Showing 6,741 - 6,758 results of 6,758 for search '"mesoporous"', query time: 0.21s Refine Results
  1. 6741

    Preparation of nano manganese oxides by H2O2 in-situ oxidation: effect of regulation mechanism on physical and chemical properties by Mingdong Li, Jiawei Wang, Dejin Fu, Bibo Gou, Xiaoliang Chen, Haifeng Wang

    Published 2021-01-01
    “…Under alkaline conditions, the main product of manganese sulfate solution oxidized by H _2 O _2 was Mn _3 O _4 spherical particles with a radius of about 50 nm, these particles had micropores or mesopores, the oxidation reaction rate was rapid, and the specific surface area and N _2 adsorption capacity changed with the change of reaction conditions.The temperature had a great influence on the micro morphology of the product.The micro morphology was slender nanorod when the temperature was 20 °C. …”
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  2. 6742

    Preparation of CoP/Co@NPC@rGO nanocomposites with an efficient bifunctional electrocatalyst for hydrogen evolution and oxygen evolution reaction by Kang HUANG, Mei-ting ZHU, Fei-peng ZHANG, Zhi-long XU, Hong-tao WANG, Kui XIAO, Jun-sheng WU

    Published 2020-01-01
    “…The Co@NPC@rGO‒800 nanocomposite exhibits a high Brunauer-Emmett-Teller (BET) surface area of 186.27 m2·g‒1, indicating that both micropores and mesopores existed. Subsequently, the electrocatalytic properties of the CoP/Co@NPC@rGO nanocomposites for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) were investigated by electrochemical measurements. …”
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  3. 6743

    Pore Structure and Its Controls of Shale in the Qingshankou Formation, Sanzhao Sag, Songliao Basin by Surong Zhang, Songtao Wu, Rukai Zhu, Jingya Zhang, Chang Liu, Tianshu Zhang, Yi Cai, Mengying Li, Ganlin Hua, Yuan Kang, Bo Wang

    Published 2023-03-01
    “…Organic matter pores (OMP) occur in primary organic matter and migrate into solid bitumen. (3) The shale pores in the Sanzhao Sag are mainly H3-type slit pores, with specific surface areas of 5.4~22.9 m<sup>2</sup>/g and pore volumes of 0.03~0.07 cm<sup>3</sup>/g. Mesopores make the largest contribution to pore volume and specific surface area. …”
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  4. 6744

    Effect of organic linkers and graphene loading on ternary metal organic framework composite for asymmetric supercapacitor application by Amir Luqman, Sanusi

    Published 2023
    “…According to the Brunauer-Emmett-Teller (BET) analysis, Co/Cu/Ni-tetra possessed a typical type IV curve, displaying a combination of micropores and mesopores in the MOF. The TGA demonstrated the degradation peaks in the MOF samples with the corresponding temperature, and Co/Cu/Ni-tetra experienced four stages of weight loss in the temperature range of 25–900 ℃ with a final residue of 36%. …”
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  5. 6745

    Pore size classification and prediction based on distribution of reservoir fluid volumes utilizing well logs and deep learning algorithm in a complex lithology by Hassan Bagheri, Reza Mohebian, Ali Moradzadeh, Behnia Azizzadeh Mehmandost Olya

    Published 2024-12-01
    “…In this study, we introduce an innovative framework that leverages nuclear magnetic resonance (NMR) log data, encompassing clay-bound water (CBW), bound volume irreducible (BVI), and free fluid volume (FFV), to determine three PSDs (micropores, mesopores, and macropores). Moreover, we establish a robust pore size classification (PSC) system utilizing ternary plots, derived from the PSDs.Within the three studied wells, NMR log data is exclusive to one well (well-A), while conventional well logs are accessible for all three wells (well-A, well-B, and well-C). …”
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  6. 6746

    Carbon based self-supported electrodes for supercapacitors and batteries by Wang, Huanhuan

