Article
Electrochemistry
Da-Je Hsu, Yu-Wen Chi, Kun-Ping Huang, Chi-Chang Hu
Summary: In this study, nitrogen-doped graphene nanowalls (N-GNWs) were prepared using CH4, C2H4, and C2H2 as carbon sources mixed with Ar and NH3 via plasma-enhanced chemical vapor deposition. The introduction of NH3 significantly improved the adhesion of N-GNWs on Ti substrates. After electrochemical activation, N-GNW-C2H2 exhibited the highest specific capacitance, making it a suitable material for the negative electrode of a high-voltage, asymmetric supercapacitor in organic electrolytes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Energy & Fuels
Begum Bozkaya, Jochen Settelein, Miriam Komma, Grazyna Gryglewicz, Gerhard Sextl, Guinevere A. Giffin
Summary: The study showed the impact of carbon surface basicity on the electrochemical activity and dynamic charge acceptance (DCA) of lead-carbon electrodes. It was found that carbon pH values significantly affect the DCA of lead-acid batteries.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Yuxiang Bao, Xiuhui Zheng, Jianlin Cao, Shuo Li, Yongxiao Tuo, Xiang Feng, Mingyuan Zhu, Bin Dai, Chaohe Yang, De Chen
Summary: This study presents a template-free and organic solvent-free strategy to synthesize a non-metallic based nitrogen-doped carbon catalyst for acetylene hydrochlorination. The catalyst exhibited outstanding performance due to its high pyrrolic N content and ability to effectively mediate HCl adsorption.
Article
Energy & Fuels
Gyawali Ghanashyam, Hae Kyung Jeong
Summary: A nitrogen-doped plasma treated carbon nanofiber was prepared for supercapacitor applications, showing significant improvements in specific capacitance, cyclic stability, and rate capability. With nitrogen doping, the electrochemical active surface area increased by four times, leading to a high specific capacitance of 495 Fg(-1) and excellent cyclic stability and rate capability.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Nan Li, Yueyu Tong, Hao Li, Liqun Wang, Feng Hou, Shi Xue Dou, Ji Liang
Summary: Boron-doped carbon nanosphere serves as a metal-free electrocatalyst that can activate N=N triple-bonds, suppress the HER, and achieve high NH3 yield rate and high Faradaic efficiency simultaneously.
Article
Chemistry, Physical
Huibo Wang, Mengling Zhang, Kaiqiang Wei, Yajie Zhao, Haodong Nie, Yurong Ma, Yunjie Zhou, Hui Huang, Yang Liu, Mingwang Shao, Zhenhui Kang
Summary: Nitrogen-doped carbon dots (TA-NCDs) synthesized via hydrothermal method exhibit oxidase-like activity under visible light irradiation, with the potential to induce bioactivity in killing cells.
