Article
Chemistry, Multidisciplinary
Asmaa Kadim Ayal, Zulkarnain Zainal, Araa Mebdir Holi, Hong-Ngee Lim, Zainal Abidin Talib, Ying-Chin Lim
Summary: In this study, titania nanotubes thin film electrodes were used as the absorber layer for CdSe, with three different electrochemical deposition techniques compared. The results showed that using pulse electrodeposition led to a more uniform distribution of CdSe loaded onto the TiO2 nanotube arrays, resulting in a substantial improvement in the performance of the semiconductor heterostructures compared to the other techniques.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
So-Young Joo, Yunju Choi, Heon-Cheol Shin
Summary: This study reports the formation of a unique, hierarchical, three-level pore structure through the processes of electroplating and dealloying. The co-deposition of Cu-Mn allows the formation of Cu-rich and Mn-rich regions. By removing Mn and its oxides through dealloying, Cu with a multi-porous structure is formed. The interconnected pore networks are proposed to be formed due to the growth of Cu and the rapid depletion of Cu ions during electroplating. This pore structure provides a large surface area and open pore structure, making it significant for future applications in functional chemistry and electrochemistry.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hai-Rui Shen, Xiao-Mei Zheng, Qiao-Ling Kang, Peng Dai, Xin-Yue Han, Miao-Gen Chen, Bagavathi Muniyandi, Qiong Wu, Guo-Ping Tu, Peng-Yue Zhang, Rui Huang, Li Deng, Jun-Tao Li, Ling Huang, Shi-Gang Sun
Summary: An advanced pulse potential electrodeposition method was used to prepare binder-free Sb-Zn alloys on copper foil, forming a self-supported anode for sodium-ion batteries. The Sb-Zn alloy anodes showed remarkably stable and robust Na-ion storage performance. Compared with the constant potential electrodeposition method, the Sb-Zn composite prepared using pulse potential electrodeposition exhibited higher charge/discharge capacities, a higher rate capability, and superior cycle performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Coatings & Films
F. Geramipour, S. M. Mousavi Khoei, H. Shooshtari Gugtapeh
Summary: The research discovered that applying pulse electrodeposition with a triangular waveform to Ni-Cu alloy coatings resulted in the best corrosion resistance, while using a ramp waveform led to the lowest surface roughness and grain size. Additionally, the corrosion resistance of the Ni-Cu alloy coatings was found to depend significantly on the molar fraction of Cu in solid solution and the crystallographic orientation, with the highest corrosion resistance associated with the largest molar fraction of Cu in solid solution and growth of grains at (111) orientation.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Electrochemistry
Bincy George Abraham, Raghuram Chetty
Summary: This study identified an optimum deposition condition for platinum catalysts on a titanium substrate for enhanced activity towards methanol oxidation reaction (MOR), with pulse electrodeposition techniques showing more efficient deposition compared to constant applied waveform techniques. The results indicate that Pt catalysts deposited by pulse electrodeposition with a low-duty cycle provide high catalytic activity towards MOR. These findings highlight the importance of optimal deposition techniques and parameters for achieving better and more efficient metal deposition.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Pengwei Ren, Huimin Meng, Qijun Xia, Zhongzheng Zhu, Mingtao He
Summary: The tribocorrosion behavior of Ti6Al4V alloy in a simulated deep-sea environment was investigated, revealing that the tribocorrosion rate increases with hydrostatic pressure and potential. This increase in tribocorrosion rate is mainly due to delamination wear and a synergistic effect of mechanical wear at higher hydrostatic pressures.
Article
Materials Science, Coatings & Films
Yen Ngoc Nguyen, Jisun Yoon, Jiyeon Shin, Injoon Son
Summary: Pd-Ag alloy electrodeposit is proposed as a protective coating for electrical contacts. The study investigates the effect of Ag content on the contact resistance and wettability of the coatings. It is found that increasing the Ag content reduces the contact resistance but heating the coatings increases it. Additionally, the wettability of the coatings with solder is improved with increased Ag quantity.
