Article
Chemistry, Physical
Sangeeta Adhikari, Gi-Hyeok Noh, Do-Heyoung Kim
Summary: Core-shell designed electrode architectures with favorable material components, specifically FeCo2O4@Ni(OH)2, were successfully grown on a Ni-foam substrate. These core-shell arrays exhibited improved electrochemical performance, with a high specific capacitance of 1944 F g-1 and better performance than individual FeCo2O4 and Ni(OH)2. The improved performance was attributed to the synergistic effects of the core-shell array architectures and enhanced electrical conductivity through electroactive sites.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Jeong-Hyun Eum, Debasish Mandal, Hansung Kim
Summary: Highly porous 2D ZnCo2O4 nanoflakes of cubic crystalline structure were synthesized for the first time using an ionothermal method with a deep eutectic solvent. The material showed excellent electrochemical performance, including high specific capacity and rate capability, as well as long cyclic stability in an asymmetric supercapacitor system.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Ceramics
A. M. Teli, S. A. Beknalkar, S. M. Mane, T. S. Bhat, B. B. Kamble, S. B. Patil, S. B. Sadale, J. C. Shin
Summary: Transition metal chalcogenides, specifically molybdenum disulfide (MoS2), have attracted attention in the field of energy storage due to their unique properties. In this study, MoS2 was successfully deposited on Ni foam using a one-step electrode-position method, resulting in an interconnected crumpled-nanoflake structure. The MoS2 electrodes exhibited excellent electrochemical performance, with a maximum areal capacitance of 416.9 mFcm?2. An asymmetric device constructed with MoS2 and activated carbon as electrodes showed promising energy storage capabilities, with an areal capacitance of 277.3 mFcm(-2) and energy density of 0.15 mWhcm(-2) at 5.33 mWcm(-2) power density. Furthermore, the device demonstrated high cyclability and coulombic efficiency, making MoS2 and MoS2//AC devices potential candidates for emerging energy storage applications.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Tianfu Huang, Zehai Qiu, Zhibiao Hu, Zhusen Zhang
Summary: Transition metal oxide FeCo2O4 nanomaterials with a porous chopsticks-like microstructure show high specific capacitance and good cycling stability, indicating potential applications for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Ravindra N. Bulakhe, Akram Alfantazi, Yong Rok Lee, Moonyong Lee, Jae-Jin Shim
Summary: This work presents the deposition of Cu2S nanoflakes onto rGO on 3D nickel foam using inexpensive chemical methods. The resulting nanohybrid structure exhibited excellent surface area, good electrical conductivity, and outstanding cycling stability, with a significantly higher specific capacitance. The asymmetric supercapacitor device showed high specific capacitance, energy density, and power density.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Review
Chemistry, Analytical
Ranjith Balu, Saravanan Krishna Sundaram, Sundaramurthy Rameshkumar, Karuppannan Aravinth, Perumalsamy Ramasamy
Summary: This study reports the synthesis and characterization of Cu2WS4 nanoflakes. The nanoflakes showed excellent electrochemical performances, making them a promising negative electrode material for energy storage applications. The study also proposed a novel combination of all-solid-state supercapacitor using Cu2WS4 nanoflakes as cathode and activated carbon as the anode, achieving high energy density and power density with capacitive retention over 94% after 5000 cycles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Anit Joseph, Sneha Perikkathra, Tiju Thomas
Summary: Enhancing the performance and durability of metal catalysts through the use of nanostructured non-metallic materials is an active and exciting area of research. The 2D CeO2 nanoflakes were characterized and found to have a high specific capacitance and a modest surface area. Assembled into an asymmetric supercapacitor device, the CeO2 nanoflakes exhibited good performance and retained 83% capacitance after 1000 cycles. This study demonstrates the promising potential of CeO2 as an electrode material for energy storage applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Xiao Mi, Zhao Tingwu, Lin Chengyong, Niu Xu
Summary: In this study, self-growing FeCo2O4@CoSe/NF layered core-shell composite materials were prepared using hydrothermal method and electrodeposition method. The CoSe shell effectively increased the conductivity of FeCo2O4 core, leading to synergistic effects that improved the overall electrochemical performance and stability of the material at high cycling numbers. The FeCo2O4@CoSe/NF exhibited a high specific capacity and capacity retention rate, while the assembled asymmetric capacitor (ASC) showed a high energy density under certain power densities.