Article
Electrochemistry
Huiying Ouyang, Weifeng Li, Yumei Long
Summary: A novel electrochemical sensor based on carbon-doped hexagonal boron nitrogen (C-hBN) was demonstrated for dopamine (DA) detection. The carbon-doping enhanced the sensor's sensitivity towards DA detection, providing a wide linear response range and promising performance in real samples.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Caiyun Xu, Sheng Yang, Qinlong Fan, Zhizhong Xie, Dan Liu, Xi Li, Ruiming Zhang, Haolin Tang, Junsheng Li, Deyu Qu
Summary: To enhance the hydrogen storage performance, Pt-Co bi-metallic nanoparticles were decorated onto N-doped mesoporous carbon material where Co enriched the capacity and Pt enhanced the kinetic performance. The 2% Pt-Co@NMC material exhibited a hydrogen storage capacity of over 360 mAh g-1 at a current density of 100 mA g-1, with a capacity retention of 53.6% at the 2000 mA g-1 rate compared to 100 mA g-1. It also showed low self-discharge and good cycling performance. First-principles calculations demonstrated that the adsorption of H atom on the Pt (110) crystal plane was the most stable, contributing to the improvement of the kinetic performance for hydrogen intercalation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Weiwei Zhu, Dekui Shen
Summary: The development of high-performance anode materials is crucial for enhancing the electrochemical performance of asymmetric supercapacitors. In this study, nickel ferrite/nitrogen-doped porous carbon composite was successfully synthesized and exhibited improved electrochemical properties. The specific capacitance, energy density, and cycle stability of the composite were significantly enhanced by increasing the nitrogen content on the porous carbon surface. The nitrogen atoms provided active sites for the growth of nickel ferrite nanoparticles, enhancing the interfacial effect between the nanoparticles and carbon materials.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Materials Science, Multidisciplinary
Yue Wang, Chen Zhang, Xinjian Li, Tian Gao, Xue-Bin Wang
Summary: This paper focuses on the application of carbon nanomaterials in the field of electrocatalysis, discussing the doping effects of single elements (N, S, B, O, P) and double elements in carbon-based nonmetallic electrocatalysts, with a particular emphasis on their impact on reductions of nitrogen and carbon dioxide. Challenges and future prospects are also addressed.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
Shuaijie Li, Jianzhi Wang, Jingyuan Wang, Chen Chen, Ziyi Guo, Ning Cai, Yanan Xue, Faquan Yu
Summary: By utilizing nanoparticles of Prussian blue analogue and nitrogen-carbon doped CoFe2O4 species, the research team has successfully enhanced the activity and stability of the oxygen evolution reaction. This catalyst shows superior activity compared to RuO2 in alkaline medium and provides a sustained current density over a continuous working period.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Multidisciplinary
Balaram Paudel Jaisi, Rucheng Zhu, Golap Kalita, Masayoshi Umeno
Summary: The growth of carbon thin films on insulating substrates with nitrogen doping at various temperatures was investigated using microwave-excited surface wave plasma chemical vapor deposition technique. Partially graphitized carbon thin films were obtained at a low temperature of 150 degrees C on quartz substrates. The addition of nitrogen reduced the granular morphology and formed planar structures, revealing the significance of nitrogen incorporation in controlling the morphology of carbon films.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Electrochemistry
Caiyun Xu, Hongwei Yang, Zhizhong Xie, Dan Liu, Hua Zheng, Xi Li, Ruiming Zhang, Haolin Tang, Junsheng Li, Deyu Qu
Summary: The development of new functional materials for sustainable energy technologies has received great attention due to the rapid growth in energy demands and environmental concerns. Mesoporous carbon-based materials, as emerging materials, have unique properties and have been considered promising candidates for electrochemical hydrogen storage applications. This study investigated the electrochemical hydrogen storage properties of nitrogen-doped layered mesoporous carbon sheets, which were prepared by the double-hard-template route. The results showed that the nitrogen-doped layered mesoporous carbon sheets exhibited high hydrogen storage capacity, good capacity retention, and superior cycling stability, making them suitable as potential active materials for hydrogen-proton-related devices.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Alenka Vesel, Rok Zaplotnik, Gregor Primc, Luka Pirker, Miran Mozetic
Summary: This one-step method involves plasma synthesis of nitrogen-doped carbon nanomesh using a molten polymer as the carbon source and inductively coupled nitrogen plasma as the source of highly reactive nitrogen species. The deposition rate of nanocarbon layer is nearly 0.1 µm/s, resulting in multilayer graphene nanosheets or nanoflakes with nitrogen in configurations like graphitic, pyridinic, and pyrrolic. The nitrogen concentration on the film surface increases with deposition time and saturates at approximately 15 at.%, while oxygen concentration decreases and saturates at around 2 at.%.
