Article
Energy & Fuels
H. El Mouahid, Y. Bou-ouzoukni, G. Kaichouh, K. Bouziane, A. Zarrouk, A. Guessous
Summary: The MnPO4·H2O thin film for supercapacitor applications was electrodeposited on a platinum electrode and its morphology, microstructure, and electrochemical performance were investigated. The results revealed that the microsphere form of the film exhibited a high specific capacitance in the presence of 3 M NaOH electrolyte.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Yanan Zhang, Junlei Chen, Chenyang Su, Keyao Chen, Huabin Zhang, Yuhao Yang, Wenhuan Huang
Summary: This study developed a diffusion-controlled interface in the hierarchical structure of MOF/LDH electrode materials, significantly improving the rate capability and durability of LDH. The resulting electrode material exhibited remarkable specific capacity and energy density, along with excellent capacitance retention.
Article
Chemistry, Physical
Jinsong Li, Jing Ao, Chongxia Zhong, Tan Yin
Summary: Researchers have developed a TiO2-CNT supercapacitor with high energy density and specific capacitance. The device shows excellent cyclic stability and low leakage current, making it suitable for power supply of portable electronics in the future.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Nagesh Maile, S. K. Shinde, A. Fulari, D. S. Lee, V. J. Fulari
Summary: Different nanostructures of active material have a significant impact on supercapacitive performance, as shown by synthesizing MnCo2O4 nanoflakes through electrochemical methods. Varying deposition parameters resulted in structural evolution and confirmed the formation of spinel MnCo2O4. Optimized current density and deposition time led to improved supercapacitive performance, with a maximum specific capacitance of 52.6 F g(-1).
Article
Materials Science, Coatings & Films
Shuo Yu, Xinbo Xiong, Jun Ma, Haixia Qian
Summary: A novel route for preparation of NiCo-OH/CoS composite film as an electrode material for supercapacitors was developed, which delivers high specific capacitance and long cycling stability.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Electrochemistry
Thi Toan Nguyen, Debananda Mohapatra, Deivasigamani Ranjith Kumar, Marjorie Baynosa, Sumanta Sahoo, Jintae Lee, Jae-Jin Shim
Summary: Binary combinations of transition metal-layered double hydroxides (LDHs) have shown remarkable charge storage performance in supercapacitor applications, with the nickel-cobalt LDH (Ni-Co LDHs) nanosheets grown hierarchically on nickel foam demonstrating high specific capacity and electrochemical stability. The synergistic combination of Ni2+ and Co2+/Co3+ LDHs resulted in a specific capacity of 1757 C g(-1) (4392 F g(-1) at a current density of 1 mA cm(-2) (0.44 A g(-1)), showcasing the potential of this material for energy storage applications.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
N. C. Maile, S. K. Shinde, D. -y. Kim, K. C. Devarayapalli, Dae Sung Lee
Summary: In this study, nickel cobalt sulfide (Ni-Co-S) nanoflakes were successfully grown on 3D conductive nickel foam using binder-free electrochemical deposition. The resulting positive electrode demonstrated remarkable electrochemical storage performance, and when combined with activated carbon negative electrode, an aqueous hybrid supercapacitor with enhanced charge-discharge potential and remarkable stability was assembled. These findings highlight the potential of Ni-Co-S@NF for hybrid supercapacitor applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Multidisciplinary
Raito Nakamura, Hiroto Ohta, Yoshio Kobayashi, Yuya Haraguchi, Hiroko Aruga Katori, Jin Nakamura
Summary: The crystallographic, magnetic, and Eu-151 Mossbauer effect measurements were conducted on solid solution 122-type compounds, Eu(Co1-xNix)(2)P-2. A discontinuous isostructural phase transition from uncollapsed tetragonal (ucT) to collapsed tetragonal (cT) structure was observed around x = 0.3. In the cT region, Eu had an intermediate valence and exhibited paramagnetic behavior. The Co/Ni sublattice showed itinerant ferromagnetism and resulted in the loss of net magnetization due to the antiferromagnetic-like reorientation of the Co/Ni spins below 70 K.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2022)
