Article
Chemistry, Physical
Ganesh Kumar Veerasubramani, Myung-Soo Park, Hyun-Sik Woo, Yang-Kook Sun, Dong-Won Kim
Summary: Constructing heterostructures by water-based surface exfoliation to create MoS2 nanorod-based electrodes covered with Sn and Mo sulfides/carbon matrix showed superior performance in Li/Na-ion storage applications, attributed to enhanced ion diffusion, charge transfer, and structural stability.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
A. M. Abuelftooh, M. G. Fayed, S. Y. Attia, Y. F. Barakat, N. S. Tantawy, S. G. Mohamed
Summary: In this work, a new electrode material called Nickel Manganese Selenide (NiMnSe, NMS) is prepared directly on nickel foam, demonstrating excellent electrochemical properties. The NMS electrode exhibits a nanosheet structure, high surface area, and remarkable performance in both Li-ion battery and supercapacitor applications. Additionally, a hybrid electrode system combining NMS with bismuth selenide (Bi2Se3) shows potential for energy storage devices.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Energy & Fuels
Mingyu Jung, Girish S. Gund, Bruce Dunn, Ho Seok Park
Summary: Organic active materials have great potential to replace inorganic counterparts due to their adjustable redox activity, mild synthesis conditions, and multi-electron reactions. However, their application is limited by issues such as dissolution in aqueous electrolyte and low electrical conductivity. In this study, self-assembled nanorods of perylene-3,4,9,10-tetracarboxylic dianhydride (NRPTCDA) were synthesized on carbon cloth for high-performance Zn-ion storage. By optimizing the synthesis conditions, the vertical orientation and length of the nanorods were controlled, facilitating Zn-ion insertion-deinsertion. The NRPTCDA cathode achieved a high capacity of 127.5 mAh g-1 at a current density of 1 A g-1 in an aqueous Zn-ion battery, with a retention of 82.10 mAh g-1 even at a high current rate of 50 A g-1. The structure-controlled NRPTCDA exhibited 90.1% rate capability at 100 mV s-1 and 78.91% capacity retention over 10,000 galvanostatic charge-discharge cycles at a current density of 10 A g-1. Ex situ X-ray diffraction, attenuated total reflectance-Fourier transform infrared spectroscopy, and field emission scanning electron microscopy measurements confirmed the structural, chemical, and morphological stability and reversibility of NRPTCDA electrodes for Zn2+ ion storage.
Article
Chemistry, Multidisciplinary
Wei Cao, Yun Gong, Wenhao Wang, Mingzhou Chen, Junhe Yang, Yuhua Xue
Summary: An innovative strategy was proposed to convert less-active titanium wires into unique hierarchical carbon/TiO2 nanotube/Ti core-sheath wires, which can be used for high-performance electrodes and as a substrate for active materials deposition. The resulting composite wires showed high specific areal capacitance and were used to fabricate an all-solid-state asymmetric fiber-shaped supercapacitor with excellent performance, including a wide voltage window, large areal capacitance, and good stability even after 10,000 cycles.
Article
Energy & Fuels
Haichen Yao, Xianglei Liu, Qingyang Luo, Qiao Xu, Yang Tian, Tianze Ren, Hangbin Zheng, Ke Gao, Chunzhuo Dang, Yimin Xuan, Zhan Liu, Xiaohu Yang, Yulong Ding
Summary: This paper investigates the volumetric-absorption-based solar charging processes at the pore scale using experiments and numerical simulations. The study evaluates solar radiation transport, temperature distribution, liquid fraction, and solar thermal energy storage efficiency under different radiation intensities and skeleton thermal conductivities. The results show that the efficiency of volumetric-absorption mode is enhanced by 94% compared to the traditional surface-absorption mode.
