Showing 401 - 420 results of 1,471 for search 'diffusion composition', query time: 0.13s Refine Results
  1. 401

    Preparation of PET matrix gradient composite fiber membrane for coal mine and Study on the dust filtration-moisture permeability by Gang ZHOU, Zhuo XU, Liwei JIANG, Guanshuang CHEN, Yunlong MA, Rulin LIU, Yongmei WANG

    Published 2025-02-01
    “…In this study, using PET as substrate, hydroxylated graphene was added to enhance diffusion and electrostatic adsorption effects to capture dust. …”
    Get full text
    Article
  2. 402
  3. 403

    Oxygen diffusion and surface exchange kinetics for the mixed-conducting oxide La0.6Sr0.4Co0.8Fe0.2O3-δ by Natalia M. Porotnikova, Ekaterina P. Antonova, Anna V. Khodimchuk, Eugene S. Tropin, Andrey S. Farlenkov, Maxim V. Ananyev

    Published 2018-12-01
    “…The values of interphase exchange rate and oxygen diffusion coefficient were determined. The effective activation energies for oxygen exchange and diffusion processes as well as the exponents in the dependence of these values versus oxygen pressure in the double logarithmic coordinates were calculated. …”
    Get full text
    Article
  4. 404

    Band-Gap Change and Photocatalytic Activity of Silica/Titania Composites Associated with Incorporation of CuO and NiO by M. A. Nazarkovsky, V. M. Gun'ko, G. Wójcik, B. Czech, A. Sobieszek, J. Skubiszewska-Zięba, W. Janusz, E. Skwarek

    Published 2014-11-01
    “…According to the XPS data, the doping oxides are completely absent at a composite surface. All the composites are shown to be more effective photocatalysts than titania Degussa P25.…”
    Get full text
    Article
  5. 405

    Influence of high-speed gas flow on the tensile strength of 2.5D C/SiC composites by Hailang Ge, Lu Zhang, Yuchen Yang, Sheng Zhang, Fang Wang, Xiguang Gao, Yingdong Song

    Published 2025-05-01
    “…The tensile strength and tensile modulus of 2.5D C/SiC composites were reduced.…”
    Get full text
    Article
  6. 406

    Synthesis and Application of Fe-Doped TiO2-Halloysite Nanotubes Composite and Their Potential Application in Water Treatment by Emmanuel Nyankson, Benjamin Agyei-Tuffour, Jonas Adjasoo, Annan Ebenezer, David Dodoo-Arhin, Abu Yaya, Bismark Mensah, Johnson Kwame Efavi

    Published 2019-01-01
    “…The photocatalyst-adsorbent composite (TiO2-Fe-HNTs) was synthesized by the hydrothermal method and characterized by X-ray diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy, scanning electron microscopy-energy dispersive X-ray spectroscopy, and diffuse reflectance spectroscopy. …”
    Get full text
    Article
  7. 407

    Preparation and Properties of a Flexible Al2O3/Al/Al2O3 Composite by Yigang Tong, Zhibin Zhou, Hui Cai, Xueliang Wang, Yaping Wang

    Published 2018-01-01
    “…The well-adhered layers of the sandwich structure can also prevent the fracture of the MAO coating. The thermal diffusivity of the composite is between that of aluminum and Al2O3 and the specific electrical resistance is 45.4% of that of Al2O3 under 50 V. …”
    Get full text
    Article
  8. 408

    Visible Light-Driven Mn-MoS2/rGO Composite Photocatalysts for the Photocatalytic Degradation of Rhodamine B by Thi Thuy Trang Phan, Thanh Tam Truong, Ha Tran Huu, Le Tuan Nguyen, Van Thang Nguyen, Hong Lien Nguyen, Vien Vo

    Published 2020-01-01
    “…The samples were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron paramagnetic resonance spectroscopy (EPR), UV-visible diffuse reflectance spectroscopy (UV-Vis DRS), and X-ray photoelectron spectroscopy (XPS), which indicates the composites containing nanosheets of Mn-MoS2 and rGO components. …”
    Get full text
    Article
  9. 409
  10. 410

    Tailored pc@zro₂@cellulose fiber composites as versatile materials for photocatalytic metal ion reduction and microbial deactivation by Reem. Mohammed, Shimaa M. Abdel-Moniem, Nabila S. Ammar, Mohamed A. El-Liethy, Hanan S. Ibrahim, Mohamed Eid M. Ali

    Published 2025-07-01
    “…This study investigates novel fixed bed photocatalysts composed of ZrO2@cellulose fibers, combined with various photocatalytic materials (PCs), including ZnO, V2O5, Bi2S3, MoS2, and PANI, for the reduction of heavy metal ions and microbial deactivation in water. The composite materials were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), N2 adsorption/desorption isotherms, and diffuse reflectance spectroscopy (DRS). …”
    Get full text
    Article
  11. 411
  12. 412

    Impact of Supercritical Carbon Dioxide on Pore Structure and Gas Transport in Bituminous Coal: An Integrated Experiment and Simulation by Kui Dong, Zhiyu Niu, Shaoqi Kong, Bingyi Jia

