Article
Green & Sustainable Science & Technology
Pelin Ozpinar, Ceren Dogan, Hakan Demiral, Ugur Morali, Salim Erol, Canan Samdan, Derya Yildiz, Ilknur Demiral
Summary: In this study, hazelnut-shell wastes were converted into activated carbon through single-step chemical activation. The activated carbon was then used to synthesize magnetic activated carbon and investigate the influence of magnetization on capacitive performance. The prepared electrodes were characterized and evaluated, and the results showed the higher capacitive performance of the activated carbon electrodes for energy applications.
Article
Chemistry, Physical
Teymoor Ghanbari, Ehsan Moshksar, Sara Hamedi, Fatemeh Rezaei, Zahra Hosseini
Summary: This paper presents the dynamic simulation of an equivalent circuit model of supercapacitors, considering self-discharge phenomenon. The self-discharge is modeled using a time-varying resistance in the circuit, with an optimal number of exponential functions fitted on experimental data. The model demonstrates desirable performance compared to other similar models, striking a balance between accuracy and complexity.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Davood Peyrow Hedayati, Gita Singh, Michael Kucher, Tony D. Keene, Robert Boehm
Summary: This study aims to improve the performance of solid-state supercapacitors (SSCs) by simulating their impedance using a defined equivalent circuit (EC) model. Two models, a mathematical model and a physicochemical model, were used and the impedance was measured using electrochemical impedance spectroscopy (EIS). The physicochemical model showed higher approximation ability due to its more complex circuit design, but also required more modeling and optimization effort.
Article
Automation & Control Systems
Dulyawat Doonyapisut, Byeongkyu Kim, Jung Kyu Kim, Eunseok Lee, Chan-Hwa Chung
Summary: Advancements in energy storage, photocatalysis, and sensors have generated large amounts of electrochemical impedance (EIS) data. Interpreting this data is challenging, but recent progress in machine learning (ML) models for EIS classification has been made. However, most models lack physical descriptor representation. In this study, variational autoencoders (VAE) were applied to EIS data analysis, achieving accurate classification, parameter prediction, and physical descriptor visualization.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
Article
Chemistry, Multidisciplinary
K. Y. Yasoda, S. Kumar, M. S. Kumar, K. Ghosh, S. K. Batabyal
Summary: A high surface area of manganese sulfide (MnS) nanoparticles was demonstrated via a simple solution method. The in-situ polymerization of aniline without HCl was achieved with the help of acidic groups on the graphene oxide surface. The addition of graphene oxide (GO) and polyaniline (PANI) improved the specific capacitance and interfacial interactions in the MnS/GO/PANI nanocomposite, making it a promising choice for high-performance supercapacitor applications.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Chemistry, Physical
Amirhossein Ghasemi Kenesi, Mohsen Ghorbani, Mohammad Soleimani Lashkenari
Summary: In the last decade, the production of clean and sustainable energy sources for energy storage purposes has grown significantly. Supercapacitors have been proven to be promising candidates in energy storage applications. In this study, a PANI/CdO/GO nanocomposite was prepared by coprecipitation method and its electrochemical performance was evaluated.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Lin Wang, Xiaowei Zhao, Zhongwei Deng, Lin Yang
Summary: This paper focuses on the accurate estimation of State of Charge (SoC) for electric vehicles and hybrid electric vehicles. A new model updating strategy based on electrochemical impedance spectroscopy (EIS) is proposed, which effectively enhances the SoC estimation accuracy by modifying model parameters and capacity according to the change rate of ohmic impedance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Electrochemistry
Hangyue Li, Zewei Lyu, Minfang Han
Summary: The Equivalent Circuit Model (ECM) is a powerful technique to analyze and compare Electrochemical Impedance Spectroscopy (EIS) data. However, noise poses a challenge to the accuracy of ECM. In this paper, a robust and fast algorithm is proposed to detect outliers, weigh the EIS data, and fit an ECM within a second, significantly reducing the impact of noise.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Manali S. Zantye, Akhilesh Gandhi, Yifan Wang, Sai Pushpitha Vudata, Debangsu Bhattacharyya, M. M. Faruque Hasan
Summary: Increasing renewable energy requires improving grid flexibility. Integrating electrochemical energy storage with individual power plants has been shown to be an economically viable solution. Li-ion batteries are suitable for small to medium-sized plants, while NaS batteries are suitable for larger storage. The integration of batteries and renewables can significantly reduce unmet grid demand, renewable curtailment, and CO2 emissions.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Xiaohu Zhang, Xiong Zhang, Xianzhong Sun, Yabin An, Shuang Song, Chen Li, Kai Wang, Fangyuan Su, Cheng-Meng Chen, Fangyan Liu, Zhong-Shuai Wu, Yanwei Ma
Summary: This study analyzed the impedance characteristics of LICs and established an ECM model to describe their impedance behavior. It was found that the charging-discharging cut-off voltage and cycle numbers greatly influence the impedance and capacity retention rate of LICs.
