Article
Chemistry, Physical
Rasoul Parichehr, Changiz Dehghanian, Aida Nikbakht
Summary: The composite Plasma Electrolytic Oxidation together with silane (PEO/silane) coating on AZ31 magnesium alloy improved the adhesion strength of the epoxy coating and showed superior corrosion resistance compared to PEO and silane single-layer coatings. Importantly, the PEO/silane coating maintained excellent corrosion resistance even after 168 hours of immersion in NaCl solution.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Dan Zhang, Qi Han, Kun Yu, Xiaopeng Lu, Ying Liu, Ze Lu, Qiang Wang
Summary: The addition of proper amount of CuO into PEO coatings on pure magnesium greatly improved the antibacterial abilities of the coatings, while also promoting cell proliferation. Among the copper-bearing PEO coatings tested, PEO-5Cu showed the best combination of antibacterial ability, biocompatibility, and corrosion resistance, making it a recommended option for patients with jaw defects.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Dong Han, Jin Zhang, Yong Lian, Pengfei Ji, Weisheng Xu, Guichuan Tang
Summary: A composite coating was fabricated to improve the ignition resistance of ZM5 alloy. The PEO/aluminum phosphate composite coating showed the best ignition resistance and self-extinguishing property. Three characteristic stages were observed for ZM5 alloy and its coating at different temperatures.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Chang Liu, Xiaopeng Lu, Yan Li, Qianqian Chen, Tao Zhang, Fuhui Wang
Summary: In this study, post-treatment process was utilized to enhance the corrosion and wear resistance of PEO coatings, with sol-gel and epoxy layers effectively sealing open pores to improve coating performance. The hybrid coatings with epoxy layer showed superior corrosion and wear resistance, especially with longer dipping time during post-treatment generating denser coatings with superior properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
E. Wierzbicka, B. Vaghefinazari, S. V. Lamaka, M. L. Zheludkevich, M. Mohedano, L. Moreno, P. Visser, A. Rodriguez, J. Velasco, R. Arrabal, E. Matykina
Summary: Flash-PEO coatings, incorporating self-sealing effect and organic corrosion inhibitors, provide a green alternative to chromate conversion coatings with equally effective corrosion protection for industrial level applications.
Article
Materials Science, Coatings & Films
Hossein Alian Moghadam, Majid Jabbari, Saeed Daneshmand, Saeid Rasouli Jazi, Arezoo Khosravi
Summary: The consumption of graphite electrodes in arc furnaces is a major factor in steel production costs, and reducing consumption can help lower production costs. This study uses simulation and experimental methods to analyze the effects of using a TiO2/SiC/SiO2 coating on electrode consumption, finding that coating can optimize consumption. Furthermore, simulations show that coating electrodes with layers of varying thickness can effectively change the conical height of the electrode head.
SURFACE & COATINGS TECHNOLOGY
(2021)
Review
Chemistry, Physical
Ewa Wierzbicka, Bahram Vaghefinazari, Marta Mohedano, Peter Visser, Ralf Posner, Carsten Blawert, Mikhail Zheludkevich, Sviatlana Lamaka, Endzhe Matykina, Raul Arrabal
Summary: Hexavalent chromium-based protection systems are no longer used due to their proven toxicity and carcinogenic effect. The search for alternative protection technologies for Mg alloys has been ongoing for decades, and surface treatment systems with equivalent efficacies to that of Cr(VI)-based ones have only recently started to emerge.
Article
Materials Science, Multidisciplinary
Negar Mehri Ghahfarokhi, Behrooz Shayegh Broujeny, Amin Hakimizad, Ali Doostmohammadi
Summary: To improve the corrosion behavior of a magnesium alloy, a two-step coating process involving plasma electrolytic oxidation coating (PEO) and the immersion method was used. The PEO coating contained different phases, while the PDMS coating formed a non-porous layer. The corrosion tests showed that the PEO/PDMS hybrid coating effectively reduced the corrosion rates of the magnesium alloy.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Coatings & Films
Julia Nachtsheim, Songyun Ma, Jaka Burja, Barbara Setina Batic, Bernd Markert
Summary: This research studied the effect of PEO coating on the long-term corrosion behavior of medical-grade magnesium alloy. The results showed that the PEO coating can significantly control the corrosion of the magnesium alloy and provide valuable information.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Rabia Kara, Huseyin Zengin
Summary: This study investigated the microstructure, tribological and electrochemical corrosion properties of plasma electrolytic oxidation (PEO) coatings with various amounts of carbon nanotube (CNT) additives on AZ80 magnesium alloy substrate in silicate-based electrolyte. The results showed that increasing CNT additions led to thicker coating layers. The addition of 0.5 g/L CNT resulted in a slight decrease in roughness before increasing again. The wear resistance of the PEO-coated specimens improved with increasing CNT-incorporation. The best corrosion resistance was achieved with the addition of 0.5 g/L CNT.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Ewa Wierzbicka, Marta Mohedano, Endzhe Matykina, Raul Arrabal
Summary: This study developed FPEO coatings with excellent corrosion resistance to replace harmful conversion coatings. It was found that lower energy consumption in the FPEO process resulted in better corrosion resistance of the coatings.
