Review
Chemistry, Physical
Louis Godeffroy, Paolo Ciocci, Jean-Francois Lemineur, Frederic Kanoufi
Summary: Electrodeposition is a popular technique for depositing nanoparticles and fabricating nanostructured electrodes. Recent advances in optical microscopy have enabled noninvasive and operando probing of objects at the nanoscale, making it of particular interest for electrodeposition studies.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Galina A. Tsirlina
Summary: This article collects and discusses various examples of electrodeposition accompanied by current and/or potential oscillations, and explores the possibilities of using periodic changes in electrochemical responses to control and monitor the size, morphology, and composition of electrodeposition products. A brief comparison with other template-free electrodeposition techniques is also presented.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Zhengfeng Zhang, Rui Feng, Rong Li, Junxiao Gong, Chunlu Jiang, Ruimin Yang, Min Feng, Yaokun Pan, Xiaowen Wang
Summary: In this paper, the electrochemical behavior of electrodeposited Cu in ultra-high acidity sulfate systems under different ultrasonic field powers was studied. The results show that the ultrasonic field significantly improves the mass transfer rate in the electrodeposition process, forming uniform and dense micro-nano layers.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Analytical
S. Esmailzadeh, T. Shahrabi, Y. Yaghoubinezhad, Gh. Barati Darband
Summary: This study investigates the mechanism of Ni-Se electrodeposition using pulse potential technique, analyzing the nucleation and growth mode under different concentrations and deposition potentials, as well as the dependence of pulse parameters on the nanostructured Ni-Se coating. The results demonstrate a comprehensive understanding of the deposition process and factors influencing the nucleation, growth, morphology, and stoichiometry of Ni-Se nuclei.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Xiaochuan Ma, Yaqiang Li, Peixia Yang, Jinqiu Zhang, Maozhong An
Summary: In this study, a novel suppressor, malachite green, was used to achieve the bottom-up growth of cobalt. The interaction between malachite green and metal substrate, as well as the interaction between malachite green and cobalt ions, was analyzed to illustrate the inhibition mechanism of malachite green. Electrochemical analysis confirmed the inhibitory effect of malachite green. The results of current transient analysis showed that an effective malachite green concentration gradient could be formed within blind vias, leading to the bottom-up growth of cobalt.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Electrochemistry
B. Cercado, Arnulfo Teran, J. C. Ballesteros, Jorge Vazquez-Arenas, Rene H. Lara, Stefan Talu, A. Mendez-Albores, G. Trejo
Summary: The concentration of silver nanoparticles (AgNPs) was found to influence the electrodeposition and nucleation mode of Cu-Zn/AgNPs composite coatings. The adsorption of AgNPs on the substrate surface was shown to shift the potential of the reduction peak for Cu(II) in a negative direction. Additionally, a decrease in nucleation kinetics parameters was observed with increasing AgNPs concentration in the electrolytic solution.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Irene Calderon, Ramon A. Alvarez-Puebla, Nicolas Pazos-Perez
Summary: This method achieves particles composed of a segregated alloy of silver coated with gold by controlled Ostwald ripening of small gold nanoparticles on the surfaces of larger silver particles. The prepared segregated nanoalloyed colloids combine the advantages of both gold and silver without their drawbacks.
Article
Chemistry, Multidisciplinary
Yongsheng Xu, Binbin Yao, Benzhuo Lou, Yinbo Fan, Erwei Wang
Summary: An anodic aluminum oxide (AAO) template is used to prepare highly ordered Co nanowire arrays with smooth and uniform surfaces. The Co nanowires exhibit high coercivity due to their strong shape anisotropy and magnetic dipolar interactions. Heat treatment results in the formation of a Co3O4 (shell)-Co (core) structure, which further increases the coercivity and remanence ratio of the nanowires.
CRYSTAL GROWTH & DESIGN
(2023)
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
Chemistry, Applied
Lutian Zhao, Yangge Guo, Cehuang Fu, Liuxuan Luo, Guanghua Wei, Shuiyun Shen, Junliang Zhang
Summary: By directly depositing highly monodispersed Pt-Ni alloy nanoparticles on a carbon substrate through electrodeposition and synthesizing carbon supported Pt-Ni alloy electrocatalysts under different applied electrode potentials, an optimal specific activity was achieved for the Pt-Ni/C electrocatalyst deposited at -1.73 V, showing potential for proton exchange membrane fuel cells.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Huitian Liu, Yamin Zhang, Chao Wang, Jacqueline N. Glazer, Zhongqiang Shan, Nian Liu
Summary: Aqueous Zn-ion batteries have shown promise as energy storage systems due to their cost-effectiveness, safety, and environmental friendliness. However, the growth of Zn dendrites poses a challenge to their application. This study systematically investigates the nucleation and growth behaviors of Zn, revealing a correlation between cycling conditions and the morphology of Zn growth, which can potentially improve the cycling life of Zn-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Vanessa Leffler, Sascha Ehlert, Beate Forster, Martin Dulle, Stephan Foerster
Summary: The heat-up synthesis routes are widely used for large-scale production of nanoparticles with narrow size distribution and high crystallinity. An in situ SAXS/WAXS experiment was conducted to investigate the nucleation and growth kinetics of iron oxide nanoparticles during heat-up synthesis, revealing a three-phase characteristic sequence and a complex intermediate phase. A nonclassical nucleation and growth theory was developed to account for an amorphous transient state and particle aggregation, allowing for a quantitative understanding of nanoparticle nucleation and growth kinetics.
Article
Materials Science, Multidisciplinary
Ziwei Ma, Fan Yang, Liangxing Jiang, Ming Jia, Fangyang Liu
Summary: Photoelectrochemical deposition technology enhances the anodization of electrolytic manganese dioxide by increasing peak current, reducing charge transfer resistance, and providing a greater driving force for nucleation and growth. It also reduces cell voltage, improves current efficiency, and lowers power consumption, ultimately benefiting energy saving and consumption reduction in the production process.
Article
Chemistry, Multidisciplinary
Yu Mao, Zuoheng Zhang, Hongfeng Zhan, Jianfei Sun, Yan Li, Zhenhuang Su, Yonghua Chen, Xingyu Gao, Xiao Huang, Ning Gu
Summary: The mechanism of coprecipitation formation of iron oxides has been a long-standing challenge. In this study, a specially designed gas/liquid mixed phase fluidic reactor was used to investigate the formation process. The results suggest that the initial Fe3+ ions hydrolyze to form Fe(OH)(3), which then dehydrates to yield alpha-FeOOH. In the presence of Fe2+ ions, alpha-FeOOH finally transforms to Fe3O4.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Mengyun Zhang, Pengfei Chang, Peixin Chen, Tao Hang, Ming Li, Yunwen Wu
Summary: A super-flat and unioriented cobalt film was achieved through a one-step electrodeposition process using benzenesulfinic acid as an additive. The unsaturated sulfite group in the additive played a key role in cobalt electroplating, resulting in improved film structure and preferential orientation growth of the (002) crystal plane.
APPLIED SURFACE SCIENCE
(2024)
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)