Article
Energy & Fuels
Rajagopal Peri, Subramanian Balasubramanian, Muthuraaman Bhagavathiachari
Summary: This article reports on the state-of-the-art device innovation for advanced new in-plane supercapacitor devices using a layered stacked configuration. The device is fabricated by creating two regions with varying resistance over the plane and has flexible scalability. Various test devices were fabricated and tested to validate the new device geometry, and the results showed high areal capacitance using cyclic voltammetry and galvanostatic charge discharge techniques.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Qian Wang, Xiaofei Wang
Summary: This study presents a facile morphology engineering strategy to improve the supercapacitor performance of hollow NiCo-LDHs by using multifunctional microbial derived carbon (M-FC) as an inducer. The optimal NiCo-LDHs/M-FC electrode material shows a high specific capacitance (1877 F g-1 at 1 A g-1) and excellent rate ability (up to 10 A g-1). The assembled asymmetric supercapacitor device using NiCo-LDHs/M-FC positive electrode and activated carbon negative electrode exhibits an energy density of 106.7 Wh kg-1 at the power density of 1333.8 W kg-1 at 2 mA cm-2, and still retains 80 Wh kg-1 at the power density of 9931 W kg-1 at 15 mA cm-2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Hongbin Liu, Jianchen Li, Lin Ye, Lijun Zhao, Yongfu Zhu
Summary: The hierarchical electrode structure improves the performance of supercapacitive positive materials, demonstrating high rate capacities and long-term cyclic stability, suitable for assembling hybrid supercapacitors with excellent energy density and cycling stability. Additionally, the structure can trigger a blue light-emitting diode (LED), making it have a broad application prospect in energy storage.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Raito Nakamura, Azumi Ishita, Jin Nakamura, Hiroto Ohta, Yuya Haraguchi, Hiroko Aruga Katori, Hajime Ishikawa, Akira Matsuo, Koichi Kindo, Minoru Nohara, Akihiko Ikeda
Summary: The 122 compounds of the Eu(Co1-xNix)2P2 solid solution exhibit a valence transition between divalent and intermediate valence states at Eu, which is related to structural transition, magnetism and formation of P-P dimers. The effect of high magnetic fields on the Eu valence-fluctuating regime samples is investigated, revealing that magnetostriction and magnetization increase smoothly with the magnetic fields. The results indicate that the Eu valence changes manifest themselves in magnetization curves at high magnetic fields.
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
Engineering, Environmental
Tianbao Liu, Hanfeng Zhou, Guoxiong Zhong, Xiuling Yan, Xintai Su, Zhang Lin
Summary: The study demonstrates that electroplating sludges of specific composition can be used to synthesize layered double hydroxide materials for energy applications, showcasing good electrochemical energy storage performance. The unique composition and structure of the sludges contribute to their promising supercapacitor performance.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
S. O. Aisida, T. C. Chibueze, M. H. Alnasir, O. E. Oyewande, A. T. Raji, C. E. Ekumaj, I. Ahmad, T-K. Zhao, M. Maaza, F. I. Ezema
Summary: This study investigates the magnetic hyperthermia properties of pristine and Ni-doped cobalt ferrite nanoparticles under an external alternating magnetic field. Pristine and Ni-doped cobalt ferrite nanoparticles were synthesized and characterized. First-principles density functional theory calculations were used to simulate the different compositions of cobalt ferrite, and the results were consistent with experimental observations of structure, optical, and magnetic properties. These findings demonstrate the synthesis protocols and band-engineering routes to enhance the microstructural and magneto-optical properties of cobalt ferrite for magnetic hyperthermia applications.
