Article
Chemistry, Multidisciplinary
S. K. Safdar Hossain, Baban Dey, Syed Sadiq Ali, Arup Choudhury
Summary: In this study, poly(m-aminophenol) (PmAP) was used as a conductive supercapacitor binder to replace poly(vinylene difluoride) (PVDF). The advantages of using PmAP include its solubility in organic solvents, film-forming properties, and involvement in pseudocapacitive reactions. A ternary nanocomposite film consisting of vanadium pentoxide (V2O5), amino-functionalized graphene (amino-FG) and PmAP was fabricated and evaluated in different electrolytes, KCl and Li2SO4. The V2O5/amino-FG/PmAP nanocomposite showed improved pseudocapacitive performance and a 5-fold increase in specific capacitance compared to the V2O5/amino-FG/PVDF nanocomposite. Solid-state asymmetric supercapacitors (ASCs) using V2O5/amino-FG/PmAP film as the positive electrode exhibited high energy density in Li2SO4 electrolyte.
Article
Electrochemistry
Takuya Eguchi, Keiichiro Sawada, Masahiro Tomioka, Seiji Kumagai
Summary: A high-energy-density Li-ion capacitor was developed using activated carbon and silicon, showing good energy density and rate stability, but low cycling stability. Adjusting the cell voltage range and mass ratio can improve sustainability and power density.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Francisco Javier Diaz Sanchez, Michael Chung, Muhammad Waqas, Vasileios Koutsos, Stewart Smith, Norbert Radacsi
Summary: This paper reports a one-step method for fabricating novel three-dimensional sponge-like piezoelectric electrospun nanofiber structures. By adding polyethylene oxide and lithium chloride to polyvinylidene fluoride and polyvinylidene fluoride-co-trifluoroethylene solutions, 700 micrometer thick sponge-like fiber mats were created and used as active cores for piezoelectric generators. The resulting generators showed higher peak-to-peak voltage and instantaneous output power.
Review
Chemistry, Multidisciplinary
Ying Duan, Changle Li, Zhantong Ye, Hongpeng Li, Yanliang Yang, Dong Sui, Yanhong Lu
Summary: Lithium-ion capacitors (LICs) have the potential to bridge the performance gap between lithium-ion batteries and supercapacitors, and dual-carbon lithium-ion capacitors (DC-LICs) are particularly attractive due to their low cost, high conductivity, and tunable nanostructure. DC-LICs show superior electrochemical performances compared to traditional LICs and are considered a promising alternative for energy storage devices. The mismatch between the cathode and anode can be further suppressed by using carbon nanomaterials.
Review
Chemistry, Physical
Abdudin G. Temam, Adil Alshoaibi, Seyoum A. Getaneh, Chawki Awada, Assumpta C. Nwanya, Paul M. Ejikeme, Fabian I. Ezema
Summary: The concerns of sustainable energy rely on efficient renewable energy sources and effective storage devices. Supercapacitors are reliable energy storage devices with rapid charging rate, high power density, simple setup, and good stability. The performance of supercapacitors is significantly influenced by electrode materials. Vanadium pentoxide, with mixed oxidation states, eco-friendliness, low cost, high capacitance, and high energy density, is a potential electroactive material for supercapacitors. However, its poor conductivity and low cyclic stability are major drawbacks that affect its electrochemical properties. Various strategies to overcome these limitations have been reviewed in this article.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
V. Uma Shankar, P. Senthil Kumar, D. Govindarajan, P. Nethaji, G. Bharath Balji
Summary: A high-performance symmetric electrochemical capacitor based on ruthenium dioxide anchored on reduced graphene oxide nanostructures was developed and tested in Na2SO4 aqueous electrolyte. The rGO/RuO2 electrode showed a high cyclic efficiency of 96%, considerably higher than pure RuO2.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Materials Science, Multidisciplinary
Zhigeng Zhai, Chenchen Han, Xiaobo Ding, Junsheng Zhu
Summary: A novel CoNi2S4 nanoparticle-loaded carbon nanofiber (CoNi2S4-CN) composite was successfully synthesized using a facile one-pot synthetic strategy. The composite exhibited improved electrochemical performance compared to pure CoNi2S4, with higher specific capacitance values. The combination of CoNi2S4 and CNF also resulted in a decrease in electrochemical reaction resistance.
