Article
Materials Science, Multidisciplinary
Yi-Xing Zhu, Guang-Ling Song, Da-Jiang Zheng, Maria Serdechnova, Carsten Blawert, Mikhail L. Zheludkevich
Summary: This study introduces a sacrificial co-sputtered ZnAl transition layer for the in situ growth of scalable-manufactured and thickness-controllable LDH films on arbitrary substrate materials. It not only develops a new strategy to design and grow LDH films with multifaceted features, but also reveals sophisticated LDH formation mechanisms.
SCIENCE CHINA-MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
Yi-Xing Zhu, Guang-Ling Song, Peng-Peng Wu
Summary: A novel Mg-Al LDH film was prepared on an Al-alloyed AZ31 substrate using hydrothermal method. The film's structural, chemical, and functional characteristics were investigated through various tests. The results showed that the Mg-Al LDH film effectively protected the AZ31 from corrosion even after 90 days of immersion in a corrosive solution. Moreover, the scratched film exhibited a self-repairing behavior, releasing metal ions and regenerating dense LDH nano-sheets to inhibit further corrosion.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Biotechnology & Applied Microbiology
Longhai Qiu, Chi Zhang, Xiaoming Yang, Feng Peng, Yuliang Huang, Yue He
Summary: The SiO2 layer on PEO-treated Mg enhances corrosion resistance, shows good cytocompatibility and osteogenic induction ability, and promotes angiogenesis behavior.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Construction & Building Technology
Tam Minh Phan, Son Ngoc Nguyen, Chang-Bae Seo, Dae-Wook Park
Summary: The study showed that using paraffin wax and warm-mix additive treatment for fibers can enhance their distribution in asphalt mixtures. The wet mixing method is more effective in mitigating adverse mixing effects. There was no significant difference in performance between wax-coated fiber and uncoated fiber mixtures.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Ceramics
Muneeb Irshad, Kiran Baber, Muhammad Salim Butt, Muhammad Bilal Hanif, Muhammad Asad, Abdul Ghaffar, Muhammad Rafique, Iftikhar Hussain, Murefah mana Al-Anazy, Hryhorii Makarov, Bogna Daria Napruszewska, Michal Mosialek, Martin Motola
Summary: In this study, BaCe0.97M0.03O3-6 (M = Sm, Gd) perovskite electrolyte materials were synthesized using a semi-organic combustion route with the help of biomolecules and lemon juice as a bio-chelating agent. The synthesized electrolyte materials showed dense microstructure and stable chemical composition, and exhibited a high power density, making them potential efficient electrolytes for IT-SOFCs. The results suggest that the semi-organic route can be a viable and environmentally friendly method for synthesizing perovskite structure materials.
CERAMICS INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Qiang Shen, Dongyu Jiang, Shiyu Cao, Xinqi Lu, Chong Mao, Xiaobing Dai, Fei Chen
Summary: High Li+ conductivity, good interfacial compatibility, and nano-scale particle size are important factors in selecting inorganic fillers for high-performance composite solid electrolytes. In this study, non-milled in situ LLZO fillers were synthesized with nanosize via the sol-gel method, resulting in more surface defects and fewer impurities in LLZO. These fillers effectively reduce the crystallinity of PEO and agglomeration in PEO, leading to composite electrolytes with high Li+ conductivity. Notably, the non-milled LLZO-PEO-based LiFePO4/Li battery exhibits a discharge capacity of about 135.5 mA h g(-1) at 1C and 60°C, with a 99% discharge specific capacity remaining after 100 cycles. Furthermore, nano-sized non-milled LLZO improves the discharge capacity of LiFePO4/Li batteries to 122.1 mA h g(-1) at 0.2C and 30°C.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Roger M. Pallares, Marimikel Charrier, Sara Tejedor-Sanz, Dong Li, Paul D. Ashby, Caroline M. Ajo-Franklin, Corie Y. Ralston, Rebecca J. Abergel
Summary: Rare-earth elements are essential for clean energy technologies, but their supply chain is at high risk of disruption. This study presents a synthetic biogenic material that mimics natural processes to extract lanthanides. The material demonstrates high affinity and selectivity for lanthanides, and the functionalized protein layers can be reused. These findings highlight the potential of biogenic materials in recovering critical elements from waste.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Cancan Chang, Xin Guo, Yafeng Liu, Zhiliang Jin
