Article
Chemistry, Multidisciplinary
Xusen Li, Liwei Lin, Tianyu Chen, Sumin Park, Minjun Bae, Youngseul Cho, Jeongyeon Lee, Wang Zhang, Yuanzhe Piao, Guowang Diao
Summary: In this study, a rapid and simple method for preparing porous carbon (PC) using microwave irradiation was proposed. Oxygen-rich PC was synthesized by irradiating potassium citrate and ZnCl2 in air. The use of ZnCl2 allowed for microwave absorption through dipole rotation, converting heat energy in the reaction system. Potassium salt etching was found to enhance the porosity of the PC. The resulting PC had a large specific surface area (902 m2/g) and exhibited significant specific capacitance (380 F/g) in the three-electrode system at 1 A/g. The assembled supercapacitor device based on PC-375W-0.4 showed energy and power densities of 32.7 W·h·kg-1 and 0.65 kW·kg-1, respectively, at a current density of 1 A/g. Even after 5000 cycles at a current density of 5 A/g, the PC retained 94% of its initial capacitance, demonstrating excellent cycle life.
Article
Materials Science, Ceramics
Kourosh Adib, Esmail Sohouli, Masoumeh Ghalkhani, Hamid Reza Naderi, Zolfaghar Rezvani, Mehdi Rahimi-Nasrabadi
Summary: The goal of this research was to synthesize an Ag2WO4/RGO nanocomposite through sonochemical method and investigate its electrochemical performance for supercapacitor electrodes. The Ag2WO4/RGO-based electrodes exhibited high specific capacitance, energy density, excellent cyclic stability, and mechanical stability, making it a promising material for supercapacitor construction.
CERAMICS INTERNATIONAL
(2021)
Review
Chemistry, Multidisciplinary
Narek Sisakyan, Gayane Chilingaryan, Aram Manukyan, Alexander S. Mukasyan
Summary: Supercapacitors are energy storage devices that have the advantage of rapid energy storage and release compared to traditional batteries. Combustion synthesis is a powerful method for creating various nanostructured materials, including those commonly used for supercapacitor electrodes. The flexibility of solution combustion synthesis allows for tuning the properties of the materials, and the resulting nanostructured materials with large specific surface area enhance the performance of supercapacitor electrodes.
Review
Chemistry, Multidisciplinary
Sylwia Glowniak, Barbara Szczesniak, Jerzy Choma, Mietek Jaroniec
Summary: Microwave-assisted synthesis provides a simple, fast, efficient, and economic way to obtain a variety of advanced nanoporous materials with high specific surface areas and potential applications in various fields such as gas adsorption, water treatment, catalysis, energy storage, and drug delivery.
ADVANCED MATERIALS
(2021)
Article
Energy & Fuels
Huihui Wang
Summary: A novel silver fungus-like CoS with multiple electrochemically active sites was successfully fabricated using a simple mixed solvent thermal method. The material demonstrated ideal electrochemical performance for supercapacitors, with outstanding capacitive performance and high specific energy achieved in an assembled asymmetric supercapacitor. The study suggests that the mixed solvothermal method can potentially be extended to other transition metal sulfide-based electrode materials for high-performance supercapacitors.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Materials Science, Ceramics
Yashar Behnamian, Ermia Aghaie, Diana Serate, Zachary Tolentino, Hamid Niazi, Amir Mostafaei
Summary: A novel copper aluminate-silver nanocomposite was successfully synthesized using an organic acid-assisted sol-gel method, and its photocatalytic performance for the degradation of methylene blue under visible light illumination was investigated. The results showed that increasing the silver concentration resulted in larger crystallite size and average particle size. The nanocomposite with 3 wt% Ag exhibited the highest photocatalytic yield and structural stability.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Paper & Wood
David Patch, Natalia O'Connor, Debora Meira, Jennifer Scott, Iris Koch, Kela Weber
Summary: By comparing eight different methods, researchers have identified the most cost-effective approach for synthesizing silver, copper, and silver/copper bimetallic treated textiles. The results showed that the use of sodium bicarbonate and sodium hydroxide as reagents produced the highest amounts of silver on the textile, while sodium hydroxide and sodium hydroxide/ammonium hydroxide resulted in the highest amounts of copper on the textile. These methods can facilitate the efficient manufacturing of antibacterial and antiviral textiles, or the development of multifunctionalized smart textiles.
