Article
Materials Science, Multidisciplinary
M. T. Sarode, Umesh T. Nakate, S. U. Ekar, Yogesh T. Nakate, S. R. Jadkar, B. B. Kale, K. C. Mohite, Y. B. Khollam
Summary: This study demonstrates the photovoltaic properties of Eosin-Y dye-sensitized N-doped TiO2 photoanodes. N-doped TiO2 photoanodes were prepared using the sol-gel method followed by specific treatment. These photoanodes were then analyzed using various techniques. The results show that N doping leads to lattice disorder effects and the formation of midgap electronic states, resulting in a narrowing of the energy band gap. The presence of a large porous structure, which provides optimal visible light absorption and dye absorption, is considered crucial for achieving good photovoltaic performance.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Energy & Fuels
Ahad Hussain Javed, Nadia Shahzad, Muhammad Abdullah Khan, Muniba Ayub, Naseem Iqbal, Muhammad Hassan, Naveed Hussain, Muhammad Imran Rameel, Muhammad Imran Shahzad
Summary: The study presents the facile synthesis of ZnO nanostructures with different morphologies for use in DSSC devices. ZnO nanorice demonstrated superior performance under 1 sun conditions, attributed to its large surface area, better conductivity, and enhanced dye adsorption compared to other synthesized ZnO nanostructures.
Article
Chemistry, Multidisciplinary
Saif M. H. Qaid, Hamid M. Ghaithan, Huda S. Bawazir, Abrar F. Bin Ajaj, Khulod K. AlHarbi, Abdullah S. Aldwayyan
Summary: This study aims to synthesize various TiO2 nanocrystals, including nanosheets, nanorods, and nanoparticles, using a rapid hydrothermal method. The synthesized TiO2 nanocrystals exhibit high purity and exposed high-energy facets, resulting in high reactivity and large surface area. The {001} facets dominate in the nanosheets and nanorods, accounting for approximately 80% and 85% of the outer surface area, respectively.
Article
Materials Science, Multidisciplinary
A. Sulthan Ibrahim, P. Anbarasu, R. Mahendran, K. Rajendran, K. C. Sekhar, S. Sathish
Summary: A nanocomposite of CoS2 with multiwalled carbon nanotubes (MWCNTs) was prepared using a simple hydrothermal technique. The CoS2/MWCNT composite exhibited enhanced electrocatalytic activity and excellent electrochemical stability, making it a promising alternative for use in low-cost dye-sensitized solar cells (DSSCs).
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Mufutau Abiodun Salawu, Abeeb Abolaji Ayobami, Aderonke Adebisi, Sabastine Chinedu Ezike, Yusuf Olanrewaju Saheed, Aderemi Babatunde Alabi
Summary: This study fabricated dye-sensitized solar cells using Eosin red and Hibiscus sabdariffa, with the results showing different current and voltage outputs for the two types of cells, with slightly higher efficiency for Hibiscus sabdariffa-based cells compared to Eosin red-based cells.
Article
Chemistry, Physical
Hussain Gulab, Nusrat Fatima, Nadia Shahzad, Muhammad Imran Shahzad, Mohsin Siddique, Muhammad Hussain, Muhammad Humayun
Summary: In this study, different nanostructured semiconducting ZnO photoanodes were prepared and ZnO nanocomposites were synthesized using different methods. The results showed that ZnO synthesized through the CBD method had the highest transmittance and the lowest reflectance, while ZnO synthesized via the HT method exhibited the highest conversion efficiency. ZnO/CNTs was found to have the highest energy conversion efficiency among the ZnO nanocomposites.
