining this flexible hydrogen generator and the unique flexible PEMFC stack of our group, we originally made a highly flexible and adaptable fuel cell pack with a high theoretical energy density (up to 722 Wh.kg(-1)) and current achieved energy density (135.9 Wh.kg(-1)). Such a PEMFC pack is highly promising to meet the high demand of flexible electronics.
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