Article
Materials Science, Multidisciplinary
Zhehui Yan, Weihao Wu, Ping 'an Huang, Lijun Wang, Xiaoyan Wang, Xiangrong Zhu, Luping Zhu
Summary: This study successfully fabricated well-aligned WO3 snowflake-like hierarchical arrays with (020) facet perpendicular to the FTO substrate. The fabricated samples were characterized by XRD, SEM, and UV-vis. The SHA photoanode exhibited an impressive photocurrent density of 2.43 mA·cm^-2 at 1.23 V vs RHE, which is 1.76 times higher than the sandwich-like structures. This improved performance can be attributed to the special SHAs and the preferred orientation, which would effectively promote the separation and transfer of carriers.
Article
Multidisciplinary Sciences
Yunyun Yang, Shenghua Xiong, Ju Fu, Yuanhua He, Yi Wu, Yi Xu
Summary: In order to enhance the homogeneity of phase-change materials (PCMs) composites for thermal energy storage, a poly(ethylene glycol monomethyl ether)-based trimethylolpropane (Ymer-N120) is used to form comb-like polyurethane as supporting materials for PCMs. The obtained comb-like polyurethane (YP) can provide 3D structure supporting materials for melting myristic acid (MA), and the long side ethyoxyl chain of Ymer-N120 promotes the formation of micron-sized crystals of MA. The results show that the prepared YP crosslinks have a maximal hold capability of about 50 wt% of composites, and when added with 50 wt% of MA, YPM50 exhibits high latent heat and fine thermal stability without leakage after accelerated thermal cycling testing.
SCIENTIFIC REPORTS
(2023)
Article
Electrochemistry
Zahra Andikaey, Ali A. Ensafi, Behzad Rezaei
Summary: FeCoCuP with 3D hierarchical structures was successfully synthesized and optimized to exhibit excellent supercapacitor performance, showing high specific capacity and energy density with good cyclic stability.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Yu Liu, Zhenlin Ma, Na Xin, Yulong Ying, Weidong Shi
Summary: In this study, P-doped NiCo2O4/NiMoO4 multi-dimensional nanostructures were successfully synthesized as electrode materials for supercapacitors, exhibiting high specific capacitance at low current density and excellent cycle stability at high current density. A hybrid supercapacitor device was prepared with high energy density at low power density, and showed excellent capacity retention rate after a large number of cycles, demonstrating the huge potential of multi-dimensional metal oxides in energy storage.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Wu Yang, Wang Yang, Liubing Dong, Guangjie Shao, Guoxiu Wang, Xinwen Peng
Summary: Na metal is considered as a potential anode material for next-generation batteries, but its practical applications are limited due to dendrite growth and volume changes. In this study, a 3D Cu foam skeleton with hierarchical ZnO nanorod arrays was developed as a stable host for dendrite-free Na metal anodes. The sodiophilic ZnO nanorod arrays provided abundant nucleation sites for Na, resulting in homogeneous nucleation and uniform growth on the electrode, leading to dendrite-free morphology and excellent cycling stability.
Article
Materials Science, Characterization & Testing
Lizhu Guan, Xuemin Zhao, Zengren Ji, Mengyuan Jiang, Yongai Cui, Ling Weng, Xuan Wang, Junwang Liu
Summary: In order to obtain high energy storage dielectric materials with high thermal conductivity, we designed and constructed three-dimensional BN-BT/PVDF skeleton structure composites using the ice template method and freeze-drying technology. By orienting the hexagonal boron nitride (h-BN) thermal conductive skeleton along the ice crystal on the nanoscale, the phonon thermal conductivity and intrinsic thermal conductivity can be improved. Impregnating the barium titanate modified polyvinylidene fluoride precursor into a 3D thermal conductive skeleton allows the formation of 3D BN-BT/PVDF composites with high thermal conductivity and high energy storage. The comprehensive performance of the BN-BT/PVDF composite is the most excellent when the h-BN content is 25 wt%, with an energy storage density of 2.6355 J/cm³, which is 5.64 times that of pure PVDF, and a thermal conductivity of 0.302 W/(m·K), an improvement of 152%, indicating promising industrial application prospects.