Article
Environmental Sciences
Pavel Cesar Hernandez-Del Castillo, Jorge Oliva, Gabriela Robledo-Trujillo, Vicente Rodriguez-Gonzalez
Summary: This work investigates the structural, morphological, and photocatalytic properties of titanium dioxide (TiO2) and TiO2:NiIn (T-NiIn) coatings fabricated by spin coating. The results show that T-NiIn coatings exhibit higher effectiveness in the degradation of eosin-yellowish (EY) dye under both UV irradiation and solar light, and also show better stability after multiple cycles of reuse. The incorporation of nickel (Ni) and indium (In) in TiO2 coatings offers a feasible strategy to enhance the degradation of EY dye in drinking water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Mian Gao, Zhitao Shen, Gentian Yue, Chen Dong, Jihuai Wu, Yueyue Gao, Furui Tan
Summary: In this study, a novel synthesis method was developed to prepare efficient and economical non noble metal counter electrode (CE) electrocatalytic materials with good catalytic ability and stability for dye-sensitized solar cells (DSSCs). The resulting micro-nanostructured composite of CE showed high power conversion efficiency and a distinctive porous structure that facilitated fast charge transport.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
M. Gomathi, A. Sankar, S. Kannan, Mohd. Shkir, Vasudeva Reddy Minnam Reddy
Summary: In this study, a photoelectrochemical system based on low-cost carbon black and tin selenide composite material was proposed. The physicochemical properties of the composite were analyzed, revealing its excellent electrocatalytic and charge transport properties in the solar cell. Compared to the platinum counter electrode, the DSSC with the composite material showed significantly improved performance.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Materials Science, Ceramics
Sandeep B. Wategaonkar, Vinayak G. Parale, Rani P. Pawar, Sawanta S. Mali, Chang Kook Hong, Rohit R. Powar, Annasaheb Moholkar, Hyung-Ho Park, Balasaheb M. Sargar, Raghunath K. Mane
Summary: In this study, titanium dioxide nanoparticles doped with niobium were successfully synthesized and used as a photoelectrode in dye-sensitized solar cells to enhance performance through changes in crystallite size and band structure. The doping of niobium led to improvements in short-circuit current density and open circuit voltage, ultimately resulting in better power conversion compared to pure titanium dioxide.
CERAMICS INTERNATIONAL
(2021)
Article
Energy & Fuels
Hani Sayahi, Kioumars Aghapoor, Farshid Mohsenzadeh, Mina Mohebi Morad, Hossein Reza Darabi
Summary: This study investigated the impact of alkali concentration on the formation of novel one dimensional TiO2 nanostructures. The prepared nanostructures showed peculiar appearance and improved efficiency in dye-sensitized solar cells, demonstrating the potential for further applications in photovoltaic devices.
Article
Chemistry, Inorganic & Nuclear
K. Gomathi, S. Padmanathan, Atif Mossad Ali, A. T. Rajamanickam
Summary: A new Ni-doped molybdenum oxide counter electrode for dye-sensitized solar cells was proposed, showing high absorption in visible light and improved photoconversion efficiency. The optimized 10% NiMoO3 electrode exhibited outstanding performance, indicating potential for enhancing photovoltaic properties and electrocatalytic activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Energy & Fuels
Viplove Bhullar, Devarani Devi, Fouran Singh, Sundeep Chopra, A. K. Debnath, D. K. Aswal, Aman Mahajan
Summary: This study demonstrates the improvement of dye sensitized solar cell (DSSC) performance by inserting substitutional Ag into the photoanodes. The substitutional Ag implanted photoanodes show higher light absorption and reduced charge recombination, indicating a plausible mechanism for enhancing the photovoltaic performance of DSSCs.
Article
Chemistry, Physical
Farzaneh Khojasteh, Mansour Rezaee Mersagh, Hassan Hashemipour
Summary: The effects of doped nanoparticles and nanocomposites as photoanode on the performance of Dye synthesized Solar Cells were studied using various synthesis methods, XRD, FE-SEM, TEM, FTIR, optical absorption spectra and EIS analysis. The study showed that the photovoltaic properties of DSSCs largely depend on the compounds and structure of photoanodes. The DSSC based on Ag-doped SnO2/TiO2 exhibited the highest conversion efficiency due to lower charge transfer resistance, recombination, and higher short-circuit photocurrent.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Emma Panzi Mukhokosi, Maliki Maaza, Muhammed Tibenkana, Nandipha L. Botha, Loyce Namanya, I. G. Madiba, Michael Okullo
Summary: This study investigates the adsorption and optical properties of natural plant dye extracts as sensitizers for third-generation photovoltaic devices, providing valuable information for their application in dye-sensitized solar cells (DSSCs).