    Published 2025-03-01
    “…The injection of CO<sub>2</sub> into coal reservoirs occurs in its supercritical state (ScCO<sub>2</sub>), which significantly alters the pore structure and chemical composition of coal, thereby influencing the adsorption and diffusion behavior of methane (CH<sub>4</sub>). …”
    Get full text
    Article
  13. 413

    Study on Phase Transition Mechanism of Polymer Composite Cold Thermal Energy Storage Agent Based on Molecular Dynamics Simulation by Chen Youliang, Sheng Wei, Wang Ruirui, Li Xueli, Hao Xiaoru, Zheng Haikun

    Published 2022-01-01
    “…Composite phase-change cold thermal energy storage materials have attracted significant attention in recent years; however, studies on their microscopic phase-change mechanism have garnered insignificant interest. …”
    Get full text
    Article
  14. 414

    Molecular dynamics simulation of calcium carbonate nano filled PLA/PPC composites: interfacial properties and water vapor barrier by Yingjie Ding, Yong Xin

    Published 2025-05-01
    “…The analysis of the water adsorption sites on the composites, the energy distribution, and the mean square displacements (MSD) of water in the different samples, as well as the diffusion coefficients, showed that the filler with 3 wt% of CaCO₃ had a better dispersibility in the matrix, the free volume of the system was reduced, and the diffusion channel of water vapour was widened, which led to promising success in the field of biodegradable membranes for food packaging or waterproofing for agriculture. …”
    Get full text
    Article
  15. 415

    Effects of the amount and size of hexagonal boron nitride on the radiation resistance of silicone rubber by WU Zhihao, LI Yifan, SHEN Hang, LIN Mingzhang

    Published 2024-12-01
    “…In addition, gas chromatography analysis of the radiolytic gas (hydrogen) yield and oxygen consumption of the composites and free-radical-scavenging experiments revealed that the addition of h-BN reduced the diffusion rate of O2 in SR and enhanced the radiation resistance of the composites.…”
    Get full text
    Article
  16. 416

    Study of the effect of zinc oxide on the antifungal action of the polymer blend (unsaturated polyester and natural rubber) for industrial applications by R. A. Nassif, A. M. Haleem, R. H. Hilal, A. A. Nsaif

    Published 2025-03-01
    “…The X-ray diffraction analyses and water diffusion coefficients were examined. The diffusion coefficient of the composite material with a concentration of 2 % had the highest value, after which the values began to fall, while the increase was linear at less than this concentration. …”
    Get full text
    Article
  17. 417

    Formation mechanism of porous hollow SnO2 nanofibers prepared by one-step electrospinning by Q. F. Wei, X. Xia, X. J. Dong, Y. B. Cai, K. Y. Lu

    Published 2012-02-01
    “…SnO2 hollow nanofibers were fabricated by directly annealing electrospun polyvinylpyrrolidone (PVP)/Sn precursor composite nanofibers. In this approach, an appropriate proportion of PVP/Sn precursor with co-solvents established a system to form core/shell PVP/Sn precursor structure, and then PVP was decomposed quickly which acted as sacrificial template to keep fibrous structure and there existed a Sn precursor/SnO2 concentration gradient to form hollow SnO2 nanofibers due to the Kirkendall effect and surface diffusion during the calcination process. …”
    Get full text
    Article
  18. 418

    Tailoring Bi to boost CuAgBi2I8 solar cells by Erchuang Fan, Manying Liu, Yange Zhang, Dandan Zhao, Yan Lei, Chaoliang Zhao, Peng Zhang, Erjun Zhou, Zhi Zheng

    Published 2025-06-01
    “…This work provides a novel idea and approach to governing the gas–solid element diffusion and reaction for high‐quality CABI and related halide perovskite films.…”
    Get full text
    Article
  19. 419

    Unveiling the chemical composition, antioxidant and antibacterial properties, and mechanistic insights of Convolvulus arvensis extract through molecular docking simulations by Fatemeh Mosallaie, Motahare Pirnia, Zahra Dehghan, Fereshteh Falah, Reihaneh Sabbaghzadeh, Behrooz Alizadeh Behbahani, Fahimeh Lavi Arab, Farideh Tabatabaei Yazdi, Alireza Vasiee

    Published 2024-12-01
    “…Antimicrobial activity was determined using minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), well diffusion agar, and disk diffusion agar assays. The antioxidant properties were assessed through ferric reducing antioxidant power (FRAP) and DPPH free radical scavenging assays. …”
    Get full text
    Article
  20. 420

    An Experimental Study on the Hardness, Inter Laminar Shear Strength, and Water Absorption Behavior of Habeshian Banana Fiber Reinforced Composites by Kiran Shahapurkar, Gezahgn Gebremaryam, Gangadhar Kanaginahal, S. Ramesh, Nik-Nazri Nik-Ghazali, Venkatesh Chenrayan, Manzoore Elahi M Soudagar, Yasser Fouad, M.A. Kalam

    Published 2024-12-01
    “…The random orientation of the fiber structure in short fiber composites results in the largest moisture absorption; this behavior is further supported by elucidating the kinetic parameters and diffusion coefficient parameters. …”
    Get full text
    Article