Article
Chemistry, Physical
Gioele Pagot, Keti Vezzu, Steve G. Greenbaum, Vito Di Noto
Summary: The depletion of lithium and cobalt resources has led researchers to develop more sustainable energy economies in the battery field. The growth of the electric vehicles market is driving demand for high energy density storage devices beyond lithium-ion technology. This work describes the synthesis and characterization of innovative ionic liquid-based electrolytes for aluminum and magnesium conduction, showing a synergistic effect between the two elements that enhances electrochemical performance to unprecedented levels. The twin electrolytes can deposit and strip magnesium and aluminum simultaneously with low overvoltage, high Coulombic efficiency, and long cycle life, and a prototype battery has been successfully assembled and tested.
JOURNAL OF POWER SOURCES
(2021)
Article
Electrochemistry
Xize Chen, Shanghai Wei, Fanglei Tong, Mark P. Taylor, Peng Cao
Summary: In this study, the electrochemical performance of hypoeutectic Mg-Sn alloy anodes with all-phenyl complex (APC) electrolyte was investigated. The Mg14Sn alloy anode displayed different electrochemical behaviors compared to pure Mg, with lower resistance observed after 30 cycles.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Guokang Wei, Fei Tao, Xinqi Xu, Xin Li, Feiyan Lai, Zhenhua Luo, Jianhong Yang, Jia Qiao
Summary: The electrochemical performance of rechargeable aluminum ion batteries (RAIB) can be improved by treating polyaniline with phytic acid and ammonium hydroxide, resulting in increased specific capacity and cycle life.
SOLID STATE IONICS
(2023)
Article
Electrochemistry
Francisco J. A. Loureiro, D. Pukazhselvan, Igor Bdikin, Aliaksandr L. Shaula, Sergey M. Mikhalev, Duncan P. Fagg
Summary: This study explores the electrochemical performance of a titania anode with 10 wt.% MgH2 added for Li-ion half-cell batteries. Analysis using DFRT shows an increase in both ohmic and polarisation resistance terms compared to standard titania anode, but with a higher lithium diffusion coefficient and capacity retention. SEM and EDS reveal a higher surface coverage with MgH2 added titania, and SEM and AFM studies show evolution of different nanodomains with different conducting properties during charging/discharging cycles.
ELECTROCHIMICA ACTA
(2021)
Article
Energy & Fuels
A. F. Romero, R. Tomey, P. Ocon, J. Valenciano, H. Fricke
Summary: The study investigates the effect of incorporating boric acid into lead-acid batteries to enhance their performance. It was found that adding 0.50 wt% boric acid reduces the oxide reduction charge by 23% and increases the resistance of the corrosion process. Adding boric acid before cell formation improves the Cold Cranking Ampere (CCA) performance by 26%, while adding it after formation significantly reduces the Oxygen Evolution Reaction (OER) rate by 75% on the positive plate. Both addition methods slow down the corrosion growth in the positive plate, with reductions of 20% (addition before formation) and 12% (addition after formation).
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Milica M. Vasic, Milos Milovic, Danica Bajuk-Bogdanovic, Tamara Petrovic, Milica J. Vujkovic
Summary: Vanadium-oxide-based materials with various oxidation states have been studied for their potential applications in rechargeable magnesium ion batteries, showing different performance based on phase composition and metal ion insertion behavior. The sluggish Mg2+ ion kinetics in MgV2O6 was attributed to poor electronic and ionic wiring, leading to complex redox behavior in the materials. Addition of carbon was found to enhance the charge storage behavior of MgV2O6, demonstrating an effective dual strategy for improving performance.
Article
Engineering, Electrical & Electronic
Rizwan Wahab, Manawwer Alam
Summary: In this study, γ-Al2O3 quantum dots were used as a sensor to detect the organosulfur compound thiourea. The study showed the feasibility and stability of the γ-Al2O3QDs/GCE sensor under different conditions through various experiments and analyses.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Physical
Akshay Bhujbal, K. A. Venkatesan, Bhalchandra M. Bhanage
Summary: A new protic ionic liquid [HmPip][OTf] was successfully synthesized and used for aluminum electrodeposition, resulting in bright aluminum deposits. The findings indicate the potential application of this new liquid in the field of aluminum electrodeposition.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
Siavash Nazari, Mehdi Shabani-Nooshabadi, Neda Ziaie
Summary: A highly specific electrochemical sensor was developed for the identification and detection of quetiapine (QTPF). The modification of a carbon paste electrode (CPE) with a nanocomposite of iron, lithium ions, and manganese based on nitro-doped carbon enhanced the limit of detection and identification of QTPF. The nanocomposites were characterized using SEM, XRD, and FTIR. The electrochemical behavior of the drug with the modified electrode was studied using cyclic voltammetry, differential pulse voltammetry, chronoamperometry, and EIS. The sensor showed a linear range of 0.090-900 μM and a detection limit of 0.011 μM.