Article
Materials Science, Multidisciplinary
Jian Lan, Hongying Hou, Xianxi Liu, Xiaohua Yu, Ju Rong, Fangshu Chen
Summary: Hierarchical dumbbell-like Fe3O4/C powder was synthesized for the supercapacitor electrode, showing higher reversible capacitances and remarkable cycle stability. The electrode exhibited a high energy density at high power and is feasible for high-performance supercapacitor applications.
Article
Chemistry, Physical
Mingjun Pang, Wenxiu He, Zhaoyang Song, Ruxia Zhang, Shang Jiang, Miaomiao Mao, Min Pang, Runwei Wang, Jianguo Zhao
Summary: Mg/Co(OH)F precursors were prepared by a hydrothermal method and subsequent high-temperature treatment to yield stable MPO/CP composite electrode materials. The optimized MPO/CP nano-walls exhibited superior energy storage performance, including high specific capacitance, rate retention, and cycling stability. The MPO/CP material with modified electrochemical properties is a promising candidate for energy storage applications, as demonstrated by its high energy density and excellent stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
De-Xin Zhang, Chuan-Yong Zhu, Bing-Huan Huang, Xin-Yue Duan, Liang Gong, Ming-Hai Xu
Summary: To enhance the efficiency of energy storage and utilization, porous skeleton structures (PSS) are incorporated into phase change materials (PCM) as thermal conductivity enhancers. Numerical models are used to evaluate the thermal properties and energy storage characteristics of the system. The study analyzes the influence of PSS parameters, orientations, and heat flux on various factors such as melting time, PCM liquid volume fraction, heat transfer enhancement rate, Nusselt number, and energy storage rate. The results indicate that convective heat transfer significantly enhances the heat transfer in the PCM and PSS combined systems, especially for high porosity PSS structures.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Muharrem Acerce, Samuel Chiovoloni, Yaneth Hernandez, Carlos Ortuno, JiaSheng Qian, Jennifer Lu
Summary: A hierarchical electrode was fabricated by uniformly grafting redox-active poly(1,5-diaminonaphthalene) onto a 3D carbon nanotube electrode, providing a stable platform for electrochemical investigation with open nanochannels and excellent electrical connectivity between CNTs and the polymer.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Sangaraju Sambasivam, K. V. G. Raghavendra, Anil Kumar Yedluri, Hammad Mueen Arbi, Venkatesha Narayanaswamy, Chandu V. V. Muralee Gopi, Byung-Chun Choi, Hee-Je Kim, Salem Alzahmi, Ihab M. Obaidat
Summary: The novel MnCo2O4/NiO nanostructure prepared by a simplistic chemical bath deposition method has shown promising results as a binder-free electrode in supercapacitors. The electrode exhibited high specific capacity and excellent cycling reliability, making it a favorable option for efficient supercapacitors and energy storage applications.
Article
Polymer Science
Rajangam Vinodh, Raji Atchudan, Hee-Je Kim, Moonsuk Yi
Summary: This review presents the recent development of polysulfone-based electrolyte membranes and their composites for fuel cell applications. The influence of fillers on the performance of electrolyte membranes is discussed, along with the key issues of enhancing ionic conductivity and chemical stability. The future research directions for polymer electrolyte membranes are also briefly summarized.
Article
Computer Science, Information Systems
Do-Hyun Kim, Min-Soo Kim, Kandasamy Prabakar, Hee-Je Kim
Summary: Fast charging technology has gained attention due to the increased use of batteries in electric vehicles, light electric vehicles, and energy storage systems. However, fast charging can lead to issues such as fire, heat, and battery performance degradation. This paper proposes a real-time monitoring system to efficiently manage the charger and battery status.