MATERIALS RESEARCH EXPRESS
(2023)
Article
Energy & Fuels
Ramesh J. Deokate, Harish S. Chavan, Suraj C. Bulakhe, Sachin B. Tanwade, Sarfraj H. Mujawar, Sawanta S. Mali, Chang Kook Hong, Hyunsik Im, Akbar I. Inamdar
Summary: Bimetallic electrocatalysts, particularly Mn1-xCux oxides, have shown great promise in high-performance electrocatalysis due to their synergetic effects and structural modifications. The optimized Mn0.50Cu0.50 catalyst exhibited low overpotential and high stability, making it a strong candidate for oxygen evolution reaction with abundant potential in realistic applications. The enhanced catalytic activity of the Mn0.50Cu0.50 electrocatalyst is attributed to the increased ECSA, formation of porous morphology, and enhanced electronic conductivity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Bhagyashri Bajirao Kamble, Paurnima Talele, Anita Kundlik Tawade, Kirankumar Kakchingtabam Sharma, Sawanta Subhash Mali, Chang Kook Hong, Shivaji Nemchand Tayade
Summary: A polyfluorene-molybdenum oxide nanocomposite was prepared in swollen liquid crystalline lamellar phase and loaded onto a glassy carbon electrode. The nanocomposite showed high sensitivity for the detection of glucose using differential pulse voltammetry and cyclic voltammetry techniques.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Parag R. Patil, Satish S. Patil, Tukaram D. Dongale, Rahul M. Mane, Sharad S. Patil, Sawanta S. Mali, Chang K. Hong, Popatrao N. Bhosale, Jaeyeong Heo, Kishorkumar Khot
Summary: SnS2 thin films were synthesized using a single-step hydrothermal method with various surface directing agents. The films exhibited direct allowed optical transitions and hierarchical nutshell surface morphologies. The structural analysis confirmed the formation of nanocrystalline SnS2 with a hexagonal crystal structure. The photoresponse properties, including enhanced photocurrent and photovoltage, were observed in the presence of surface directing agents, with the highest photoelectric conversion efficiency reaching 0.83%.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Satish S. Patil, Sameer N. Nadaf, Kishorkumar Khot, Rahul M. Mane, Suhas S. Mohite, Sawanta S. Mali, Chang Kook Hong, Popatrao N. Bhosale
Summary: In this study, Cu2Zn1-xInxSn(S,Se)(4) thin films were successfully synthesized using a hydrothermal route. The introduction of indium ions greatly improved the photocurrent, photovoltage, and conversion efficiency. The CZITSSe(x = 0.075 M) composition exhibited the best photoelectrochemical performance, with the highest photoconversion efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Jyoti Patil, Sawanta S. Mali, Chang Kook Hong
Summary: This study successfully deposited ethylammonium perovskite thin films under ambient conditions and found that ethylammonium bromide additive helps to obtain highly crystalline and large-grain perovskite films. Devices fabricated with an optimized amount of ethylammonium bromide exhibited the highest power conversion efficiency and demonstrated good long-term stability under thermal stress.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Sawanta S. Mali, Jyoti Patil, Sachin R. Rondiya, Nelson Y. Dzade, Julian A. Steele, Mohammad Khaja Nazeeruddin, Pramod S. Patil, Chang Kook Hong
Summary: This study reports a dual strategy for efficient and stable all-inorganic perovskite solar cells through bulk and surface passivation treatment. The approach demonstrates excellent performance in both small-area devices and large-area modules.
ADVANCED MATERIALS
(2022)
Article
Energy & Fuels
Navajsharif S. Shaikh, Sawanta S. Mali, Jyoti Patil, Ajij Mujawar, Jasmin S. Shaikh, Sumayya C. Pathan, Supareak Praserthdam, Chang Kook Hong, Pongsakorn Kanjanaboos
Summary: Researchers have developed a high-performance hybrid supercapacitor using aqueous magnesium-ion-based electrodes, which exhibit excellent specific capacitance and cycling stability. The use of magnesium ions as a replacement for commercial electrochemical supercapacitors overcomes issues such as high cost, toxicity, and inadequate energy density at high power density.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Komal B. Pisal, Bapuso M. Babar, Sarfraj H. Mujawar, Sawanta S. Mali, Chang Kook Hong, Shrikrishna D. Sartale, Laxman D. Kadam
Summary: This study focuses on the synthesis of mesoporous molybdenum disulfide nanosheets and investigates the effects of different pH conditions on their structural, morphological, and electrochemical properties. The results show that MoS2 prepared under acidic pH conditions exhibit higher specific surface area, specific capacitance, and lower overpotential in oxygen evolution reaction, making them a potential candidate for OER and supercapacitor applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Sameer N. Nadaf, Satish S. Patil, Vilasrao A. Kalantre, Sawanta S. Mali, Jyoti V. Patil, Chang Kook Hong, Sharadchandra S. Patil, Popatrao N. Bhosale, Sambhaji R. Mane
Summary: A one-step hydrothermal approach was used to synthesize Li+, Rb+, and In3+ intercalated PTA thin films. The Li-PTA, Rb-PTA, and In-PTA photocathodes showed good photoelectrochemical performance in a two-electrode cell configuration. The incorporation of Rb+ into the PTA Keggin structure resulted in an increase in crystallite size and a change in surface morphology.