MICROCHEMICAL JOURNAL
(2023)
Article
Energy & Fuels
Wissem Zayani, Samir Azizi, Karam S. El-Nasser, Ibraheem Othman Ali, Michel Moliere, Nouredine Fenineche, Hamadi Mathlouthi, Jilani Lamloumi
Summary: Zinc ferrite spinel alloy synthesized using sol-gel technique was studied for its hydrogen storage properties and applied as an anode in Ni-MH accumulators. Various electromechanical methods were used to examine the hydrogen storage properties, showing good cycling stability. The electrolyte/ZnFe2O4 anode interface was studied using electrochemical impedance spectroscopy before and after activation.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Jan Kaufman, Jan Racek, Miroslav Cieslar, Peter Minarik, Matthew A. Steiner, Seetha R. Mannava, Vijay K. Vasudevan, Anurag Sharma, Marek Bohm, Jan Brajer, Jan Pilar, Ladislav Pina, Tomas Mocek
Summary: The study found that Laser Shock Peening (LSP) and Laser Peening without protective coating (LPwC) on sensitized AA5083 resulted in LPwC samples with improved corrosion resistance and lower corrosion current, while LSP samples showed only slight improvement in intergranular corrosion rate. This is attributed to the unique recast surface layer and embedded oxygen-rich aluminum nanoparticles sub-surface layer created during laser pulse interaction when no coating was applied.
Article
Chemistry, Physical
Muhammad Shafa, Iqbal Ahmad, Shahid Hussain, Muhammad Asif, Yi Pan, Rustem Zairov, Asma A. Alothman, Mohamed Ouladsmane, Zahid Ullah, Nabi Ullah, Chen Lai, Uzma Jabeen
Summary: A nanoalloy-based electrochemical sensor for H2O2 detection has been fabricated using chemical reduction methodology. The prepared samples were characterized by X-ray diffraction and scanning electron microscopy. Among all the compositions, Ag-Cu (9:1) nanoalloys showed the best performance in detecting H2O2.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Applied
Lucie Blondeau, Suzy Surble, Eddy Foy, Hicham Khodja, Magali Gauthier
Summary: A composite In-Pb:carbon was synthesized using a two-step mechanochemical process to investigate the electrochemical reactivity of the In-Pb solid solution towards Mg. The coupling effect of electroactive elements In and Pb was examined, showing the potential formation of Mg2Pb and MgIn in the solid solution. However, a peculiar electrochemically-driven amorphization of MgIn during magnesiation was observed, which differed from previous studies on In-based and InBi-based electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Gabriel Poras, Celine Cau Dit Coumes, Pascal Antonucci, Celine Cannes, Sylvie Delpech, Stephane Perrin
Summary: This study investigates the potential of magnesium potassium phosphate (MKP) cement as an alternative binder for the stabilization of aluminum-magnesium alloys in radioactive waste. The results show that regardless of the magnesium content in the alloy, the corrosion current of the alloys in MKP cement is reduced by almost three orders of magnitude compared to Portland cement over a one-year period.
Article
Environmental Sciences
Jih-Hsing Chang, Shan-Yi Shen, Cheng-Di Dong, Mohd Shkir, Mohanraj Kumar
Summary: This study investigates various MoO3 morphologies prepared through different methods for detection of H2O2, finding that morphology significantly affects the properties of MoO3 nanostructures. The modified MoO3/Ni-F electrode shows good performance in electrochemical properties and detection applications.
