Article
Chemistry, Multidisciplinary
Han Zhu, Shuhui Sun, Jiace Hao, Zechao Zhuang, Songge Zhang, Tongde Wang, Qi Kang, Shuanglong Lu, Xiaofan Wang, Feili Lai, Tianxi Liu, Guohua Gao, Mingliang Du, Dingsheng Wang
Summary: By regulating the atomic environment of high-entropy-alloy (HEA) electrocatalysts, inactive sites can be transformed into active sites, leading to enhanced catalytic activity. A high-entropy FeCoNiCuMn HEA nanoparticle was synthesized by integrating low-electronegativity Mn and high-electronegativity Cu with Fe, Co, and Ni base metals, which facilitated the transformation of inactive Cu to electron-enriched active sites. This resulted in reduced adsorption energies of reactants, intermediates, and products, leading to improved hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activity. The HEA exhibited superior electrocatalytic activity and cycling stability, surpassing Pt/C and IrO2 catalysts. This work represents a breakthrough in the design of advanced HEA electrocatalysts for complex reactions.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Andre do Nascimento Barbosa, Cesar Augusto Diaz Mendoza, Yu Lei, Marco Giarola, Mauricio Terrones, Gino Mariotto, Fernando Lazaro Freire Junior
Summary: Defect engineering plays a crucial role in improving specific properties of two-dimensional materials. This study synthesized monolayer WS2 using chemical vapor deposition and introduced defects through Ar plasma treatment. The changes in properties were analyzed using various spectroscopy techniques, revealing the influence of defects on photoluminescence signal and providing a quantitative analysis of defect evolution in WS2 monolayers.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
P. Varshney, R. S. Mishra, N. Kumar
Summary: The present study provides a detailed analysis of the passivation film characteristics of a high entropy alloy in a NaCl solution. The alloy exhibits excellent uniform corrosion resistance but poor resistance to pitting corrosion. The passivation film is found to have a bilayer structure, with the upper layer rich in Mn and Cr and the inner layer devoid of Mn and Cr.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Olivier Schalm, Alessandro Patelli, Patrick Storme, Amandine Crabbe, Stefano Voltolina, Vitaliy Feyer, Herman Terryn
Summary: The study found that the plasma afterglow was able to reduce all sulphides on the tarnished surfaces except for Cu2S, providing a detailed picture of the submicrometric evolution of the tarnished layers.
Review
Chemistry, Physical
Rouba Ghobeira, Parinaz Saadat Esbah Tabaei, Rino Morent, Nathalie De Geyter
Summary: Non-thermal plasma surface functionalization of polymeric materials has gained increasing attention in various application fields in recent decades. However, the diversity of chemical reactions occurring between the surface and the active species in plasma can result in non-specific surface functional groups. Achieving controlled surface chemistries can be challenging as it requires optimization of working parameters and comprehensive analysis of plasma-surface interactions.
SURFACES AND INTERFACES
(2022)
Article
Multidisciplinary Sciences
Blazej Anastaziak, Weronika Andrzejewska, Marek Schmidt, Michal Matczak, Ivan Soldatov, Rudolf Schaefer, Mikolaj Lewandowski, Feliks Stobiecki, Christian Janzen, Arno Ehresmann, Piotr Kuswik
Summary: We studied the structural, chemical, and magnetic properties of Ti/Au/Co/Ni layered systems subjected to plasma oxidation. The process leads to the formation of NiO and does not affect the surface roughness and grain size of the Co/Ni bilayers. By using plasma oxidation, we were able to create 2D heterostructures with different magnetic properties.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Chunlong Cheng, Qichi Le, Chenglu Hu, Tong Wang, Qiyu Liao, Xiaoqiang Li
Summary: A novel robustness mineralized layer was prepared on the surface of an AZ80-0.38Nd alloy using isothermal oxidation, mineralization, and pyrolysis treatments. The layer mainly consists of rod-like and flake-like structures, exhibiting outstanding robustness. The in-situ rod and flake crystals act as reinforcing and toughening agents, improving the adhesion strength and densification of the layer. The research contributes a promising method for surface modification of magnesium alloys.