Article
Energy & Fuels
Bipin S. Chikkatti, Ashok M. Sajjan, Prakash B. Kalahal, Nagaraj R. Banapurmath, Narasimha H. Ayachit
Summary: This study describes the preparation and characterization of flexible films of poly(lactic acid) and poly(4-styrene sulfonate) for supercapacitors. Various techniques were used to analyze the physicochemical and electrochemical properties of the films. The developed films showed high areal capacitance, energy density, and power density, and demonstrated good capacitance retention after prolonged cycling. The fabricated micro supercapacitor device achieved a high areal capacitance, offering potential for industrial applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Md Wasi Ahmad, Surbhi Anand, Baban Dey, Duck-Joo Yang, Arup Choudhury
Summary: An advanced flexible hybrid electrode material composed of porous manganese molybdenum sulfide nanosheets supported on flexible carbon nanofiber mat has been prepared. The material exhibits high specific capacitance and good capacity retention, and shows excellent capacitive performance in asymmetric supercapacitor devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Fei Shang, Juwen Wei, Jiwen Xu, Guangzu Zhang, Ming Li, Ke Xu, Xiao Liu, Bo Li, Houbing Huang, Guohua Chen, Huarui Xu
Summary: This study demonstrates the significant potential of glass-ceramics in achieving high power and energy densities by optimizing the glass crystallization process. The fabricated glass-ceramics show both high power density and energy density, highlighting their importance in power electronics applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Physical
Zhazira Supiyeva, Xuexue Pan, Qamar Abbas
Summary: Nanoporous carbon with large surface area is the most famous carbon morphology used for supercapacitors electrodes. The alignment between the shape of the pores and the size of the solvated ions is necessary for rapid charge/discharge. However, the current focus on enhancing specific energy compromises power performance, and the size and shape of the carbon pores are critical for low-temperature performance.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
Liu Changshi
Summary: This article presents a basic physics model for extracting the potential-time characteristics of supercapacitors during charging and discharging, benefiting both designers and industry. Experimental validation confirms the effectiveness of the proposed method. Introducing energy-transfer efficiency helps dispel confusion in evaluating supercapacitor performance.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Materials Science, Ceramics
M. Sangeetha Vidhya, R. Yuvakkumar, G. Ravi, E. Sunil Babu, B. Saravanakumar, Omaima Nasif, Sulaiman Ali Alharbi, Dhayalan Velauthapillai
Summary: Metal selenides with varying weight percentages of Mn were synthesized and MnSe2-CoSe2 was identified as a novel energy storing material for supercapacitor applications, exhibiting improved electrochemical performance in an asymmetric configuration. Standard characterization studies confirmed the successful growth of the prepared metal selenide composite, with specific capacitance and excellent capacity retention even after 5000 cycles. Asymmetric configuration of Mn3 (0.15 wt %)//AC device showed significant power density values, indicating Mn3 (0.15 wt %) as a promising product.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Ritik Mohanty, Gayatri Swain, Kaushik Parida, Kulamani Parida
Summary: The rational design and development of nanostructured materials with unique structure and superior electrochemical activity are urgently needed for achieving ultra-high energy storage performance. In this study, activated fullerene decorated over zinc cobaltite (A-C-60-ZCO) was synthesized and its performance as a supercapacitor was evaluated. The synthesized nanocomposite exhibited enhanced specific capacitance and cyclic stability, attributed to the combination of A-C-60 and ZCO. The constructed flexible asymmetric supercapacitor device demonstrated high energy density and excellent cycling performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Sheng-yang Li, Hong-li Deng, Zong-lin Chu, Tao Wang, Lei Wang, Qiu-sheng Zhang, Jin-hui Cao, Ying-liang Cheng, Yang-qiang Huang, Jian Zhu, Bing-an Lu
Summary: The study designed cross-linked porous carbon nanofibers modified with oxygen-containing functional groups as anodes, which exhibited excellent discharge rates and cycling stability, and showed outstanding performance in potassium storage behavior, reversibility, and ion/electron transport.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Md Wasi Ahmad, Sushil Verma, Duck-Joo Yang, Mazhar Ul Islam, Arup Choudhury
Summary: The PmAPNFs/AgNPs nanocomposite was synthesized by chemical polymerization, demonstrating remarkable catalytic activity for glucose electro-oxidation and potential for highly sensitive, environment-friendly, and low-cost enzyme-free glucose sensor devices.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Surbhi Anand, Md Wasi Ahmad, Atiya Fatima, Anupam Kumar, Arvind Bharadwaj, Duck-Joo Yang, Arup Choudhury
Summary: Nickel disulfide nanoparticles anchored on carbon nanofibers were successfully fabricated, showing high specific capacitance and cycling stability. The electrode exhibited high energy density and excellent performance, suitable for flexible solid-state asymmetric supercapacitors.