Article
Biochemistry & Molecular Biology
Lucas T. Teixeira, Scarllet L. S. de Lima, Taissa F. Rosado, Liying Liu, Hector A. Vitorino, Clenilton C. dos Santos, Jhonatam P. Mendonca, Marco A. S. Garcia, Rogerio N. C. Siqueira, Anderson G. M. da Silva
Summary: Spinel ferrites nanocorals were prepared via a green method mediated by cellulose nanofibers and exhibited excellent performance as electrodes in supercapacitors. Compared to Fe2O3 and ZnO counterparts, the spinel Zn-ferrites nanocorals supercapacitor showed a higher maximum specific capacitance. The unique crystal structure and electronic configuration of spinel Zn-ferrites were believed to contribute to their superior performance, which could be explored for clean energy storage devices.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Environmental
Is Fatimah, Putwi Widya Citradewi, Ganjar Fadillah, Imam Sahroni, Gani Purwiandono, Ruey-aan Dong
Summary: Magnetic montmorillonite nanocomposites of Fe3O4/Mt were synthesized with good Cu(II) adsorption capacity and easy separation. The adsorption kinetics followed a pseudo-second-order kinetic model, and the nanocomposites demonstrated chemical stability with maintained adsorption capacity after five cycles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Mingliang Guo, Zijian Huang, Binbin Liu, Yanji Bao, Xiaohong Wang, Kexi Zhang, Qiang Wu, Yang Cao, Jinchun Tu, Lei Ding
Summary: The advanced structural design of Ni3S2/NiCo2S4/NF electrodes via a simple microwave-assisted method shows high specific capacitance, remarkable rate capacity, and cycling stability, making them promising anode materials in asymmetric SCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Physical
Yiyang Liu, Zhen Ge, Zhongjun Li, Yongsheng Chen
Summary: This review summarizes a high-power technology that can synthesize nanomaterials in seconds, covering history, equipment setup, growth mechanisms, applications, and comparison of key apparatus to achieve rapid, controllable, inexpensive, and safe nanoparticle synthesis.
Article
Materials Science, Multidisciplinary
Rajagopalan Krishnan, Sini Nanadath Shibu, Dirk Poelman, Ankush Kumar Badyal, Arup K. Kunti, Hendrik C. Swart, Samvit G. Menon
Summary: This review provides a comprehensive discussion on the microwave-assisted synthesis of various materials for photoluminescence and photocatalytic applications. It emphasizes on the optical and photocatalytic performance, as well as the reaction parameters and structural properties obtained during the synthesis process.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Abdelkadir Mahieddine, Leila Adnane-Amara, Noureddine Gabouze, Ahmed Addad, Abir Swaidan, Rabah Boukherroub
Summary: Hybrid supercapacitor (HSC) with high energy density was fabricated by combining Li2Co(WO4)2@Ag electrode with Activated carbon (AC) electrode. The Li2Co(WO4)2@Ag electrode exhibited high specific capacity and excellent retention capacity, leading to the outstanding performance of the HSC.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Rihan Wu, Jun Ai, Lu Ga
Summary: A fluorescence method for the rapid detection of bismuth ions was developed based on the aggregation-induced luminescence of glutathione-protected copper nanoparticles. The fluorescence intensity of the nanoparticles can be quenched in the presence of bismuth ions. The method is simple, rapid, selective, and can be used for qualitative detection of bismuth ions.
