Article
Energy & Fuels
Syeda Ramsha Ali, Mian Muhammad Faisal, Soorya Pushpan, Nayely Pineda Aguilar, Karan Kishor Singh, Andrea Cerdan-Pasaran, Monica Maria Alcala Rodriguez, Eduardo M. Sanchez, A. Torres Castro, Shadai Lugo Loredo, K. C. Sanal
Summary: In this study, binary silver cobalt phosphate was synthesized and characterized for its properties as a high-performance supercapattery material. The material showed specific surface area and pore size when synthesized through different techniques. It exhibited remarkable electrochemical performance in a supercapattery device coupled with carbon nanotubes.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Valentin Sallaz, Sylvain Poulet, Jouhaiz Rouchou, Jean-Marc Boissel, Isabelle Chevalier, Frederic Voiron, Yann Lamy, Sami Oukassi
Summary: Nanometric amorphous TiO2 films with a thickness of 6-21 nm were studied in liquid- and solid-state electrolyte. The films showed a volumetric capacity that approached the theoretical value and displayed a constant initial amount of intercalated lithium ions after LiPON deposition. Additionally, a hybrid micro-supercapacitor was successfully fabricated with a TiO2 film, achieving an operating voltage window of 3 V and a high surface capacitance.
ACS APPLIED ENERGY MATERIALS
(2023)
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
Engineering, Environmental
Supriya J. Marje, Vinod V. Patil, Vinayak G. Parale, Hyung-Ho Park, Pragati A. Shinde, Jayavant L. Gunjakar, Chandrakant D. Lokhande, Umakant M. Patil
Summary: A rational combination of metal cations is necessary for improved electrochemical energy storage performance of bimetal compounds. Adjusting the ratio of nickel and cobalt can enhance the physicochemical properties and electrochemical capacitive performances of nickel cobalt phosphate materials. The synergy between nickel and cobalt species in the thin film electrodes contributes to the excellent electrochemical capacitive performance of hybrid asymmetric devices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Dhanaji B. Malavekar, Mayur A. Gaikwad, Komal D. Patil, Suyoung Jang, Sang Woo Park, Jin Hyeok Kim
Summary: A self-supported Cu3Se2@Cu electrode with excellent electrochemical stability and high rate capacity was developed by a self-growth technique. The Cu substrate was transformed into Cu(OH)2 and then Cu3Se2, forming a nanosheet morphology. The self-grown Cu3Se2 showed a specific capacitance of 928 F cm-2 and an energy density of 30.8 Wh kg-1 in an asymmetric supercapacitor device.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
De Wang, Yanjing Wang, Zhenyu Fu, Yanbin Xu, Li-Xia Yang, Feng Wang, Xiaoling Guo, Wenjuan Sun, Zheng-Long Yang
Summary: This study focuses on the design of cost-effective multifunctional electromaterials for supercapacitors and oxygen evolution reaction (OER) to enhance their functionalities in energy storage and conversion. Different ratios of cobalt and nickel phosphate composites were synthesized and systematically studied for their capacity and OER properties. The optimal electroconductibility, structural adjustment, electrochemical active sites, and activities for capacity and OER were obtained from the composites with different ratios of Co/Ni, showing potential for improving the practicality of asymmetric supercapacitors using Bi-based electromaterials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
O. C. Pore, A. V. Fulari, C. D. Chavare, D. S. Sawant, S. S. Patil, R. V. Shejwal, V. J. Fulari, G. M. Lohar
Summary: NiCo2O4 microflowers were prepared via hydrothermal method and the effect of precursor concentration on morphology and supercapacitor performance was investigated. XRD, FTIR, and XPS analysis confirmed the formation of NiCo2O4. FE-SEM observation showed the formation of microflower-like morphology. The optimized NiCo2O4 electrode with a molar ratio of Ni:Co = 1:2 exhibited a specific surface area of 147.3 m2 g-1. The supercapacitor study revealed that it achieved a maximum specific capacitance of 747.4 F g-1 at 5 mV s-1, with the highest energy density of 9.27 Wh kg-1 (@55.55 W kg-1) and 82.32% capacity retention over 5000 cycles.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Energy & Fuels
Arshid Numan, Javed Iqbal, Priyanka Jagadish, Syam G. Krishnan, Mohammad Khalid, Mehboobali Pannipara, S. Wageh