SOLID STATE SCIENCES
(2023)
Article
Materials Science, Ceramics
Surendra K. Shinde, Hemraj M. Yadav, Gajanan S. Ghodake, Ajay D. Jagadale, Monali B. Jalak, Dae-Young Kim
Summary: In this study, a simple and cost-effective chemical route was employed to obtain a highly stable and efficient NiCuCo2S4 nanocomposite for supercapacitor applications. The composite exhibited a unique nanoflower-like nanostructure, high specific capacity, and superior cycling stability, showing potential for industrial applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Surendra K. Shinde, Swapnil S. Karade, Nagesh C. Maile, Hemraj M. Yadav, Gajanan S. Ghodake, Ajay D. Jagadale, Dae-Young Kim
Summary: Research has shown that CuCo2O4 nanomaterials synthesized using deep eutectic solvents demonstrate excellent performance in supercapacitor applications, with higher electrical behavior. CCO annealed at 250 degrees Celsius showed the best performance, exhibiting outstanding supercapacitive properties and cycling stability.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Ceramics
Surendra K. Shinde, Swapnil S. Karade, Nagesh C. Maile, Hemraj M. Yadav, Gajanan S. Ghodake, Ajay D. Jagadale, Monali B. Jalak, Dae Sung Lee, Dae-Young Kim
Summary: In this research, a novel method was developed to synthesize ternary NiCo2O4 compounds using deep eutectic solvents, leading to improved pseudocapacitive performance. The NiCo2O4/NCNTs composite displayed enhanced specific capacity and electrode stability, making it suitable for use in hybrid supercapacitors with high energy and power densities. The unique three-dimensional nanostructures of NiCo2O4 offer potential for applications in flexible electronic devices.
CERAMICS INTERNATIONAL
(2021)
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
Materials Science, Ceramics
Surendra K. Shinde, Deepak P. Dubal, Hemraj M. Yadav, Ajay D. Jagadale, Nagesh Maile, Swapnil S. Karade, Dae-Sung Lee, Dae-Young Kim
Summary: A novel hybrid material based on NiCo2S4 (NCS), halloysite nanotubes (HNTs), and carbon has been developed for supercapacitor electrodes, showing excellent performance and hydrogen evolution reaction activity.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Wasinee Pholauyphon, Ravindra N. Bulakhe, Jedsada Manyam, Insik In, Peerasak Paoprasert
Summary: This study demonstrates the use of carbon dots as versatile additives for enhancing the performance of supercapacitors. By adding carbon dots to both the TiO2 electrode and Na2SO4 electrolyte, the specific capacitance of the supercapacitor was significantly improved, leading to a total improvement of 797%. The carbon dots also improved the rate capability and retention of specific capacitance after cycles.
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, Physical
Shrikant V. Sadavar, Navnath S. Padalkar, Rohini B. Shinde, Akash S. Patil, Umakant M. Patil, Vikas V. Magdum, Yogesh M. Chitare, Shirin P. Kulkarni, Shital B. Kale, Ravindra N. Bulakhe, Deu S. Bhange, Saji T. Kochuveedu, Jayavant L. Gunjakar
Summary: In this study, porous layer-by-layer self-assembled nanohybrids of Co-Cr-LDH/CCW were prepared using a lattice engineering exfoliation-reassembling route, exhibiting exceptional electrochemical activity. The AHAS and ASHAS devices fabricated using these nanohybrids demonstrated high specific capacitance and excellent cycle stability.
ENERGY STORAGE MATERIALS
(2022)
Article
Energy & Fuels
Surendra K. Shinde, Swapnil S. Karade, Nagesh C. Maile, Hemraj M. Yadav, Ajay D. Jagadale, Monali B. Jalak, Dae-Young Kim
Summary: Researchers successfully synthesized nanoparticles decorated ultrathin Ni1-xMnxCo2O4 nanoflakes with a unique nanostructure featuring high porosity and specific surface area by tuning the molar ratio between Mn and Ni. These materials show great potential in applications such as supercapacitors and overall water splitting.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Seshendra Reddy Ch, Ravindra N. Bulakhe, Jeevan Kumar Reddy Modigunta, G. Murali, A. Reddy Sivasankar, Jiyeong Kim, Eunji Park, Byungin Kang, Insik In, Arup Kumer Roy, Kiruthiga Ramakrishnan, Udayabhaskar Rednam
Summary: Tin oxide and nitrogen-doped graphene quantum dots composite nanotubes were successfully fabricated using electrospinning and annealing methods, and applied as electrodes in supercapacitors. The composite exhibited excellent electrochemical performance, including high capacity retention and maximum specific capacitance, in 2M KOH electrolyte at different scan rates and current densities.