APPLIED SURFACE SCIENCE
(2022)
Article
Polymer Science
Fernando G. Flores-Nava, Rosario Ramirez, M. Guadalupe Olayo Gonzalez, Elena Colin-Orozco, J. Cuauhtemoc Palacios Gonzalez, Guillermo J. Cruz
Summary: This study synthesized polyallylamine (PAl) particles from allylamine using resistive-inductive electrical glow discharges. It is the first time that PAl particles were obtained directly from allylamine without other components. PAl has various applications as a biomaterial, mainly due to its high amine content.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Shitong Xu, Jiansong Huang, Wen Pei, Meiyi Yao, Lijuan Hu, Yaoping Xie, Xiaodong Lin, Xue Liang, Jianchao Peng, Jing Xu, Bangxin Zhou
Summary: The experimental results showed that reducing the tin content can improve the corrosion resistance of the alloy in deaeration and oxygen-containing environments, while the presence of oxygen accelerated the corrosion rate of the alloy. However, with the increase of tin content, the enhancing effect of oxygen on corrosion weakened to some extent.
Article
Energy & Fuels
Simona E. Hunyadi Murph, Henry Sessions, Kaitlin Coopersmith, Michael Brown, Patrick A. Ward
Summary: Controlled and selective release of hydrogen isotopes from lanthanum-nickel-aluminum (LANA) materials was achieved using an alternating electromagnetic field (AEMF), demonstrating a promising pathway for applications requiring the controlled release of hydrogen and separation of its isotopes through rapid and selective desorption directly heating the LANA material with AEMF.
Article
Engineering, Electrical & Electronic
Huihui Xie, Jinsheng Li, Shuzhen Yang, Lei Wu, Pengfei Li, Xiwei Qi
Summary: The successful fabrication of high entropy ceramics (La0.2Pr0.2Nd0.2Sm0.2Eu0.2)(2)Ce2O7 was achieved using the solid-state reaction method. The study showed that sintering temperatures significantly influenced the structure and properties of the ceramics. The high entropy ceramics exhibited good dielectric stability at high frequencies and potential application value in the field of microelectronics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
M. Grodzicki, D. Majchrzak, E. Zdanowicz, C. Benjamin, P. Ciechanowicz, G. R. Bell, R. Kudrawiec, D. Hommel
Summary: New alloys from the III-V family, AlGaNAs, are introduced, showing potential with As incorporation modifying the valence band in AlGaN. Calculations based on the band anticrossing model reveal that the band gap of AlGaNAs is reduced compared to AlGaN but higher than GaNAs with the same As content.
Article
Nanoscience & Nanotechnology
Rajasree Das, Liang Ye, Sumit Sukhbasi Lal, Hasan Ahmadian Baghbaderani, Ranajit Sai, Michael Hayes, Michael A. A. Morris, Paul McCloskey
Summary: FeSiB based soft magnetic flakes coated with optimally thick SiO2 were produced by mechanical ball milling and optimized sol-gel coating. The milling process reduced ribbon thickness to minimize eddy current loss, and a tiny fraction of the flakes were allowed to become nanocrystalline, enhancing saturation flux density and permeability without incurring additional losses. A stress-releasing post-annealing process further improved the magnetic properties without affecting the insulating SiO2 layer.