Article
Engineering, Electrical & Electronic
Marcin Kowalski, Mateusz Brodowski, Karolina Dziabowska, Marta Skwarecka, Mateusz Ficek, Dawid Nidzworski, Robert Bogdanowicz
Summary: This study reports the development of an electrochemical immunosensor for the detection of bacteria from the Pseudomonas genus. The sensor demonstrated high sensitivity and specificity, and utilized boron-doped carbon nanowalls as the sensing material. The study highlighted the importance of material choice and modification procedure in determining sensor performance.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Lavinia Gabriela Carpen, Tomy Acsente, Veronica Satulu, Elena Matei, Sorin Vizireanu, Bogdan Ionut Bita, Gheorghe Dinescu
Summary: This study presents hybrid nanomaterial architectures synthesized using a mechanism based on tungsten oxide sublimation and vapor condensation, decorating carbon nanowalls templates. The decoration process is strongly dependent on the temperature of the CNW templates and the presence of plasma. The results are significant for applications in sensing, photochemistry, fusion technology, and material redeposition observed in fusion machines.
Article
Biochemistry & Molecular Biology
Maria Elena Zarif, Sasa Alexandra Yehia, Bogdan Bita, Veronica Satulu, Sorin Vizireanu, Gheorghe Dinescu, Alina Maria Holban, Florica Marinescu, Ecaterina Andronescu, Alexandru Mihai Grumezescu, Alexandra Catalina Birca, Alexandru Titus Farcasiu
Summary: Despite technological progress, dental caries remains the most common oral health threat, largely due to microbial degradation of enamel. A cold plasma-based method can modulate microbial attachment and biofilm formation, enhance fluoride retention, and prevent caries and enamel deterioration.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Anatomy & Morphology
Stefan Talu, Erveton P. Pinto, Robert S. Matos, Amir Zelati, Shahram Solaymani, Azizollah Shafiekhani, Atefeh Ghaderi
Summary: This study analyzed the image of kefir biofilms associated with Acai extract. The concentration of Acai berry was found to influence the surface morphology and fractal dimension of the biofilms. The results suggested that a concentration of 40 to 60 ml of Acai berry led to saturation of the biofilm surface. The intermediate sample produced with 20 ml of Acai berry showed promise as a skin dressing.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Anatomy & Morphology
Laya Dejam, Shahram Solaymani, Slawomir Kulesza, Atefeh Ghaderi, Stefan Talu, Miroslaw Bramowicz
Summary: This article presents a method for fabricating and characterizing transparent oxide-based junction diodes on quartz substrates. The microstructure, crystalline structure, and micromorphology features of the deposited samples are studied, and statistical, fractal, and functional surface characteristics are derived. Optical and electrical measurements are also carried out. The results show that the diodes have good optical transparency and current-voltage characteristics.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Multidisciplinary Sciences
Atefeh Ghaderi, Azizollah Shafiekhani, Shahram Solaymani, Henrique Duarte da Fonseca Filho, Nilson S. Ferreira, Robert Saraiva Matos, Hadi Zahrabi, Laya Dejam, Stefan Talu
Summary: In this study, the morphology of synthesized Cu/Ni nanoparticles in the presence of carbon sources was investigated, and their gas sensing applications were studied. The surface morphology was analyzed using atomic force microscopy and fractal/multifractal analyses. The quality of the nanoparticles was confirmed using Rutherford backscattering spectra, and their gas sensing properties were studied using localized surface plasmon resonance method.
SCIENTIFIC REPORTS
(2022)
Article
Biochemistry & Molecular Biology
Adriana Elena Balan, Bogdan Ionut Bita, Sorin Vizireanu, Gheorghe Dinescu, Ioan Stamatin, Alexandra Maria Isabel Trefilov
Summary: We designed a novel cathode microporous layer (MPL) based on highly hydrophobic carbon nanowalls (CNW) and produced high-quality MPLs using plasma-assisted chemical vapor deposition techniques. The MPLs exhibited high porosity, good stability, considerable durability, high hydrophobicity, and substantial conductivity. Single-fuel-cell testing showed improved power performance comparable to industrial quality membrane assemblies.