Summary: Co2P semiconductors obtained through in situ phosphorylation of CoV-LDH act as the main active center in photocatalysts, enhancing the rate of hydrogen evolution. The enrichment of active sites and the trapping of active protons by negatively-charged P atoms in Co2P semiconductors contribute to the improved kinetics of hydrogen evolution. A highly efficient and stable surface-phosphorized CoV-LDH/Co2P cocatalyst is synthesized with different phosphorylation ratios to control carrier migration. The optimized P-CoV-LDH photocatalyst exhibits a hydrogen evolution activity of 434.5 mu mol, which is significantly higher than that of the single catalysts CoV-LDH, P-V-LDH, and P-Co-LDH. This work opens up possibilities for the precise design of noble-metal-free cocatalysts through selective phosphorylation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Ko Yamaguchi, Daisuke Kawaguchi, Noboru Miyata, Tsukasa Miyazaki, Hiroyuki Aoki, Satoru Yamamoto, Keiji Tanaka
Summary: A better understanding of the chemical reaction between epoxy and amine compounds at a solid interface is crucial for designing and fabricating materials with appropriate adhesive strength. In this study, the curing reaction kinetics of epoxy phenol novolac and 4,4'-diaminodiphenyl sulfone at the outermost interface were examined using various techniques. The results showed that the reaction rate constant was higher at the interface, and the frequency factor at the interface was also greater, which could be explained by the densification and orientation of reactants at the interface.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Yu Chen, Meng Wang, Kai Zheng, Yaguang Ren, Hao Xu, Zhongzheng Yu, Feifan Zhou, Chengbo Liu, Junle Qu, Jun Song
Summary: This study presents an effective strategy to synthesize antimony nanopolyhedrons and successfully observes the modulation effect of different morphologies on their localized surface plasmon resonance in experimentation. Antimony nanopolyhedrons exhibit excellent performance in PTCE and good photothermal stability, as well as biocompatibility. The research also demonstrates the construction of multifunctional nanomedicines based on antimony nanopolyhedrons for efficient photoacoustic-imaging-guided synergistic photothermal/immune-therapy of tumors in vivo.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Junming Zhang, Yingjian Fang, Yao Chen, Xiaojie Zhang, He Xiao, Man Zhao, Chaoyue Zhao, Xiongfeng Ma, Tianjun Hu, Ergui Luo, Jianfeng Jia, Haishun Wu
Summary: This study successfully constructed a bifunctional electrocatalyst with high electrocatalytic activity and long-term stability for seawater electrolysis. The catalyst exhibited outstanding electrocatalytic performance and corrosion resistance, and could stably produce hydrogen in alkaline freshwater/seawater electrolyte for over 48 hours.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Applied
Manas Shukla, Bishwadeep Baksi, Suraj Prakash Mohanty, Biswanath Mahanty, Aliveli Mansi, Eldon R. Rene, Shishir Kumar Behera
Summary: This study conducted lab-scale soil washing experiments using two chelating agents, EDTA and NAC, and optimized the process using response surface methodology. The results showed that NAC is more effective than EDTA in removing Cr+6 contamination from soil.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Materials Science, Biomaterials
Se-Ho Jeong, Khanh Toan Nguyen, Manh Tuong Nguyen, Jae-Seek You, Byung-Hoon Kim, Han-Cheol Choe, Sang-Gun Ahn
Summary: This study aimed to investigate the effect of plasma electrolytic oxidation (PEO) treatment on the cell activity on titanium alloy surfaces. The results showed that PEO-treated titanium alloy surfaces enhanced the cell attachment and differentiation of MC3T3-E1 cells, without affecting cell proliferation and death. The study found that PEO treatment induced osteoblast differentiation through regulating the expression of DMP1 and IFITM5. Therefore, PEO treatment is an effective method to improve the biocompatibility of titanium alloys.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Engineering, Biomedical
Juning Xie, Shi Cheng, Guoqing Zhong, Ruixiang Zhou, Chi Zhang, Yue He, Feng Peng, Yu Zhang
Summary: Plasma electrolytic oxidation (PEO) is widely used to enhance the corrosion resistance of Mg alloy, but the formation of pores and cracks on the PEO surface is a common issue. In this study, Mn and Fe oxyhydroxide duplex layers were successfully constructed on PEO-treated AZ31 using a simple immersion process, effectively sealing the pores and improving the corrosion resistance. The PEO-Fe/Mn-coated Mg alloy exhibited the best bone regeneration and osteointegration abilities in cell culture and animal implantation experiments.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yu-Qi Wang, Xiao-Han Dan, Xiang Wang, Zhen-Yu Yi, JiaJu Fu, Ya-Chen Feng, Jin-Song Hu, Dong Wang, Li-Jun Wan
