Article
Materials Science, Multidisciplinary
Heon-Young Ha, Kyeong-Won Kim, Seong-Jun Park, Chang-Hoon Lee, Tae-Ho Lee, Hyun-Uk Hong, Joonoh Moon
Summary: Fe-20Mn-11.5Al-1.4C-5Cr lightweight stainless steel (LWSS) has equivalent or better resistance to pitting corrosion compared to Fe-11Cr stainless steel (SS), which can be attributed to its protective passive film with higher Cr and Al content, thicker thickness, and lower concentration of point defects.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Aytac Yilmaz, Can Ozkan, Jilt Sietsma, Yaiza Gonzalez-Garcia
Summary: The study found that the ferrite-martensite microstructure negatively affected the passive layer properties of low carbon steel, with the passive film formed on ferrite-pearlite microstructure showing better barrier properties. This was attributed to the higher donor density of the passive layer on ferrite-martensite samples.
Article
Electrochemistry
Lupeng Liu, Senlin Li, Zhiming Gao, Hang Jia, Ye Wu, Wenbin Hu
Summary: The impact of chloride and pH on the passivation and corrosion behavior of Q235 steel in simulated concrete pore solutions was investigated. The results showed that increasing chloride concentration led to decreased corrosion resistance of the passive film. Lower pH values also increased the susceptibility of the passive film to corrosion. Alkaline solutions provided better protection for the steel in the presence of chloride.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Pedro Atz Dick, Robert G. Kelly
Summary: The influence of non-aqueous solvents on the corrosion behavior of passive alloys is still largely unknown. The corrosion of alloy C-22 was studied in organic aprotic solvents containing various water concentrations of HCl. It was found that C-22 is passive in nearly anhydrous solvents, but passivity breaks down when 0.1M HCl is present, leading to either uniform corrosion or pitting. Residual water can either stimulate or inhibit active dissolution depending on its concentration.
Article
Metallurgy & Metallurgical Engineering
Lupeng Liu, Senlin Li, Zhiming Gao, Hang Jia, Wenbin Hu
Summary: This study investigates the effects of chloride concentration and immersion time on the change process of passive films on Q235 steel in simulated concrete pore solution. The mechanism of chloride destroying passive film was analyzed.
ANTI-CORROSION METHODS AND MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Khashayar Morshed-Behbahani, Nika Zakerin, Pooria Najafisayar, Mahmoud Pakshir
Summary: The research found that samples with less internal stress formed denser and less defective passive films on their surfaces, attributed to higher concentration of metal ions at the metal/solution interface during anodization process. Prolonged passivation times resulted in more impurities being incorporated into the growing passive film, deteriorating its electrochemical properties.
Article
Chemistry, Multidisciplinary
Walid Ismail, Ghada Ibrahim, Mohamed A. Habib, Omar K. Alduaij, Mahmoud Abdelfatah, Abdelhamid El-Shaer
Summary: CdS thin films were grown on an FTO substrate at different temperatures using the hydrothermal method. The films exhibited a cubic structure with a (111) orientation. The films had a dense and uniform morphology, with strong adhesion to the substrate. The films showed green and red emission peaks, corresponding to free-carrier recombination and sulfur or cadmium vacancies. The CdS thin films had an optical absorption edge between 500 and 517 nm, and were n-type semiconductors. The resistivity to charge transfer decreased with temperature, while the flat band potential and donor density fluctuated with temperature. CdS thin films have potential in optoelectronic applications.
Article
Materials Science, Multidisciplinary
Guo Yi, Xinxin Liu, Chuanbo Zheng, Hongyue Zhang, Cheng Xu, Yu-Wei Cui, Shuan Liu
Summary: This study investigates the characteristics of passive films formed on as-cast Ti-6Al-4V before and after transpassivation by electrochemical methods. Different electrochemical behaviors were observed in the passivation and repassivation ranges, affecting the stability and growth rate of passive films. These results provide insights for potential biomedical applications of polarized as-cast Ti-6Al-4V under different potentials.
FRONTIERS IN MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Abraham A. Becerra Araneda, Mariano A. Kappes, Martin A. Rodriguez, Ricardo M. Carranza
Summary: Alloys 600 and 800 showed stable pitting corrosion, while Alloy 690 exhibited only metastable pitting, in 1 M NaCl plus thiosulfate deaerated solutions at the open circuit potential and room temperature. Stable pits nucleated near Ti-rich inclusions and increased in diameter after a certain period of time. Prepassivation treatment can inhibit this mechanism of pitting corrosion.
Article
Materials Science, Multidisciplinary
Zhi-Peng Liang, Kai-Xi Jiang, Bai-Ao Feng, Lin Li, Ting-An Zhang
Summary: The corrosion resistance of brass alloy in a corrosion soil environment decreases with the increase of applied anodic potential. X-ray photoelectron spectroscopy results indicate that the passive film is mainly composed of metal oxide.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2022)
Article
Materials Science, Multidisciplinary
K. Wang, A. D. Lan, J. W. Qiao
Summary: The study reveals the excellent corrosion resistance of Al0.1CoCrFeNi high entropy alloy in chloride-containing solutions, with intergranular corrosion as the main feature. The presence of chloride anions leads to a decline in passivation film quality, with significant amounts of elements existing in atomic states within the passive films.
