Article
Metallurgy & Metallurgical Engineering
Meng-chao Ye, Ting-ting Ding, Hao Zhou, Feng-jiao He
Summary: The nucleation and growth mechanism of electrodeposited Ni-W alloy involve the formation, movement, and aggregation of atoms, single crystals, and nanoclusters, resulting in a nanocrystalline structure.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Le Zhao, Meng Yuan, Ze Fan, Zhongquan Zhang, Guoying Wei
Summary: The temperature induced wear mechanism transition of electrodeposited Ni-Co-W alloy coatings has been investigated. The wear resistance of the coatings is enhanced at high temperature, and the wear mechanism changes from abrasive wear to mild oxidative wear.
Article
Materials Science, Coatings & Films
Pao-Chang Huang, Chih-Cheng Chou, Li-Shan Hsu
Summary: This study investigates the effect of electrodeposition parameters on Ni-W alloy coatings, determining optimal conditions for increased wear and friction resistance on piston rings. Results show that Ni-40.6 wt%W alloy exhibits improved mechanical and tribological properties compared to hard chromium coatings. The resistance of Ni-40.6 wt%W alloy coatings to wear and scratching on piston rings is confirmed through engine testing.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Ping Zhang, Wenyu Tan, Hanwei He, Zhouhao Fu
Summary: A binder-free quaternary Ni-Fe-W-Mo alloy nanostructure was successfully constructed using an electrodeposition strategy, showing excellent electrocatalytic performance for oxygen evolution reaction (OER) at both room temperature and high temperature. This alloy has the potential for energy conversion applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Changwei Su, Zhaoyao Sa, Yangyang Liu, Linfu Zhao, Fengjing Wu, Wei Bai
Summary: Electrodeposited Ni-W alloy coatings are considered a suitable alternative to carcinogenic hexavalent chromium coatings. The W content in the coatings is influenced by both the concentration of Na2WO4 2H(2)O (C-W) and the applied current density, with the effect of C-W becoming weaker at higher current densities. The highest microhardness and best hydrogen evolution reaction (HER) property are achieved after heat treatment at 400°C, while the best corrosion resistance in a 3.5 wt.% NaCl solution is seen at 600°C.
Review
Chemistry, Analytical
Xiaoyu Zhao, Haoqiang Gao, Yongdan Hou, Lemuel Gbologah, Xiangdong Zeng, Yanfei Wang
Summary: Quartz Crystal Microbalance (QCM) is a scientific instrument based on the piezoelectric effect of quartz crystals, offering versatile, reliable, and sensitive in-situ sensing capabilities for small quantity variations. QCM and Electrochemical-QCM (EQCM) techniques have been used for precise analysis and control of crystallization and electrodeposition processes, providing implicit information through complex frequency changes. The future applications of QCM in this field show great potential and promise.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Chao Zhang, Wudong Si, Yin Wang, Sichao Dai, Da Shu
Summary: Annealing heat treatment resulted in refinement of crystalline structure and phase separation in Ni-Mo and Ni-Mo-W coatings, with the formation of Mo-W intermetallic precipitates. The coatings showed increased hardness and elastic modulus, with different mechanisms responsible for hardening at different annealing temperatures. Wear resistance was improved by the formation of lubricated oxides and enhanced H/E ratio in the coatings annealed at lower temperatures.
