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Laser‐Assisted Printing of Electrodes Using Metal–Organic Frameworks for Micro‐Supercapacitors
Author(s) -
Zhang Wang,
Li Rui,
Zheng Han,
Bao Jiashuan,
Tang Yujia,
Zhou Kun
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202009057
Subject(s) - materials science , supercapacitor , fabrication , carbonization , laser , metal organic framework , nanotechnology , composite number , porosity , nanomaterials , electrode , carbon fibers , microstructure , capacitance , composite material , scanning electron microscope , optics , chemistry , physics , organic chemistry , adsorption , medicine , alternative medicine , pathology
Direct laser scribing, an advanced printing technique, has been recently developed to enable the carbonization of carbonaceous precursors in a rapid, precise, and cost‐effective manner. Herein, it is reported that metal−organic frameworks (MOFs) can be converted into patterned derived carbon with desired structural features using a CO 2 infrared laser system. Metal species in MOFs play a key role in the morphology, porous structure, and crystallinity of the resulting laser‐induced products by studying six representative MOFs. Diverse features such as ordered porous structure and continuous network microstructure can be obtained in the laser‐induced MOF‐derived carbon, which is influenced by the melting and boiling points of metals and their magnetic and catalytic behaviors. Furthermore, a core–shell structured composite (MOF‐199@ZIF‐67) has been designed and prepared for the fabrication of 12‐interdigital electrodes derived from the composite by laser‐assisted printing. The as‐obtained electrodes with highly porous and hierarchical structure show an enhanced specific capacitance for micro‐supercapacitors (MSCs). This work provides a complementary heat treatment method to produce MOF‐derived carbon nanomaterials with desired structural features and patterns for MSCs and micro‐device‐related applications.