Article
Electrochemistry
Serge Kernbach
Summary: The para- and ortho-isomers of water and dissolved molecular oxygen have different spin configurations and can be excited to change macroscopically measurable properties of aqueous solutions. This study characterizes the ionic dynamics and surface tension effects of dissolving carbon dioxide and hydrogen peroxide in pure water using electrochemical impedance spectroscopy. The results show distinguishable reaction pathways and anomalous quasi-periodical fluctuations, indicating potential applications in affordable electrochemical sensors and quantum biology.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
V. Bongiorno, S. Gibbon, E. Michailidou, M. Curioni
Summary: This study explores the potential use of machine learning algorithms to interpret electrochemical impedance spectroscopy (EIS) data, focusing on classification and fitting scenarios. The traditional approach based on equivalent circuit modeling is difficult to automate and has limited industrial applications.
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
Electrochemistry
Negar Moradighadi, Srdjan Nesic, Bernard Tribollet
Summary: Electrochemical Impedance Spectroscopy (EIS) is a useful tool for studying electrochemical reactions and mechanisms, with the choice of DC potential being crucial for studying specific reactions; a new model has been developed in this study to predict which reaction dominates the measured impedance at specific potentials.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Dan Zhou, Yi-Xiang Chen, Xiao-Yu Yuan, Zhuang-Lei Chai, Jin-Ku Liu
Summary: This study successfully achieved the precise design of non-chemometric single-phase metal oxides (MVMOs) using the gradient intrinsic reduction method. The correlation between oxygen vacancies and electrochemical anticorrosion protection was explored systematically. The results confirmed the decisive role of periodic oxygen vacancies in electrochemical anticorrosion.
INORGANIC CHEMISTRY
(2022)
Review
Polymer Science
Saul Vallejos, Miriam Trigo-Lopez, Ana Arnaiz, Alvaro Miguel, Asuncion Munoz, Aranzazu Mendia, Jose Miguel Garcia
Summary: The trend in the use of polymers in food and beverage packaging is towards the design and preparation of advanced polymers that can act as active packaging, protecting against contaminants and extending the shelf-life of goods. Polymers can also be used as sensory materials to detect and indicate the presence of target species.
Article
Materials Science, Multidisciplinary
R. Gonzalez-Parra, A. Covelo, M. Hernandez
Summary: The study investigated the influence of potentiodynamic scan rate on the formation of artistic patinas on a quaternary copper alloy, revealing the composition and characteristics of patinas formed at different scan rates. The results showed that patinas formed at lower scan rates exhibit better corrosion protection effects.
Article
Chemistry, Analytical
Pia Binder, Franziska V. Oberhaus
Summary: Self-assembled monolayers (SAMs) are widely used for various applications, but SAMs that can effectively inhibit nonspecific binding for electrochemical sensors have not been developed. In this study, diglycolamine was introduced for modifying electrodes with outstanding antifouling performance. The sensor design, consisting of diglycolamine and an aptamer, is easy to prepare, low-cost, and highly specific. The method can be applied to various detection techniques and has the potential to change the way we analyze complex biological samples.
ANALYTICA CHIMICA ACTA
(2023)
Article
Electrochemistry
Linqian Wang, Darya Snihirova, Min Deng, Bahram Vaghefinazari, Daniel L. Hoeche, Sviatlana V. Lamaka, Mikhail L. Zheludkevich
Summary: Tribo-electrochemical impedance spectroscopy (Tribo-EIS) measurements were conducted on pure Mg in NaCl solution to identify the origin of two time constants observed in standard EIS measurements. The study revealed that the high frequency time constant is associated with the barrier properties of the MgO-based surface film, while the middle frequency time constant is attributed to the charge transfer process.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Jaehwan Kim, Ki-Tae Park, Tae Ho Kwon
Summary: To cope with the premature deterioration of reinforced concrete structures caused by chloride-induced corrosion, estimating the corrosion rate and calculating transport parameters is necessary. However, interpreting the impedance response of steel embedded in concrete is still challenging. Concrete acts as a good barrier but can contain unexpected or invisible variables that hinder electrical measurements. Overcoming these limitations requires confirming impedance responses under controlled variable cases.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Sourav Kr. Saha, Tomoya Takano, Koji Fushimi, Masatoshi Sakairi, Ryosuke Saito
Summary: The curing behavior of cement paste and formation of passive film on iron were studied using electrochemical techniques and X-ray photoelectron spectroscopy (XPS). The open circuit potential of iron was monitored in cement paste with a pH of -13 for 56 days, and the results showed that the iron was kept in a passive state. The results of electrochemical impedance spectroscopy revealed an increasing trend of film and cement paste resistance with curing time. XPS analysis provided evidence that the formation of ferric hydroxide and ferric oxide was efficient in passivating the iron. The iron surface receded from corrosion due to the high-alkaline environment of cement paste and the formation of a passive film.
SURFACES AND INTERFACES
(2023)
Article
Electrochemistry
M. Moradi, G. Ghiara, R. Spotorno, D. Xu, P. Cristiani
Summary: This study used electrochemical impedance spectroscopy to analyze and discuss case studies on microbial corrosion and microbial corrosion inhibition. The results showed that bacterial biofilms have a significant impact on both the corrosive and inhibitive processes, but do not constitute an additional time constant.