Article
Multidisciplinary Sciences
Robert S. Matos, Nilson S. Ferreira, Stefan Talu, Atefeh Ghaderi, Shahram Solaymani, Marcelo A. Pires, Edgar Aparecido Sanches, Henrique D. da Fonseca Filho
Summary: We investigated the morphological and 3D spatial properties of Cu/Ni thin films obtained by a co-deposition process. The films displayed different morphologies and rough profiles dictated by their singular directional inhomogeneities. The percolative properties of the Cu/Ni samples were similar while distinct from the Cu sample. The surface microtexture of the films showed similar spatial complexity. The sputtering process can be employed to tune the percolative properties, multifractality, and scaling symmetry of the films, inducing different vertical growth dynamics.
Article
Materials Science, Multidisciplinary
Laya Dejam, Slawomir Kulesza, Jamshid Sabbaghzadeh, Atefeh Ghaderi, Shahram Solaymani, Stefan Talu, Miroslaw Bramowicz, Mitra Amouamouha, Amir Hossein Salehi Shayegan, Amir Hossein Sari
Summary: In this study, thin films of undoped ZnO, ZnO doped with Al, ZnO doped with Cu, and co-doped ZnO with Al and Cu were deposited on quartz substrates using RF sputtering. The samples were investigated for their advanced fractal features, crystalline structure, and optical properties. The results showed that the films had different morphologies and transmission spectra, with the co-doped sample exhibiting the highest transparency in the visible region and a desirable band gap.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Laya Dejam, Atefeh Ghaderi, Shahram Solaymani, Jamshid Sabbaghzadeh, Stefan Talu, Amir Hossein Salehi Shayegan
Summary: Semiconducting metal oxide thin films of ZnO and NiO with different impurity doping were grown on a Si substrate by magnetic sputtering method. The structural characteristics were investigated using X-ray diffraction. The PL spectrum of N and Al doped ZnO samples had a peak at approximately 370 nm, close to ZnO's band gap energy, with the highest intensity observed in the AZO sample. The effect of nanoparticle size on the performance of connections was studied. Evaluation of metal oxide structures with current and voltage diagrams showed that the Si-n/NZO-p connection had the smallest ideal diode factor of 1.23, indicating the best diode behavior.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Anatomy & Morphology
Atefeh Ghaderi, Azizollah Shafiekhani, Stefan Talu, Laya Dejam, Shahram Solaymani, Ilya A. Morozov, Robert S. Matos, Nilson S. Ferreira, Amir H. Sari
Summary: We investigated the impact of annealing temperature on the structure and surface morphology of n-ZnO/p-ZnO homojunctions and n-ZnO/p-NiO heterojunctions transparent structures deposited on quartz (Q)/ITO substrates by radio frequency-sputtering. XRD analysis revealed the wurtzite hexagonal structure and (002) preferred growth direction of ZnO. Morphological analysis showed that the roughness of the film varied with increasing annealing temperature. Particle size and shape dictated the growth dynamics of p-ZnO homojunctions and p-NiO heterojunctions respectively. Fractal analysis demonstrated the similar spatial complexity and topographical uniformity of p-ZnO homojunctions, while n-ZnO/p-NiO heterojunctions had different growth dynamics. These results highlight the crucial role of annealing temperature in determining the structure, surface morphology, and growth dynamics of these transparent structures.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Nanoscience & Nanotechnology
Nastaran Bafandeh, Shahram Solaymani, Jamshid Sabbaghzadeh, Laya Dejam, Atefeh Ghaderi, Stefan Talu, Azizollah Shafiekhani, Amir Hossein Sari
Summary: In this study, the effect of different contents of multiwall carbon nanotubes (MWCNTs) on the optical and electrical properties of polyaniline was investigated. The MWCNTs/polyaniline nanocomposites were deposited on ITO coated glass as substrate using the spin-coating technique. Atomic force microscope images were used to analyze the 3-D microtexture parameters of surface texture factors and fractal dimension. Optical spectroscopy was used to study the transmission variations, optical bandgap, absorption coefficient, and skin depth of samples with different concentrations of MWCNTs. The resistance of the nanocomposite films exposed to H-2 gas was also monitored.