Article
Materials Science, Coatings & Films
S. Wang, Y. C. Liu, H. M. Liu, Y. F. Lan
Summary: This paper discusses an in-situ estimated methodology of coating using an equivalent circuit for the plasma electrolytic oxidation (PEO) process. By analyzing the transient load waveform and the arc image recorded during pulsed bipolar PEO treatment, an equivalent circuit of the second-order nonlinear structure is proposed. The linear part of the model is derived from Kirchhoff's law and Laplace's transformation rule, while the nonlinear part is fitted using Fitting Theory. The paper also derives the calculation method for each element value in the equivalent circuit. The characterization results of the coating properties show that the changes in different element values in the equivalent circuit reflect the changes in coating thickness, coating density, and discharge intensity. The relationship between the values of several elements and the microstructure of the coating is comprehensively analyzed, and a method for predicting the corrosion resistance of the coating is provided.
SURFACE ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Bahram Vaghefinazari, Cheng Wang, Dimitri Mercier, Di Mei, Antoine Seyeux, Philippe Marcus, Carsten Blawert, Sviatlana Lamaka, Mikhail L. Zheludkevich
Summary: The study reveals that while 2,5PDC has a remarkable corrosion inhibition effect on bare AZ21 Mg alloy, it can extensively deteriorate a PEO coating on the same Mg substrate, resulting in an overall accelerated failure of the PEO-coated AZ21 alloy. This deteriorative behavior is explained based on the characterization of the bare and PEO-coated AZ21 exposed to the NaCl electrolyte with and without inhibitor using EIS, SEM, STEM and ToF-SIMS.
Article
Materials Science, Multidisciplinary
Saeed Daneshmand, Mohammad Heydari Vini
Summary: Nowadays, the consumption of graphite electrodes accounts for the majority of steel production costs in electric arc furnaces (EAF). This study evaluates the effectiveness of a SiC/TiO2 protective coating in reducing electrode corrosion through numerical simulation, experimental methods, and industrial testing in EAF. The results from thermogravimetric analysis, experiments, and industrial investigations highlight the significant role of this coating in decreasing electrode corrosion.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Review
Chemistry, Multidisciplinary
Soumya Sikdar, Pramod Menezes, Raven Maccione, Timo Jacob, Pradeep L. Menezes
Summary: Plasma electrolytic oxidation (PEO) is a novel surface treatment process used to produce thick, dense metal oxide coatings on light metals to improve their wear and corrosion resistance. The PEO process is widely employed in mechanical, petrochemical, and biomedical industries due to its superior characteristics. Recently, PEO process has also been utilized to produce nanocomposite coatings, showing promising developments in this field.
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
Engineering, Environmental
Linqian Wang, Darya Snihirova, Min Deng, Bahram Vaghefinazari, Daniel Hoeche, Sviatlana V. Lamaka, Mikhail L. Zheludkevich
Summary: The study found that 2,6-DHB can simultaneously enhance the discharge activity of Mg-0.15Ca anodes and inhibit self-discharge, resulting in negative average potential and high anodic utilization efficiency.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
K. A. Yasakau, A. Maltseva, S. V. Lamaka, Di Mei, H. Orvi, P. Volovitch, M. G. S. Ferreira, M. L. Zheludkevich
Summary: The corrosion protection and surface properties of magnesium containing different levels of iron were evaluated in NaCl solutions with or without various carboxylates. It was found that the presence of 2,5-pyridinedicarboxylate was effective in inhibiting corrosion of magnesium, while salicylate was efficient in inhibiting corrosion of magnesium with higher iron content.