JOURNAL OF POWER SOURCES
(2021)
Article
Energy & Fuels
Melih Besir Arvas, Hurmus Gursu, Metin Gencten, Yucel Sahin
Summary: This study achieved the one-step preparation of different heteroatom doped graphene oxide electrodes for high-capacity supercapacitors. Through various characterization methods, the study analyzed the performance of the electrodes and revealed the impact of different dopant types on capacitive behavior.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Computer Science, Information Systems
Antonio Morandi, Alessandro Lampasi, Alessandro Cocchi, Filippo Gherdovich, Umberto Melaccio, Pier Luigi Ribani, Claudio Rossi, Francesca Soavi
Summary: The paper reports on high current testing and modeling activities on four large commercial supercapacitor cells. It shows that the cells exhibit similar phenomena and comply with the same circuit model, with circuit parameters being weakly dependent on the test current. The obtained circuit parameters are accurately reported and made fully accessible to users.
Article
Chemistry, Physical
Yuejiu Zheng, Zhihe Shi, Dongxu Guo, Haifeng Dai, Xuebing Han
Summary: In this paper, a low-frequency domain equivalent circuit model (LECM) based on the principle of electrochemical impedance spectroscopy (EIS) is proposed to simplify elements in the high-frequency region, identifying model parameters using only the low-frequency region of the EIS. It addresses the issue of traditional ECM dependence on time-domain working conditions.
JOURNAL OF POWER SOURCES
(2021)
Article
Materials Science, Multidisciplinary
Ru Bai, Shuguang Liu, Liqiang Yin, Changwang Yan, Ji Zhou, Lihe Lu, Lin Li
Summary: In this work, the damage degree of freeze-thaw of engineered cementitious composites (ECC) was assessed by electrochemical impedance spectroscopy (EIS) technique. The results showed that the EIS behavior of ECC varied with the freeze-thaw cycles, with the diameter of the Nyquist curve in high frequency gradually reduced and the volume resistance decreasing. A simplified microstructure and conductive paths were used to describe the freeze-thaw damage mechanism of ECC, and an equivalent circuit model of ECC exposed to freeze-thaw cycles was proposed.
MATERIALS & DESIGN
(2023)
Article
Computer Science, Information Systems
Maxime Van Haeverbeke, Michiel Stock, Bernard De Baets
Summary: In this review, the use of equivalent electrical circuits (EEC) in various application domains of electrochemical systems is explored. The aim is to assist electrochemical impedance spectroscopy (EIS) practitioners in evaluating and selecting EEC-based data analysis methods based on recent progress. The review covers EEC usage and interpretation, as well as providing software for automatically searching for relevant EECs in literature to fit user-supplied EIS measurements. Additionally, a comparison of impedimetric behavior and circuit modeling approaches is presented, along with discussions on complementary EIS data analysis strategies.
