Article
Engineering, Chemical
R. N. Dalila, M. K. Md Arshad, Subash C. B. Gopinath, Conlathan Ibau, M. M. N. Nuzaihan, M. F. M. Fathil, U. Z. Mohd Azmi, Periasamy Anbu
Summary: A label-free Faradaic electrochemical impedimetric was developed for highly sensitive detection of C-reactive protein (CRP) using a gold interdigitated microelectrode biosensing platform enhanced by a gold nanoparticle-decorated molybdenum disulfide (Au-NPs/MoS2) nanosheet. The developed immunoassay showed a linear detection range of CRP and demonstrated excellent performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Physical
Yujuan Jing, Pingquan Wang, Qiangbin Yang, Qiurun Wang, Yang Bai
Summary: By introducing fillers, especially at a proper content, the epoxy coatings can greatly improve their mechanical properties and corrosion resistance. The developed filler, applied through a hydrothermal method, successfully enhanced the coating's ability to resist corrosion, providing a reliable solution for preventing corrosion in oil well metal casings.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Energy & Fuels
Hadi Heydari, Majid Abdouss, Saeedeh Mazinani, Ali Mohammad Bazargan, Fataneh Fatemi
Summary: The behavior of the PANI/MoS2-MnO2 composite on a Glassy Carbon electrode for supercapacitor applications was studied in this work. The ternary composite serves as an electrode in both three and two electrode systems with superior electrochemical properties compared to binary complexes. The supercapacitor electrode consists of MoS2 nanosheets, MnO2, and polyaniline, providing high specific capacitance, energy, power, and cycling stability.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Nanoscience & Nanotechnology
Martina Lihter, Michael Graf, Damir Ivekovic, Miao Zhang, Tzu-Hsien Shen, Yanfei Zhao, Michal Macha, Vasiliki Tileli, Aleksandra Radenovic
Summary: In this study, the authors successfully modified the surface of MoS2 through electrografting, demonstrating the advantages of treating predefined MoS2 nanoribbons at the nanoscale. The ability to individually address 2D layers using different electrodes opens up the possibility for specific surface modification of neighboring 2D nanostructures. This method could potentially be extended to other aryl-diazonium compounds and other 2D semiconducting materials.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Lei Cheng, Rong Jin, Dechen Jiang, Jian Zhuang, Xiaobo Liao, Qiangqiang Zheng
Summary: High-spatial-resolution local electrochemical impedance spectroscopy (LEIS) was achieved using scanning electrochemical cell microscopy (SECCM-LEIS), with a spatial resolution of approximately 180 nm. The stability and reliability of this platform were confirmed through long-term tests and Kramers-Kronig transformation. This technology revealed larger electric double-layer capacitance and smaller interfacial resistance at the edges of N-doped reduced graphene oxide compared to the planar surface, suggesting high electrochemical activity at the edges.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Applied
Chunping Qi, Kim Dam-Johansen, Claus Erik Weinell, Huichao Bi, Hao Wu
Summary: The study showed that the partial replacement of spherical zinc particles with stainless steel flakes (SSF) improved the corrosion protection performance of zinc-rich epoxy (ZRE) coating. This enhancement was attributed to the synergistic effects of increasing coating impedance and extending cathodic protection duration.
PROGRESS IN ORGANIC COATINGS
(2022)
Review
Crystallography
Omnia Samy, Shuwen Zeng, Muhammad Danang Birowosuto, Amine El Moutaouakil
Summary: Molybdenum disulfide (MoS2) is a compound with outstanding features and wide applications, playing important roles in electronics and energy, as well as significant effects in detecting diseases like cancer and Alzheimer's.
