Article
Materials Science, Multidisciplinary
Bhaskar Bhaduri
Summary: In this study, copper nanoparticles grown carbon nanofibers (Cu-CNFs) were synthesized on graphite powder using catalytic chemical vapor deposition (CVD) method with acetylene as the carbon source. The CNFs were heat treated under inert atmosphere, and the analysis showed that the synthesis followed tip growth mechanism, with the material being of high purity confirmed by EDS and XPS analysis.
Article
Materials Science, Multidisciplinary
Christian Saringer, Michael Tkadletz, Josef Thurner, Christoph Czettl, Nina Schalk
Summary: Using thermally activated chemical vapor deposition (CVD), Ti1-xAlxN coatings with Al contents up to x > 0.8 can be synthesized due to their high global Al content and self organized nanolamellar microstructure. However, the formation mechanism of the microstructure and the resulting coating properties are not fully understood. The study investigates the effects of deposition temperature, pressure, and gas feed rotation speed on the microstructure and mechanical properties.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Review
Chemistry, Physical
Huaning Jiang, Peng Zhang, Xingguo Wang, Yongji Gong
Summary: The development of magnetic 2D materials using CVD has attracted significant attention, as it offers a robust method for synthesizing ultrathin magnetic nanosheets with fascinating properties. Recent researches have focused on the fabrication methods and the manipulation of magnetic properties in 2D materials through heteroatoms doping and phase transition induced during CVD growth.
Article
Nanoscience & Nanotechnology
Ali Mazaheri, Mohammad Javadi, Yaser Abdi
Summary: Use of diborane pyrolysis as a boron source enabled growth of atomic-thickness borophene sheets through chemical vapor deposition. Systematic studies on temperature, deposition rate, and pressure effects on 2D boron sheets growth were conducted, along with detailed analyses on morphology and crystalline phase. CVD-grown borophene layers exhibited an average thickness of 4.2 angstrom, chi(3) crystalline structure, and metallic conductivity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Steven Rhodes, Warner Cribb, Valentin Taufour, Dwight Patterson, Dereje Seifu, Saeed Kamali, Suman Neupane
Summary: Alumina is an essential ceramic insulator, while carbon nanotubes (CNTs) have intriguing mechanical, thermal, electrical, and magnetic properties. We report the successful synthesis of CNTs/Al2O3 nanocomposites using the CVD process with iron as a catalyst. Experimental results show that the composites contain CNTs with an average diameter of 40 nm distributed homogenously within the alumina matrix, resulting in a dramatic enhancement of ferromagnetic properties.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Multidisciplinary
A. Lazzarini, R. Colaiezzi, M. Passacantando, F. D'Orazio, L. Arrizza, F. Ferella, M. Crucianelli
Summary: The team synthesized silica-coated iron oxide magnetic nanoparticles as the starting core for easily-recoverable heterogeneous catalysts supports. Various techniques were employed to analyze the features of the synthesized materials, and a oxidation reaction was used to confirm the effectiveness of the silica shield.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
C. Calvo-Mola, V Torres-Costa, Y. Gonzalez, A. Ruediger, M. Sanchez, G. Santana, G. Contreras-Puente, C. de Melo, J. Ghanbaja, D. Horwat, O. de Melo
Summary: In this study, a novel system for hot wall evaporation of MoO3 was developed and characterized in a horizontal furnace under low vacuum atmosphere. Pure MoO3 material with a strong preferential orientation was obtained, and its properties were analyzed using electron microscopy, micro-Raman spectroscopy, and x-ray diffraction. The relationship between photoluminescence and Raman spectra with temperature was investigated. The temperature coefficients of the vibrational modes were reported and compared, and their relation with the thermal expansion coefficient was discussed. Additionally, the temperature dependence of photoluminescent contributions for MoO3 was studied, revealing an anomalous increase in intensity followed by normal quenching at high temperatures. The Shibata model was used to explain this anomalous effect.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Anushka Bansal, Xiaotian Zhang, Joan M. Redwing