Article
Materials Science, Textiles
Havva Baskan, Imren Esenturk, Sibel Dosler, A. Sezai Sarac, Hale Karakas
Summary: Silver nanoparticles were prepared by reduction of silver salt using polyacrylonitrile and poly(acrylonitrile-co-itaconic acid) polymers, showing P(AN-co-IA) to be more effective. The presence of silver nanoparticles significantly increased electrical conductivity of nanofibers and enhanced antimicrobial activities against various microorganisms for up to 168 hours. The silver-containing nanofibers are promising for biomedical and pharmaceutical applications.
JOURNAL OF INDUSTRIAL TEXTILES
(2021)
Article
Materials Science, Biomaterials
Imren Esenturk, Selin Gumrukcu, Ayse Buse Ozdabak Sert, Fatma Nese Kok, Sibel Dosler, Sevgi Gungor, M. Sedef Erdal, A. Sezai Sarac
Summary: Polyurethane/polyvinylpyrrolidone/silk nanofibers loaded with lipophilic antifungal drug sertaconazole nitrate were prepared and evaluated for their drug release profiles, morphology, compatibility, and biocompatibility. The nanofibers exhibited sustained drug release and fungistatic activity against Candida albicans, suggesting their potential as topical drug delivery systems for fungal infections.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2021)
Article
Energy & Fuels
M. Giray Ersozoglu, Hurmus Gursu, Metin Gencten, A. Sezai Sarac, Yucel Sahin
Summary: Graphene-based electrodes have great potential for use as positive electrode material in vanadium redox flow batteries. This study successfully prepared binder-free sulfur-doped graphene oxide electrodes in one step and demonstrated improved performance in terms of discharge capacity and energy efficiency for vanadium redox batteries.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Polymer Science
Remzi Gurbuz, Baran Sarac, Viktor Soprunyuk, Eray Yuece, Juergen Eckert, Ali Ozcan, A. Sezai Sarac
Summary: Producing rubbery polymer nanofibers through electrospinning is challenging due to fiber entanglement, however, homogeneous CNT-filled PBu/PEO composite material shows improved physical properties. These composites can be used to create bio-composite scaffold and fibrous antibacterial membrane scaffolds with uniform diameter distribution.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Melike Barak, Araz Sheibani Aghdam, E. Billur Sevinis Ozbulut, Serkan Unal, Fevzi Cakmak Cebeci
Summary: This study focused on the assembly of uniform thin films with functional silica nanoparticles (FSNPs) using the layer-by-layer (LbL) technique. Monodisperse silica nanoparticles (SNPs) were synthesized by the reverse microemulsion method and then functionalized with amino silane coupling agents. The LbL assembled thin film coatings were characterized by various methods to analyze their roughness, topography, and surface features. The AHAPS-FSNPs showed superior colloidal stability and mechanical properties compared to other FSNPs due to their secondary amines creating steric hindrance and crosslinking ability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Composites
Deniz Koken, Aysemin Top, Fevzi Cakmak Cebeci, Firat Turgut, Beyza Bozali, Elif Ozden-Yenigun, Nuri Solak, Hulya Cebeci
Summary: Tailoring the SiC fiber-matrix interface in micron-sized fibers is crucial for enhancing the mechanical properties of ceramic reinforced composites. In this study, boron nitride nanotubes (BNNT) were grown on SiC fibers to create a fuzzy fiber architecture, increasing the surface area for an improved load path and mechanical properties. The growth of BNNTs did not lead to additional strength loss in the fibers and actually increased the interfacial shear strength with epoxy, preventing fiber-fiber sliding and enhancing the overall composite performance.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Baran Sarac, Yurii P. Ivanov, Tolga Karazehir, Marlene Muehlbacher, A. Sezai Sarac, A. Lindsay Greer, Jurgen Eckert
Summary: The multilayer amorphous and crystalline Pd-Si based nanosheets demonstrate exceptionally high hydrogen storage capabilities when stacked in the right order, offering potential for enhanced hydrogen storage and production through smart design applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Electrochemistry
M. Giray Ersozoglu, Hurmus Gursu, Selin Gumrukcu, A. Sezai Sarac, Yucel Sahin
Summary: The aim of this study is to convert commercial carbon fiber into heteroatom-doped graphene-like surfaced fibers through an eco-friendly and fast intercalation/semi-exfoliation mechanism, and to improve the hydrogen evolution reaction performance of the catalyst.