Summary: We report an in situ electrochemical scanning tunneling microscopy (ECSTM) study on the synergistic effect of Mg2+ in the CO2 reduction reaction (CO2RR) catalyzed by cobalt phthalocyanine (CoPc). Our study reveals that Mg2+ enhances the adsorption of CO2 on CoPc, resulting in the formation of CoPc-CO2-Mg2+ complexes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Metallurgy & Metallurgical Engineering
Junjie Yang, Pingli Jiang, Youmin Qiu, Chih-Yu Jao, Carsten Blawert, Sviatlana Lamaka, Anissa Bouali, Xiaopeng Lu, Mikhail L. Zheludkevich, Wei Li
Summary: Sodium salts of mono- and di- carboxylic acids were investigated as corrosion inhibitors for AM50 alloy in pH neutral aqueous NaCl environment. The inhibitors were found to reduce the anodic dissolution of the alloy, and their efficiency increased with time and concentration. The difference in inhibition action among these inhibitors was explained on the molecular scale.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Metallurgy & Metallurgical Engineering
Yan Li, Xiaopeng Lu, Maria Serdechnova, Carsten Blawert, Mikhail L. Zheludkevich, Kun Qian, Tao Zhang, Fuhui Wang
Summary: This study achieved in-situ incorporation of layered double hydroxides (LDH) nanocontainers into plasma electrolytic oxidation (PEO) coatings on AZ91 Mg alloy. Fumarate was selected as the Mg corrosion inhibitor for exchange and intercalation into the nanocontainers, which were then incorporated into the coating. It was found that the presence of LDH nanocontainers increased the thickness and compactness of the coatings. The corrosion resistance of the coatings was greatly enhanced and stabilized by the loaded inhibitor and nanocontainers through ion-exchange when corrosion occurred.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Physical
Ting Wu, Carsten Blawert, Maria Serdechnova, Polina Karlova, Gleb Dovzhenko, D. C. Florian Wieland, Stevan Stojadinovic, Rastko Vasilic, Kristina Mojsilovic, Mikhail L. Zheludkevich
Summary: The development of PEO surface treatments for Nb enables the production of functional coatings with a combination of new compositions and phases. The coatings mainly consist of Nb2O5, with additional oxides or phosphates present in certain electrolytes. Coatings produced in silicate-containing electrolyte exhibit the highest photocatalytic activity and improved corrosion resistance.
APPLIED SURFACE SCIENCE
(2022)
Article
Metallurgy & Metallurgical Engineering
Gen Zhang, Liang Wu, Maria Serdechnova, Aitao Tang, Cheng Wang, Carsten Blawert, Fusheng Pan, Mikhail L. Zheludkevich
Summary: In this study, plasma electrolytic oxidation (PEO) coatings on magnesium alloy were produced and followed by hydrothermal treatments to synthesize layered double hydroxides (LDHs) based nanocontainers. The synthesis of LDHs was performed in different growth solutions. The results showed that it was difficult to form LDHs on silicate-based PEO coating, while hydrothermal treatments in Al3+ containing solution played an important role in corrosion resistance for phosphate and silicate-based PEO coatings.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Materials Science, Coatings & Films
Alexander G. Rakoch, Tran Van Tuan, Zukhra Khabibullina, Carsten Blawert, Maria Serdechnova, Nico Scharnagl, Mikhail L. Zheludkevich, AleKSandra A. Gladkova
Summary: The mechanisms of PEO coatings formation on AA2024 aluminum alloy in an aqueous solution were studied, and the addition of CoOOH·H2O was found to result in the formation of black coatings. The structure, phase, and elemental compositions of the coatings were found to be correlated with their corrosion properties. The electrochemical measurements showed that the anodic and cathodic current densities as well as the impedance modulus improved with the increase of coatings thickness in the base electrolyte. However, the behavior of the coatings synthesized in the electrolyte with CoOOH·H2O differed, with the thickest coating exhibiting the best long-term stability after extended exposure.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
M. Starykevich, A. I. B. Rondao, J. P. F. Grilo, F. M. B. Marques
Summary: MgO partially stabilized zirconia (xMgPSZ) was prepared using a ceramic route starting from pure metal oxides. The focus was on 7.5MgPSZ, which was sintered at 1700 degrees C and cooled at different rates, with or without intermediate dwells at various temperatures and durations. Customized thermal expansion data analysis and powder X-ray diffraction were used to determine the phase content. Novel radar-type charts were created to group the structural and microstructural information. Original benchmarking exercises with literature data provided insights on the thermal performance and property tuning rationale of these materials.