Article
Materials Science, Multidisciplinary
Sawanta S. Mali, Jyoti Patil, Julian A. Steele, Young Hee Jung, Mohammad Khaja Nazeeruddin, Chang Kook Hong
Summary: In this study, we achieved enlarged grain size in ambient-stable black-phase CsPbI2Br thin films by adding guanidinium iodide as a volatile additive. The guanidinium iodide effectively participates in the cation-anion reaction process, resulting in larger grain size. The inorganic perovskite solar cells made with this additive showed excellent device performance and stability.
Article
Chemistry, Physical
Kiran K. Sanap, Sawanta S. Mali, Deepak Tyagi, Ajit N. Shirsat, Suhas B. Phapale, Suresh B. Waghmode, Salil Varma
Summary: Electroless noble metal deposition on conducting substrates is widely used to obtain desired films or coatings. In this study, wire-gauge-based Pt/Pd/Pt-Pd catalysts were developed using formaldehyde and sodium formate as reducing agents. Various surface pretreatment methods were employed, and it was found that the simultaneously deposited catalysts using formaldehyde had the shortest time duration. The prepared catalysts were characterized for noble metal deposition, coating kinetics, surface morphology, and binding energy, and it was found to be active for hydrogen mitigation applications in nuclear reactors.
Article
Energy & Fuels
Sawanta S. Mali, Jyoti V. Patil, Jiang-Yang Shao, Yu-Wu Zhong, Sachin R. Rondiya, Nelson Y. Dzade, Chang Kook Hong
Summary: Researchers developed a perovskite heterojunction with two different crystalline phases, achieving efficiencies of 21.5% and 18.4% on small-area solar cells and 18 cm(2) solar modules, respectively. This work paves the way for heterojunction structures in all inorganic and other halide perovskite compositions.
Article
Chemistry, Inorganic & Nuclear
Jyoti V. Patil, Sawanta S. Mali, Shivaji B. Sadale, Chang Kook Hong
Summary: Adding propylammonium bromide (PABr) and erbium (ErCl3) doping to CsPbI2Br perovskite can improve the photovoltaic performance and stability of inorganic cesium lead halide perovskite solar cells. The optimized composition (CsPb0.97Er0.03I2BrCl0.09) with 2 mg ml(-1) PABr additive shows high-quality surface morphology, high crystallinity, and reduced trap-state density. The resulting CsEr-PA-based inorganic perovskite solar cell achieves a power conversion efficiency (PCE) of 16.74%, higher than the bare (13.20%) and CsPb0.97Er0.03I2BrCl0.09-based perovskite devices (15.73%). Additionally, the CsEr-PA-based IPVSC device exhibits increased long-term stability, maintaining 90% of its initial PCE after 400 hours of thermal stress at 65 degrees C under ambient conditions. These dual stabilization strategies provide a new approach to enhance the photovoltaic performance of inorganic perovskite solar cells.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Sawanta S. Mali, Jyoti V. Patil, Julian A. Steele, Mohammad Khaja Nazeeruddin, Jin Hyeok Kim, Chang Kook Hong
Summary: This study presents a monolithic hybrid tandem solar cell with an all-organic blend as the rear subcell, using metal-ion doped all-inorganic perovskite front subcells and a solution-processed ternary organic blend rear subcell. The use of dynamic hot-air deposition technology allows the fabrication and testing of the solar cells entirely in the open air, and passivation and selection layer treatments improve efficiency and reduce open-circuit voltage loss. The solar cells achieved a maximum efficiency of 23.07% and retained over 90% of the initial efficiency after 600 hours of continuous illumination.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Jyoti V. Patil, Sawanta S. Mali, Chang Kook Hong
Summary: In this study, the incorporation of holmium ions into cesium lead halide perovskite has significantly improved the efficiency of solar cells and maintained high efficiency over a long period under ambient-air conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(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)