SURFACE ENGINEERING
(2022)
Article
Electrochemistry
Hsin-Yu Chen, Yan-Syun Huang, Chien-Neng Liao
Summary: A dense array of nanotwinned copper nanowires with coherent twin boundaries perpendicular to the length direction was successfully deposited in porous anodic aluminum oxide vias by pulse electrodeposition. By changing the pulse on/off duration, the degree of (111) growth texture and twinning structure of the nanowires can be controlled. Facet-dependent crystal growth and stress accumulation/relaxation behavior during pulse deposition activate nanoscale twinning in the bottom-up filling process.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Green & Sustainable Science & Technology
Kaiyan Wang, Yang Li, Haiyang Shi, Feng Chen, Ping Wang, Xuefei Wang
Summary: Modifying Pd cocatalysts is an effective strategy to improve H2O2 production of photocatalysts, however, it can lead to the further reduction of H2O2. In this study, Cu-Pd alloy cocatalysts were selectively modified on the electron-rich facets of BiVO4 to weaken the adsorption energy of oxygen and increase the activity and selectivity of O-2 reduction to H2O2. The optimized Cu-Pd/BiVO4 photocatalyst demonstrated significantly higher H2O2 production compared to BiVO4 with Pd cocatalyst.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Materials Science, Multidisciplinary
Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Sachiko Hiromoto, Eiji Akiyama
Summary: The environment-assisted cracking behavior of AZ31 magnesium alloy was studied through tensile tests in a Na2B4O7·10H2O solution containing NH4SCN and in air at cathodic and corrosion potentials. Mechanical properties of AZ31 were unaffected by the environment at an initial strain rate of 10-4s-1, but degraded in the solution at an initial strain rate of 10-6s-1. Higher potentials resulted in smaller total elongation, while positive potential shift increased the average hydrogen absorption rate. These findings indicate that environment-assisted cracking becomes more severe under relatively high potential due to corrosion and enhanced hydrogen absorption.
Article
Chemistry, Multidisciplinary
Guixian Li, Shoudeng Wang, Hongwei Li, Peng Guo, Yanru Li, Dong Ji, Xinhong Zhao
Summary: Palladium-copper alloy nanostructured catalysts loaded on carbon support have shown high activity and stability in alkaline direct methanol fuel cells. This study presents the synthesis and characterization of PdxCuy/XC-72 nanoalloy catalysts, with different ratios of Pd and Cu, using a one-step chemical reduction method. The catalysts were characterized using various analytical techniques, and the results indicate that Pd3Cu2/XC-72 catalysts exhibit superior electronic structure, leading to higher mass activity enhancement and improved durability for methanol oxidation reaction.
Article
Materials Science, Multidisciplinary
A. B. Abdel-Aziz, Adham A. El-Zomrawy, M. M. B. El-Sabbah, I. M. Ghayad
Summary: Lead coatings were deposited from a solution containing lead salt and methane sulfonic acid. Organic additives were used to enhance the surface morphology of the coatings. The optimized parameters affected the quality of the coatings. The characterized coatings showed dense layers of lead or lead-tin alloy. The electrochemical properties of the coatings were investigated and compared with coatings obtained from a different solution.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Zhongzheng Zhu, Huimin Meng, Pengwei Ren
Summary: CoNiWReP high entropy alloy coatings were prepared using DC and PC electrodeposition technologies in aqueous solution. The coatings are silver-white in appearance, exhibit good adhesion to the substrate, and have a cathodic protection effect for Cu substrate.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Sandeep Gupta, Anoop Mampazhasseri Divakaran, Kamlendra Awasthi, Manoj Kumar
Summary: This paper reports Na3BiO4-Bi2O3 mixed oxide nanoplates for carbon dioxide gas sensing applications. The nanoplates show a percentage response of more than 100% at 30 psi gas pressure, increasing to approximately 277% at 90 psi at 100 degrees C.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Physics, Applied
Tianyu Li, Xiao Yan, Xiaolong Fang, Puhang Jin, Jiaqi Li, Kazi Fazle Rabbi, Nenad Miljkovic
Summary: Jet electrolyte micromachining (JEMM) is a technology that uses water-jet-assisted electrochemistry for metal processing, allowing for the creation of microgrooves and micropillars with controllable length scales and topologies on metallic substrates. The technology can perform subtractive and additive manufacturing tasks, including micronozzle tool preparation, by controlling electrode polarity and electrolyte, enabling precise and efficient micromanufacturing for a variety of applications.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Matteo Duca, Andrew Wang, Gaetan Buvat, Nicolas Sacre, Sebastien Garbarino, Daniel Guay
JOURNAL OF CATALYSIS
(2019)
Article
Chemistry, Multidisciplinary
Junyu Liu, Luwei Peng, Yue Zhou, Li Lv, Jing Fu, Jia Lin, Daniel Guay, Jinli Qiao
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Physical
Gaetan Buvat, Mohammad J. Eslamibidgoli, Azza Hadj Youssef, Sebastien Garbarino, Andreas Ruediger, Michael Eikerling, Daniel Guay
Article
Chemistry, Physical
Mengyang Fan, Sagar Prabhudev, Sebastien Garbarino, Jinli Qiao, Gianluigi A. Botton, David A. Harrington, Ana C. Tavares, Daniel Guay
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Chemistry, Physical
Gaetan Buvat, Mohammad J. Eslamibidgoli, Sebastien Garbarino, Michael Eikerling, Daniel Guay
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Ankita Jadon, Sagar Prabhudev, Gaetan Buvat, Sai Gourang Patnaik, Mehdi Djafari-Rouhani, Alain Esteve, Daniel Guay, David Pech
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Mengyang Fan, Mohammad J. Eslamibidgoli, Xinwei Zhu, Sebastien Garbarino, Ana C. Tavares, Michael Eikerling, Daniel Guay
Article
Chemistry, Physical
Sai Gourang Patnaik, Jensheer Shamsudeen Seenath, David Bourrier, Sagar Prabhudev, Daniel Guay, David Pech
Summary: In this study, porous metallic micro-structures with a nanodendritic network coated with a new RuOxNySz material were developed using a facile optimized electrodeposition process. These structures exhibited high areal capacitance, stable performance, remarkable Li+ storage capability, and can inspire large-scale production of 3D porous electrodes for microbatteries and microsupercapacitors.