Article
Chemistry, Physical
Rajangam Vinodh, Rajendran Suresh Babu, Raji Atchudan, Hee-Je Kim, Moonsuk Yi, Leandro Marques Samyn, Ana Lucia Ferreira de Barros
Summary: This study presents the synthesis of porous NiO nanoparticles through a simple hydrothermal method and demonstrates their excellent electrochemical performance. The unique morphology of NiO plays a crucial role in enabling efficient ion transport, shortening electron and ion pathways, and providing active sites for electrochemical reactions. Moreover, the assembled asymmetric supercapacitor (ASC) composed of NiO-300 and activated carbon (AC) shows outstanding supercapacitive performance.
Review
Chemistry, Multidisciplinary
Rajangam Vinodh, Rajendran Suresh Babu, Sangaraju Sambasivam, Chandu V. V. Muralee Gopi, Salem Alzahmi, Hee-Je Kim, Ana Lucia Ferreira de Barros, Ihab M. Obaidat
Summary: Supercapacitors, with their excellent capacitance and rate efficiency, extended durability, and cheap materials price, are regarded as one of the most promising energy storage devices. The choice of electrode materials is critical for the performance of supercapacitors. The combination of polyaniline (PANI) and metal-organic frameworks (MOFs) as electrode materials shows additional benefits and is predicted to be the next-generation electrode materials for efficient supercapacitors.
Article
Computer Science, Information Systems
Min-Soo Kim, Do-Hyun Kim, Hee-Je Kim, Kandasamy Prabakar
Summary: In this paper, a novel strategy for monitoring PV junction boxes based on LoRa technology is proposed. The wireless transmission of data collected from the PV junction boxes enables real-time monitoring and display of the received data on an LCD screen. The system shows stable communication reception and excellent performance in maintaining signal strength and packet error rate, even in non-line-of-sight environments.
Article
Chemistry, Multidisciplinary
Yedluri Anil Kumar, Himadri Tanaya Das, Phaneendra Reddy Guddeti, Ramesh Reddy Nallapureddy, Mohan Reddy Pallavolu, Salem Alzahmi, Ihab M. Obaidat
Summary: In this study, a composite material of Co3O4 nanoneedles decorated on Mo-Co3O4 nanosheets was prepared by hydrothermal method and characterized for its electrochemical properties. The results showed that the Co3O4@Mo-Co3O4 nanocomposite exhibited high specific capacity and stability, making it a promising supercapacitor material.
Article
Biochemistry & Molecular Biology
Yedluri Anil Kumar, Anuja A. Yadav, Bandar Ali Al-Asbahi, Seok-Won Kang, Md Moniruzzaman
Summary: The sulfur-deficient NiCo2S4 nanosheets exhibit high specific capacitances and excellent cycling stability, suggesting the potential for improved electrochemical performances through defect engineering and morphology optimization.
Article
Chemistry, Multidisciplinary
Md Moniruzzaman, Yedluri Anil Kumar, Mohan Reddy Pallavolu, Hammad Mueen Arbi, Salem Alzahmi, Ihab M. Obaidat
Summary: In this study, an interfacial engineering strategy was proposed to construct an efficient hydrothermal approach for supercapacitors by in situ growing cobalt-doped@MnO2 nanocomposite on highly conductive nickel foam. The cobalt dopant with high specific surface area provided a larger contacting area for MnO2, and the hierarchical phase-based pore architecture of the cobalt-doped surface condensed the electron transportation pathways. The nickel foam nanosheets provided charge-transport channels, leading to improved electrochemical activities.
Article
Chemistry, Multidisciplinary
Yedluri Anil Kumar, Ganesh Koyyada, Dasha Kumar Kulurumotlakatla, Jae Hong Kim, Md Moniruzzaman, Salem Alzahmi, Ihab M. Obaidat
Summary: In this study, a composite electrode material of Fe-doped NiCoOx on nickel foam was prepared through a simple hydrothermal route with annealing procedures. The Fe-dopant@NiCoOx@NF showed high specific capacitance and excellent cycling performance, indicating its potential as an efficient electrode material for supercapacitors.