FRONTIERS IN CHEMISTRY
(2022)
Article
Energy & Fuels
L. Panariello, M. O. Besenhard, S. Damilos, A. Sergides, V. Sebastian, S. Irusta, J. Tang, Nguyen Thi Kim Thanh, A. Gavriilidis
Summary: Coprecipitation is the most common method for synthesizing iron oxide nanoparticles (IONPs), but reproducibility and scalability are major challenges. In this study, researchers combined microwave heating with a flow reactor to produce IONPs through coprecipitation. By controlling the residence time and microwave power, they were able to synthesize multicore IONPs with hydrodynamic diameters ranging from -35 to 70 nm and single core sizes of 3-5 nm. The addition of the stabilizer at a precise time in the flow reactor contributed to the reproducibility of the synthesis. Furthermore, the researchers successfully scaled up the process, producing particles with similar structure at a throughput of 3.3 g/h.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Chemistry, Multidisciplinary
Shuli Yin, Rajaiah Dhilip Kumar, Hongjie Yu, Chunjie Li, Ziqiang Wang, You Xu, Xiaonian Li, Liang Wang, Hongjing Wang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Engineering, Electrical & Electronic
R. Dhilipkumar, C. Jeganathan, K. L. Vincent Joseph, C. Karthikeyan, S. Karuppuchamy
Summary: Highly electroactive Zn-embedded Ni9S8 nanosphere and its ZnS/NixS6-based nanocomposites were synthesized via a simple hydrothermal route, showing promising supercapacitive behavior with excellent specific capacitance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Review
Chemistry, Multidisciplinary
R. Dhilip Kumar, S. Nagarani, V. Sethuraman, Swetha Andra, V. Dhinakaran
Summary: Supercapacitors are gaining popularity due to their quick charge/discharge rates, prolonged cycle stability, and high specific power. Materials like graphene and metal sulfides have shown excellent performance in supercapacitors, offering promising applications in energy storage.
Article
Materials Science, Multidisciplinary
R. Dhilip Kumar, K. Sreevani, V Shanmugavalli, S. Nagarani, V Dhinakaran, R. Balamurali
Summary: ZnS-Co3S4 nanoscrubbers prepared by hydrothermal routes exhibit excellent supercapacitance behavior when used to modify electrodes, showing high specific capacitance values and very high stability over 2000 cycles at 0.5A/g.
Article
Materials Science, Multidisciplinary
R. Dhilip Kumar, K. Sreevani, G. Radhika, V. Sethuraman, V. Shanmugavalli, S. Nagarani, S. Balachandran, Mohanraj Kumar
Summary: In this study, a CuO-Cu2O heterostructure was successfully synthesized using a chemical method, and its supercapacitance behavior as an electrode was investigated. The results show that the CuO-Cu2O modified electrode exhibits high specific capacitance in a 2M KOH solution and demonstrates good stability after 2000 cycles.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Energy & Fuels
S. Nagarani, G. Sasikala, M. Yuvaraj, R. Dhilip Kumar, S. Balachandran, Mohanraj Kumar
Summary: The current energy crisis has driven the development of energy storage materials for supercapacitors and rechargeable batteries. Metal oxide-based two-dimensional materials, such as reduced graphene oxide nanocomposites, show great potential for this purpose. The ZnO-CuO/rGO nanocomposites were successfully synthesized and extensively characterized. The nanocomposite exhibited high capacitance, energy density, and excellent cycle stability in the 1 M H2SO4 electrolyte, making it a promising electrode material for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Rohit Kumar, Ratna Kishore Velamati, Sudarshan Kumar
Summary: The combustion characteristics of n-decane+air mixtures were experimentally investigated, showing that higher temperatures lead to higher burning velocities and different kinetic models have varying predictions.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
S. Nagarani, G. Sasikala, M. Yuvaraj, S. Balachandran, R. Dhilip Kumar, Mohanraj Kumar
