Article
Materials Science, Multidisciplinary
D. B. Mane, O. C. Pore, R. K. Kamble, D. V. Rupnavar, S. H. Mujawar, L. D. Kadam, R. V. Dhekale, G. M. Lohar
Summary: In this study, Ni(OH)(2) microflowers were successfully deposited on a cost-effective stainless steel electrode using a simple chemical bath deposition method. Potassium persulphate played an important role as an oxidizing agent in controlling the growth of the nanostructure. By optimizing the deposition time and heating temperature, Ni(OH)(2) with higher specific capacitance was obtained.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Electrochemistry
Qingfu Guo, Jinzhong Yuan, Yubao Tang, Caixia Song, Debao Wang
Summary: PANI/CeO2/Ni(OH)(2) hierarchical hybrid spheres were successfully prepared and exhibited excellent electrochemical activity and supercapacitor performance under optimized conditions, showing potential practical application value.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Valerii Kotok, Peter Ondrejka, Miroslav Mikolasek, Michaela Sojkova, Patrik Novak, Maros Gregor, Vadym Kovalenko, Kostyantyn Sukhyy
Summary: The self-decomposition reaction of the nickel ammonia complex was used for the formation of nickel hydroxide on nickel foam, and the formation method was modified by the addition of polyvinyl pyrrolidone (PVP) and the electrochemical or chemical activation with cobalt hydroxide. In all cases, Ni(OH)2 nanoflakes were formed, and the chemical activation process resulted in the precipitation of flower-like Co(OH)2 particles among the nanoflakes. It was found that the presence of PVP during the nickel ammonia complex decomposition suppressed the highly branched particles, leading to enhanced capacitive properties of the formed electrode at high current densities. The highest capacitance of 1408 F/g at 1 A/g was achieved for the sample precipitated with the presence of PVP and further chemical activation with cobalt.
Article
Energy & Fuels
Wending Zhou, Xuehua Yan, Wenjing Zhang, Yanli Li, Yihan Zhu, Mengyang Zhang, Wen Zhu, Xiaonong Cheng
Summary: A novel electrode material with a three-dimensional interconnected nanostructure, NiV-LDH@Co2NiO4, was successfully developed, showing outstanding electrochemical performance, providing new insights and solutions for the development of hybrid supercapacitors.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Biny R. Wiston, Kasinathan Dhivyaprasath, Shivangi Tewatia, M. Ashok
Summary: In this study, an optimized composite electroactive material was developed by adjusting the ratio of nickel and manganese, demonstrating improved electrochemical performance and high-rate capability. The material exhibited a high specific capacity and excellent cycle life under high-rate charging and discharging, indicating its potential as an electrode material for supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Materials Science, Multidisciplinary
Wan Jeffrey Basirun, Idris Mohamed Saeed, Mohammad Saidur Rahman, Shaukat Ali Mazari
Summary: This review presents nanocomposites of nickel oxides, hydroxides, LDH-Ni with graphene, functionalized graphene, doped graphene, as hybrid supercapattery materials, showcasing their improved energy storage performances compared to pure materials and bridging the gap between batteries and supercapacitors. The higher power density and energy density of these hybrid supercapattery nanocomposites is discussed, along with different synthetic processes and future perspectives.
