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Singha A, Pandey P, Sahu A, Qureshi M. Ultrathin Dielectric Triggered Charge Injection Dynamics for High-Performance Metal Organic Framework/MXene Supercapacitors. J Phys Chem Lett 2024; 15:2123-2132. [PMID: 38363807 DOI: 10.1021/acs.jpclett.4c00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
A MOF-MXene-BN three-component heterostructure exhibits impressive pseudocapacitive behavior with fast charge injection facilitated by an ultrathin dielectric h-BN. To address the MOF's low electronic conductivity, a 2D NiCo-MOF is grown on MXene nanosheets, enhancing conductivity and providing abundant redox-active sites. BN (boron nitride) serves a dual purpose, preventing restacking and facilitating charge injection toward NiCo-MOF. Synergistic contributions of 2D materials and a heterostructure with favorable charge injection dynamics among MOF, MXene, and BN contribute to enhanced electrochemical performance. Charge transfer mechanisms are elucidated using distribution of relaxation time technique to analyze complex EIS data and to differentiate electrode kinetics based on their respective relaxation time constants. An asymmetric supercapacitor, MOF-MXene-BN//activated carbon, achieves a specific capacity of 798 C/g, an energy density of 81 Wh/kg at 365 W/kg, and 81% capacitance retention over 5,000 cycles.
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Affiliation(s)
- Anjana Singha
- Materials Science Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Peeyush Pandey
- Materials Science Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Alpana Sahu
- Materials Science Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Mohammad Qureshi
- Materials Science Laboratory, Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
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2
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Sahoo B, Sahoo PK, Rao Bhaviripudi V, Sahu KC, Tripathi A, Sahoo NK, Aepuru R, Gaikwad VM, Sahoo S, Satpati AK, Lee CP. Multifunctional Dy 2NiMnO 6/Reduced Graphene Oxide Nanocomposites and Their Catalytic, Electromagnetic Shielding, and Electrochemical Properties. ACS OMEGA 2024; 9:4600-4612. [PMID: 38313538 PMCID: PMC10832015 DOI: 10.1021/acsomega.3c07759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 02/06/2024]
Abstract
Multifunctional nanocomposites have shown great interest in clean energy systems and environmental applications in recent years. Herein, we first reported the synthesis of Dy2NiMnO6 (DNMO)/reduced graphene oxide (rGO) nanocomposites utilizing a hybrid approach involving sol-gel and solvothermal processes. Subsequently, we investigated these nanocomposites for their applications in catalysis, electromagnetic interference shielding, and supercapacitors. A morphological study suggests spherical-shaped DNMO nanoparticles of an average size of 382 nm that are uniformly distributed throughout the surface without any agglomeration. The as-prepared nanocomposites were used as catalysts to investigate the catalytic reduction of 4-nitrophenol in the presence of NaBH4. DNMO/rGO nanocomposites demonstrate superior catalytic activity when compared with bare DNMO, with the rate of reduction being influenced by the composition of the DNMO/rGO nanocomposites. In addition, novel multifunctional DNMO/rGO was incorporated into polyvinylidene difluoride (PVDF) to develop a flexible nanocomposite for electromagnetic shielding applications and exhibited a shielding effectiveness of 6 dB with 75% attenuation at a frequency of 8.5 GHz compared to bare PVDF and PVDF-DNMO nanocomposite. Furthermore, the electrochemical performance of DNMO/rGO nanocomposites was investigated as an electrode material for supercapacitors, exhibiting the highest specific capacitance of 260 F/g at 1 A/g. These findings provide valuable insights into the design of DNMO/rGO nanocomposites with remarkable performance in sustainable energy and environmental applications.