FRONTIERS IN MATERIALS
(2021)
Article
Chemistry, Physical
Chang Liu, Yu Gao, Kai Chong, Fuqiang Guo, Dongting Wu, Yong Zou
Summary: This paper investigates the microstructure and corrosion resistance of FeCoCrNiNbx high-entropy alloys in a chloride ion environment. The results show that FeCoCrNiNb0.15 alloy exhibits the best corrosion resistance, with significantly lower corrosion current density and corrosion rate compared to 316LSS. The P-N junction improves the corrosion resistance of the passive film of FeCoCrNiNb0.15, while the passive film of FeCoCrNi mainly exhibits n-type semiconductor characteristics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Zhu Wang, Guo-Hui Zhang, Xue-Hua Fan, Jie Jin, Lei Zhang, Yan-Xia Du
Summary: The stability of passive films on the high-entropy alloy was influenced by species stability and vacancy concentration, with the stability of Fe increasing as pH rose.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
A. Yilmaz, K. Traka, S. Pletincx, T. Hauffman, J. Sietsma, Y. Gonzalez-Garcia
Summary: The study revealed higher microstructural defect density on cold-rolled samples, leading to decreased barrier properties of passive films. The increase in microstructural defects was found to result in a lower relative quantity of protective gamma-Fe2O3 in passive films.
Article
Materials Science, Multidisciplinary
Yingrui Liu, Hong Du, Xiao Zuo, Peng Guo, Li Liu, Kwang-Ryeol Lee, Aiying Wang, Peiling Ke
Summary: The study evaluated the corrosion behavior of the multilayered Cr/GLC coating in artificial seawater under different pressure conditions, showing that the corrosion resistance was better at 1 atm but deteriorated significantly at 300 atm. The results suggest the importance of fabricating dense coatings for deep-sea applications.
Article
Electrochemistry
S. Marcelin, Z. Zhang, B. Ter-Ovanessian, B. Normand
Summary: The power law model was utilized to analyze the constant-phase-element behavior of passive films, allowing the variation of resistivity with passive film thickness to be obtained. A methodology for analyzing impedance diagrams was described to avoid the need for numerous unknown parameters in the model. The dielectric properties of passive films and the duplex character of these layers were discussed, illustrating the contribution of inner dense oxide and outer hydroxide layers to the resistivity profiles. Additionally, information on the evolution of passive film behavior on 316L stainless steel under irradiation was provided as an example.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Kathleen Jaffre, Benoit Ter-Ovanessian, Hiroshi Abe, Nicolas Mary, Bernard Normand, Yutaka Watanabe
Summary: Dry grinding of 304L stainless steel results in ultrafine grain layer and strong plastic deformation, with high residual compressive stresses and roughness compared to mechanical polishing. The passive behavior of the steel is influenced by the surface state, semiconductor properties, and thickness of the passive films, indicating the importance of surface treatment in determining corrosion resistance.
Article
Chemistry, Physical
Yu Shi, Sheng Yuan, Benoit Ter-Ovanessian, Kurt Hermange, Ying Huo, Bernard Normand
Summary: The addition of hexagonal boron nitride nanosheets into a coating matrix can improve the barrier effect significantly. The size of the nanosheets also plays a role in influencing the barrier performance.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Dwaipayan Mallick, Nicolas Mary, V. S. Raja, Bernard Normand
Summary: The banded microstructure and higher C content in DP steels resulted in higher H diffusivity, while the higher fraction of H present in stronger traps in CP steels suggests better hydrogen embrittlement resistance. The non-uniform distribution of H in the specimens with higher concentration near the charging surface was also observed.
Article
Chemistry, Physical
I. Elferjani, G. Serre, B. Ter-Ovanessian, B. Normand
Summary: The study investigates the chemical degradation of the Nafion membrane by the Fenton mechanism, exploring the influence of ferrous ions Fe2+ on the membrane's degradation and the transport of ionic species between bipolar plates and the membrane. The coupled degradation model is implemented in a PEMFC performance simulator for simulating the degradation process during NEDC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Zhiheng Zhang, Benoit Ter-Ovanessian, Sabrina Marcelin, Jules Galipaud, Bernard Normand
Summary: The study investigated the passive and transpassive behavior of binary Ni-xCr alloys and ternary Ni-xCr-8Fe alloys in a borate buffer solution, revealing that chromium content and iron addition directly influenced the transpassivation process at higher potentials. X-ray photoelectron spectroscopy analysis provided complementary information to explain the role of alloying elements in the passivation mechanisms of Ni-based alloys in borate buffer solution.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Charles Rasse, Nicolas Mary, Hiroshi Abe, Yutaka Watanabe, Bernard Normand
Summary: This study investigates the erosion-corrosion behavior of carbon steel under different abradant characteristics, showing that particle size and concentration have significant impacts on the erosion-corrosion rate. Experimental results under high flow rates and different jet angles indicate that the degradation rate of carbon steel increases with the increase of abradant concentration, but a decrease in rate is observed within a specific concentration range.