Article
Chemistry, Multidisciplinary
Hammad Mueen Arbi, Anuja A. Yadav, Yedluri Anil Kumar, Md Moniruzzaman, Salem Alzahmi, Ihab M. Obaidat
Summary: Battery-type electrode materials have attracted much attention for hybrid battery supercapacitors. In this study, Ag-doped@Co(OH)(2)@polypyrrole nanosheets on a Ni foam were fabricated using a hydrothermal process, which exhibited rich electroactive sites, efficient charge transportation, and excellent mechanical stability. The hetero-interface of the composite showed a high specific capacity and good cycling stability, making it a potential candidate for high-performance energy storage supercapacitor devices.
Article
Chemistry, Multidisciplinary
Hammad Mueen Arbi, Ganesh Koyyada, Yedluri Anil Kumar, Dasha Kumar Kulurumotlakatla, Jae Hong Kim, Md Moniruzzaman, Salem Alzahmi, Ihab M. Obaidat
Summary: In this study, sheet-like Ni(OH)(2)@MgCo2O4 composites were developed on nickel foam using a hydrothermal process with calcination technology. The combination of the carbon-amorphous layer and porous Ni(OH)(2) nanoparticles was anticipated to enhance the stability performances and energy kinetics. The Ni(OH)(2)@MgCo2O4 nanosheet composite exhibited superior specific capacitance and cycling stability, making it a promising candidate for high-performance supercapacitor applications.
Review
Chemistry, Multidisciplinary
Yedluri Anil Kumar, Ganesh Koyyada, Tholkappiyan Ramachandran, Jae Hong Kim, Sajid Sajid, Md Moniruzzaman, Salem Alzahmi, Ihab M. Obaidat
Summary: Supercapacitors have gained popularity as energy-storage devices and their performance relies on the choice of electrode materials. Carbon-based electrodes are favored due to their low cost, abundance, and ability to easily modify their conductivity and surface area. Numerous studies have explored different carbon compounds, including pure carbon nanotubes and multi-stage carbon nanostructures, as electrodes to enhance the performance of carbon-based supercapacitors. These studies have investigated various pure carbon nanostructures and examined the use of different carbon nanomaterials, such as AC, CNTs, GR, CNCs, among others, to improve capacitance. This study provides a roadmap for producing high-quality supercapacitors using carbon-based electrodes.
Article
Chemistry, Multidisciplinary
Hammad Mueen Arbi, L. Vijayalakshmi, Yedluri Anil Kumar, Salem Alzahmi, Chandu V. V. Muralee Gopi, Andrivo Rusydi, Ihab M. Obaidat
Summary: In this study, NiCo2O4-based nanosheets anchored on nickel foam were prepared using a hydrothermal technique, which showed high capacitance due to its large specific surface area, enhanced rate properties, and excellent electrical conductivity. The electrochemical properties of the nanosheet composite were analyzed in a three-electrode configuration, showing high specific capacitance of 1308 F • g(-1) at 0.5 A • g(-1) and notable capacity retention over 6000 cycles. The unique Co(OH)(2)@NiCo2O4 nanosheet electrode exhibited longer lifespan and higher capacitance compared to NiCo2O4 and Co(OH)(2) electrodes, indicating its great potential for renewable energy storage applications.
Article
Engineering, Environmental
Shamim Ahmed Hira, Dicky Annas, Saravanan Nagappan, Yedluri Anil Kumar, Sehwan Song, Hee-Je Kim, Sungkyun Park, Kang Hyun Park
Summary: The development of a nitrogen-doped Co metal-organic framework-based material (N-Co-MOF) for the selective electrochemical detection of hydrazine (HZ) and hydrogen peroxide (HP) was described. The synthesized material displayed high surface area and superior activity for the detection of HZ and HP, showing wide linear ranges and low detection limits. The introduction of hetero atoms improved dispersion stability and electrocatalytic activity, potentially pioneering the development of PVP-assisted MOF materials for the electrochemical detection of hazardous analytes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