    Published 2019
    “…On the other hand, unlike carbon additives, tin sulfide nanoflakes exhibit high capacity due to greatly decreased particle size and introduced mesopores, nanoclusters, and exposed edges. Benefiting from effective nanostructure engineering, good electrochemical performance has been demonstrated and a Na+ intercalation mechanism is unraveled. …”
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  7. 6747

    Combined steam and CO2 reforming of methane over carbon-resistant boron-promoted Ni/SBA-15 catalysts for syngas production by Tan, Ji Siang

    Published 2018
    “…An inevitable decline in BET surface area and average NiO crystallite size with boron promotion from 1% to 5%B loading could be due to the agglomeration of B2O3 particles and deboration reaction during calcination and hence blocking mesopores of SBA-15 support at elevated B composition. …”
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  8. 6748

    Treatment of mine water containing ammonia nitrogen by sodium hexametaphosphate modified zeolite by Liping ZHANG, Xiang HU, Weiwei WANG, Wenbo LEI, Huitong LI, Huaran SUN, Yongqi ZHAN, Zeyu LIAN

    Published 2024-12-01
    “…Scanning electron microscopy and surface area measurements revealed that upon modification, the zeolite exhibited enlarged pores, a smoother and more loosely structured surface, increased specific surface area, decreased micropore volume, and an augmentation in mesopore, macropore, and average pore diameter. Analyses using X-ray diffraction and Fourier-transform infrared spectroscopy indicated no significant alteration in the fundamental framework of the modified zeolite. …”
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  9. 6749

    SINTESIS SOL-GEL TiO2 BERDOPING NITROGEN DAN PREPARASI IN SITU KOMPLEKS RUTENIUM PADA TiO2 BERDOPING NITROGEN by , Cahyorini Kusumawardani, S.Si.,M.Si., , Prof. Dr. Narsito

    Published 2013
    “…In this research, the synthesis of anatase type N-doped TiO2 mesopore was done through one step sol gel technique, where the pore formation process and nitrogen doping process were done in one step. …”
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  10. 6750

    Layer-by-layer assembled conductive films based on poly(3,4-ethylenedioxythiophene) and polypyrrole composites for hybrid supercapacitors by Kulandaivalu, Shalini

    Published 2019
    “…Subsequently, by substituting the second layer with MWCNTs/rGO/NCC, the film with mesopores (0.558 cm3 g-1) and specific surface area of 106.02 m2 g-1 exhibits a high specific capacitance of 882.2 F g-1 at 10 mV s-1, remarkable cycling stability of ~90% over 10000 cycles and a high specific energy of 44.6 Wh kg-1 with a high specific power of 2889.9 W kg-1. …”
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  11. 6751

    Catalytic Hydrogenation Of Co2 Over Cuznosba-15 Catalysts For Production Of Methanol by Asri, Sahrizul Aman

    Published 2016
    “…The prepared SBA-15 having fibre like morphology with BET surface area, micropore area, mesopore area and pore volume of 716.98 m2/g, 188.32 m2/g, 528 m2/g and 0.70 cm3/g, respectively. …”
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  12. 6752

    Effects of innovative long-term soil and crop management on topsoil properties of a Mediterranean soil based on detailed water retention curves by A. Aldaz-Lusarreta, A. Aldaz-Lusarreta, R. Giménez, R. Giménez, M. A. Campo-Bescós, M. A. Campo-Bescós, L. M. Arregui, L. M. Arregui, I. Virto, I. Virto

    Published 2022-10-01
    “…There was an overabundance of macropores under CM, while the amount of mesopores (available water) and micropores were similar in both treatments. …”
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  13. 6753

    Electromagnetic wave absorption of coconut fiber-derived porous activated carbon by Jemilat Yetunde Yusuf, Hassan Soleimani, Noorhana Yahya, Yekinni Kolawole Sanusi, Gregory Kozlowski, Andreas Öchsner, Lawal Lanre Adebayo, Fatai Adisa Wahaab, Surajudeen Sikiru, Bashiru Bolaji Balogun

    Published 2022-09-01
    “…Using the BET method, the activated carbon prepared at 750 °C displayed a high specific surface area of 602.9 m2 g−1 and an average pore size of 6 nm, which confirms the extant of mesopores. The EMWA was studied using COMSOL Multiphysics software based on the finite element method. …”
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  14. 6754