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Affiliation(s)
- Bibhuti
Bhusan Sahoo
- Department
of Mechanical Engineering, Siksha “O”
Anusandhan, Deemed to Be University, Bhubaneswar, Odisha 751030, India
| | - Prasanta Kumar Sahoo
- Department
of Mechanical Engineering, Siksha “O”
Anusandhan, Deemed to Be University, Bhubaneswar, Odisha 751030, India
- Environmental
Hydrology Division, National Institute of Hydrology, Jalvigyan Bhawan, Roorkee 247667, India
| | - Vijayabhaskara Rao Bhaviripudi
- Department
of Physics, Defence Institute of Advanced
Technology, Girinagar, Pune, Maharashtra 411025, India
- Departamento
de Ingeniería Química, Biotecnología y Materiales,
FCFM, Universidad de Chile, Santiago 8370415, Chile
| | - Krushna Chandra Sahu
- Department
of Chemistry, Siksha ‘O’ Anusandhan,
Deemed to be University, Bhubaneswar, Odisha 751030, India
| | - Abhishek Tripathi
- Department
of Metallurgical and Materials Engineering, Malaviya National Institute of Technology Jaipur, Jaipur 302017, India
| | - Naresh Kumar Sahoo
- Department
of Chemistry, Siksha ‘O’ Anusandhan,
Deemed to be University, Bhubaneswar, Odisha 751030, India
| | - Radhamanohar Aepuru
- Departamento
de Mecanica, Facultad de Ingeniería, Universidad Tecnológica Metropolitana, Santiago 7800002, Chile
| | - Vishwajit M. Gaikwad
- Department
of Physics, Amolakchand Mahavidyalaya, Yavatmal, Maharashtra 445001, India
| | - Srikant Sahoo
- Analytical
Chemistry Division, Bhabha Atomic Research
Centre, Trombay, Mumbai 400085, India
| | - Ashis Kumar Satpati
- Analytical
Chemistry Division, Bhabha Atomic Research
Centre, Trombay, Mumbai 400085, India
| | - Chuan-Pei Lee
- Department
of Applied Physics and Chemistry, University
of Taipei, Taipei 10048, Taiwan
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Pathak M, Mane P, Chakraborty B, Cho JS, Jeong SM, Rout CS. Construction of Nickel Molybdenum Sulfide/Black Phosphorous 3D Hierarchical Structure Toward High Performance Supercapacitor Electrodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310120. [PMID: 38279619 DOI: 10.1002/smll.202310120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/09/2024] [Indexed: 01/28/2024]
Abstract
Supercapacitors (SCs) with outstanding versatility have a lot of potential applications in next-generation electronics. However, their practical uses are limited by their short working potential window and ultralow-specific capacity. Herein, the facile one-step in-situ hydrothermal synthesis is employed for the construction of a NiMo3 S4 /BP (black phosphorous) hybrid with a 3D hierarchical structure. After optimization, the NiMo3 S4 /BP hybrid displays a high specific capacitance of 830 F/g at 1 A/g compared to the pristine NiMo3 S4 electrode. The fabricated NiMo3 S4 /BP//NiCo2 S4 /Ti3 C2 Tx asymmetric supercapacitor exhibits a better specific capacitance of 120 F/g at 0.5 A/g, which also demonstrates a high energy density of 54 Wh/kg at 1148.53 W/kg and good cycle stability with capacity retention of 86% and 97% of Coulombic efficiency after 6000 cycles. Further from the DFT simulations, the hybrid NiMo3 S4 /BP structure shows higher conductivity and quantum capacitance, which demonstrate greater charge storage capability, due to enhanced electronic states near the Fermi level. The lower diffusion energy barrier for the electrolyte K+ ions in the hybrid structure is facilitated by improved charge transfer performance for the hybrid NiMo3 S4 /BP. This work highlights the potential significance of hybrid nanoarchitectonics and compositional tunability as an emerging method for improving the charge storage capabilities of active electrodes.