JOURNAL OF NANOMATERIALS
(2022)
Article
Chemistry, Physical
S. K. Shinde, Monali B. Jalak, Swapnil S. Karade, Sutripto Majumder, Mohaseen S. Tamboli, Nguyen Tam Nguyen Truong, Nagesh C. Maile, Dae-Young Kim, Ajay D. Jagadale, H. M. Yadav
Summary: In this study, highly porous one-dimensional nanobelt-like cobalt phosphate materials were synthesized for supercapacitor applications. The synthesized Co2P2O7 exhibited excellent physicochemical and electrochemical properties, with the nanobelt-like nanostructures providing improved ion transfer and cycling stability. The Co2P2O7 electrode deposited at 150 degrees C demonstrated the highest specific capacitance and an asymmetric hybrid Co2P2O7//AC supercapacitor device showed high energy and power density. Overall, the one-dimensional nanobelt-like Co2P2O7 material is a promising option for electrochemical energy storage.
Article
Chemistry, Physical
Ravindra N. Bulakhe, Anh Phan Nguyen, Changyoung Ryu, Ji Man Kim, Jung Bin In
Summary: This study describes a facile and inexpensive chemical method for the single-step synthesis of mesoporous layered nickel-chromium-sulfide (NCS) and its hybridization with single-layered graphene oxide (GO). The resulting hybrid material, NCSG, shows improved physicochemical and electrochemical properties, with a significantly higher specific surface area and pore diameter compared to bare NCS. The optimized NCSG exhibits three-fold superior specific capacity over NCS at a current density of 2 A/g. The fabricated hybrid supercapacitor (HSC) achieves outstanding energy and power densities, with a 4% decrease observed in cyclic stability over 5000 charge-discharge cycles.
Article
Energy & Fuels
B. Thanigai Vetrikarasan, Abhijith R. Nair, T. Karthick, Surendra K. Shinde, Dae-Young Kim, Shilpa N. Sawant, Ajay D. Jagadale
Summary: In this study, A-MnO2 nanoplates were synthesized through co-precipitation and used for flexible asymmetric supercapacitors. The structural, morphological, and electrochemical properties of A-MnO2 were investigated and its optical and electronic properties were studied. The synthesized A-MnO2 showed a specific capacitance of 288.5 F g-1. Various symmetric and asymmetric supercapacitors were fabricated and compared, and the asymmetric A-MnO2//Ti3C2TxMXene supercapacitor exhibited a maximum energy density of 15.5 Wh kg-1 and 86.3% of capacitive retention after 5000 cycles. Furthermore, a flexible A-MnO2//Ti3C2Tx asymmetric supercapacitor was fabricated with high areal energy density of 39.9μWh cm-2 at a power density of 8586μW cm-2. Overall, the co-precipitation method for preparing A-MnO2 shows promise in flexible energy storage applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Yelim Kwon, Yun Seok Choi, Qian Wang, Lianghao Song, Hansol Kim, Ravindra N. Bulakhe, Ji Man Kim
Summary: This study investigates the use of ordered mesoporous carbon (OMC) as a dual-functional interlayer to improve the performance of lithium-sulfur (Li-S) batteries. The OMC interlayer acts as both a polysulfide adsorbent and an additional reaction site, resulting in enhanced electrochemical performance. The findings highlight the potential of using OMC for fabricating high-performance Li-S batteries.
ACS APPLIED ENERGY MATERIALS
(2023)
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: This study demonstrates the use of conductive graphene oxide as an efficient hybridization matrix to improve the electrode performance of LDHs, leading to enhanced specific capacity and high-rate characteristics in aqueous and all-solid-state hybrid supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2022)