Summary: The study investigates the effects of growth conditions and gas-phase chemistry on the growth rate of hBN in CVD. It is found that using flow modulation epitaxy method can significantly increase the hBN growth rate and exhibits a strong positive dependence on substrate temperature.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Materials Science, Ceramics
H. Plaisantin, J. Danet, I. Berdoyes, G. Laduye, A. Desenfant, G. Chollon
Summary: Chemical vapor deposited SiC coatings were examined using X-ray diffraction, Raman microspectroscopy, and transmission electron microscopy. Different (micro)structures were observed based on specific preparation conditions, showing varying levels of disorder. The coatings exhibited a columnar morphology with a preferred orientation and a faulted cubic structure.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Jia Lin, Hua Jin, Xiaohong Ge, Yihang Yang, Guimei Huang, Jinhuo Wang, Fenqiang Li, Hui Li, Shuai Wang
Summary: CNTs were successfully synthesized on refractory metal diborides (HfB2, ZrB2, and TiB2) via CVD with Ni as the catalyst at about 850-1200 degrees C. The obtained powders were densified via SPS at 1400-1700 degrees C to obtain a composite. The optimal strength and toughness were found for TiB2-Ni-CNT composites. Uniform dispersion of CNTs in the boride matrix contributed to further enhancement of mechanical properties.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Kishan Thodkar, Milivoj Plodinec, Fabian Gramm, Karsten Kunze
Summary: Quantifying the intrinsic properties of 2D materials is crucial for their applications. This study demonstrates a method for preparing suspended chemical vapor deposition (CVD) graphene films directly on their growth substrates, allowing for the quantification of intrinsic strain and doping. The results show consistent patterns of compressive strain in the films and highlight the importance of studying materials directly on their growth substrates to avoid transfer-induced alterations.
Article
Chemistry, Physical
Kaicheng Jia, Ziteng Ma, Wendong Wang, Yongliang Wen, Huanxin Li, Yeshu Zhu, Jiawei Yang, Yuqing Song, Jiaxin Shao, Xiaoting Liu, Qi Lu, Yixuan Zhao, Jianbo Yin, Luzhao Sun, Hailin Peng, Jincan Zhang, Li Lin, Zhongfan Liu
Summary: Chemical vapor deposition is a promising method for controlled growth of high-quality graphene films. Cold-wall CVD system has the potential for industrial-scale production, but the quality of graphene is still limited. This study presents an efficient method for batch synthesis of high-quality graphene films with millimeter-sized domains.
Article
Engineering, Chemical
Shih-Ming He, Zhi-Long Lin, Wei-Jie Lin, Kai-Xiang Xu, Yi-Hsien Chen, Jyh-Chen Chen, Ching-Yuan Su
Summary: A novel method for producing high-yield and uniform monolayer graphene film using Cu helical stacking and porous carbon cloth as a mediator is proposed. The optimized graphene exhibits high crystallinity and electrical conductivity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Nanoscience & Nanotechnology
Kishan Thodkar, Fabian Gramm
Summary: The high field-effect mobility and two-dimensional nature of graphene films make it a promising material for developing sensitive sensors with low power consumption. The chemical vapor deposition process allows scalable production of high-quality graphene films. This study presents a simplified fabrication process to develop suspended chemical vapor deposition graphene devices with enhanced field-effect mobility operating at room temperature.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Byeong-Kwan Song, Hwan-Young Kim, Kun-Su Kim, Jeong-Woo Yang, Nong-Moon Hwang
Summary: The growth rate of diamond in HFCVD is influenced by methane concentration, with high levels potentially leading to the formation of non-diamond phases that are etched faster by atomic hydrogen, resulting in a decrease in growth rate. The presence of graphite coating on the hot filament also affects electron emission, with lower electron emission at higher methane concentrations attributed to the formation of non-diamond phases, leading to slower growth rates.
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)