Summary: The latest technological developments have driven the research on efficient electrochemical energy storage devices. This study investigates the effect of phase transformation on the electrochemical performance of cobalt phosphate through sonochemical synthesis and calcination at different temperatures. The results show that cobalt phosphate calcined at 200 degrees C exhibits excellent electrochemical performance and is suitable for supercapattery fabrication.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Arshid Numan, Javed Iqbal, Priyanka Jagadish, Syam G. Krishnan, Mohammad Khalid, Mehboobali Pannipara, S. Wageh
Summary: This study synthesized cobalt phosphate (Co-3(PO4)(2)) through sonochemical synthesis followed by calcination at different temperatures, and evaluated the effect of phase transformation on its electrochemical performance. The Co-3(PO4)(2) sample calcined at 200 ?C demonstrated excellent electrochemical performance, making it suitable for supercapattery fabrication.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Bingbing Hu, Chuanlan Xu, Danmei Yu, Changguo Chen
Summary: The study demonstrates the fabrication of multiporous vanadyl phosphate/graphene (MP-VOPO4@rGO) as a thin film electrode material for supercapacitors, leading to enhanced energy storage performance, outstanding cycling stability, and rate capability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Energy & Fuels
Akanksha Agarwal, Sutripto Majumder, Babasaheb R. Sankapal
Summary: The study demonstrated the growth of copper phosphate microflowers on multi-walled carbon nanotubes through a chemical method, leading to the formation of the Cu2P2O7/MWCNT composite material with exceptional electrochemical performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Pranav K. Katkar, Navnath S. Padalkar, Amar M. Patil, Jae Ho Jeon, Zulfqar Ali Sheikh, Sahng-Kyoon Jerng, Hong Ryeol Na, Sunghun Lee, Seung-Hyun Chun
Summary: This study fabricated a binder-free, amorphous iron-doped nickel-cobalt phosphate (FexNiCo(PO4)2) thin film using a facile successive ionic layer adsorption and reaction (SILAR) method. The Fe doping concentration was investigated to understand its influence on the physico-chemical properties of the thin film. The resulting electrode exhibited nanoparticle-like morphology, which facilitated charge transfer and electrolyte diffusion. When used in an asymmetric solid-state supercapacitor (ASSS) with reduced graphene oxide (rGO) as the negative electrode, the F-NCP-3//rGO ASSS device demonstrated high specific capacitance, energy density, and cyclic stability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Xiaobo Chen, Wei Wang, Xin Pan, Chengqun Qiu
Summary: The hierarchical core-shell nanowire arrays of MnCo2O4@CuCo2O4/CC composite material exhibit excellent performance at 1 A g(-1) and can be used for the preparation of flexible all-solid-state asymmetric supercapacitors, showing good cycling stability and flexibility.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Engineering, Chemical
Chen-Hsueh Lin, Yu-Hua Xiao, Yan-Ting Lin, Ping-Hsuan Wu, Teng-Hao Chen, Wei-Cheng Li, Li-Hsiang Tseng, Po-Hsin Wang, Ten-Chin Wen
Summary: The use of hydroxyapatite induced by carboxylated chitosan as an active filler for pseudo solid-state supercapacitor can effectively reduce crystalline region, increase amorphous region, decrease internal resistance and heat dissipation, enhance segmental motion and ion migration, making it a novel filler for superior solid-state energy storage devices.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Chemistry, Applied
Ambar Ghadage, Pavan Kodam, Digambar Nadargi, K. P. Shinde, Imtiaz Mulla, J. S. Park, Sharad Suryavanshi
Summary: We report the development of highly optimized NiCo2O4 microflowers for supercapacitor applications. By carefully tuning various parameters, such as reaction temperature, reaction time, sintering temperature, and electrolyte concentration, we obtained an electrode material with high specific capacitance, energy density, and power density. The optimized sample displayed excellent electrochemical performance and retained 97.61% of its specific capacitance after 1000 cycles. The well-optimized NiCo2O4 microflowers show great promise for future industrial applications.