Review
Multidisciplinary Sciences
Ghobad Behzadi Pour, Hassan Ashourifar, Leila Fekri Aval, Shahram Solaymani
Summary: In this review, high-performance, flexible, and symmetry carbon nanotube (CNT) supercapacitors based on CNTs/graphene, CNTs/metal, and CNTs/polymer electrodes are summarized. The performance of these supercapacitors based on specific capacitance, power and energy densities, and capacitance retention is discussed to present recent developments in CNT supercapacitors. The comparison of supercapacitor nanocomposite electrodes and their results are reported for future researchers.
Article
Materials Science, Multidisciplinary
Arash Boochani, Moein Asshabi, Jabbar Khodadadi, Elmira Sartipi, Morteza Jamal, Jamshid Sabbagzadeh, Masoud Shahrokhi, Malieheh Amiri, Arash Yari, Shahram Solaymani, Amir hossein Sari, Saeid Jalali-Asadabadi
Summary: This work investigates the ground state stability of three Heuslerene Co2CrAl compounds (alpha, beta, and gamma phases) using density functional theory with different approximations. The results indicate that all three structures are stable and have different magnetic properties. The phonon branches of these compositions are positive, indicating complete dynamic stability under mechanical stresses and thermal vibrations. The electronic calculations show that Co2CrAl in bulk phase is a half-metal with 3 mu(B) magnetic moment and 100% spin polarization at the Fermi level. The electron density diagrams reveal the distribution of electron density on the surfaces of alpha and beta phases.
Article
Chemistry, Multidisciplinary
Mijaela Acosta Gentoiu, Rafael Garcia Gutierrez, Jose Joaquin Alvarado Pulido, Javier Montano Peraza, Marius Volmer, Sorin Vizireanu, Stefan Antohe, Gheorghe Dinescu, Ricardo Alberto Rodriguez-Carvajal
Summary: In this study, the differences in the magnetotransport properties of carbon nanowalls (CNWs) grown by Plasma-Enhanced CVD were investigated. The deposition temperature was found to influence the disorder microstructure of the CNWs. Lower disorder resulted in weak localization transitioning to weak antilocalization, while higher disorder led to positive Hopping mechanism and diffusion transport by graphene nanocrystallites in low field. The samples showed a similarity in isoline density of the magnetoresistance at low temperature (<50 K), which was explained in the context of magnetization and independent of the number of defects. Controllable modulation of the magnetotransport properties can be achieved by changing the microstructure of the CNWs.
APPLIED SCIENCES-BASEL
(2023)
Article
Mathematics, Interdisciplinary Applications
Erveton Pinheiro Pinto, Robert S. S. Matos, Marcelo A. A. Pires, Lucas dos Santos Lima, Stefan Talu, Henrique Duarte da Fonseca Filho, Shikhgasan Ramazanov, Shahram Solaymani, Claudio Larosa
Summary: In this study, morphological, fractal, and multifractal analysis were used to differentiate surface patterns on zirconia-based ceramics after laser treatments. Two new approaches, the Moran correlogram and the Otsu binarization algorithm, were introduced for ceramic surface analysis. The results showed that laser treatments significantly affected the surface features of the zirconia disc and reduced its isotropy. Moran's correlograms revealed a decrease in short-range correlation, while Minkowski functionals indicated a reduction in the amount of matter in the peaks. The estimated fractal dimension suggested a decrease in surface complexity, and multifractal behavior was detected in all samples, with the highest degree in the CO2 laser treated samples.
FRACTAL AND FRACTIONAL
(2023)
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)