ACS ENERGY LETTERS
(2021)
Article
Materials Science, Multidisciplinary
S. Mohammadkhani, V Jalilvand, B. Davis, G. H. Gauthier, A. Dolatabadi, C. Moreau, L. Roue, D. Guay
Summary: In this study, protective (Co, Ni)O coatings were deposited on CuNi-Fe alloys using the HVOF process to enhance their corrosion resistance at high temperatures. The behavior of the coatings and substrate compositions were studied, showing that coatings with higher nickel content can slow down oxygen and copper diffusion, while nickel-rich alloys form a NiFe2O4 scale that decreases in thickness with increased nickel content in the coatings.
Article
Chemistry, Physical
Cybelle Oliveira Soares, Gaetan Buvat, Yoandris Gonzalez Hernandez, Sebastien Garbarino, Matteo Duca, Andreas Ruediger, Guy Denuault, Ana C. Tavares, Daniel Guay
Summary: Au (001) thin films of varying thickness were deposited on MgO (001) substrates using pulsed laser deposition. Analysis revealed nonmonotonic dependence of lattice parameters on film thickness and showed that the electrocatalytic activity for ORR in alkaline electrolytes increased with lateral coherence length of the films.
Editorial Material
Chemistry, Physical
Lotfi Benali Karroubi, Sai Gourang Patnaik, Birhanu Desalegn Assresahegn, Botayna Bounor, Chau Cam Hoang Tran, Sakeb Hasan Choudhury, David Bourrier, Daniel Guay, David Pech
ENERGY STORAGE MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Sakeb Hasan Choudhury, Guillaume Vignaud, Pascal Dubreuil, Birhanu Desalegn Assresahegn, Daniel Guay, David Pech
Summary: In this study, uniform RuO2 coverage has been successfully achieved on porous gold and platinum electrodes through atomic layer deposition (ALD), highlighting the importance of the chemical composition of the porous substrate for conformal deposition.
Article
Chemistry, Physical
Frederic Stein, Sebastian Kohsakowski, Ricardo Martinez-Hincapie, Sven Reichenberger, Christoph Rehbock, Viktor Colic, Daniel Guay, Stephan Barcikowski
Summary: The catalytic activity and toxicity of mixed-metal nanoparticles depend on their surface composition. This study analyzed the electrochemical properties and redox chemistry of different gold-silver alloy nanoparticles with varying gold content. The results showed that the surface gold content influenced the oxygen reduction reaction and the stability of the particles. XPS analysis revealed the accumulation of the minor constituent on the surface of the alloy nanoparticles. The equimolar Au50Ag50 composition exhibited particularly low reactivity and high chemical stability.
FARADAY DISCUSSIONS
(2023)
Article
Chemistry, Physical
M. Hao, V. Charbonneau, N. N. Fomena, J. Gaudet, D. R. Bruce, S. Garbarino, D. A. Harrington, D. Guay
ACS APPLIED ENERGY MATERIALS
(2019)
Article
Chemistry, Physical
Nidhal Zouaoui, Benjamin D. Ossonon, Mengyang Fan, Dilungane Mayilukila, Sebastien Garbarino, Glynis de Silveira, Gianluigi A. Botton, Daniel Guay, Ana C. Tavares
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
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)