ELECTROCHIMICA ACTA
(2022)
Article
Metallurgy & Metallurgical Engineering
S. Al Bacha, I. Aubert, M. Zakhour, M. Nakhl, J. L. Bobet
Summary: The hydrolysis of Mg-based materials is an ideal solution for clean energy production, with AlCl3 identified as the most effective ball milling additive to enhance the reaction. The best results were achieved by milling AZ91 at 350 rpm, reaching an efficiency of 75% of its theoretical H2 generation capacity.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Engineering, Chemical
Funan Sun, Pengju Han, Bin He
Summary: The initial corrosion evolution process of X80 steel exposed to silty soil mixed with NaCl at increasing salinities and temperatures was investigated. Based on the electrochemical testing and microscopic observations, the analysis results indicate that the dissolution rate is limited by cathodic processes in moist soil. The migration and accumulation of Cl- ions on the oxide film surface are driven by soil water potential after soil freezing, resulting in the decomposition of the film. The release of Fe2+ accelerates the passivation rate and the growth of salt and ice water crystals on the steel-soil interface expands the void between the soil particles, thereby further increasing the diameter of the corrosion pit.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jesus Manuel Jaquez-Munoz, Citlalli Gaona-Tiburcio, Ce Tochtli Mendez-Ramirez, Miguel Angel Baltazar-Zamora, Francisco Estupinan-Lopez, Raul German Bautista-Margulis, Josefina Cuevas-Rodriguez, Juan Pablo de los Rios, Facundo Almeraya-Calderon
Summary: The anodization of titanium is an effective method to protect titanium and its alloys from corrosive environments. In this study, the electrochemical corrosion behavior of Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V alloys anodized in 1M H2SO4 and H3PO4 solutions was evaluated. The anodized samples showed changes in E-corr values and a higher passivation zone. EIS analysis revealed a higher resistance for samples anodized in H3PO4 and Ti-6Al-2Sn-4Zr-2Mo.
Article
Chemistry, Physical
Zhong Wu, Jingyun Chen, Qifeng Li, Da-Hai Xia, Yida Deng, Yiwen Zhang, Zhenbo Qin
Summary: By modifying the bonding between graphene and Fe3O4, a magnetic graphene-Fe3O4 nanostructured composite was obtained, which could be orientated in an epoxy resin matrix under a magnetic field induction. The study found that the thermal conductivity of the composites was highest at a mass ratio of 2:1, and they exhibited good thermal stability and electrical insulation properties.
Article
Materials Science, Multidisciplinary
Qifeng Li, Zhenbo Qin, Jingyun Chen, Da-Hai Xia, Yida Deng, Yiwen Zhang, Zhong Wu, Wenbin Hu
Summary: The study shows that the Gr/Cu composite film with a layered structure achieved through layering electrodeposition method significantly enhances the strength compared to pure Cu film. The influence of electrodeposition time on the distribution structure of Gr layer was also investigated in this study.
Article
Metallurgy & Metallurgical Engineering
Zhong Wu, Qing Hu, Zhenbo Qin, Yiwen Zhang, Da-Hai Xia, Wenbin Hu
Summary: The study investigated the effects of plastic deformation on the mechanical strength and corrosion resistance of Nickel-aluminum bronze (NAB) alloys in a 3.5% NaCl solution. The results showed that plastic deformation significantly improved the microhardness and yield strength of NAB, but led to a decrease in corrosion resistance during long-term immersion corrosion. This was attributed to higher internal stress in the corrosion product film caused by larger plastic deformation, resulting in premature film peeling and loss of protective effects on the alloy substrate.
ANTI-CORROSION METHODS AND MATERIALS
(2021)
Article
Chemistry, Physical
Yuting Lv, Jiawei Guo, Guosong Zhang, Lianmin Cao, Xueyan Sun, Zhenbo Qin, Da-Hai Xia
Summary: This study investigated the electrical properties of corrosion protective film of each phase in as cast NiAl bronze alloy and its effect on selective phase corrosion behavior in different NaCl salt solutions based on pH levels. The results showed that pH 3.5 led to the best corrosion resistance, while below and above 3.5 exhibited completely different SPC behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Zhenbo Qin, Xuehan Li, Da-Hai Xia, Yiwen Zhang, Zhong Wu, Wenbin Hu
Summary: This paper aims to clarify the effect of compressive stress on cavitation-erosion corrosion behavior of 304 stainless steel. The experimental results showed that increasing compressive stress can reduce the cavitation weight loss of 304 stainless steel. The reason behind this is that compressive stress promotes deformation-induced martensitic transformation, providing cushioning effect and improving the hardness of 304 stainless steel.
