Journal article
Construction of a Cu-Based Metal-Organic Framework by Employing a Mixed-Ligand Strategy and Its Facile Conversion into Nanofibrous CuO for Electrochemical Energy Storage Applications
INORGANIC CHEMISTRY, v 60(22), pp 16986-16995
15 Nov 2021
PMID: 34699204
Abstract
Recently, metal-organic frameworks (MOFs) have been widely employed as a sacrificial template for the construction of nanostructured materials for a range of applications including energy storage. Herein, we report a facile mixed-ligand strategy for the synthesis of a Cu-MOF, [Cu-3(Azopy)(3)(BTTC)(3)(H2O)(3)center dot 2H(2)O](n) (where BTTC = 1,2,4,5-benzenetetracarboxylic acid and Azopy = 4,4'-azopyridine), via a slow-diffusion method at room temperature. X-ray analysis authenticates the two-dimensional (2D)-layered framework of Cu-MOF. Topologically, this 2D-layered structure is assigned as a 4-connected unimodal net with sql topology. Further, nanostructured CuO is obtained via a simple precipitation method by employing Cu-MOF as a precursor. After analysis of their physicochemical properties through various techniques, both materials are used as surface modifiers of glassy carbon electrodes for a comparative electrochemical study. The results reveal a superior charge storage performance of CuO (244.2 F g(-1) at a current density of 0.8 A g(-1)) with a high rate capability compared to Cu-MOF. This observation paves the pathway for the strategic design of high-performing supercapacitor electrode materials.
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Details
- Title
- Construction of a Cu-Based Metal-Organic Framework by Employing a Mixed-Ligand Strategy and Its Facile Conversion into Nanofibrous CuO for Electrochemical Energy Storage Applications
- Publication Details
- INORGANIC CHEMISTRY, v 60(22), pp 16986-16995
- Publisher
- AMER CHEMICAL SOC; WASHINGTON
- Number of pages
- 9
- Grant note
- S.M.M. acknowledges SERB-DST (Project CRG/2020/001769), CSIR, New Delhi, India [Project 01(2935)/18/ERII], BRNS (Project 58/14/17/2020-BRNS), and IIT Indore for financial support. The authors are grateful to Sophisticated Instrumentation Centre, IIT Indore, for offering characterization services, IIT Kanpur for XPS, and Sophisticated Analytical Instrument Facility, IIT Bombay, for HRTEM characterization facilities. M.S. expresses gratitude to the Ministry of Human Resource Development, New Delhi, India, for a Teaching Assistantship fellowship during his Ph.D. and the United States-India Educational Foundation, New Delhi, India, for the Fulbright-Nehru Postdoctoral Fellowship (Award 2558/FNPDR/2020). The authors acknowledge Dr. Vinod Kumar, Head MEMS, IIT Indore, for the SEM facility. R.R. and P.K. express gratitude to DST-Inspire, New Delhi, India, for providing fellowship.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Drexel University
- Web of Science ID
- WOS:000720776700014
- Scopus ID
- 2-s2.0-85118776099
- Other Identifier
- 991021860670504721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Inorganic & Nuclear