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
(2021)
Article
Chemistry, Physical
Xiaoyan Chen, Shichao Wang, Gaoqun Qiao, Xiaohu Wang, Guixia Lu, Hongzhi Cui, Xinzhen Wang
Summary: Hierarchical structures of SEP/Ni(OH)(2) have been successfully synthesized as high performance supercapacitors, with a specific capacitance reaching 2050 F g(-1) and an energy density of 24 Wh kg(-1) when the molar ratio of SEP and Ni(OH)(2) is 1:8.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yu Jun Yang, Songyang Chen, Chenjia Jiang, Ningya Wang, Panxiang Yang, Mengxiao Liu, Yao Cheng
Summary: In this study, flower-like Mn3O4/NiCo-layered double hydroxide@multiwalled carbon nanotube nanocomposites were directly assembled on Ni foam using a novel two-step method. The resulting nanocomposites exhibited excellent charge storage capability in electrochemical tests, indicating their great potential for application.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Salah Eddine Berrabah, Abdelhakim Benchettara, Fatiha Smaili, Abdelkader Benchettara, Abdelkadir Mahieddine
Summary: A binder-free nickel hydroxide electrode improved with a thin layer of zinc oxide was developed for high performance supercapacitor electrode. The electrodeposition of nickel hydroxide was conducted on a zinc oxide layer electrodeposited on graphite substrate. The Gr/ZnO/Ni(OH)2 electrode showed a highest areal specific capacitance of 545.5 mF.cm-2 and excellent cycling stability with only 7.3% capacity loss after 10,000 cycles. The hybrid supercapacitor with Gr/ZnO/Ni(OH)2 // AC configuration delivered a high areal energy density of 65.1 mu Wh.cm-2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hang Yun, Ren He
Summary: This paper presents a partial differential model for an Asymmetric hybrid supercapacitor (AHSC) device. The model considers the influence of positive and negative electrode materials, electrolyte, and double layers, and describes the distribution of concentration fields and electric fields using multiple equations. The validity and accuracy of the model were verified by simulating experimental data.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
D. B. Mane, O. C. Pore, D. S. Sawant, D. V. Rupnavar, R. V. Shejwal, S. H. Mujawar, L. D. Kadam, R. V. Dhekale, G. M. Lohar
Summary: In this study, V-doped Ni(OH)(2) microflowers were successfully fabricated using a chemical bath deposition process. The resulting material exhibited high specific capacitance and stability, offering potential for application in supercapacitors.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Energy & Fuels
Liang Zhao, Shuijin Lei, Qunying Tu, Lihui Rao, Weihang Zen, Yanhe Xiao, Baochang Cheng
Summary: The controllable growth and phase transformation of nickel hydroxide nanostructures on nickel foam have been achieved through tuning the concentration of reactants. The alpha-type nickel hydroxide electrode shows much higher specific capacitance than the beta-type, with a large gravimetric capacitance of 2075 F g(-1) at a current density of 0.5 A g(-1). The asymmetric supercapacitor exhibits a high specific energy of 31.5 Wh kg(-1) at a specific power of 388 W kg(-1) within a voltage window of 1.55 V.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Zhenhan Li, Jianbin Lin, Xin He, Yue Xin, Ping Liang, Chi Zhang
Summary: Designing and modifying nanoporous metal foils for supercapacitors and catalysis is significant but challenging. In this study, CuxO nanoflakes were successfully grown on nanoporous Cu foil via electrooxidation, resulting in a high-performance electrode for supercapacitors and catalysts.
Article
Materials Science, Multidisciplinary
M. Jayachandran, S. Kishore Babu, T. Maiyalagan, M. R. Kannan, R. Goutham Kumar, Y. Sheeba Sherlin, T. Vijayakumar
Summary: This study discusses the electrochemical performance of porous Nickel oxide nanocrystals synthesized by the hydrothermal method, analyzing their structure and morphology through various techniques. The porous Nickel oxide electrode shows high specific capacitance in different aqueous electrolytes, with exceptional performance in 1M Na2SO4 solution. Additionally, the electrode exhibits good cyclic stability with 91% capacity retention over 2000 cycles, highlighting its potential for supercapacitor applications.
Article
Energy & Fuels
Tsai-Mu Cheng, Pin-Chun Lee, Mei-Wei Chen, Hung-Ming Chen, Sibidou Yougbare, Lu-Yin Lin, Yung-Fu Wu
Summary: The study investigates a battery-type material composed of copper oxide and Ni(OH)2 nanosheets, which achieves high energy storage ability by improving electrical conductivity and active sites. The battery supercapacitor hybrid exhibits high energy density and cycling ability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)