Article
Chemistry, Physical
Hongyu Zhang, Dianxue Cao, Zhuwu Jiang, Hai Yu, Antong Shi, Xue Bai
Summary: By introducing mesoporous carbon and nickel dots, the special structure of OMC@NiO/Ni has been created, enhancing the active sites contacting with electrolyte and providing conductive scaffolds for electron transport. This structure exhibits high specific capacitance and excellent cycling life, offering potential application prospects for energy storage-conversion equipments.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Shuang Sheng, Yanpeng Song, Linna Sha, Ke Ye, Kai Zhu, Yinyi Gao, Jun Yan, Guiling Wang, Dianxue Cao
Summary: The study introduces a high-efficiency self-supported bifunctional electrocatalyst consisting of hierarchical nickel-iron phosphide nanosheets grown directly on nickel foam, which show promising performance in ethanol oxidation reaction and hydrogen evolution reaction. The assembled hybrid ethanol-water electrolyser requires lower voltage for operation than traditional water splitting, showcasing potential for energy-saving hydrogen generation and ethanol oxidation applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Xue Bai, Dianxue Cao, Zhuwu Jiang, Hongyu Zhang
Summary: Aqueous batteries with low cost, high safety, and environmental friendliness utilize inorganic salt solutions as electrolytes. By exploring the use of hydrated lithium manganese oxide as cathode and VO2 nanosheet flower as anode in such batteries, researchers have achieved outstanding electrochemical performance and rate ability.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Energy & Fuels
Xianchao Wang, Weirong Li, Yanqin Xue, Junnan Liu, Yipeng Yue, Chunliang Zhou, Kai Zhu, Dianxue Cao, Ye Chen, Guiling Wang
Summary: CoS/NC composites were successfully prepared by applying chemical vapor deposition (CVD) treatment using ZIF-67 as precursor, with the optimal curing temperature being 700 degrees C. The CoS/NC-700 composites exhibit a hollow cage-like polyhedron structure composed of CoS nanosheets and nitrogen-doped carbon skeleton. These composites demonstrate a specific capacitance of 789 F g(-1) at 1 A g(-1) current density and a rate capacity of 80.2% at a current density of 20 A g(-1). Furthermore, the CoS/NC-700//AC capacitor shows the highest energy density of 32.8 Wh kg(-1) at a power density of 620.0 W kg(-1), while maintaining 89.2% of initial capacitance after 10,000 charge-discharge cycles at a current density of 5 A g(-1).
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Shengnan Zhang, Chunlin Zhao, Kai Zhu, Jiaqi Zhao, Yinyi Gao, Ke Ye, Jun Yan, Guiling Wang, Dianxue Cao
Summary: Aqueous Mg ion batteries (AMIBs) have great potential for energy storage due to their high capacity, abundant resource, and environmental friendliness. However, the scarcity of suitable anode materials limits the development of AMIBs. In this study, a new polymer anode material with a flower-like nanosheet structure is synthesized for aqueous Mg-Na hybrid-ion battery. The polymer electrode material exhibits high discharge specific capacity and maintains its framework structure during the cycling process of the hybrid-ion battery.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Energy & Fuels
Hongyu Zhang, Hongcheng Di, Dianxue Cao, Zhuwu Jiang, Zhipeng Hu, Xue Bai
Summary: Doping Mn element into the host material improves the specific capacitance and cycling stability of supercapacitors. In this study, Co-Mn LDHs hollow polyhedron was fabricated through a template sacrifice method, and the effect of controllable Mn element doping on electrochemical performance was investigated. A negative electrode based on MXene/rGO/V10O24 was synthesized to achieve high energy and power output in a hybrid supercapacitor. The results showed that the asymmetric supercapacitor of CMLs-0.53//MXene/rGO/V10O24 had a high energy density of 44.4 Wh kg(-1), a maximum power density of 12 750 W kg(-1), and excellent cycling life. The construction of CMLs with a hollow structure offers new insight into the preparation procedure, and the device based on CMLs-0.53 and MXene/rGO/V10O24 is a promising candidate for future energy storage and conversion systems.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Xuan Zhang, Yanqin Xue, Xianzhi Yin, Lian Shen, Kai Zhu, Xiaomei Huang, Dianxue Cao, Jiaxin Yao, Guiling Wang, Qing Yan