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Affiliation(s)
- Mansi Pathak
- Centre for Nano and Material Sciences, Jain (deemed-to-be University), Jain Global Campus, Kanakapura Road, Bangalore, 562112, India
| | - Pratap Mane
- Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Brahmananda Chakraborty
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Mumbai, 400094, India
| | - Jung Sang Cho
- Department of Engineering Chemistry, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Sang Mun Jeong
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Chandra Sekhar Rout
- Centre for Nano and Material Sciences, Jain (deemed-to-be University), Jain Global Campus, Kanakapura Road, Bangalore, 562112, India
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
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Setianto S, Men LK, Bahtiar A, Panatarani C, Joni IM. Carbon quantum dots with honeycomb structure: a novel synthesis approach utilizing cigarette smoke precursors. Sci Rep 2024; 14:1996. [PMID: 38263381 PMCID: PMC10806174 DOI: 10.1038/s41598-024-52106-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/13/2024] [Indexed: 01/25/2024] Open
Abstract
This study presents a novel approach to synthesizing honeycomb carbon quantum dots (CQDs) from cigarette smoke by a hydrothermal process. A comprehensive characterization of these CQDs, conducted through high-resolution transmission electron microscopy (HRTEM), showcases their unique honeycomb structure, with an average particle size of 6.3 nm. Photoluminescence (PL) in CQDs is a captivating phenomenon where these nanoscale carbon structures emit strong blue luminescence at 461 nm upon exposure to ultraviolet light, with their excitation peak occurring at 380 nm. Fourier Transform Infrared (FTIR) analysis also identifies specific functional groups within the CQDs, offering valuable insights into the mechanisms governing their photoluminescence. Analysis of excitation spectra indicates the presence of both aromatic C=C bonds at 254 nm and C-O bonds from 280 to 420 nm.
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Affiliation(s)
- Setianto Setianto
- Department of Physics, FMIPA, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Sumedang, 45363, Jawa Barat, Indonesia.
- Functional Nano Powder University Centers of Excellence, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Jatinangor, 45363, Jawa Barat, Indonesia.
| | - Liu Kin Men
- Department of Physics, FMIPA, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Sumedang, 45363, Jawa Barat, Indonesia
| | - Ayi Bahtiar
- Department of Physics, FMIPA, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Sumedang, 45363, Jawa Barat, Indonesia
| | - Camellia Panatarani
- Department of Physics, FMIPA, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Sumedang, 45363, Jawa Barat, Indonesia
- Functional Nano Powder University Centers of Excellence, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Jatinangor, 45363, Jawa Barat, Indonesia
| | - I Made Joni
- Department of Physics, FMIPA, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Sumedang, 45363, Jawa Barat, Indonesia
- Functional Nano Powder University Centers of Excellence, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Jatinangor, 45363, Jawa Barat, Indonesia
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Janardhanan JC, Padmanabhan NT, Jandas PJ, Nayar NV, Manoj N, Pillai SC, John H. Directed morphology engineering of 2D MoS 2 nanosheets to 1D nanoscrolls with enhanced hydrogen evolution and specific capacitance. J Colloid Interface Sci 2023; 652:240-249. [PMID: 37595441 DOI: 10.1016/j.jcis.2023.08.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/03/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023]
Abstract
1D-molybdenum disulfide (MoS2) nanoscrolls displayed enhanced electrochemical properties compared to 2D-MoS2 nanosheet counterparts. Rolling of nanosheets is the main fabrication route to nanoscrolls. However, owing to the conflict between chemical stability and multiple bending, the morphology transition from nanosheets to nanoscrolls is quite challenging. Herein we describe a reversible morphology transition from nanosheets to nanoscrolls by utilizing non-covalent interactions between MoS2 nanosheets and phenothiazine based organic dye. Interestingly, nanoscrolls can easily be opened back into nanosheets by destroying the non-covalent interactions with organic solvents. The prepared nanoscrolls exhibited enhanced electrochemical properties than nanosheets. Compared to nanosheets, nanoscrolls exhibited comparatively lower overpotential with a Tafel slope of 141 mV dec-1 and high specific capacitance of 1868 F g-1. Hydrogen evolution by the Volmer-Heyrovsky mechanism being superior for the nanoscrolls is envisaged by the relatively increased availability of Hads sites at MoS2 edges induced by scrolling. Whereas the high specific capacitance value of nanoscrolls is ascribed to the enhanced electrical double-layer capacitance mediated charge storage, which arises due to the synergistic effect of both scrolled structure and the electron-rich phenothiazine-based dye.