CERAMICS INTERNATIONAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Cheng Wang, Wen Xu, Daniel Hoeche, Mikhail L. Zheludkevich, Sviatlana V. Lamaka
Summary: This study elaborates on the contribution of ORR to the corrosion process of pure Mg at different impurity levels in NaCl electrolyte, using local techniques for experimental validation and computational simulations. The simultaneous monitoring of H2 and O2 local concentrations reveals the relationship between ORR and hydrogen evolution reaction.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Nanoscience & Nanotechnology
Tatsiana Shulha, Maria Serdechnova, Sviatlana V. Lamaka, Xiaopeng Lu, Christian Feiler, Carsten Blawert, Mikhail L. Zheludkevich
Summary: This study describes the intercalation of corrosion inhibitors into layered double hydroxides on the surface of magnesium alloy. The corrosion protective properties of the obtained layers were studied and compared using various tests. The results showed that vanadate intercalated into LDH was more effective in protecting the magnesium alloy compared to oxalate.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Engineering, Environmental
Zhihao Chen, Nico Scharnagl, Mikhail L. Zheludkevich, Hanjie Ying, Wenzhong Yang
Summary: Metal corrosion causes significant damage to the economy, environment, and industry. Smart self-healing coatings have attracted attention for active corrosion protection. These coatings achieve self-healing through either intrinsic or extrinsic methods. Intrinsic self-healing coatings utilize reversible physical and chemical interactions between molecules, providing permanent self-healing effects. Extrinsic methods involve embedding micro/nanocontainers in the coatings, which can sense changes in the micro-environment and repair the coating's surface. This review summarizes the research progress of micro/nanocontainer-based stimuli-responsive self-healing coatings, exploring their different functions and applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Qianqian Chen, Xiaopeng Lu, Maria Serdechnova, Cheng Wang, Sviatlana Lamaka, Carsten Blawert, Mikhail L. Zheludkevich, Fuhui Wang
Summary: Incorporating zeolite microparticles containing Ce3+ ions into PEO coating enhances the corrosion resistance of AM50 Mg alloy and stabilizes and enhances the barrier properties of the oxide layer during corrosion.
Article
Biochemistry & Molecular Biology
Maciej Przybylek, Piotr Beldowski, Florian Wieland, Piotr Cysewski, Alina Sionkowska
Summary: Chitosan-collagen blends are commonly used in tissue engineering and biomedical fields like joints diseases treatment. Understanding the affinity between chitosan and collagen type II is crucial for designing suitable biomaterials for cartilage and synovial fluid regeneration. This study investigated the effects of deacetylation degree in chitosan and hydroxylation degree of proline moieties in collagen. The results showed that these modifications significantly influenced the structural features of the interaction between the two materials, such as hydrogen bonds, hydrophobic, and ionic contacts.
Article
Metallurgy & Metallurgical Engineering
Min Deng, Linqian Wang, Darya Snihirova, Jan Bohlen, Gerrit Kurz, Sviatlana V. Lamaka, Daniel Hoeche, Mikhail L. Zheludkevich
Summary: Thermomechanical processing can enhance the corrosion performance of lean Mg-Ca alloys, but annealing can accelerate the corrosion rate due to Fe precipitation. Micro-alloying with indium can effectively restrain the formation of Fe-containing precipitates. This finding provides a foundation for developing Mg-Ca-based alloys with high corrosion resistance, superior electrochemical performance, and excellent mechanical properties.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Engineering, Biomedical
Lara Moreno, Cheng Wang, Sviatlana V. Lamaka, Mikhail L. Zheludkevich, Juan Rodriguez-Hernandez, Raul Arrabal, Endzhe Matykina
Summary: In this study, a hybrid hierarchical coating system consisting of plasma electrolytic oxidation (PEO) coating and a homogeneously porous structured polycaprolactone (PCL) top-coat layer loaded with ciprofloxacin (CIP) was developed on Mg3Zn0.4Ca alloy. The HHC system achieved controlled drug release, multi-level protection, and corrosion inhibition by sealing the PEO coating pores, inhibiting corrosive species, and forming insoluble CIP-Me (Mg/Ca) chelates. CIP actively participated in the protection mechanism by interacting with cations coming through the damaged coating.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Electrochemistry
Clara Boehme, Maksim Starykevich, Gabriel Constantinescu, Andrei V. Kovalevsky, Daniela V. Lopes
Summary: Iron ore can be used as a potential feedstock for the electrowinning of iron, but the presence of different iron oxide types poses difficulties and further studies are required to establish electrowinning as an alternative technology for iron production. Previous studies have shown adverse effects on the Faradaic efficiency when using magnetite as feedstock. This study demonstrates, for the first time, the possibility of obtaining relatively high Faradaic efficiencies (66%) with hematite-magnetite mixtures at low temperature (80 degrees C).
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Tim Wuerger, Linqian Wang, Darya Snihirova, Min Deng, Sviatlana Lamaka, David A. Winkler, Daniel Hoche, Mikhail L. Zheludkevich, Robert H. Meissner, Christian Feiler
Summary: This study evaluates the robustness and predictive performance of two QSPR models and proposes a multi-objective optimization method to accelerate the discovery of advanced battery systems.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