Article
Physics, Applied
J. Conway, M. Snelgrove, P. Yadav, K. Shiel, R. Lundy, A. Selkirk, R. O'Connor, M. A. Morris, M. M. Turner, S. Daniels
Summary: This study investigates the conversion of metal salt infiltrated polymer films to metal oxide films using oxygen plasma treatments in an asymmetrical capacitively coupled plasma system. The impact of radio frequency power, gas pressure, and process time on plasma composition and resulting metal oxide films is examined. Various measurement techniques are used to monitor the plasma and analyze the sample surfaces. Gas pressure and RF power are found to significantly influence ion energy and the ratio of atomic oxygen to molecular ions in the plasma, which affect the formation of the surface layer.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
J. Ledieu, M. Feuerbacher, C. Thomas, M-C de Weerd, S. Sturm, M. Podlogar, J. Ghanbaja, S. Migot, M. Sicot, V Fournee
Summary: The study focused on the (110) and (320) surfaces of single-phase FeCrMnNiCo solid solution, finding a clear surface co-segregation of Mn and Ni. At high temperatures, Mn desorbs while the Ni content increases linearly. Different surface morphologies and structures were observed using low energy electron diffraction and scanning tunneling microscopy.
Article
Nanoscience & Nanotechnology
Iryna Sulym, Malgorzata Wisniewska, Liudmyla Storozhuk, Konrad Terpilowski, Dariusz Sternik, Mykola Borysenko, Anna Derylo-Marczewska
Summary: A series of highly dispersed nanocomposites were synthesized using a liquid-phase method, resulting in amorphous particles with a sphere-like morphology of uniform size and shape post-calcination at different ratios. The agglomerated particles of nanocomposites in the aqueous medium ranged from 200 to 850 nm, showing good stability.
APPLIED NANOSCIENCE
(2022)
Article
Engineering, Environmental
Dimitrios A. Giannakoudakis, Ioannis Anastopoulos, Mariusz Barczak, Evita Antoniou, Konrad Terpilowski, Elmira Mohammadi, Mahmoud Shams, Emerson Coy, Aristides Bakandritsos, Ioannis A. Katsoyiannis, Juan Carlos Colmenares, Ioannis Pashalidis
Summary: The study presents a phosphonate functionalized ordered mesoporous silica as an efficient adsorbent for uranium removal in acidic conditions, achieving a high up-to-date capacity of 345 mg/g at pH = 4. The presence of other polyvalent cation does not affect the efficiency of adsorption, suggesting inner-sphere complex formation as the mechanism. The surface chemistry was found to be the key feature for the selective and stable removal of U(VI) species, based on spectroscopic validations of surface adsorbed U(VI).
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Michal Chodkowski, Iryna Ya. Sulym, Konrad Terpilowski, Dariusz Sternik
Summary: In this study, silica-multiwalled carbon nanotubes/poly(dimethylsiloxane) composite coatings were prepared using the sol-gel technique, exhibiting hydrophobicity, high transmittance, and rough surface. After treatment with hexamethyldisilazane, the coatings showed a large water contact angle and thermal stability.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Jan Malecki, Konrad Terpilowski, Maciej Nastaj, Bartosz G. Solowiej
Summary: The main objective of this study was to investigate the possibility of using a combination of vegetable proteins and liquid syrups in high-protein bars. The combinations of proteins and syrups had positive effects on the hardness reduction of the bars. Microstructure and contact angle showed a large influence on the features of the manufactured products. The combination of proteins and syrups significantly reduced the sugar content of the product, and certain combinations showed a high potential for use in this type of products.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Chemistry, Physical
Ewelina Kuzmicz-Miroslaw, Marcin Kusmierz, Konrad Terpilowski, Mateusz Smietana, Mariusz Barczak, Magdalena Staniszewska
Summary: This study thoroughly investigated the effect of three popular surface activation methods on the titanium oxide surface to identify the most effective protocol for enhancing hydrophilicity. The results showed that all three methods resulted in an enhanced hydrophilic surface, as evidenced by reduced contact angle values. The chemical and morphological features responsible for the increased hydrophilicity were further examined using atomic force microscopy and X-ray photoelectron spectroscopy.