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
Chemistry, Physical
Bahram Vaghefinazari, Darya Snihirova, Cheng Wang, Linqian Wang, Min Deng, Daniel Hoeche, Sviatlana V. Lamaka, Mikhail L. Zheludkevich
Summary: In this study, the sodium salt of EDTA was used as an additive in a primary Mg-air battery electrolyte to investigate its impact on the discharge performance of the Mg anode. The results indicate that the optimal pH for the electrolyte is around 9, where the EDTA effectively prevents the formation of Mg(OH)(2) fouling and enhances the anode activity. The utilization efficiency of the discharged Mg anode improves with increasing pH due to mechanisms such as suppressing the chunk effect, weakening the Negative Difference Effect (NDE), and promoting the formation of a more protective layer on the anode surface.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Coatings & Films
Jiaping Han, Yucheng Yu, Junjie Yang, Xiaopeng Lu, Carsten Blawert, Mikhail L. Zheludkevich
Summary: In this study, La2O3 nano-particles were added into the PEO electrolyte to enhance the corrosion and wear resistance of pure magnesium. The incorporation of particles led to a decrease in porosity and thickness of the coating, resulting in improved corrosion and wear performance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Energy & Fuels
Mohamed El Amine Ben Seghier, Daniel Hoche, Mikhail Zheludkevich
Summary: This paper proposes a practical implementation of robust ensemble learning models for accurate prediction of the internal corrosion rate in oil and gas pipelines. The extreme gradient boosting model shows the highest performance in predicting the internal corrosion rate.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2022)
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)
Review
Chemistry, Physical
Ewa Wierzbicka, Bahram Vaghefinazari, Marta Mohedano, Peter Visser, Ralf Posner, Carsten Blawert, Mikhail Zheludkevich, Sviatlana Lamaka, Endzhe Matykina, Raul Arrabal
Summary: Hexavalent chromium-based protection systems are no longer used due to their proven toxicity and carcinogenic effect. The search for alternative protection technologies for Mg alloys has been ongoing for decades, and surface treatment systems with equivalent efficacies to that of Cr(VI)-based ones have only recently started to emerge.
Review
Chemistry, Physical
Bahram Vaghefinazari, Ewa Wierzbicka, Peter Visser, Ralf Posner, Raul Arrabal, Endzhe Matykina, Marta Mohedano, Carsten Blawert, Mikhail Zheludkevich, Sviatlana Lamaka
Summary: This review article focuses on the development of safer and more environmentally friendly corrosion protection techniques for magnesium alloys. It discusses the impact of pre-treatment methods on the corrosion properties of magnesium, as well as the fundamentals and performance of various conversion coating formulations. The article also highlights the potential of these conversion coatings to replace hazardous chromium(VI)-based technologies in industries.
Article
Materials Science, Multidisciplinary
Bahman Daneshian, Daniel Hoeche, Ole oystein Knudsen, Anders Werner Bredvei Skilbred
Summary: A good understanding of influencing parameters is necessary for predicting corrosion in marine and coastal environments. This study analyzed real-time data including air temperature, sensor surface temperature, relative humidity, precipitation, and wind to investigate their influences on steel corrosion. The results showed that the correlation between corrosion and the time when the sensor surface temperature is below the dewpoint temperature was the strongest. Corrosion was also correlated with wind speed above 5 m s(-1). Most corrosion occurred in autumn and winter due to increased water condensation and stronger winds, while little corrosion was observed in spring and summer due to less condensation and dry surfaces.
NPJ MATERIALS DEGRADATION
(2023)
Article
Engineering, Biomedical
Dirk Steglich, Jacques Besson, Inken Reinke, Heike Helmholz, Monika Luczak, Vasil M. Garamus, Bjoern Wiese, Daniel Hoeche, Christian J. Cyron, Regine Willumeit-Roemer
Summary: We proposed a computational framework to study the effect of corrosion on the mechanical strength of magnesium (Mg) samples. By using a mass-diffusion type model accounting for localized corrosion with Weibull statistics, we could predict the residual strength of biomedical Mg implants after a given period of degradation in a physiological environment. The framework successfully modeled the mechanical behavior of the Mg samples and predicted the loss of mechanical strength and ductility due to corrosion.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Metallurgy & Metallurgical Engineering
Aravinth Ravikumar, Daniel Hoeche, Christian Feiler, Maria Lekka, Asier Salicio-Paz, Michael Rohwerder, Manoj Prabhakar Jothi Manickam, Mikhail Zheludkevich
Summary: UHSS structures with Zn-Ni coatings require outgassing steps to remove hydrogen in order to prevent hydrogen embrittlement. This study developed a finite element model to analyze the influence of coating morphology and steel microstructural features on the hydrogen concentration profile during outgassing.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Bjoern Wiese, Sven Berger, Jan Bohlen, Maria Nienaber, Daniel Hoeche
Summary: This work demonstrates the use of machine learning-based models to predict the relationship between material properties and process parameters in Mg-Gd alloys. The shallow artificial neural networks accurately predict the alloy's properties and outperform the linear regression approach. This machine learning approach has potential applications in alloy system development and online quality monitoring.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Mohamed El Amine Ben Seghier, Ole Oystein Knudsen, Anders Werner Bredvei Skilbred, Daniel Hoeche
Summary: A data-driven model based intelligent framework is developed to forecast free atmospheric corrosion in marine steel structures. The framework utilizes a group method of data handling (GMDH) type neural network and Shapley additive explanations (SHAP) technique to examine the impact of environmental factors. The results demonstrate the high accuracy and efficiency of the framework in predicting corrosion progression.
NPJ MATERIALS DEGRADATION
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