Article
Chemistry, Multidisciplinary
Xiaoyue Chen, Shucao Lu, Yanjiao Wei, Mengjie Sun, Xu Wang, Min Ma, Jian Tian
Summary: Under the dual pressure of energy crisis and environmental pollution, the electrocatalytic synthesis of NH3 directly from N2 and water using renewable electricity has become an important topic. In this study, basal plane-activated boron-doped MoS2 nanosheets (B-MoS2) were synthesized as a non-noble metal catalyst with excellent performance for N-2 electroreduction. The B-MoS2-300 nanosheets showed good selectivity, chemical stability, and high ammonia yield rate and Faradaic efficiency.
Review
Chemistry, Multidisciplinary
Yi Ming Ding, Nian Wu Li, Shuai Yuan, Le Yu
Summary: Water splitting driven by renewable energy sources is an environmentally friendly method to produce hydrogen as a future energy source. Layered molybdenum disulfide (MoS2) is a promising electrocatalyst for hydrogen evolution reaction (HER) and its catalytic activity can be enhanced through surface and interface engineering. This report summarizes the latest strategies and research progress in improving the catalytic activity of MoS2-based catalysts and discusses some unresolved issues in their large-scale application.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Materials Science, Coatings & Films
A. A. Burkov, S. Nikolenko, P. G. Chigrin, M. A. Kulik, V. O. Krutikova, A. A. Karpenko
Summary: Hydrothermal deposition of MoS2 on TiAl coatings reduces friction coefficient to 0.29 and wear rate by 5.4 times, while Cu-plating and etching on TiAl coatings can reduce them to 0.17, with a 61 times longer lubricant working lifetime.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Aurelia Elena Tudose, Florentina Golgovici, Alexandru Anghel, Manuela Fulger, Ioana Demetrescu
Summary: The aim of this paper is to assess the corrosion behavior of a CrNx-coated 310 H stainless steel under simulated supercritical water conditions. The study found that the CrNx coating forms a protective oxide film during autoclaving, providing better corrosion resistance.
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, Ceramics
Rong Hu, Yanmo Liao, Hui Qiao, Jun Li, Kai Wang, Zongyu Huang, Xiang Qi
Summary: In this study, the exfoliation of MoS2 nanosheets and the loading of MnO2 nanoparticles on the MoS2 nanosheets were achieved in one step through electrochemical method. The experimental results demonstrate that the MoS2 NS/MnO2 heterojunction exhibits superior electrochemical performance, even in neutral solution.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Yuling Zhuo, Ian A. Kinloch, Mark A. Bissett
Summary: In this study, a simple and scalable method for simultaneous electrochemical exfoliation and chemical functionalization of two-dimensional materials was proposed. The aryl diazonium salts used for functionalization were successfully grafted onto MoS2 and aided in the exfoliation process. This method allows for control over flake morphology and increases repeatability.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Kong Weicheng, Yu Zhou, Hu Jun
Summary: A Cr-DLC coating was successfully deposited on the surface of nitrided Ti6Al4V alloy using magnetron sputtering, with CrN acting as an important connection layer between the coating and the alloy. The electrochemical corrosion test results showed that the Cr-DLC coating exhibited the best corrosion resistance, effectively protecting the nitrided Ti6Al4V alloy from corrosion.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Physical
JaeHyoung Yun, Teayeop Kim, Hyeonaug Hong, Yong Jae Kim, Seon Il Kim, Yunjeong Park, Kyunghoon Kim, WonHyoung Ryu
Summary: In this study, carbon nanotubes (CNTs) coated with mussel-adhesive protein (MAP) were mixed with thylakoid membranes (TMs) to dramatically increase the contact area and improve the transfer efficiency of photosynthetic electrons. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) confirmed the formation of an electrical percolation network within the thick composites of MAP-CNT/TMs, leading to 10 times higher photocurrents compared to TMs with a mediator. The thick MAP-CNT/TMs composite layer produced a photocurrent of 4.25 µA cm(-2) without the aid of a mediator.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Min-Sung Hong, Yunjeong Park, Seok-Ryul Choi, Sang-Jin Ko, Kyunghoon Kim, Jung Gu Kim
