Article
Materials Science, Multidisciplinary
Atsushi Hariki, Keisuke Higashi, Tatsuya Yamaguchi, Jiebin Li, Curran Kalha, Manfred Mascheck, Susanna K. Eriksson, Tomas Wiell, Frank M. F. de Groot, Anna Regoutz
Summary: This paper explores the satellites of the Ti 1s and 2p core level spectra of SrTiO3 and TiO2 using hard x-ray PES. The theoretical analysis emphasizes the importance of higher-order Ti-O charge-transfer processes and provides a robust prescription for using the computationally cheap cluster model in fitting analyses of core level spectra.
Article
Materials Science, Multidisciplinary
Tuan V. Vu, O. Y. Khyzhun, A. A. Lavrentyev, B. V. Gabrelian, K. F. Kalmykova, L. I. Isaenko, A. A. Goloshumova, P. G. Krinitsyn, G. L. Myronchuk, M. Piasecki
Summary: In this study, the electronic structure and optical constants of Li2In2GeSe6 compound were investigated through a combination of experimental and theoretical methods. XPS spectra of the crystal were measured and compared with theoretically calculated density of states (DOS). The calculations showed good agreement with the experimental results and yielded a band gap value of 2.26 eV. The optical properties of Li2In2GeSe6 were also studied in detail using the TB-mBJ+U technique.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Akinobu Yamaguchi, Takuo Ohkochi, Masaki Oura, Keisuke Yamada, Tsunemasa Saiki, Satoru Suzuki, Yuichi Utsumi, Aiko Nakao
Summary: The research focuses on the competition between magnetic shape anisotropy and induced uniaxial magnetic anisotropy in the heterojunction between a ferromagnetic layer and a ferroelectric substrate. It reveals the origin of the uniaxial magnetic anisotropy induced from the heterojunction and provides a means for simultaneous control of magnetism, mechanics, and electronics in nano/microsystems consisting of ferromagnetic/ferroelectric materials.
Article
Materials Science, Multidisciplinary
A. A. Rybkina, S. O. Filnov, A. Tarasov, D. Danilov, M. Likholetova, V. Yu Voroshnin, D. A. Pudikov, D. A. Glazkova, A. Eryzhenkov, I. A. Eliseyev, V. Yu Davydov, A. M. Shikin, A. G. Rybkin
Summary: The electronic and crystal structure of zero-layer graphene grown on 6H-SiC(0001) is modified after Co intercalation, transforming into a graphene monolayer with CoSi/CoSi2 structure formed between graphene and SiC substrate. The magnetic properties show ferromagnetic behavior with an open hysteresis loop, and the Dirac cone characteristic of quasi-freestanding graphene is observed.
Article
Biochemistry & Molecular Biology
Chao Yang, Yue Meng, Bo Xie, Shengjie Xia
Summary: The study systematically investigated the photon/matter interactions between soft X-rays and three selected polypeptides, revealing enhanced degradation in pre-solvated polypeptides due to the formation of photo-generated radicals. XPS analysis identified chemical changes in the polypeptides, with different degradation mechanisms observed in poly-Gly and poly-Arg. The critical role of amino acid interactions in the free-radical-generating living environment under irradiation was analyzed, highlighting the importance of sample preparation history in radiation-related chemical processes.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2021)
Article
Chemistry, Physical
P. Palaniappan, N. Lenin, R. Uvarani
Summary: A sonochemical reactor was used to synthesize Mn1-xCuxLa0.1Fe1.9O4 nanoferrites with different compositions, and their magnetic, electrical, and structural properties were investigated. The results showed that the crystalline structure and size of the nanoferrites were influenced by the Cu2+ content. The nanoferrites exhibited pseudocapacitance, resistive behavior, and soft ferromagnetic behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biochemistry & Molecular Biology