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Affiliation(s)
- Jith C Janardhanan
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Nisha T Padmanabhan
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - P J Jandas
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Nabendu V Nayar
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Narayanapillai Manoj
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Suresh C Pillai
- Nanotechnology and Bio-Engineering Research Group, Department of Environmental Science, School of Science, Atlantic Technological University, Sligo, Ash Lane, Sligo F91YW50, Ireland
| | - Honey John
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India.
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Gkili C, Deligiannakis K, Lappa E, Papoulia C, Sazou D. Electrodeposition of Polyaniline on Tantalum: Redox Behavior, Morphology and Capacitive Properties. Molecules 2023; 28:7286. [PMID: 37959706 PMCID: PMC10648180 DOI: 10.3390/molecules28217286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Polyaniline (PANI) is among the most widely studied conducting polymers due to its potential technological applications in various fields. Recently, PANI-based hybrid materials have played an important role in the development of energy storage and conversion systems. The aim of the present work is the investigation of the simultaneous electrochemical growth of PANI and Ta2O5 on the Ta substrate and the characterization of the morphology, redox behavior and pseudocapacitive properties of the resulting micro- or nanostructured composite thin films. A well-adherent conductive Ta2O5-PANI composite film was first formed using cyclic voltammetry on Ta that facilitates the on-top electrodeposition of single PANI via an autocatalytic mechanism. The electrochemical characterization of the Ta|Ta2O5-PANI|PANI electrodes reveals unique redox properties of PANI not shown previously upon using PANI electrodeposition on Ta. Scanning electron microscopy shows that the morphology of the electrodeposited films comprises nano- or microspheres that may develop into nano- or microrods when the polymerization proceeds. Preliminary evaluation of the capacitive properties of the Ta|Ta2O5-PANI|PANI electrode shows adequately high specific capacitance values as high as 1130 F g-1 (at 9.2 mA cm-2), depending on the electrochemical parameters, as well as adequate stability (~80% retention after 100 cycles), indicating their potential application as energy storage devices.
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Affiliation(s)
- Chrysanthi Gkili
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.G.); (K.D.); (E.L.)
| | - Konstantinos Deligiannakis
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.G.); (K.D.); (E.L.)
| | - Eirini Lappa
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.G.); (K.D.); (E.L.)
| | - Chrysanthi Papoulia
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Dimitra Sazou
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.G.); (K.D.); (E.L.)
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Shao S, Liu S, Xue C. Electrodeposition Synthesis of Coral-like MnCo Selenide Binder-Free Electrodes for Aqueous Asymmetric Supercapacitors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2452. [PMID: 37686960 PMCID: PMC10489885 DOI: 10.3390/nano13172452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
Bimetallic selenide compounds show great potential as supercapacitor electrode materials in energy storage and conversion applications. In this work, a coral-like MnCo selenide was grown on nickel foam using a facile electrodeposition method to prepare binder-free supercapacitor electrodes. The heating temperature was varied to tune the morphology and crystal phase of these electrodes. Excellent electrochemical performance was achieved due to the unique coral-like, dendritic- dispersed structure and a bimetallic synergistic effect, including high specific capacitance (509 C g-1 at 1 A g-1) and outstanding cycling stability (94.3% capacity retention after 5000 cycles). Furthermore, an asymmetric supercapacitor assembled with MnCo selenide as the anode and active carbon as the cathode achieved a high specific energy of 46.2 Wh kg-1 at 800 W kg-1. The work demonstrates that the prepared coral-like MnCo selenide is a highly promising energy storage material.
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Affiliation(s)
- Siqi Shao
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; (S.S.); (C.X.)
| | - Song Liu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; (S.S.); (C.X.)
- Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining, Anhui University of Science and Technology, Huainan 232001, China
| | - Changguo Xue
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; (S.S.); (C.X.)
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026, China
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