Article
Materials Science, Multidisciplinary
B. Sarac, T. Karazehir, E. Yuece, M. Muehlbacher, A. S. Sarac, J. Eckert
Summary: This study focuses on tuning the pore architecture and film thickness of mesoporous Pd-Cu-Si thin films sputtered on Si/SiO2 substrates to enhance their electrocatalytic and hydrogen sorption/desorption activities. The different thicknesses and pore diameters of the electrocatalysts show varying hydrogen sorption performance and electrocatalytic activity, making them applicable for standard fuel cells and rapid storage systems. The charge transfer resistance as described by an equivalent circuit model shows a strong correlation with Tafel slopes, indicating the potential utility of the thin films as nano-chargers and hydrogen sensors.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Physical
Baran Sarac, Tolga Karazehir, Hans-Detlev Gilsing, Juergen Eckert, A. Sezai Sarac
Summary: The interactions between the electrolyte and electroactive species in redox active PProDOT derivatives are enhanced by better-performing electrodes for electrochemical energy conversion and storage. A new equation is proposed to assess the kinetics of the diffusion-limited adsorption process, and electron-donating groups attached to the monomer stabilize radical cation and dication formation. The findings of this study provide new insights into the factors requiring attention in tailoring assemblies for organic electronic applications.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Mohammad Jafarpour, Araz Sheibani Aghdam, Ali Kosar, Fevzi Cakmak Cebeci, Morteza Ghorbani
Summary: Electrospinning is a promising method for creating nano-composite fibers with improved wettability and performance by adjusting process parameters and adding different components, showing potential for filtration and bioengineering applications.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Deniz Koken, Pelin Sungur, Hulya Cebeci, Fevzi Cakmak Cebeci
Summary: In this study, we demonstrate a sulfur-containing compound-assisted synthesis of boron nitride nanotubes (BNNTs) at a relatively low temperature from colemanite. Thiophene was found to be the most effective sulfur compound with stable decomposition products and low vapor pressure. Additionally, we evaluated ulexite and etidot-67 as potential alternatives to colemanite.
ACS APPLIED NANO MATERIALS
(2022)
Article
Electrochemistry
Keziban Huner, Abdulkadir Sezai Sarac
Summary: This study focuses on the electrochemical properties of Poly(ProDOT) in different electrolytic media with varying solvent dielectric constants. Results show that Poly(ProDOT) synthesized in the medium with the lowest dielectric constant exhibited the highest capacitance and charge density, while impedance magnitudes increased as dielectric constant increased. All films showed capacitive impedance responses at lower frequencies, with the highest capacitance observed for the film synthesized in the medium with the lowest dielectric constant.
JOURNAL OF ELECTROCHEMICAL SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Araz Sheibani Aghdam, Farzad Rokhsar Talabazar, Mohammad Jafarpour, Ali Kosar, Fevzi Cakmak Cebeci, Morteza Ghorbani
Summary: Electrospun hydrophobic and hydrophilic nanofibers can capture, separate, and transport bubbles, potentially enhancing the efficiency of various systems.
Article
Materials Science, Multidisciplinary
Deniz Urk, Fevzi Cakmak Cebeci, Mustafa Lutfi Ovecoglu, Hulya Cebeci
Summary: This study investigates the effect of Ni addition into the Fe matrix on the growth of VACNTs by synthesizing six different catalysts and analyzing the diameter distribution and chirality profiles of the VACNTs. Detailed analysis of the properties of VACNTs was conducted using various instruments, including Raman micro spectroscopy and electron microscopies.
MATERIALS ADVANCES
(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)