Article
Chemistry, Applied
Marcin Bartman, Sebastian Balicki, Lucyna Holysz, Kazimiera A. Wilk
Summary: Examples of nanostructured fluids (NSFs) used as highly specialized brush-on, wipe-off detergents for the removal of graffiti coatings resistant to removal are water-in-oil nanoemulsions that have been stabilized with nonionic saccharide surfactants. Safe and ecofriendly nanodetergents were produced using high-pressure homogenization (HPH) with ingredients such as D-limonene or 3-methoxy-3-methyl-1-butanol, esterified vegetable oils, and alkyl polyglucosides (APG). The effectiveness of these nanodetergents in removing stubborn graffiti coatings varied, indicating that surface properties of the coatings alone may not determine the removal efficiency.
JOURNAL OF SURFACTANTS AND DETERGENTS
(2023)
Article
Food Science & Technology
Marta Tomczynska-Mleko, Konrad Terpilowski, Salvador Perez-Huertas, Viktoria Sapiga, Galina Polischuk, Bartosz Solowiej, Maciej Nastaj, Marta Wesolowska-Trojanowska, Stanislaw Mleko
Summary: The study investigated the gelation process of binary mixes of pumpkin-seed and egg-white proteins. Substituting pumpkin-seed proteins with egg-white proteins improved the rheological properties of the obtained gels. Gels with a higher egg-white protein content were more elastic and resistant to breaking, while a higher concentration of pumpkin-seed protein changed the gel microstructure to a rougher and more particulate one.
Article
Chemistry, Physical
Lucyna Holysz, Paulina Rek, Milosz Huber, Konrad Terpilowski
Summary: In this study, the quality of limestone and dolomite aggregates was evaluated through methylene blue adsorption experiments. The results showed good repeatability using both the methylene blue stain test and the adsorption experiment. The measured specific surface areas differed between N2 adsorption and methylene blue adsorption, which can be attributed to the presence of quartz and clay minerals in the aggregates.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2023)
Article
Chemistry, Physical
Alla Dyachenko, Konrad Terpilowski, Olena Ischenko, Iryna Sulym, Dariusz Sternik, Eugen Pakhlov, Mykola Borysenko, Lyudmila Storozhuk, Lyudmila Andriyko, Olena Goncharuk
Summary: A series of mixed oxides were synthesized by depositing the guest phase on highly dispersed oxide matrices. The composition and structure of the oxide matrices and the deposited guest phase were found to have a significant influence on the morphology of the resulting composites.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2023)
Editorial Material
Chemistry, Applied
Kash Mittal, Konrad Terpilowski, Brian Grady, Ronald Marquez
JOURNAL OF SURFACTANTS AND DETERGENTS
(2023)
Article
Chemistry, Applied
Emil Chibowski, Konrad Terpilowski, Lucyna Holysz, Aleksandra Szczes
Summary: The effects of magnetic field treatment on water or solution are still of interest, but there have been relatively few studies on pure surfactant solutions. This study investigated the effects of magnetic field treatment on pure aqueous surfactant solutions, including cationic, anionic, and nonionic surfactants. The results showed that both uniform and gradient magnetic fields can cause changes in surface tension, with the effects being stronger in the gradient field. The specific changes in surface tension depend on the type and concentration of surfactant.
JOURNAL OF SURFACTANTS AND DETERGENTS
(2023)
Article
Chemistry, Physical
Konrad Terpilowski, Emil Chibowski
Summary: This research focuses on the preparation of chitosan films and the effect of plasma treatment on their surface properties. It was found that plasma activation can increase the polarity of chitosan films.
COLLOIDS AND INTERFACES
(2022)
Article
Chemistry, Physical
Konrad Terpilowski, Lucyna Holysz, Michal Chodkowski, David Clemente Guinarte
Summary: This study focused on determining the surface free energy in plasma-activated polyoxymethylene (POM) polymer. It highlights the complexity of contact angle measurements and the significant energy changes when calculated based on polar or non-polar liquid angles.
COLLOIDS AND INTERFACES
(2021)