Petr M. M. Korusenko, Olga V. V. Petrova, Anatoliy A. A. Vereshchagin, Konstantin P. P. Katin, Oleg V. V. Levin, Sergey V. V. Nekipelov, Danil V. V. Sivkov, Victor N. N. Sivkov, Alexander S. S. Vinogradov
Summary: Comparative study of the electronic structure of the salen ligand in the H-2(Salen) molecule and the [Ni(Salen)] complex was conducted using experimental methods and DFT calculations. The observed chemical shifts in the salen ligand atoms indicated a substantial redistribution of valence electron density between these atoms. It is suggested that the electron density transfer in [Ni(Salen)] occurred from the Ni, N, and C atoms through the conjugated π-system of the ligand molecule. DFT calculations successfully described the UV PE spectra and confirmed the atomic structure of the ligand fragments in the nickel complex.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Antonio J. Martinez-Galera, Haojie Guo, Mariano D. Jimenez-Sanchez, Stefano Franchi, Kevin C. Prince, Jose M. Gomez-Rodriguez
Summary: This article investigates two major issues in nanoparticle catalysts: sintering and carbon contamination. By arranging Ir nanocrystals on a hexagonal boron nitride support, the nanoparticles can be restored and completely free from carbon contamination, providing new avenues for studying catalysis-mediated oxidation reactions.
Article
Physics, Multidisciplinary
D. Takegami, A. Tanaka, S. Agrestini, Z. Hu, J. Weinen, M. Rotter, C. Schuessler-Langeheine, T. Willers, T. C. Koethe, T. Lorenz, Y. F. Liao, K. D. Tsuei, H. -j. Lin, C. T. Chen, L. H. Tjeng
Summary: The electronic structure of LaCoO3 in the gradual spin-state and insulator-to-metal transitions was investigated using bulk-sensitive hard x-ray photoelectron and soft x-ray absorption spectroscopies. The temperature variation was found to cause strong variations in the spectra. Although the energy gap is reduced with increasing temperature, LaCoO3 is classified as a bad metal even in the metallic phase due to the small intensity near the Fermi level. By considering incoherent sums of low-spin and high-spin Co3+ spectra, the spectra were successfully explained. Moreover, it was discovered that the energy parameters for the two Co sites are significantly different, indicating the highly inhomogeneous nature of paramagnetic LaCoO3 with spin-state-specific local lattice relaxations. This provides a natural explanation for the debated temperature dependence of the activation energy for the transitions.
Article
Physics, Condensed Matter
Jiali Zhao, Kaihui Chen, Shi-En Li, Qinghua Zhang, Jia-Ou Wang, Er-Jia Guo, Haijie Qian, Lin Gu, Tian Qian, Kurash Ibrahim, Zhen Fan, Haizhong Guo
Summary: This study explores the evolution of the electronic structure of SrFeO3-x thin films during topotactic phase transformation using multiple analytical methods and reveals the emergence of a new unoccupied state with increasing oxygen content, leading to the insulator-to-metal transition.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Chemistry, Multidisciplinary
Wayne W. Lukens, Stefan G. Minasian, Corwin H. Booth
Summary: The degree of mixing between Ln 4f and O 2p orbitals was found to be similar to the mixing between Ln 5d and O 2p orbitals in LnO(2) compounds, which was unexpected. Although 4f orbitals are usually considered core-like and can weakly stabilize ligand orbitals through covalent interactions, the degree of mixing seemed to be incompatible with this perception. However, the amount of stabilization provided by mixing alone does not determine the overall stabilization in a covalent interaction.
