Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device
Sponge analogous nano pebbles of bismuth vanadate (BiVO4) decorated over multi-walled carbon nanotubes (MWCNTs) synthesized by the successive ionic layer adsorption and reaction (SILAR) method have been explored towards supercapacitor application through enhanced (8 times) surface roughness (Sa) com...
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| Language: | English |
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Elsevier
2025-04-01
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| Series: | Carbon Trends |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667056925000252 |
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| author | Lakshmana Kumar Bommineedi Tushar B. Deshmukh Avinash C. Mendhe Sachin R. Rondiya Babasaheb R. Sankapal |
| author_facet | Lakshmana Kumar Bommineedi Tushar B. Deshmukh Avinash C. Mendhe Sachin R. Rondiya Babasaheb R. Sankapal |
| author_sort | Lakshmana Kumar Bommineedi |
| collection | DOAJ |
| description | Sponge analogous nano pebbles of bismuth vanadate (BiVO4) decorated over multi-walled carbon nanotubes (MWCNTs) synthesized by the successive ionic layer adsorption and reaction (SILAR) method have been explored towards supercapacitor application through enhanced (8 times) surface roughness (Sa) compared to bare MWCNTs; well supported by wettability studies. Electrochemical studies through CV, GCD, EIS, and electrochemical stability performances of the electrode have been performed in 1 M KCl electrolyte where MWCNTs/BiVO4 showed the highest capacitance (1334.66 F/g) at 3 mV/s with good electrochemical stability of 103 % even after 3500 CV cycles. Interestingly, symmetric solid-state supercapacitor assembled using PVA embedded LiClO4 gel exhibited a remarkable potential window of 1.83 V with corresponding energy and power densities of 18.38 Wh/kg and 2.13 kW/kg, respectively at 1 mA/cm2. The novelty of this work lies in the introduction of a symmetric device using MWCNTs/BiVO4 electrodes for the first time along with its potential for real-world use by illuminating ‘VNIT ‘acronym consisting of 21 red LEDs. |
| format | Article |
| id | doaj-art-eb0b7d34354c4c3486382d6ccb8da8c3 |
| institution | OA Journals |
| issn | 2667-0569 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Trends |
| spelling | doaj-art-eb0b7d34354c4c3486382d6ccb8da8c32025-08-20T02:12:07ZengElsevierCarbon Trends2667-05692025-04-011910047510.1016/j.cartre.2025.100475Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state deviceLakshmana Kumar Bommineedi0Tushar B. Deshmukh1Avinash C. Mendhe2Sachin R. Rondiya3Babasaheb R. Sankapal4Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440010, Maharashtra, India; Malla Reddy Engineering College, Campus 1, Maisammaguda, post via Kompally, Rangareddy District, Secunderabad-500100, Telangana, IndiaNano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440010, Maharashtra, India; Entity 2 Energy Storage Private Limited, Tenneer Kuppam, Chennai, Tamil Nadu 600056, IndiaDepartment of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of KoreaDepartment of Materials Engineering, Indian Institute of Science (IISc), Bengaluru, IndiaNano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440010, Maharashtra, India; Corresponding author.Sponge analogous nano pebbles of bismuth vanadate (BiVO4) decorated over multi-walled carbon nanotubes (MWCNTs) synthesized by the successive ionic layer adsorption and reaction (SILAR) method have been explored towards supercapacitor application through enhanced (8 times) surface roughness (Sa) compared to bare MWCNTs; well supported by wettability studies. Electrochemical studies through CV, GCD, EIS, and electrochemical stability performances of the electrode have been performed in 1 M KCl electrolyte where MWCNTs/BiVO4 showed the highest capacitance (1334.66 F/g) at 3 mV/s with good electrochemical stability of 103 % even after 3500 CV cycles. Interestingly, symmetric solid-state supercapacitor assembled using PVA embedded LiClO4 gel exhibited a remarkable potential window of 1.83 V with corresponding energy and power densities of 18.38 Wh/kg and 2.13 kW/kg, respectively at 1 mA/cm2. The novelty of this work lies in the introduction of a symmetric device using MWCNTs/BiVO4 electrodes for the first time along with its potential for real-world use by illuminating ‘VNIT ‘acronym consisting of 21 red LEDs.http://www.sciencedirect.com/science/article/pii/S2667056925000252SupercapacitorBiVO4NanopebblesSILARMWCNTs |
| spellingShingle | Lakshmana Kumar Bommineedi Tushar B. Deshmukh Avinash C. Mendhe Sachin R. Rondiya Babasaheb R. Sankapal Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device Carbon Trends Supercapacitor BiVO4 Nanopebbles SILAR MWCNTs |
| title | Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device |
| title_full | Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device |
| title_fullStr | Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device |
| title_full_unstemmed | Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device |
| title_short | Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device |
| title_sort | pseudo bismuth vanadate anchored edlc mwcnts supercapacitive electrode to a symmetric solid state device |
| topic | Supercapacitor BiVO4 Nanopebbles SILAR MWCNTs |
| url | http://www.sciencedirect.com/science/article/pii/S2667056925000252 |
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