TY - JOUR
T1 - Microfluidic Fabrication of Hierarchical-Ordered ZIF-L(Zn)@Ti3C2Tx Core–Sheath Fibers for High-Performance Asymmetric Supercapacitors
AU - Wu, Guan
AU - Sun, Suya
AU - Zhu, Xiaolin
AU - Ma, Ziyang
AU - Zhang, Yuman
AU - Bao, Ningzhong
N1 - Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2022/2/14
Y1 - 2022/2/14
N2 - We report hierarchical-ordered ZIF−L(Zn)@Ti3C2Tx MXene core–sheath fibers, in which a ZIF−L(Zn) nanowall array sheath is grown vertically on an anisotropic Ti3C2Tx core by Ti−O−Zn/Ti−F−Zn chemical bonds. Through highly efficient microfluidic assembly and microchannel reactions, ZIF−L(Zn)@Ti3C2Tx exhibits well-developed micro-/mesoporosity, ordered ionic pathways, fast interfacial electron conduction and large-scale fabrication, significantly boosting charges dynamic transport and intercalation. The resultant ZIF−L(Zn)@Ti3C2Tx fiber presents large capacitance (1700 F cm−3) and outstanding rate performance in a 1 M H2SO4 electrolyte. Additionally, ZIF−L(Zn)@Ti3C2Tx fiber-based solid-state asymmetric supercapacitors deliver high energy density (19.0 mWh cm−3), excellent capacitance (854 F cm−3), large deformable/wearable capabilities and long-time cyclic stability (20 000 cycles), which realize natural sunlight-induced self-powered applications to drive water level/earthquake alarm devices.
AB - We report hierarchical-ordered ZIF−L(Zn)@Ti3C2Tx MXene core–sheath fibers, in which a ZIF−L(Zn) nanowall array sheath is grown vertically on an anisotropic Ti3C2Tx core by Ti−O−Zn/Ti−F−Zn chemical bonds. Through highly efficient microfluidic assembly and microchannel reactions, ZIF−L(Zn)@Ti3C2Tx exhibits well-developed micro-/mesoporosity, ordered ionic pathways, fast interfacial electron conduction and large-scale fabrication, significantly boosting charges dynamic transport and intercalation. The resultant ZIF−L(Zn)@Ti3C2Tx fiber presents large capacitance (1700 F cm−3) and outstanding rate performance in a 1 M H2SO4 electrolyte. Additionally, ZIF−L(Zn)@Ti3C2Tx fiber-based solid-state asymmetric supercapacitors deliver high energy density (19.0 mWh cm−3), excellent capacitance (854 F cm−3), large deformable/wearable capabilities and long-time cyclic stability (20 000 cycles), which realize natural sunlight-induced self-powered applications to drive water level/earthquake alarm devices.
KW - Electrochemical Supercapacitors
KW - Hierarchical-Ordered Fiber
KW - High Energy Density
KW - Microfluidic Fabrication
KW - Self-Powered Applications
UR - http://www.scopus.com/inward/record.url?scp=85122062486&partnerID=8YFLogxK
U2 - 10.1002/anie.202115559
DO - 10.1002/anie.202115559
M3 - 文章
C2 - 34919307
AN - SCOPUS:85122062486
SN - 1433-7851
VL - 61
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 8
M1 - e202115559
ER -