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Abdullah M, Shah SIA, Jabbour K, John P, Ehsan MF, Karami AM, Ashiq MN, Allakhverdiev SI. Synthesis of NiMn 2O 4/PANI nanosized composite with increased specific capacitance for energy storage applications. Dalton Trans 2024; 53:8680-8691. [PMID: 38700274 DOI: 10.1039/d4dt00722k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Polyaniline (PANI) stands out as a highly promising conducting polymer with potential for advanced utilization in high-performance pseudocapacitors. Therefore, there exists a pressing need to bolster the structural durability of PANI, achievable by developing composite materials that can enhance its viability for supercapacitor applications. In this particular study, a pioneering approach was undertaken to produce a novel NiMn2O4/PANI supercapacitor electrode material. A comprehensive array of analytical techniques was employed to ascertain the structural configuration, morphology, oxidation states of elements, composition, and surface characteristics of the electrode material. The electrochemical evaluation of the NiMn2O4/PANI composite shows a specific capacitance (Cs) of 1530 ± 2 F g-1 at 1 A g-1. Significantly, the composite material displays an outstanding 93.61% retention of its capacity after an extensive 10 000 cycles, signifying remarkable cycling stability, while the 2-electrode configuration reveals a Cs value of 764 F g-1 at 5 mV s-1 and 826 F g-1 at 1 A g-1 with a smaller charge transfer resistance (Rct) value of 0.67 Ω. Chronoamperometric tests showed excellent stability of the fabricated material up to 50 h. This significant advancement bears immense promise for its potential implementation in high-efficiency energy storage systems and heralds a new phase in the development of supercapacitor technology with improved stability and performance metrics.
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Affiliation(s)
- Muhammad Abdullah
- Department of Chemistry, Government College University Lahore, Lahore-54000, Pakistan
| | - Syed Imran Abbas Shah
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan-60800, Pakistan.
| | - Karam Jabbour
- College of Engineering and Technology, American University of the Middle East, Egaila-54200, Kuwait
| | - Peter John
- Department of Chemistry, Government College University Lahore, Lahore-54000, Pakistan
| | - Muhammad Fahad Ehsan
- Department of Civil and Environmental Engineering, Northeastern University, Boston 02115, MA, USA
| | - Abdulnasser M Karami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Muhammad Naeem Ashiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan-60800, Pakistan.
| | - Suleyman I Allakhverdiev
- Controlled Photobiosynthesis Laboratory, К.A. Timiryazev Institute of Plant Physiology RAS, Botanicheskaya Street 35, Moscow, 127276, Russia.
- Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul 34349, Türkiye
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Deka S. Nanostructured mixed transition metal oxide spinels for supercapacitor applications. Dalton Trans 2023; 52:839-856. [PMID: 36541048 DOI: 10.1039/d2dt02733j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
There have been numerous applications of supercapacitors in day-to-day life. Along with batteries and fuel cells, supercapacitors play an essential role in supplementary electrochemical energy storage technologies. They are used as power sources in portable electronics, automobiles, power backup, medical equipment, etc. Among various working electrode materials explored for supercapacitors, nanostructured transition metal oxides containing mixed metals are highly specific and special, because of their stability, variable oxidation states of the constituted metal ions, possibility to tune the mixed metal combinations, and existence of new battery types and extrinsic pseudocapacitance. This review presents the key features and recent developments in the direction of synthesis and electrochemical energy storage behavior of some of the recent morphology-oriented transition metal oxide and mixed transition metal oxide nanoparticles. We also targeted the studies on a few of the recently developed flexible and bendable supercapacitor devices based on these mixed transition metal oxides.
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Affiliation(s)
- Sasanka Deka
- Department of Chemistry, University of Delhi, North Campus, Delhi 110007, India.
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De P, Halder J, Gowda CC, Kansal S, Priya S, Anshu S, Chowdhury A, Mandal D, Biswas S, Dubey BK, Chandra A. Role of porosity and diffusion coefficient in porous electrode used in supercapacitors – Correlating theoretical and experimental studies. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Puja De
- Department of Physics Indian Institute of Technology Kharagpur Kharagpur India
| | - Joyanti Halder
- Department of Physics Indian Institute of Technology Kharagpur Kharagpur India
| | - Chinmayee Chowde Gowda
- School of Nano Science and Technology Indian Institute of Technology Kharagpur Kharagpur India
| | - Sakshi Kansal
- School of Energy Science and Engineering Indian Institute of Technology Kharagpur Kharagpur India
| | - Surbhi Priya
- School of Energy Science and Engineering Indian Institute of Technology Kharagpur Kharagpur India
| | - Satvik Anshu
- School of Energy Science and Engineering Indian Institute of Technology Kharagpur Kharagpur India
| | - Ananya Chowdhury
- Department of Physics Indian Institute of Technology Kharagpur Kharagpur India
| | - Debabrata Mandal
- School of Nano Science and Technology Indian Institute of Technology Kharagpur Kharagpur India
| | - Sudipta Biswas
- Department of Physics Indian Institute of Technology Kharagpur Kharagpur India
| | - Brajesh Kumar Dubey
- Department of Civil Engineering Indian Institute of Technology Kharagpur Kharagpur India
| | - Amreesh Chandra
- Department of Physics Indian Institute of Technology Kharagpur Kharagpur India
- School of Nano Science and Technology Indian Institute of Technology Kharagpur Kharagpur India
- School of Energy Science and Engineering Indian Institute of Technology Kharagpur Kharagpur India
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