JOURNAL OF POROUS MATERIALS
(2022)
Article
Engineering, Environmental
Supriya J. Marje, Vinod V. Patil, Vinayak G. Parale, Hyung-Ho Park, Pragati A. Shinde, Jayavant L. Gunjakar, Chandrakant D. Lokhande, Umakant M. Patil
Summary: A rational combination of metal cations is necessary for improved electrochemical energy storage performance of bimetal compounds. Adjusting the ratio of nickel and cobalt can enhance the physicochemical properties and electrochemical capacitive performances of nickel cobalt phosphate materials. The synergy between nickel and cobalt species in the thin film electrodes contributes to the excellent electrochemical capacitive performance of hybrid asymmetric devices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Navnath S. Padalkar, Shrikant V. Sadavar, Rohini B. Shinde, Akash S. Patil, Umakant M. Patil, Dattatray S. Dhawale, Ravindra N. Bulakhe, Hyungsang Kim, Hyunsik Im, Ajayan Vinu, Chandrakant D. Lokhande, Jayavant L. Gunjakar
Summary: Layer-by-layer mesoporous nanohybrids of Ni-Cr-layered double hydroxide (Ni-Cr-LDH) and polyoxotungstate nanoclusters (Ni-Cr-LDH-POW) were successfully prepared via exfoliation reassembling strategy, showing excellent electrochemical functionality and advantages for hybrid supercapacitors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Rohini B. Shinde, Akash S. Patil, Shrikant Sadavar, Yogesh M. Chitare, Vikas V. Magdum, Navnath S. Padalkar, Umakant M. Patil, Saji T. Kochuveedu, Vinayak G. Parale, Hyung-Ho Park, Chandrakant D. Lokhande, Jayavant L. Gunjakar
Summary: This article reports the preparation of mesoporous layered nanohybrids of zinc chromium layered double hydroxide (Zn-Cr-LDH) and polyoxotungstate (POW) anions via an exfoliation-reassembling process. The Zn-Cr-WO nanohybrids displayed the highest selectivity towards Cl-2 and showed fastest response and recovery times of 5 and 133 s, respectively, at room temperature.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Navnath S. Padalkar, Shrikant Sadavar, Rohini B. Shinde, Akash S. Patil, Umakant M. Patil, Dattatray S. Dhawale, Habib M. Pathan, Shrikrishna D. Sartale, Vinayak G. Parale, Ajayan Vinu, Chandrakant D. Lokhande, Jayavant L. Gunjakar
Summary: The study demonstrates the use of exfoliation-restacking strategy to prepare Ni-Cr-LDH-POV nanohybrids for high-performance HSC, showing improved electrochemical performance and increased specific capacity. The resulting nanohybrid electrode exhibits high specific energy and power with excellent cyclic durability over 10,000 charge-discharge cycles, highlighting the potential for high-performance HSC.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Shrikant Sadavar, Navnath S. Padalkar, Rohini B. Shinde, Akash S. Patil, Umakant M. Patil, Vikas V. Magdum, Yogesh M. Chitare, Shirin P. Kulkarni, Ravindra N. Bulakhe, Vinayak G. Parale, Jayavant L. Gunjakar
Summary: By using two-dimensional graphene oxide nanosheets as a hybridization matrix, the electrode performance of layered double hydroxides can be improved. The study showed that the hybridized nanohybrids exhibited enhanced specific capacity, high electrical conductivity, and improved charge transfer kinetics. Aqueous and solid-state hybrid supercapacitors fabricated using the optimized nanohybrids demonstrated excellent specific capacitance, energy, and power performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Suraj A. Khalate, Sujit A. Kadam, Yuan-Ron Ma, Sachin B. Kulkarni, Vinayak G. Parale, Umakant M. Patil
Summary: This study reports the design of a nanostructured cobalt iron phosphate catalyst for robust electrochemical water splitting. The catalyst was synthesized using a hydrothermal method and deposited on low-cost stainless steel substrates. The composition ratio of cobalt and iron was found to affect the structural and electronic properties of the catalyst, with a 50:50 ratio of cobalt to iron showing the best performance for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The catalyst exhibited high activity and stability for overall water splitting, with small overpotentials and a required potential of 1.75 V after long-term catalysis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Amruta. D. Salunkhe, P. S. Pawar, P. K. Pagare, A. N. Kadam, P. K. Katkar, A. P. Torane
