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Selected functionalization of continuous graphene fibers for integrated energy conversion and storage

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Increasing attention has been paid to develop flexible integrated energy devices,but it remains a big challenge to achieve a common electrode for building both energy conversion and storage devices with high performance.Here,we for the first time selectively functionalize polyaniline (PANI) and platinum (Pt)inside different segments of chemical vapor deposition grown continuous graphene tube,achieving selectively functionalized graphene composite (PANI//Pt@G) fibers.The PANI@G and Pt@G parts could be used as efficient electrodes for supercapacitor with a specific capacitance of 284 mF cm-2 and dye-sensitized solar cell with a power conversion efficiency of 4.73％,respectively.By using a PANI//Pt@G fiber as the common electrode,an integrated energy device with a total energy conversion and storage efficiency of 3.07％ is realized.The continuous graphene tubes could be functionalized with other active materials for other flexible and wearable electronics.

Graphene tubePolyanilineSelected functionalizationSolar cellSupercapacitorIntegrated device

Yao Yao、Tian Lv、Ning Li、Zilin Chen、Chi Zhang、Tao Chen

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Shanghai Key Lab of Chemical Assessment and Sustainability,School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China

This work was supported by the National Natural Science Foundation of ChinaThis work was supported by the National Natural Science Foundation of ChinaThis work was supported by the National Natural Science Foundation of ChinaThis work was supported by the National Natural Science Foundation of ChinaScience & Technology Commission of Shanghai MunicipalityShanghai Rising-Star ProgramYouth Talent Support Program at ShanghaiProgram for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learningand the Fundamental Research Funds for the Central Universities

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2020

科学通报(英文版)
中国科学院

科学通报(英文版)

SCIEI
ISSN：1001-6538
年,卷(期)：2020.65(6)
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