Summary: The Fe3O4@MoS2 core-shell coating is a promising method for corrosion mitigation, with easy synthesis and excellent performance in both indoor and outdoor environments.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Biotechnology & Applied Microbiology
Thi Sinh Vo, Muhammad Mohsin Hossain, Jinwoo Lee, Jonghwan Suhr, Kyunghoon Kim
Summary: This study successfully explored the incorporation of chitosan and green filler materials (bamboo powders and coffee grounds) for low-cost adsorbents. The resulting composite foams exhibited excellent compressive properties and were effective in removing organic dyes from water, with superior recyclability compared to other adsorbents. These composite foams have the potential for applications in wastewater treatment due to their high performance, reusability, eco-friendly properties, and simple and low-cost fabrication processes.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Chemistry, Physical
Yoonkyung Lee, Eunpa Kim, Hyeongkeun Kim, Kyunghoon Kim
Summary: In this study, a rapid synthesis method for MoS2-Ag nanocomposites via laser-assisted photoreduction was proposed. The optical properties of MoS2-Ag nanocomposites could be easily controlled, and the nanocomposites exhibited significant surface-enhanced Raman scattering effect. Therefore, the laser-assisted photoreduction method has great potential for rapid synthesis and optical tuning of semiconductor-metal nanocomposites.
JOURNAL OF MATERIOMICS
(2023)
Article
Materials Science, Multidisciplinary
Minsung Hong, Ho Lun Chan, Yujun Xie, Elena Romanovskaia, John R. Scully, Peter Hosemann
Summary: The study investigated the effect of Te concentration in molten FLiNaK salt on the corrosion and mechanical properties of 304 stainless steel. The corrosion depth of samples decreased with increasing Te concentration after 48 h immersion at 600 degrees Celsius. Additionally, the 1.0 wt% Te sample showed less reduction in mechanical properties compared to the 0.1 wt% Te sample. It is hypothesized that a protective Cr-oxide layer is formed beneath the Ni-Fe rich layer formed by selective leaching of Cr.
Article
Chemistry, Multidisciplinary
Yun-Ho Lee, Seok-Ryul Choi, Sang-Jin Ko, Jung-Gu Kim
Summary: The effect of benzotriazole on the corrosion prevention of ENIG-treated copper in sodium chloride solution was investigated through various tests and analyses. Benzotriazole showed high corrosion inhibiting efficiency for both copper and nickel components. Furthermore, it suppressed more than half of galvanic corrosion between nickel and gold, which was the cause of corrosion in ENIG-treated copper. By chemisorption of nitrogen atoms, benzotriazole effectively inhibited corrosion of ENIG-treated copper. Corrosion and corrosion inhibition mechanisms were studied through microscopy and spectroscopy.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Physical
Teayeop Kim, Yoonkyung Lee, Eunpa Kim, Kyunghoon Kim
Summary: In this study, MoS2-Ag nanofillers were synthesized by photochemical deposition method and incorporated into TFC membranes for FO water treatment. The incorporation of MoS2-Ag nanofillers led to significant changes in the surface of membranes, especially a smoother active layer surface. The modified TFN membrane showed improved desalination capacity and resistance to alginate fouling compared to the TFC membrane.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Minsung Hong, Ho Lun Chan, John R. Scully, Peter Hosemann
Summary: The corrosion properties of Alloy 625 in molten FLiNaK salt were studied at 700 degrees C as a function of tellurium concentrations. It was found that under specific tellurium concentrations, tellurium-induced corrosion can be suppressed and protect the alloy against corrosion. The sample with 0.1 wt.% tellurium showed the lowest corrosion depth and mass loss, with the highest charge transfer resistance.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Physical
Yunjeong Park, Minsung Hong, Teayeop Kim, Hyeonseo Na, Sunho Park, Yeon Ju Kim, Jangho Kim, Yun-Hoon Choung, Kyunghoon Kim
Summary: In this study, the integration and ion transport characterization of carbon nanotube porins (CNTPs) in in vivo environments were investigated. The data from electrochemical analysis, both experimental and simulated, were used to analyze the membrane resistance of the equivalent circuits. The results show that CNTPs on a gold electrode exhibit high conductance for monovalent cations (K+ and Na+) and low conductance for divalent cations (Ca2+).