Article
Electrochemistry
D. Ahmadkhaniha, J. Kruemmling, C. Zanella
Summary: This study aimed to deposit high entropy alloy (HEA) coatings with five different elements from a single aqueous bath. The influence of pH, current density, and complex agent on the composition of deposited coating was examined. It was shown that pH had the most impact on the deposition of reluctant elements, while current density had the minimum effect. The deposited coating had a metallic, dense, and nodular morphology with configurational entropy of around 1.6 R.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Coatings & Films
Haowei Bian, Rui Wang, Kuizhao Zhang, Honglong Zheng, Mengjin Wen, Zhengmin Li, Zihan Li, Guixue Wang, Guangwen Xie, Xin Liu, Luhua Jiang
Summary: Ni-Fe-Cu-Co-W high entropy alloy (NFCCW-HEA) electrocatalysts were successfully prepared by a simple and efficient one-step electrodeposition method. The catalyst exhibits excellent catalytic performance, stability, and long-term electrolysis stability, providing a new idea for the preparation of nano porous high entropy alloy electrocatalysts.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Venkata Naga Vamsi Munagala, Nitin P. Wasekar, Lavakumar Bathini, L. Ramakrishna, G. Sundararajan
Summary: This study focused on investigating the effects of tungsten (W) content, heat treatment, and grain size on the corrosion behavior of Ni-W coatings. Ni-W coatings with varying W contents were electrodeposited using pulse and pulse reverse techniques. The coatings were characterized after heat treatment, and corrosion performance was evaluated through potentiodynamic polarization tests. The results indicated that as-deposited coatings had superior corrosion resistance compared to heat-treated coatings, and the corrosion behavior was explained by factors such as surface composition and micro-galvanic corrosion.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Shuai Yang, Zhaoyang Zhang, Kun Xu, Yucheng Wu, Hao Zhu, Wenrong Shen, Yang Liu
Summary: Ni-Co-W alloy is a promising material with excellent performance and wide application prospects. Electrochemical deposition and laser electrochemical deposition were utilized to fabricate Ni-Co-W alloy coatings. The variations in W content significantly influenced the coating's surface morphology, internal structure, and mechanical properties. The study also revealed that laser irradiation combined with a suitable W content can greatly enhance the corrosion resistance of the coatings.
Article
Materials Science, Coatings & Films
Yingjun Xu, Deyong Wang, Minqi Sheng, Huihua Wang
Summary: This study investigated the influence of current density on the microstructure, composition, and internal stress of Ni-W alloys electrodeposited in a citrate system. The results showed that tungsten existed as a solute in a Ni-W FCC structure oriented in the (111) direction. Increasing the current density resulted in higher tungsten content and current efficiency. The addition of 2-Butyne-1,4-diol altered the carbon content and reduced internal stress by promoting carbide formation near grain boundaries, preventing coating shrinkage during hydrogen escape. This carbon enrichment improved the corrosion resistance of the alloy.
SURFACE ENGINEERING
(2023)
Article
Chemistry, Analytical
Ya Tian, Liwen Ma, Xiaoli Xi, Zuoren Nie
Summary: In this study, Co-Mo-Ni-W alloy coatings were co-electrodeposited on a copper metallic substrate using electrolytes containing different systems of complexing agents. The addition of different complexing agents resulted in changes in the deposition potential and hardness of the coatings, as well as the Mo and W content in the coatings.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
M. Ramaprakash, Y. Deepika, C. Balamurugan, N. Nagaganapathy, R. Sekar, Subhendu K. Panda, N. Rajasekaran
Summary: Nano-crystalline Ni-W alloy films with variable tungsten compositions were deposited on mild steel substrate using pulse electrodeposition method. The influence of pulse parameters on composition, crystal structure, microhardness and corrosion properties were studied. Tungsten composition in Ni-W alloys affected crystal structure, crystallite size, microhardness, and corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Yingjun Xu, Deyong Wang, Minqi Sheng, Huihua Wang, Ruiqi Guo, Tianpeng Qu, Shaoyan Hu
Summary: The present study investigated the surface morphology, phase composition, mechanical properties, and corrosion resistance of Ni-W alloy coatings prepared under different current densities and heat treatment temperatures. Heat treatment affected the grain size, structure, and precipitates of the coatings. The highest coating hardness was achieved at 400°C, while the best corrosion resistance was achieved at 600°C.