    Syngas production from methane dry reforming over CeO2 promoted Ni/CaFe2O4 catalyst by Hossain, Mohammed Anwar

    Published 2019
    “…The catalysts characterization shows that both the promoted and the unpromoted catalysts with pore diameter of 3.2 nm and 3.08 nm, respectively possessed mesopores (pore diameter > 2 nm) suitable for catalytic reaction such methane dry reforming. …”
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  15. 6755

    Synthesis, Characterization And Co2 Adsorption Of Caco3, Ca(Oh)2 And Inert Materials Incorporated Ca(Oh)2 by Hlaing, Nwe Ni

    Published 2016
    “…The higher adsorption capacity and better cyclic stability during 10 cycles are attributed to the high BET surface area (155.80 m2/g), a wide range of micro/mesopore size distribution (1.7 nm - 30 nm) and the presence of high temperature sintering resistance Ce2Zr3O10 compound.…”
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  16. 6756

    Key experimental technologies and their development directions for the exploration and production of deep coalbed methane by Xia YAN, Fengyin XU, Xianyue XIONG, Feng WANG, Chunhu LI, Jiyuan ZHANG, Borui XU, Qianhui CHENG, Xiong HU, Xueguang ZHU, Wei LIANG, Pu YUAN, Yanqing FENG, Zhenji WEI

    Published 2025-01-01
    “…ProspectsThis study posits seven development directions for deep CBM production and in-situ coal conversion experiments: (1) Clear, direct observation techniques for micropores (< 2 nm) in deep coal seams with ultra-low porosity and permeability, full-scale pore size splicing technology for multiscale pore structure characterized by abundant micropores, a few mesopores, and many macropores, and assessment techniques for pore-fracture connectivity. (2) Isothermal adsorption test technologies for raw coals considering the effects of deep coal seam wettability, fracturing fluid invasion, and high total dissolved solids (TDS) under high-temperature, high-pressure in-situ conditions; (3) Sealed coring devices and in-situ pressure-retaining coring technologies featuring high pressure retaining success rates, heat preservation rates, and traceable gas volume. (4) Nanoscience-based assessment technologies for gas and water occurrence in micropores in deep coal seams under high-temperature and high-pressure multi-field coupling, and experimental technologies for desorption, diffusion, and seepage across nano-micro-millimeter scales. (5) Techniques for developing and testing multifunctional mechanical experiment equipment applicable to in-situ conditions of deep coal seams featuring high stress, low modulus of elasticity, and high Poisson's ratio. (6) Experimental techniques for the purpose of enhancing CBM recovery of deep coal seams, including reservoir stimulation (microwaves, laser, and electric heating), stimulation for permeability enhancement (electromagnetic pulses, pulsed ultrasonic waves, and controlled shockwaves), displacement via CO2 injection, and mechanical pulsation with supercritical CO2. (7) Experimental techniques for in-situ coal conversion and utilization, including pyrolysis, underground coal gasification (UCG), geothermal utilization, and CO2 geological storage. …”
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  17. 6757

    Advanced gas separation via combined use of carbon nanomaterials and microporous materials by Li, Wen

    Published 2019
    “…It is well-known that zeolite 5A is facile to tune the pore structure, leading to a hierarchical structure with both mesopores and micropores. Also, Matrimid® has been applied as the matrix by taking its cheap cost, strong chemical resistance as well as high solubility towards organic solvents into consideration. …”
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  18. 6758

    Treatment Of Recycled Paper Mill Effluent Using Modified Anaerobic Inclining-Baffled Reactor by Zwain, Haider Mohammed Naima

    Published 2016
    “…The higher adsorption capacity and better cyclic stability during 10 cycles are attributed to the high BET surface area (155.80 m2/g), a wide range of micro/mesopore size distribution (1.7 nm - 30 nm) and the presence of high temperature sintering resistance Ce2Zr3O10 compound.…”
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    Thesis