ANTI-CORROSION METHODS AND MATERIALS
(2022)
Article
Engineering, Mechanical
Cheng-Man Deng, Yu Zhu, Shengkai Sun, Junsheng Wei, Da-Hai Xia
Summary: This study investigated the blushing phenomenon on epoxy-phenolic coated tinplate after boiling sterilization, revealing poor corrosion resistance and coating adhesion as the main causes for underfilm corrosion and coating disbondment.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Chemistry, Physical
O. J. Ramos-Negron, R. F. Escobar-Jimenez, J. H. Arellano-Perezb, J. F. Gomez-Aguilar, Da-Hai Xia
Summary: This study focused on the corrosion analysis of aluminum alloy using ethanol-gasoline blends and proposed an alternative signal processing method, the Stockwell Transform (ST). The results showed varying corrosion levels in the aluminum alloy exposed to different concentrations of ethanol-gasoline blends.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Materials Science, Multidisciplinary
Da-Hai Xia, Cheng-Man Deng, Digby Macdonald, Sina Jamali, Douglas Mills, Jing-Li Luo, Michael G. Strebl, Mehdi Amiri, Weixian Jin, Shizhe Song, Wenbin Hu
Summary: This article reviews the application of electrochemical methods, virtual instrumentation, and advanced sensors/probes in the assessment of corrosion damage. It presents typical corrosion monitoring results obtained in different environmental conditions and discusses detection methods, data analysis, theoretical and mathematical models for each corrosion system. Challenges, issues, and possible solutions are suggested. Future developments, such as wireless, intelligent, and automatic electrochemical measurement, are summarized.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Kaiqiang Li, Xincheng Li, Yubin Zhao, Kangchen Wang, Shenyou Song, Wenliang Jin, Dahai Xia, Yunze Xu, Yi Huang
Summary: This study designed a partial pre-rusted wire beam electrode to investigate the influence of the rust layer on rebar corrosion. The results demonstrate that the rust layer plays a more crucial role in inhibiting chloride-induced corrosion and greatly accelerates the growth of pitting corrosion.
Article
Materials Science, Multidisciplinary
Yuanyuan Ji, Yingchang Mao, Lihua Dang, Da-Hai Xia, Wenbin Hu
Summary: The localized corrosion behavior of AA 5083-H111 in 3.5 wt-% NaCl solution was investigated using SEM, FIB, and TEM techniques. It was found that Ti-rich IMPs acted as cathodes, leading to the dissolution of neighboring Al matrix and the formation of a trench. Raised 'circles' observed on the alloy surface were identified as cathodic regions where corrosion products were deposited. In the sub-surface region beneath the raised 'circle' area, fine Al grains and corroded Al-Mg phases were observed.
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
(2023)
Editorial Material
Materials Science, Multidisciplinary
Yunze Xu, Da-Hai Xia, Jian Zhang, Gang Liu
Article
Materials Science, Multidisciplinary
Da-Hai Xia, Yuanyuan Ji, Ruifeng Zhang, Yingchang Mao, Yashar Behnamian, Wenbin Hu, Nick Birbilis
Summary: Localized corrosion of aluminium alloy AA5083-H111 was studied in both a simulated dynamic seawater/air interfacial zone and a full seawater immersion zone using electrochemical impedance spectroscopy and electrochemical noise. Investigation of Al-Fe/Ti intermetallic particles (IMPs) on localized corrosion was conducted with focused ion beam, transmission electron microscopy, and energy dispersive X-ray spectroscopy. Compared to the full immersion zone, the interfacial zone exhibited higher oxide film resistance and charge transfer resistance, attributed to the elevated oxygen flux in that zone. The localized corrosion was found to originate from IMPs containing an Al-Fe phase and a Ti enriched phase.
Article
Electrochemistry
Yuanyuan Ji, Qian Hu, Da-Hai Xia, Jing-Li Luo
Summary: The corrosion characteristics of passive films on 1060, 2024 and 5083 aluminum alloys formed in citric acid solution are studied. The passive film on 1060 pure Al has the best corrosion resistance, while the presence of alloying elements reduces the corrosion resistance of the passive films on 2024 and 5083 Al alloys. Cu/Mg doping α-Al2O3 surfaces exhibit different corrosion resistances compared to pure α-Al2O3 (110) surface due to changes in Cl adsorption behavior.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Yusu Tang, Dinglei Geng, Zhihao Cheng, Xin Han, Liying Han, Jinfeng Zhang, Dahai Xia, Jie Liu
Summary: A facile and surfactant-free electrochemical synthesis method was used to produce PtIr nanocubes as highly efficient Pt-based metal catalysts. The obtained PtIr nanocubes exhibited outstanding specific activity (SA) values, which were 1.5 and 3.8 times higher than Pt nanocubes and PtIr nanospheres, respectively. This study provides an effective strategy for the green synthesis of high-efficiency Pt-based metal catalysts with controllable shapes.
Article
Materials Science, Multidisciplinary
Cheng-Man Deng, Da-Hai Xia, Ruifeng Zhang, Yashar Behnamian, Wenbin Hu, Nick Birbilis
Summary: The effect of wetting time on localized corrosion of AA5083-H111 aluminum alloy in a dynamic seawater/air interface zone was investigated. Longer wetting time resulted in a more serious localized corrosion degree and thus led to an uneven and incomplete corrosion product film. This was attributed to the presence of a thin electrolyte layer upon the alloy, restricting the repassivation of the corrosion pits.