Article
Chemistry, Physical
Md Wasi Ahmad, Surbhi Anand, Baban Dey, Duck-Joo Yang, Arup Choudhury
Summary: An advanced flexible hybrid electrode material composed of porous manganese molybdenum sulfide nanosheets supported on flexible carbon nanofiber mat has been prepared. The material exhibits high specific capacitance and good capacity retention, and shows excellent capacitive performance in asymmetric supercapacitor devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Baban Dey, Md Wasi Ahmad, Gautam Sarkhel, Duck-Joo Yang, Arup Choudhury
Summary: Flexible carbon nanofiber-supported nickel (pyridine-2,6-dicarboxylic acid)-MOFs (Ni(PDA) MOF@CNF) have been successfully prepared and used as binder-free electrodes for non-enzymatic glucose detection. The Ni(PDA) MOF with a porous structure promotes the interaction between active centers and glucose molecules, leading to enhanced electrocatalytic performance. The Ni(PDA) MOF@CNF electrode exhibits high sensitivity, low detection limit, wide linear range, and short response time, and shows excellent selectivity against interference from other bio-compounds. Furthermore, the electrode demonstrates excellent storage stability. The Ni(PDA) MOF@CNF electrode holds promise for glucose and lactate monitoring.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Analytical
Md. Wasi Ahmad, Baban Dey, Gautam Sarkhel, Duck-Joo Yang, Arup Choudhury
Summary: A novel free-standing biosensor electrode was fabricated for the selective detection of xanthine and uric acid in body fluids. The electrode showed low detection limits, good sensitivity, and satisfactory performance in monitoring xanthine and uric acid in blood serum and urine.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Md Wasi Ahmad, Arup Choudhury, Baban Dey, Surbhi Anand, Abdullah Khamis Ali Al Saidi, Gang Ho Lee, Duck-Joo Yang
Summary: Metal-organic-frameworks (MOFs) have been attracting attention as potential electrode materials for energy storage devices. In this study, niobium(pyridine-2,6-dicarboxylic acid) MOFs (Nb(PDCA)MOFs) were grown on the surface of electrospun porous carbon nanofiber (CNF) using an in-situ solvothermal process. The Nb(PDCA)MOF@CNF hybrid mats were characterized and used as working electrodes for supercapacitor applications. The electrochemical characteristics of the Nb(PDCA)MOF@CNF electrode were investigated in different electrolytes, and it was found that the KOH electrolyte delivered higher specific capacitance and the LiCl electrolyte showed more stable cycling performance. In addition, asymmetric supercapacitors (ASCs) were constructed and their electrochemical properties were studied in both electrolytes. The ASC with LiCl electrolyte exhibited superior energy density and cycling stability compared to the ASC with KOH electrolyte.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
S. K. Safdar Hossain, Baban Dey, Syed Sadiq Ali, Arup Choudhury
Summary: In this study, poly(m-aminophenol) (PmAP) was used as a conductive supercapacitor binder to replace poly(vinylene difluoride) (PVDF). The advantages of using PmAP include its solubility in organic solvents, film-forming properties, and involvement in pseudocapacitive reactions. A ternary nanocomposite film consisting of vanadium pentoxide (V2O5), amino-functionalized graphene (amino-FG) and PmAP was fabricated and evaluated in different electrolytes, KCl and Li2SO4. The V2O5/amino-FG/PmAP nanocomposite showed improved pseudocapacitive performance and a 5-fold increase in specific capacitance compared to the V2O5/amino-FG/PVDF nanocomposite. Solid-state asymmetric supercapacitors (ASCs) using V2O5/amino-FG/PmAP film as the positive electrode exhibited high energy density in Li2SO4 electrolyte.