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Polymer Science
Truong Sinh Nguyen, Anton Nailevich Gafurov, Jeongdai Jo, Taik-Min Lee, Seung-Hyun Lee, Kyunghoon Kim
Summary: Micro- and nanofabrication on polymer substrate is essential for the development of flexible electronic devices, and roll-to-roll (R2R) nanoimprint lithography (NIL) is a promising technique for rapid and continuous production of nano-scale patterns. However, in large-scale R2R systems, bending can result in non-uniform force distribution during the imprinting process, impacting pattern quality. This study investigates the effects of R2R imprinting module geometry parameters on force distribution, identifies optimal parameter levels using grey relational analysis, and develops a simulation model for predicting force distribution non-uniformity.
Article
Nanoscience & Nanotechnology
Thi Sinh Vo, Truong Sinh Nguyen, Seung-Hyun Lee, Dinh Cong Tinh Vo, Dukjoon Kim, Kyunghoon Kim
Summary: This study creatively combines polydimethylsiloxane (PDMS) elastomer and three-dimensional (3D) porous conductive foams (CFs) to fabricate functional composites (CF-PDMS) via a low-cost, facile and simultaneous freeze-dry-covering method. These composites serve as sensors for detecting and monitoring human motions, possessing broad stretching and sensing ranges.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Engineering, Environmental
Yoonkyung Lee, Teayoep Kim, Bumsoo Kim, Sun Choi, Kyunghoon Kim
Summary: In this study, we synthesized amorphous MoSx (a-MoSx) and Ag on TiO2 to improve the removal of photocatalytic organic pollutants. The TiO2/a-MoSx/Ag (TMA) photocatalyst showed significantly enhanced degradation performance of methylene blue compared to TiO2 photocatalyst. Moreover, by coating the TMA photocatalyst on an ultrafiltration (UF) membrane using polydopamine (PDA), fouling of the membrane was successfully mitigated, resulting in increased hydrophilicity and improved flux recovery ratio.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Composites
Thi Sinh Vo, Khin Moe Lwin, Sun Choi, Kyunghoon Kim
Summary: In this study, hybrid membranes containing glass fibers and GO sheets, or a mixture of chitosan/GO, were fabricated for organic dye removal. The material properties were well investigated, and the hybrid membranes showed enhanced adsorption ability and favorable dye separation. The membranes were also reusable.
COMPOSITES RESEARCH
(2022)
Article
Engineering, Environmental
Thi Sinh Vo, Muhammad Mohsin Hossain, Tae Gyeong Lim, Ji Won Suk, Sun Choi, Kyunghoon Kim
Summary: In this study, the interfacial surface of glass fiber was modified using a graphene oxide/chitosan hybrid network for the first time to fabricate a composite membrane for waste-water treatment applications. The composite membrane exhibited excellent adsorption performance and recycling performance in removing cationic and anionic dyes. The adsorption performance was consistent with chemical adsorption and monolayer approach models.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Thi Sinh Vo, Muhammad Mohsin Hossain, TaeGyeong Lim, Ji Won Suk, Sun Choi, Kyunghoon Kim
Summary: This study presents a novel approach for the preparation of efficient dye-removing polymer composite membranes by modifying the surface of dialysis cellulose and incorporating an active graphene oxide-chitosan composite hydrogel network. The resulting membranes exhibit high adsorption capacities for both cationic and anionic dyes, as well as improved structural stability and sustainability during the recycling process.
ACS APPLIED BIO MATERIALS
(2022)