Article
Physics, Condensed Matter
G. D. Dwivedi, S. M. Kumawat, Tsung-Wen Yen, C. W. Wang, D. Chandrasekhar Kakarla, Amish G. Joshi, H. D. Yang, Shin-Ming Huang, H. Chou
Summary: The study reveals the presence of a magneto-dielectric coupling in Mn1.5Cr1.5O4, which is attributed to changes in structural parameters caused by internal magnetism rather than a structural transition. Magneto-striction plays a key role as a link between magnetic and dielectric properties.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Chemistry, Physical
Yukun Jin, Yichen Jin, Kexin Li, Mouhui Yan, Yefei Guo, Yong Zhou, Alexei Preobrajenski, Yuriy Dedkov, Elena Voloshina
Summary: In this study, large-scale high-quality van der Waals CoPS3 single crystals were synthesized using a chemical vapor transport (CVT) method, and the crystallographic structure and electronic properties of this material were systematically studied using different spectroscopic methods accompanied by density functional theory (DFT) calculations. The results indicate that this material belongs to the class of mixed Mott-Hubbard/charge-transfer insulator and has important electronic, optical, and transport properties.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Physics, Applied
Sophia Sahoo, Anupam Jana, Satish Yadav, Rajeev Rawat, D. M. Phase, R. J. Choudhary
Summary: Exploring the electronic parameters contributing to the external control of conductivity of correlated systems like V2O3 is important for next-generation Mottronic devices. In this study, a resistive-switching phenomenon from the high-resistance state (HRS) to the low-resistance state is demonstrated in a V2O3 thin film by applying a dc voltage. The study reveals an electrically induced nonthermal resistive-switching effect in the V2O3 thin film.
PHYSICAL REVIEW APPLIED
(2023)
Article
Chemistry, Physical
Yujun Zhang, Jiahui Chen, Keisuke Ikeda, Kohei Yamagami, Yue Wang, Yongseong Choi, Akira Yasui, Jing Ma, Yuanhua Lin, Cewen Nan, Hiroki Wadati
Summary: In this study, the magnetism and electronic structure changes across the AFM-FM transition of Ni-doped FeRh epitaxial thin films were investigated using XMCD and HAXPES techniques. The results showed that the remnant FM phase at low temperature possesses a smaller Rh moment than the normal FM phase, while an increase of Rh 4d density of state at the Fermi level and a possible well-screened Ni 2p state were found in the FM phase. In addition, the FM fluctuation of the inter-site Fe-Fe exchange coupling within the AFM phase was observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Grasielli C. de Oliveira, Priscila O. Vicentino, Ricardo J. Cassella, Yutao T. Xing, Eduardo A. Ponzio
Summary: The study introduced a composite electrode AGCE-BiF for the simultaneous determination of Cd2+ and Pb2+ in gasoline samples, with improved sensitivity through in situ modification with a bismuth film. The sensor exhibited satisfactory recoveries and precision, comparable to those obtained with FAAS.
Article
Materials Science, Multidisciplinary
E. B. Peixoto, M. H. Carvalho, J. G. S. Duque, D. Muraca, Y. T. Xing, W. C. Nunes
Summary: Magnetic properties of Fe30Ni70 nanoalloys dispersed in a silica matrix were studied, showing superparamagnetic behavior with blocking effects appearing around T = 10 K. Interaction effects and nanoparticle size distribution were found to play important roles in determining the magnetic behavior of the sample. A simple modification of the random anisotropy model (RAM) was used to analyze the unusual magnetic-field-dependence of the blocking temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Chemistry, Physical
Glauco S. Maciel, Whualkuer B. Lozano, Yutao Xing, Nikifor Rakov
Summary: The study investigated the performance of neodymium-doped alkaline-earth fluoride crystalline powders for optical temperature sensing applications, revealing that near-infrared luminescence spectral profile of Nd3+ changes with temperature suitable for optical thermometry operation within the first biological window. Nd3+:CaF2 showed the highest thermometric sensitivity values, outperforming standard materials like beta-NaYF4 and competing with efficient oxide nanostructured materials. The use of thermometry data to understand structural properties through Judd-Ofelt intensity standard parameters was also discussed.