Article
Polymer Science
Baban Dey, Gautam Sarkhel, Arup Choudhury
Summary: In this study, a self-standing nanocomposite mat combining copper (benzene 1,3,5-tricarboxylic acid) MOFs and carbon nanofibers was developed as an enzyme-free electrochemical sensor for detecting 4-nitrophenol. The hybrid mat exhibited a high specific surface area and functional active adsorption sites, allowing for fast transport of analyte molecules. The Cu(BTC)MOF@CNF/GCE electrode showed excellent sensitivity, selectivity, and cyclic stability, with a wide linear range and low detection limit for 4-nitrophenol determination.
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Surbhi Anand, Arup Choudhury
Summary: In this study, self-standing core-shell manganese molybdenum sulfide/carbon nanofiber (MnMoS4@CNF) hybrid mats were fabricated and evaluated for flexible supercapacitor applications. The hybrid mats exhibited specific capacitance of 1727.9 F g(-1) and good cycling stability. When used as electrode materials in a solid-state asymmetry supercapacitor (ASC) device, the nanostructured MnMoS4-decorated CNF hybrid mat showed outstanding electrochemical properties of energy density 73.7 Wh Kg(-1) and good cycling stability (88.3% after 6000 cycles). Therefore, the hybrid mat has potential for the fabrication of next-generation solid-state supercapacitors.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Analytical
Baban Dey, Md. Wasi Ahmad, Gautam Sarkhel, Gang Ho Lee, Arup Choudhury
Summary: In this paper, a selfstanding hybrid film based on niobium MOFs and carbon nanofibers was fabricated and utilized as an enzyme-free electrochemical sensor for simultaneous determination of uric acid, xanthine, and hypoxanthine. The hybrid film exhibited high sensitivity due to its high specific surface area and abundant active oxygen functionalities. The sensor showed a wide linear range, low detection limits, high selectivity, and good storage stability.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Physical
Md. Wasi Ahmad, Baban Dey, Asad Syed, Ali H. Bahkali, Meenakshi Verma, Duck-Joo Yang, Arup Choudhury
Summary: For the first time, free-standing orthorhombic Nb2O5-an-chored carbon nanofibers (Nb2O5 @CNFs) hybrid paper was prepared via in-situ solvothermal synthesis and subsequent pyrolysis process. The Nb(2)O(5) nanocrystals showed better stability in Li2SO4 electrolyte compared to H2SO4 electrolyte. The solid-state asymmetric supercapacitor (ASC) based on Nb2O5 @CNF paper and activated carbon (AC) electrodes demonstrated higher energy density in Li2SO4 electrolyte, with a wider working potential window.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Md. Wasi Ahmad, Baban Dey, Bo-Hye Kim, Gautam Sarkhel, Duck-Joo Yang, S. K. Safdar Hossain, Tahseen Kamal, Arup Choudhury
Summary: In this study, a self-standing copper-cobalt(2-methylimidazole) MOF anchored carbon nanofiber hybrid mat (Cu-Co(2-Meim)MOF@CNF) was prepared for the simultaneous detection and quantification of dopamine and tyramine in cheese and banana samples. The hybrid material exhibited excellent catalytic activity and electrochemical sensitivity towards dopamine and tyramine, with a broad linear range and low LOD. The sensor also demonstrated good anti-interference properties and long-term storage stability, making it suitable for food analysis and safety.
MICROCHEMICAL JOURNAL
(2023)
Meeting Abstract
Gastroenterology & Hepatology
Daryl Ramai, Anuraag Jena, Praveen Kumar, Antriksh Kumar, Chhagan Birda, Arup Choudhury, Naveen Kumar, Antonio Facciorusso, Jayanta Samanta
AMERICAN JOURNAL OF GASTROENTEROLOGY
(2022)
Meeting Abstract
Gastroenterology & Hepatology
Anurag Sachan, Arup Choudhury, Arpit Sasani, Harshal Mandavdhare
AMERICAN JOURNAL OF GASTROENTEROLOGY
(2022)
Meeting Abstract
Gastroenterology & Hepatology
Jayanta Samanta, Mayank Saini, Arup Choudhury, Ashutosh Yadav, Anudeep Jaffra, Rajeev Chauhan, Gaurav Muktesh, Pankaj Gupta, Vikas Gupta, Thakur Deen Yadav, Rakesh Kochhar