Article
Chemistry, Physical
Shuangshuang Li, Huiqing Fan, Yuying Yang, Yanlei Bi, Guangwu Wen, Lu-Chang Qin
Summary: In this study, a efficient and simple method was proposed to directly grow self-supporting hierarchical porous cactus-like ZnCo2O4 material on Ni foam using a hydrothermal method with post-calcination treatment. The prepared cactus-like ZnCo2O4 film electrode exhibited excellent electrochemical performance and demonstrated promising potential for energy storage application.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Jih-Hsing Chang, Ashalata Puhan, Cheng-Di Cheng-Di Dong, Shan-Yi Shen, Narendhar Chandrasekar, Mohanraj Kumar
Summary: The study prepared Pd-Fe2O3 nanoflakes nanocomposite through a simple redox reaction under hydrothermal conditions, showing excellent specific capacitance and stability in acidic electrolyte, demonstrating potential applications in supercapacitors.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Energy & Fuels
Zheng-Hua He, Jian-Fei Gao, Ling-Bin Kong
Summary: This research successfully synthesized a lithium-ion battery-supercapacitor hybrid device (BSHD) with extraordinary cycle stability by designing the inverse spinel oxide iron gallium oxide (FeGa2O4, FGO) material. The assembled BSHD exhibits high energy density, high power density, and long cycle life in a wide working voltage range.
Article
Chemistry, Physical
Shahed Hassanpoor, Elham Tamri
Summary: In this study, fine FeS2 nanoparticles were synthesized using a novel and efficient method. The FeS2-SRGO nanocomposite was prepared by reducing graphene oxide and sulfur-doping simultaneously. The electrode coated with FeS2-SRGO showed excellent supercapacitor performance, with a specific capacity of 277 F/g in 1 M H2SO4 electrolyte.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Meenu Sharma, Anurag Gaur
Summary: The rGO@ZnCo2O4 microspheres electrode synthesized through a hydrothermal process demonstrates high specific capacity and excellent cycling stability, attributed to the synergistic effects of rGO and ZnCo2O4, as well as the porous morphology of the microspheres.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Energy & Fuels
Lei Yuan, Yu Liu, Na Xin, Ren He
Summary: With the increasing energy crisis and environmental problems, supercapacitors have gained popularity as energy storage devices due to their excellent performance. This study presents a novel composite material, ZCG-2, with a hierarchical structure synthesized from different structures of ZnCo2O4 material, which improves the capacitance performance. The composite material exhibits high specific capacitance and specific energy, demonstrating potential applications in electrochemical energy storage.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Awais Ali, Iqra Hameed, Muhammad Ammar, Rana Mujahid, Shahid Mirza
Summary: The 3D hierarchical nanostructure of Zn-Ni-Co oxide electrode material on Ni foam demonstrates excellent dimensional stability and structural features, high specific capacitance, and low contact resistance, making it a promising candidate for binder-free electrode materials. The asymmetric supercapacitor device, using activated carbon as the negative electrode and Zn-Ni-Co oxide as the positive electrode, shows high capacitance retention, specific power, and energy after 10,000 GCD cycles.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Gokul P. Kamble, Akash S. Rasal, Jia-Yaw Chang, Sanjay S. Kolekar, Shivaji N. Tayade, Anil Ghule
Summary: The core-shell structured electrode material ZnCo2O4@NiO, fabricated through a cost-effective method, shows high specific capacitance and cycling stability in a supercapacitor, indicating its promising application in energy storage devices.
