Thermal treatment for promoting interfacial interaction in Co-BDC/Ti 3 C 2 T x hybrid nanosheets for hybrid supercapacitors

The design and synthesis of high-performance metal-organic frameworks (MOFs)-based electrodes are important for hybrid supercapacitors (HSC). Herein, enhanced interfacial interaction in Co-BDC/Ti C T (denoted as CoTC) hybrid nanosheets is achieved through thermal treatment, giving remarkably improve...

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Bibliographic Details
Published inJournal of colloid and interface science Vol. 617; p. 633
Main Authors Yang, Xifeng, Xu, Chuming, Li, Shuang, Wu, Ya-Pan, Wu, Xue-Qian, Yin, Ya-Meng, Li, Dong-Sheng
Format Journal Article
LanguageEnglish
Published United States 01.07.2022
Subjects
Hybrid supercapacitors
MOF/MXene
Hybrid nanosheets
Interfacial interaction
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Summary:The design and synthesis of high-performance metal-organic frameworks (MOFs)-based electrodes are important for hybrid supercapacitors (HSC). Herein, enhanced interfacial interaction in Co-BDC/Ti C T (denoted as CoTC) hybrid nanosheets is achieved through thermal treatment, giving remarkably improved capacity performance compared with CoTC. The low temperature annealing treatment enables modulation of the bridging bonds content of CoTC and thus regulates the interfacial coupling effect between Co-BDC and Ti C T . Moreover, both the detailed XPS and XANES analysis reveal that the strong interfacial interactions between the two components promote a partial electron transfer from Ti C T to Co-BDC through the Ti-O-Co interfacial bonds. Consequently, it endows the Co-BDC with enhanced conductivity as well as the higher valence of Ti species in Ti C T , hence contributes a remarkable enhanced specific capacity. This work will provide a pathway to design advanced MOF/MXene materials for HSC.
ISSN:1095-7103