Article
Environmental Sciences
Wafa Sassi, Hana Boubaker, Hayet Ben-Khaled, Sana Dhaoui, Achraf Ghorbal, Jean-Yves Hihn
Summary: The study aimed to enhance the adsorption capacity of nanoparticles, shorten the purification time and cost of contaminated waters using electrosorption technique. Results showed that adsorption of Cr (VI) on nano-Al2O3 occurred on a homogenous surface, and electrosorption process had a higher adsorption yield compared to free adsorption. However, the electrosorption process caused the loss of crystallinity in Al2O3 nanoparticles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Letter
Dermatology
Meryam Chaabani, Wissem Hafsi, Fatima Alaoui, Wiem Sassi, Mourad Mokni
INTERNATIONAL JOURNAL OF DERMATOLOGY
(2022)
Article
Electrochemistry
Wafa Sassi, Mouna Mrad, Debasis Behera, Salah Ammar, Jean-Yves Hihn
Summary: The study used an artificial neural network and central composite design model to determine the optimal electroplating conditions for Ni-based alloys, including current density, pH, and temperature. The theoretically optimal conditions were found to be 42 mA cm(-2) current density, pH 4.5, and 50 degrees Celsius. XPS and XRD analyses showed that these conditions would result in homogeneous and compact alloy structures, as well as stable Ni-alloy crystallinity.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2021)
Letter
Dermatology
Meriem Rouai, Malek Ben Slimane, Wiem Sassi, Fatima Alaoui, Ines Chelly, Mourad Mokni
DERMATOLOGIC THERAPY
(2022)
Article
Medicine, General & Internal
Wissal Abdelli, Asmahen Souissi, Fatima Alaoui, Wiem Sassi, Ines Chelly, Slim Haouat, Mourad Mokni
Summary: Rapp-Hodgkin syndrome (RHS) is a rare condition characterized by ectodermal dysplasia and palatal abnormalities. This case report describes a 15-year-old boy with RHS associated with palmoplantar keratoderma (PPK).
CLINICAL CASE REPORTS
(2022)
Article
Chemistry, Applied
Imen Ghanmi, Wafa Sassi, Paula Oulego, Sergio Collado, Achraf Ghorbal, Mario Diaz
Summary: This study focuses on the removal of Indigo Carmine dye using synthetic mesoporous Titanium dioxide nanoparticles, and determines the optimal contact time and adsorption capacity through process optimization. The study also analyzes the properties of reactors and thermodynamics.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ahmed M. Khalil, Radhia Msaadi, Wafa Sassi, Imen Ghanmi, Remy Pires, Laurent Michely, Youssef Snoussi, Alexandre Chevillot-Biraud, Stephanie Lau-Truong, Mohamed M. Chehimi
Summary: This study focuses on the modification of biochar derived from agricultural wastes through phosphoric acid treatment and arylation organic reaction. The results reveal that the arylation process has minimal impact on the morphology of the biochar, and the degree of arylation is highest at a specific concentration. Additionally, this study presents the first report on the diazonium modification of agrowaste-derived biochar and its potential applications.
Article
Green & Sustainable Science & Technology
Wafa Sassi, Imen Ghanmi, Paula Oulego, Sergio Collado, Salah Ammar, Mario Diaz
Summary: In this study, biochar derived from pomegranate peels was used for the first time as an adsorbent to remove aniline dyes. The optimum conditions for the adsorption of Aniline Yellow (AY) and Aniline Blue (AB) were determined using Artificial Neural Network and Central Composite Design modelization. The adsorption of AY and AB was found to be physical and spontaneous, with different thermodynamic properties. The application of the optimum conditions resulted in highly selective adsorption with percentages up to 95%.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Polymer Science
Mouna Mrad, Wafa Sassi, Jean-Yves Hihn, Fatima Montemor
Summary: This study evaluates the impact of cerium nitrate as an additive on the physico-chemical and anti-corrosion properties of sol-gel gamma-glycidoxypropyltriethoxysilane polymers (GPS) applied onto AA2024-T3 aluminum alloy. The addition of Ce(NO3)3 affects the morphology, chemical composition, and thickness of the electrodeposited coatings. Ce improves the anti-corrosion performance of GPS film, particularly at a concentration of 3.3 x 10(-2) M, by forming protective Ce oxides/hydroxides and blocking corrosion activity.