Article
Physics, Applied
Mauro M. Doria, Liying Liu, Yutao Xing, I. L. C. Merino, F. J. Litterst, E. Baggio-Saitovitch
Summary: We report on the experimental observation of the variation of the superconducting critical temperature (T(c)) of Ni/Bi systems as a function of total deposited film thickness and provide an explanation using a theoretical model. The formation of the superconducting compound NiBi3 at Ni/Bi interfaces in the resulting films is thermodynamically favored by volume contraction. Our theoretical calculations predict the dependence of T(c) on the thicknesses of the NiBi3 and Bi layers, as well as the strength of the potential barrier that blocks electron migration. We find agreement between the predicted T(c) values and experimental data, suggesting that our model can explain the observed variation of T(c) with thickness.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
A. C. L. B. Lustosa, M. Evers, D. F. Franceschini, F. J. Litterst, Yutao Xing
Summary: This study investigates the sp-hybridization signal in carbon nanofoams using Surface Enhanced Raman Spectroscopy and High-Resolution Transmission Electron Microscopy. The results suggest that the sp signal mainly comes from short carbon atom chains formed between carbon nanoparticles due to low-energy collisions during deposition.
Article
Nanoscience & Nanotechnology
Albina Mikhraliieva, Oleg Tkachenko, Raphael Freire, Volodymyr Zaitsev, Yutao Xing, Anton Panteleimonov, Maria Stromme, Tetyana M. Budnyak
Summary: In this study, carbon nanodots were used as a modifier for electrochemical sensors to detect estrogens in water samples. The carbon nanodots showed high sensitivity and selectivity for estrogens when embedded on a chitosan-modified electrode. The results demonstrate the potential of carbon nanodots as a promising modifier for electrochemical detection of estrogens.
ACS APPLIED NANO MATERIALS
(2022)
Article
Pharmacology & Pharmacy
Bianca A. da Silva, Michael Nazarkovsky, Helmut Isaac Padilla-Chavarria, Edith Alejandra C. Mendivelso, Heber L. de Mello, Caue de S. C. Nogueira, Rafael dos S. Carvalho, Marco Cremona, Volodymyr Zaitsev, Yutao Xing, Rodrigo da C. Bisaggio, Luiz A. Alves, Jiang Kai
Summary: The study focused on the synthesis and biocompatibility analysis of doped nanoparticles with potential cancer treatment applications. These nanoparticles exhibited good crystallinity and uniform distribution of rare earth oxides.
Article
Materials Science, Ceramics
Quezia Manuela Goncalves Laurindo, Joice Medeiros Borges Rosa, Renan da Silva Guimara, Rafael Delorence Lugon, Yutao Xing, Ludiane Silva Lima, Marcello Filgueira
Summary: In this study, molybdenum was investigated as a binder for sintered polycrystalline diamond (PCD) produced by HPHT technology. The presence of molybdenum greatly influenced the comprehensive properties of the PCD at different temperatures. The results suggest that molybdenum could potentially serve as an alternative binder for producing well-sintered PCDs.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Mattheus H. M. Pires, Fabio B. Passos, Yutao Xing
Summary: In this study, HZSM-5 supported bimetallic Ru-Cu catalysts were used to convert glycerol from biodiesel production into propanediols through the hydrogenolysis reaction. The catalysts were characterized using physisorption analysis, XPS analysis, and chemisorption analysis. It was found that the bimetallic catalysts showed an improvement in selectivity to propanediols, although they had lower activity and reaction's TOF compared to the monometallic catalysts. The results indicate that Ru dilutes Cu and the interaction between Ru and Cu plays a crucial role in the catalytic performance.