Article
Materials Science, Multidisciplinary
Chloe Comas, Francois Huet, Kieu Ngo, Marion Fregonese, Hassane Idrissi, Bernard Normand
Summary: This study monitored the propagation of localized corrosion on API 5L X65 carbon steel in a hydrogenocarbonated solution containing chloride ions during long immersion times using electrochemical noise measurements. It found that the noise impedance decreased and stabilized in alignment with the potential over time.
Article
Chemistry, Physical
G. J. Ayemi, S. Marcelin, S. Therias, F. Leroux, B. Normand
Summary: Ethylene diamine-N,N'-disuccinate (EDDS) is successfully intercalated into layered double hydroxide (LDH) sheets, resulting in the hybrid assembly [Zn2Al(OH)6]+ [EDDS]4-0.25 2H2O (LDH-EDDS4-). The presence of functionalized LDH-EDDS4- significantly decreases the surface reactivity of carbon steel in a neutral and aerated sodium chloride solution. The synergy effect between Zn2+ cations and EDDS4- anions is highlighted, and SEM and visual observations confirm the efficiency of hybrid LDH-EDDS4- in protecting the carbon steel surface from corrosion.
APPLIED CLAY SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Ying Xiao, Junlei Tang, Yingying Wang, Bing Lin, Zhen Nie, Yunfei Li, Bernard Normand, Hu Wang
Summary: The corrosion behavior of 2205 duplex stainless steel in sulfide-containing NaCl solutions at different pH values was investigated. It was found that the addition of Na2S could improve the pitting resistance of 2205 DSS in 0.8 g/L NaCl solutions, but had different effects in 35 g/L NaCl solutions depending on the pH value.
Article
Chemistry, Multidisciplinary
Ying Huo, Yun Long, Sheng Yuan, Berangere Toury, Bernard Normand, Clementine Fellah, Lucian Roiban, Stephane Benayoun
Summary: Graphene has been widely used as a nanofiller in advanced electronic devices and nanocomposite materials. The influence of polymer concentration on graphene dispersion was studied, and a model to describe the polymer adsorption process was proposed. Understanding the polymer physisorption on 2D materials is important for producing nanocomposites with controlled nanosheet/polymer ratios and structures.
Article
Engineering, Mechanical
T. Vie, S. Deschanel, N. Godin, B. Normand
Summary: Acoustic Emission (AE) is used to monitor the fatigue behavior of specimens made of different coating combinations. The type of coating applied significantly affects the damage process and fatigue lifetime. AE-based indicators are defined to assess the overall damage state of the specimens. The specific times obtained from AE monitoring provide information on the Remaining Useful Lifetime (RUL) of the material.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Chemistry, Physical
Sihan Liang, Yingying Wang, Bernard Normand, Yingchun Xie, Junlei Tang, Hailong Zhang, Bing Lin, Hongpeng Zheng
Summary: The aluminum-basalt fiber composite coating was prepared using basalt fiber as the spraying material through cold-spraying technology. Numerical simulation based on Fluent and ABAQUS was used to study the hybrid deposition behavior. The microstructure of the composite coating was observed using SEM, focusing on the deposited morphology of basalt fibers, the distribution of basalt fibers, and the interaction between basalt fibers and metallic aluminum. The results showed different morphologies of the basalt fiber-reinforced phase and two modes of contact between aluminum and basalt fibers. In addition, the composite coating exhibited high wear resistance and high hardness according to Rockwell hardness test and friction-wear test.
Article
Electrochemistry
H. Klinklin, S. Marcelin, B. Ter-Ovanessian, M. Monnot, B. Normand
Summary: Nickel-base alloy 825 is susceptible to crevice corrosion in seawater. A modified thin-layer cell was used to simulate crevice corrosion and a new approach for monitoring material behavior was developed. Corrosion potential, polarization resistance, and electrolyte resistance were found to be effective indicators for tracking different stages of the crevice corrosion process. The results were discussed in terms of cathodic process kinetics. The tested conditions validate the importance of the developed methodology for this setup.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Review
Chemistry, Physical
Sihan Liang, Junlei Tang, Yingying Wang, Tigang Duan, Bernard Normand, Tongzhou Chen
Summary: In this paper, we review the current research on burn-resistant surface technologies of Ti alloys and propose a new method of bimetallic coating by cold spraying and low-temperature heat treatment, which has the potential to solve the problem of spontaneous combustion of aerospace engine parts.
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)