NANOSCALE ADVANCES
(2022)
Article
Energy & Fuels
Pramod Kumbhar, Suryakant Patil, Dattatray Narale, Ashish Sartape, Chitra Jambhale, Jin-Hyeok Kim, Sanjay Kolekar
Summary: In this study, waste biomass-based partly graphitized activated carbon (SSWPAC) derived from Samanea saman waste pods was successfully synthesized and utilized for the removal of hazardous dye rhodamine B (Rh B) and metal Cr(VI) from aqueous solutions. SSWPAC exhibited a high surface area and demonstrated excellent removal efficiency for both pollutants under certain conditions. This research provides important insights for the treatment of these pollutants in the environment.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Physical
Seema A. Mane, Anil A. Kashale, Gokul P. Kamble, Sanjay S. Kolekar, Suprimkumar D. Dhas, Meenal D. Patil, Annasaheb Moholkar, Bhaskar R. Sathe, Anil Ghule
Summary: This study presents a facile, economic, efficient, and binder-free strategy to synthesize flower-like Bi2O3 thin films on flexible stainless steel mesh substrates using rotational chemical bath deposition. The Bi2O3/FSSM electrode exhibits high specific capacitance, remarkable cycle stability, and high energy density, making it a promising candidate for electrochemical energy storage devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Rutuja A. Chavan, Gokul P. Kamble, Sarika B. Dhavale, Akash S. Rasal, Sanjay S. Kolekar, Jia-Yaw Chang, Anil Vithal Ghule
Summary: MXene composites with different metal oxides have shown good electrochemical performance and hinder restacking of MXene. In this study, nickel oxide@MXene (NO@MXene) composites with varying compositions were synthesized and used as an anode for a supercapacitor. The 15% NO@MXene composite electrode demonstrated the highest capacitance, and an all-solid-state asymmetric supercapacitor with 15% NO@MXene as the anode displayed good cyclic stability and high energy and power densities.
Article
Engineering, Electrical & Electronic
Seema A. A. Mane, Desta Ulisso, Anil A. A. Kashale, Suprimkumar D. D. Dhas, Annasaheb V. V. Moholkar, Anil V. V. Ghule
Summary: The role of polyethylene glycol (PEG) on the crystal structure, morphology, and electrochemical behavior of V2O5 nanoparticles was investigated in this study. PEG was found to be an effective modifier for the synthesis of V2O5 nanofibers, acting as a structure directing agent and a precursor for forming a carbon matrix. The V2O5-PEG/FSSM exhibited a specific capacitance of 520.3 F g(-1) and excellent cyclic stability, outperforming the bare V2O5. The assembled V2O5-PEG/FSSM-based symmetric capacitor device delivered a specific capacitance of 81.7 F g(-1) with an energy density of 16.3Wh kg(-1), attributed to the intercalated PEG molecules providing a high specific surface area and interconnected nanofiber network-like morphology.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Sachin B. Shinde, Sneha R. Bhosale, Nagesh B. Birajdar, Anil H. Gore, Govind B. Kolekar, Sanjay S. Kolekar, Ajinkya D. Mandake, Prashant V. Anbhule
Summary: In this article, calcium sulfate nanoparticles (CaSO4 NPs) were synthesized from waste chalk powder using the calcination method. These NPs were used to construct a photocatalyst called mpg-C3N4-CaSO4. Various characterization techniques were used to confirm the synthesized materials. The efficiency of the photocatalytic degradation of methylene blue (MB) using the optimized mpg-C3N4-CaSO4-2 composite reached 91% within 90 min under UV-vis light and 95% within 120 min under sunlight, showing excellent photostability and recyclability.
Article
Nanoscience & Nanotechnology
Rutuja A. Chavan, Anil Vithal Ghule
Summary: This study investigates the use of binders and solvents in MXene electrode fabrication and their impact on supercapacitive performance. MXene electrodes were screen printed on a flexible stainless steel mesh substrate using a straightforward and cost-effective approach. The influence of binders and solvents on electrochemical performance was examined by comparing electrodes with and without a binder. The use of a binder resulted in altered electrochemical performance, with the MX-E@FSSM electrode showing the best performance. Furthermore, an MnO2/MXene//MX-E asymmetric supercapacitor demonstrated promising performance with a specific capacitance of 252 F g(-1) at an energy density of 35.2 Wh kg(-1).
Review
Energy & Fuels
Rakhee Bhosale, Sneha Bhosale, Madagonda Vadiyar, Chitra Jambhale, Kyung-Wan Nam, Sanjay Kolekar
Summary: As porous coordination organic polymers, metal-organic frameworks (MOFs) and their derived materials and composites have unique chemistries and properties that make them attractive for energy storage applications, specifically for supercapacitors. This review discusses recent progress in designing and utilizing pristine MOFs, MOF-derived nanomaterials, and MOF-based composites for supercapacitors. It also highlights the role of electrolytes in the structure-property correlation and presents the obstacles and prospects for future MOF-related research and applications.