Article
Chemistry, Physical
Guilherme de Souza Garrido, Lucas Ribeiro Francisco, Raimundo C. Rabelo-Neto, Yutao T. Xing, John Munera, Jonas Marcelle, Gary Jacobs, Fabio B. Noronha
Summary: This study investigates the effect of different vanadia loadings on the performance of Pd/VOx/SiO2 catalysts for the gas phase hydrodeoxygenation (HDO) of phenol. In situ XANES experiments reveal a mixture of V2O4 and V4O7 species for all catalysts after reduction. In situ XRD and XANES show that the close contact between Pd particles and VOx species is likely due to the presence of polymerized vanadate species.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Inorganic & Nuclear
Mengying Ma, Caio Machado Fernandes, Mengfei Li, Angela Caroliny A. Pinto, Camilla M. Alves, Dante F. Franceschini, Eduardo M. Rodrigues, Eduardo A. Ponzio, Julio Cesar M. Silva, Yutao Xing
Summary: Nickel nanoparticles supported on carbon cloth (NiNP/CC) with different deposition time (20s, 40s and 60s) were prepared using Pulsed Laser Deposition (PLD). It was observed that the agglomeration of the nickel nanoparticles increased with longer deposition time. Cyclic voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) measurements showed that NiNP/CC 20s had higher electrocatalytic activity for urea electro-oxidation reaction (UER) in alkaline media.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Albina Mikhraliieva, Michael Nazarkovsky, Ricardo Queiroz Aucelio, Yutao Xing, Volodymyr Zaitsev
Summary: Nitrogen-doped carbon nanodots (CNDs) with a high quantum yield of photoluminescence (up to 95%) were synthesized by thermal treatment of citric acid embedded in silica with immobilized N-[3-(Trimethoxysilyl)propyl]ethylenediamine. The use of nanoreactors allowed for the spatial isolation of molecular precursors, resulting in the preparation of high-quality spherical nanoparticles with a size of 2-5 nm. The obtained CNDs exhibited excitation-independent photoluminescence at 453 nm, indicating their potential as efficient photoluminescent materials. The presence of ordered crystalline structures in the CNDs, as revealed by HRTEM, suggests the catalytic effect of the nanoreactor. XPS analysis confirmed the nitrogen doping in the CNDs, with 4.0 at. % of nitrogen atoms incorporated into the graphene core as pyrrolic and ternary fragments.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Taissa F. Rosado, Isael P. Costa, Juliana Nadier, Roberto R. de Avillez, Yutao Xing, Guilhermo Solorzano, Augusto C. A. Silva, Andre H. B. Dourado, Clenilton C. dos Santos, Vinicius W. Faria, Marco A. Fraga, Guilhermo Jaldyr Junior, Auro A. Tanaka, Marco A. S. Garcia, Anderson G. M. da Silva
Summary: The surface area and shape of nanocrystals have a significant impact on their activities in fuel cells. Additionally, the presence of crystalline defects and the relative concentration of CuI/CuII can also affect their activities. The catalytic activities of CuxO nanocubes with different sizes are not solely determined by the gain of surface area.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Elisangela Gomes de Lima Oliveira, Mario Cesar Albuquerque de Oliveira, Yutao Xing, Glauco S. Maciel, Anderson Stevens Leonidas Gomes, Helinando P. de Oliveira
Summary: The detection of traces of polymyxin B from fluorescence resonant energy transfer systems based on pairs of rhodamine B (donor) and citrate-capped gold nanoparticles acceptors (Au NPs) is investigated. The sensitivity of these sensors depends on the relative concentration of gold nanoparticles, with a limit of detection of 3.9 ppm.
RESULTS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Israel R. Azevedo, Andressa A. A. da Silva, Yutao T. Xing, Raimundo C. Rabelo-Neto, Niels T. J. Luchters, Jack C. Q. Fletcher, Fabio B. Noronha, Lisiane V. Mattos
Summary: This study investigated the influence of dopants (Gd, Nb, Pr, and Zr) on the performance of Pt/CexMe1-xO2-g/Al2O3 catalysts for methane steam reforming. The results showed that dopants improved the reducibility and stability of the catalysts, with Nb-doped ceria demonstrating the highest stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)