Summary: In this study, a simple, cost-effective, and large-scale method was used to synthesize metal-free self-assembled graphene oxide sheets, and reduced graphene oxide sheets were prepared by heat-treating the graphene oxide sheets. The reduced graphene oxide exhibited high electrochemical performance, with a high specific capacitance value and excellent cycle stability.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Energy & Fuels
V. Sethuraman, R. Dhilip Kumar, A. Prabhakaran, P. Rajkumar, K. Diwakar, M. Senthilkumaran, M. Saravanan, R. Sasikumar, K. Aravinth, P. Ramasamy, R. Manigandan
Summary: The improved features of a supercapacitor, such as longer life cycle, higher specific capacitance, and higher specific power, have attracted increased attention. MnOOH nanorods and Mn2V2O7 nanopebbles were synthesized and studied for their supercapacitance behavior, showing the potential of supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
R. Dhilip Kumar, S. Nagarani, S. Balachandran, Chidambaram Brundha, S. Hari Kumar, R. Manigandan, Mohanraj Kumar, V. Sethuraman, Soo Hyung Kim
Summary: Significant progress has been made in the research on environmentally friendly energy conversion and storage technologies. Hexagonal-shaped ZnO nanopowders prepared by a hydrothermal method exhibited pseudo-capacitance behavior. The pseudo-capacitance of electrodes coated with crystalline ZnO nanopowders was investigated using various electrochemical techniques. The ZnO modified electrode achieved the highest specific capacitance of 448 F/g at 0.25 A/g in 2 M KOH. Furthermore, the stability of the ZnO modified electrode was significantly better than other prepared electrodes, making it a promising candidate for energy storage devices. The assembly of ZnO@NF//AC@NF as an asymmetric supercapacitor also demonstrated excellent capacitance retention over 5000 cycles.
SURFACES AND INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
V. Shanmugavalli, R. Dhilip Kumar, Alagarasan Jagadeesh Kumar, R. Kavitha, C. Brundha, V. Sampath, Moonyong Lee
Summary: In this work, nanocomposite fibers of NiCo2O4/PANI/graphene were prepared using a low cost and simple electrospinning method. The properties of the prepared materials were studied using various techniques such as X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope, and transmission electron microscope. The supercapacitance behavior of the nanofibers was investigated using galvanostatic charge-discharge, cyclic voltammetry, and electrochemical impedance spectroscopy techniques, showing high specific capacitance and stability.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
R. Dhilip Kumar, S. Balachandran, Alagarasan Jagadeesh Kumar, C. Brundha, Mohanraj Kumar, Moonyong Lee
Summary: In this study, titanium dioxide was prepared using a simple, cost-effective, and sol-gel method. The TiO2 nanosphere modified electrode showed the highest specific capacitance value of 810F/g at 0.5 A/g in 2 M KOH. The stability of the TiO2 nanosphere coated electrode was significantly higher than other commercially available electrodes, demonstrating its suitability as a high-efficiency electrode material for supercapacitor applications.
Article
Energy & Fuels
Rajaiah Dhilip Kumar, Alagarasan Jagadeesh Kumar, S. Balachandran, Fedor Vasilievich Kusmartsev, Amira Ben Gouider Trabelsi, Fatemah H. Alkallas, S. Nagarani, V. Sethuraman, Byeong-Kyu Lee
Summary: In this study, Ni-doped ZnO nanoflowers with a chrysanthemum-flower-like structure were synthesized using a conventional hydrothermal method. The prepared materials exhibited a hexagonal wurtzite structure, as confirmed by X-ray diffraction. The Ni-doped ZnO nanoflowers showed excellent pseudo-capacitance behavior, achieving a maximum specific capacitance value of 1090 F/g. The fabricated electrode also showed high stability and columbic efficiencies of 101% and 89%, respectively.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Environmental Studies
C. Karthikeyan, R. Dhilip Kumar, J. Anandha Raj, S. Karuppuchamy
ENERGY & ENVIRONMENT
(2020)
Article
Chemistry, Physical
Rajaiah Dhilip Kumar, Ziqiang Wang, Chunjie Li, Alam Venugopal Narendra Kumar, Hairong Xue, You Xu, Xiaonian Li, Liang Wang, Hongjing Wang
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