Summary: This study reports the synthesis of bimetallic oxide electrode materials derived from metal-organic frameworks (MOFs) for high-performance supercapacitor applications. The optimal NCM electrode annealed at 300 degrees C shows a maximum specific capacity of 188 mAh/g at 5 Ag-1 and excellent rate capability of 85.25% after 3000 cycles, surpassing its single-component counterpart. Furthermore, an asymmetric device (ASC) composed of NiCo2O4-MOF (positive electrode) and activated carbon (negative electrode) exhibits an excellent energy density of 84.26 Wh kg-1 at a power density of 1185 W kg-1 with 83.23% capacitance retention after 10,000 cycles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Energy & Fuels
Sajjad Hussain, Pranav K. Katkar, Dhanasekaran Vikraman, Zulfqar Ali Sheikh, Ghazanfar Nazir, Khalid Mujasam Batoo, Deok-Kee Kim, Hyun-Seok Kim, Jongwan Jung
Summary: In this work, MXene-assisted cobalt manganese phosphate thin films were prepared and used as polymer-free active materials for hybrid supercapacitors. The films exhibited enhanced specific capacitance and robust performance. Additionally, the MXene-CMP supercapacitors showed high energy density and better cyclability at a relatively high power density.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Energy & Fuels
Sambhaji S. Kumbhar, Shraddha B. Bhosale, Sachin S. Pujari, Vinod V. Patil, Nitish Kumar, Rahul R. Salunkhe, Chandrakant D. Lokhande, Umakant M. Patil
Summary: The surface area of cobalt vanadium oxide (CVO) material, which contributes to enhanced charge-storing ability, is controlled through changing growth dynamics. The resulting hydrous cobalt vanadium oxide nanoparticles thin film electrodes show altered surface area and high specific capacitance (Cs) of 793 F g(-1) at 0.5 A g(-1). Aqueous and solid-state hybrid supercapacitor devices constructed using CVO1:1 demonstrate high Cs and specific energy (SE), indicating their potential in electrochemical energy storage.
Review
Materials Science, Multidisciplinary
Vikas V. Magdum, Yogesh M. Chitare, Shirin P. Kulkarni, Prashant D. Sawant, Shraddha A. Pawar, Shweta V. Talekar, Chandrakant D. Lokhande, Umakant M. Patil, Sharad B. Patil, Jayavant L. Gunjakar
Summary: Among transition metal dichalcogenides, group VI layered metal (Mo and W) dichalcogenides (LMD) have gained research interest due to their unique layered structure and physicochemical properties. Solution-based deposition methods provide tunable properties for LMDs, allowing for diverse applications in energy storage, catalysis, optoelectronics, and more. Understanding the research progress and future scope of solution-based deposited group VI LMDs is crucial for their utilization in various fields.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Pratik Ashok Patil, Suraj Anandrao Khalate, Umakant Mahadev Patil, Rajendra Devidas Kale, Sachin Babasaheb Kulkarni
Summary: This study prepared sulfur-doped nickel oxide (S-NiO) honeycomb nanostructure electrodes via a cost-effective chemical bath method and explored their structural, morphological, and electrochemical properties. The S-NiO electrode exhibited excellent capacitance performance in aqueous electrolyte, while graphite as the negative electrode showed significant capacitance performance in a wide operating potential window. The AAHSc device demonstrated remarkable performance in terms of high energy density, power density, capacitance retention, and coulombic efficiency.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Pratik Ashok Patil, Suraj Anandrao Khalate, Umakant Mahadev Patil, Rajendra Devidas Kale, Sachin Babasaheb Kulkarni
Summary: In this study, sulfur-doped nickel oxide honeycomb nanostructure electrodes were prepared using a cost-effective chemical bath method and optimized through a Capping, Doping and Annealing (CDA) mechanism for improved electrochemical performance of hybrid supercapacitors. The research showed that the hybrid supercapacitors exhibited high specific capacitance, energy density, and excellent cycle stability.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Physical
Supriya J. Marje, Sachin S. Pujari, Suraj A. Khalate, Vinod V. Patil, Vinayak G. Parale, Taehee Kim, Hyung-Ho Park, Jayavant L. Gunjakar, Chandrakant D. Lokhande, Umakant M. Patil
Summary: The present study describes a facile and scalable synthetic approach for the binder-free synthesis of nickel-cobalt phosphate electrodes. The electrodes exhibit amorphous-to-crystalline structural conversion and microsphere-to-nanosheet-like morphological evolution. The optimal composition electrode demonstrates intercalation pseudocapacitive behavior and high specific capacitance. The synthesized electrodes are promising for practical applications in hybrid energy storage devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)