Summary: This study successfully fabricated Mn oxides-Fe-Ni sulfide composite materials as HER electrodes in alkaline media using a two-step hydrothermal process. The electrode shows low working potential and good stability.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Abdul Hanan, Dong Shu, Umair Aftab, Dianxue Cao, Abdul Jaleel Laghari, Muhammad Yameen Solangi, Muhammad Ishaque Abro, Ayman Nafady, Brigitte Vigolo, Aneela Tahira, Zafar Hussain Ibupoto
Summary: This study develops a composite system based on carbon materials and transition metal-based compounds, resulting in the synthesis of an optimized Co2FeO4@rGO composite. The composite exhibits outstanding multifunctional applications in the oxygen evolution reaction (OER) and hydrogen counterpart (HER) due to its high electrical conductivity, density of active sites, crystal defects, oxygen vacancies, and favorable electronic structure.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Xianzhi Yin, Kai Zhu, Ke Ye, Jun Yan, Dianxue Cao, Dongming Zhang, Jiaxin Yao, Guiling Wang
Summary: A bi-functional electrode material of self-supporting N-doped C foam grown Pd nanoparticles (Pd@N/C-8 foam) for NaBH4 electrooxidation and H2O2 reduction reaction is successfully prepared and exhibits extraordinary catalytic performance and kinetic parameters. Its application in a direct sodium borohydride-hydrogen peroxide fuel cell (DBHPFC) demonstrates excellent stability and maximum power density.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Ruibai Cang, Mingyi Zhang, Xuejiao Zhou, Kai Zhu, Xitian Zhang, Dianxue Cao
Summary: A new anode material, 3D-conjugate of 3,4,9,10-perylenetracarboxylic diimide-1,3,5-triazine-2,4,6-triamine (3D-P(PDI-T)), was designed and synthesized for aqueous Mg-ion batteries (MIBs). The increased aromatic structure improved its structural stability by reducing its solubility in aqueous electrolytes. The 3D-P(PDI-T) anode exhibited high rate capacity, reversible capacity, and long cycle life, making it a promising candidate for MIBs.
Article
Chemistry, Physical
Boya Liu, Kai Zhu, Ke Ye, Jun Yan, Guiling Wang, Dianxue Cao
Summary: By designing and constructing the PANI-PPI-9 composite, the electrochemical performance of PPI is improved, especially in terms of battery cycling life. The PANI shell acts as an electronic transport highway without obstructing the lithium storage of PPI.
JOURNAL OF POWER SOURCES
(2022)
Article
Green & Sustainable Science & Technology
Xianzhi Yin, Meiling Hou, Kai Zhu, Ke Ye, Jun Yan, Dianxue Cao, Dongming Zhang, Jiaxin Yao, Guiling Wang
Summary: A novel electrode of PdCu nanoparticles modified rGO framework was fabricated and exhibited excellent catalytic performance for DBHPFC. The superior performance of the optimized electrode can be attributed to its unique structure and the strong adsorption and bond-breaking ability of Pd nanoparticles.
Article
Chemistry, Multidisciplinary
Shengnan Zhang, Kai Zhu, Yinyi Gao, Tianzeng Bao, Hongbin Wu, Dianxue Cao
Summary: Polyimide, as a promising electrode material for lithium-ion batteries, has easy synthesis, customizable structure, and structural stability. The benzene ring structure of polyimide exhibits strong lithium storage capacity as a negative electrode material. We designed and synthesized a polyimide organic polymer (PBPAQ) with a unique spherical flower structure, which enhances the interaction between the electrode material and the electrolyte. The PBPAQ anode shows a specific discharge capacity of 738 mAh g(-1) after 100 cycles at 0.1 A g(-1), laying a foundation for future research on LIB anodes.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yong-Zheng Fang, Sainan Liang, Xu Zhang, Junwu Sang, Shasha Gao, Zhang Zhang, Kai Zhu, Dianxue Cao, Zhen Zhou
Summary: A stable 3D matrix is designed by coating a carbon skeleton with MXene, which can effectively induce the evolution of advantageous Li(110) facets of Li metal anodes, resulting in a dendrite-free anode interface and stable plating-stripping behaviours.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Borong Lu, Dong Wang, Chunlin Zhao, Kai Zhu, Jun Yan, Guiling Wang, Dianxue Cao, Ke Ye
Summary: Combining urea oxidation reaction (UOR) and hydrogen evolution reaction (HER) using catalyst CNCP-350 shows highly efficient catalytic activity in both UOR and HER, achieving efficient hydrogen production.
MATERIALS CHEMISTRY FRONTIERS
(2022)
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)