Article
Environmental Sciences
Najeh Ardhaoui, Wafa Sassi, Radhia Msaadi, Nicolas Rouge, Salah Ammar, Ayman Nafady, Jean-Yves Hihn
Summary: This investigation explores the use of natural perlite mineral for removing oxytetracycline from aqueous solutions. The study analyzes the effects of contact time, initial concentration, and temperature on the removal efficiency. Kinetics of the adsorption process are studied using pseudo-first order and pseudo-second order models. Isotherm models, including Langmuir and Freundlich, are employed to understand the adsorption behavior. A thermodynamic analysis is conducted to reveal the nature of the adsorption process. The study also evaluates the photocatalytic efficiency of perlite.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Engineering, Environmental
Wafa Sassi, Radhia Msaadi, Najeh Ardhaoui, Salah Ammar, Ayman Nafady
Summary: Selective/simultaneous adsorption of Congo Red (CR) and Methylene Blue (MB) has been effectively achieved using amorphous perlite. Optimum conditions of 38 min contact time, 96 mg/L dye concentration, and 312 degrees K temperature resulted in high adsorption yields of 82.22% for CR and 96.65% for MB. The adsorption process was found to occur through intradiffusional mass transport onto the porous material. Thermodynamic parameters indicated an endothermic/spontaneous physisorption process. SEM-EDS characterization revealed the surface adsorption process, while FTIR analysis showed disruption of compound order and decreased crystallinity of the adsorbent after adsorption. Application of these conditions to real industrial wastewater demonstrated simultaneous adsorption at neutral pH and 312 degrees K, with selective adsorption of CR at pH 4 and MB at pH 9.
JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Radhia Msaadi, Asma Yahia, Wafa Sassi, Salah Ammar
Summary: In this study, the adsorption of methyl orange dye onto expanded Perlite was investigated. The optimal conditions for contact time, dye concentration and temperature were determined to be 115 min, 65 mg/L and 311 K, respectively. The highest adsorption yield and capacity were found to be 82.22% and 195.27 mg/g, respectively. Kinetic, isotherm and thermodynamic studies revealed the adsorption process characteristics. EDS, SEM and FTIR analysis confirmed the adsorption of MO onto Perlite.
CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Radhia Msaadi, Wafa Sassi, Jean-Yves Hihn, Salah Ammar, Mohamed M. Chehimi
Summary: Pomegranate peel balls were evaluated as bioadsorbents for the removal of methylene blue dye from aqueous solutions. The adsorption followed pseudo-second order kinetics and the maximum adsorption capacity varied with temperature, with physical adsorption being the primary mechanism. The waste generated by pomegranate peel could be considered for future water filtration and environmental protection in countries where pomegranates are available.
EMERGENT MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Radhia Msaadi, Wafa Sassi, Jean-Yves Hihn, Patrice Bercot, ElMustafa Rezrazi, Salah Ammar
Summary: This paper investigates the detailed physical and electrochemical properties of electroplated W enhanced by massive Ni coatings, revealing that all coatings corrode in 3% NaCl solution, leading to uniform corrosion of the enhanced W coating, with the main corrosion products being NiO, Ni(OH)(2) and WO3.
CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY
(2021)
Article
Business, Finance
Wafa Sassi, Hakim Ben Othman, Khaled Hussainey
Summary: The study shows that the adoption of XBRL has a negative impact on the development of stock markets, indicating the need for strict policies and mechanisms to ensure successful implementation and stakeholder understanding.
ASIA-PACIFIC MANAGEMENT ACCOUNTING JOURNAL
(2021)
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)