Article
Chemistry, Multidisciplinary
Prashant D. Sarvalkar, Apurva S. Vadanagekar, Omkar S. Karvekar, Pramod D. Kumbhar, Santosh S. Terdale, Avinash Singh Thounaojam, Sanjay S. Kolekar, Rajiv S. Vhatkar, Pramod S. Patil, Kiran Kumar K. Sharma
Summary: The adsorption isotherms of azo dyes on a newly synthesized titania-doped silica aerogel are compared to silica aerogels and activated charcoal. The study evaluates the effect of Ti4+ doping in a silica aerogel on the mesoporous structure and the adsorption capacity of methylene blue and crystal violet dyes. The adsorption isotherms follow the Langmuir adsorption isotherm, with the TdS aerogel showing a higher adsorption capacity compared to silica aerogel and activated charcoal.
Article
Chemistry, Multidisciplinary
Rakhee Bhosale, Sneha Bhosale, Dattatray Narale, Chitra Jambhale, Sanjay Kolekar
Summary: Two-dimensional (2D) metal-organic framework (MOF) architectures with high surface-to-volume ratio and large surface area have been developed as electrode materials for supercapacitors. The trimetallic MOFs synthesized using a one-step reflux condensation method show excellent cyclic stability and electrochemical performance.
Article
Chemistry, Multidisciplinary
Rachana Ghaware, Prashant Sanadi, Dattatray Narale, Rakhee Bhosale, Komal Patil, Jin H. H. Kim, Sanjay Kolekar
Summary: BiVO4 is synthesized without any surfactant using bismuth nitrate pentahydrate and ammonium metavanadate through a simple reflux condensation method. The effect of different ratios of bismuth nitrate pentahydrate to ammonium metavanadate (1:1, 1:2, 2:1) on the structure and activity of BiVO4 is investigated. Various analytical techniques including XRD, BET, FE-SEM, and XPS are used to analyze the obtained BiVO4 nanomaterial, which shows spherical morphology, high porosity, and monoclinic scheelite crystalline phase. The nanoparticles prepared with a 1:1 ratio exhibit smaller size and higher photocatalytic efficiency in the degradation of crystal violet dye (CV) under visible light irradiation. Additionally, the prepared nanoparticles demonstrate good antibacterial properties.
Article
Energy & Fuels
Dattatray K. Narale, Pramod D. Kumbhar, Rakhee R. Bhosale, Rachana C. Ghaware, Komal D. Patil, Jin H. Kim, Sanjay S. Kolekar
Summary: In recent years, there has been a growing interest among researchers in exploiting stable and high-performance electrode materials for clean, efficient, and sustainable energy storage devices. This study successfully synthesized NiFe2O4@CoFe2O4 core-shell nanoflake arrays on a flexible stainless steel mesh using a simple and low-cost two-step chemical bath deposition method. The resulting electrode exhibited a quick electron/ion transfer and higher electrical conductivity due to the synergistic influence between NiFe2O4 and CoFe2O4 nanoflakes. The NiFe2O4@CoFe2O4 core-shell nanoflake array electrode demonstrated superior electrochemical performance, including a capacitance of 1459.4 F g-1 at a current density of 4 mA cm-2, excellent cycling stability with 85% retention over 5000 cycles at a high current density of 20 mA cm-2, and a high energy density of 21.15 W h kg-1 at a power density of 0.466 k W kg-1. The unique hierarchical structure of this novel integrated nanoarchitecture enables efficient ion and electron transport, a high number of active sites, and a synergistic impact, making it a promising candidate for improved electrodes in high-performance supercapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Rutuja A. Chavan, Desta M. Ulisso, Akash S. Rasal, Jia Yaw Chang, Anil Vithal Ghule
Summary: Researchers propose a facile and scalable approach to fabricate ternary composite electrodes composed of MXene and metal oxides (MnO2 and CuO) for high-performing supercapacitors.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Rakhee Bhosale, Sneha Bhosale, Pramod Kumbhar, Dattatray Narale, Rachana Ghaware, Chitra Jambhale, Sanjay Kolekar
Summary: Metal-organic frameworks (MOFs), especially Ni-MOF, have been synthesized using a reflux condensation technique and characterized using various techniques. The rod-like morphology of Ni-MOF provides pathways for electrolyte ion penetration and an enlarged contact area with the active material, resulting in excellent supercapacitor performance. The Ni-MOF material exhibited a specific surface area of 398.4 m²/g and had a high specific capacitance and capacity retention over multiple cycles.
NEW JOURNAL OF CHEMISTRY
(2023)
