Showing 181 - 200 results of 224 for search '"mesoporous"', query time: 0.06s Refine Results
  1. 181

    Textural Characteristics of Resorcinol—Formaldehyde Resin and Temperature Behavior of Bound Water Affected by Co-Adsorbed Trifluoroacetic Acid or Pyridine in Weakly Polar Organic M... by Vladimir M. Gun'ko, Vladimir V. Turov, Viktor M. Bogatyrov, Jadwiga Skubiszewska-Zięba, Barbara Charmas

    Published 2014-12-01
    “…Resorcinol–formaldehyde resin (RFR) was synthesized as a porous material characterized by specific surface area of 140 m 2 /g and pore volume of 0.59 cm 3 /g with major proportions of broad mesopores and macropores. The interfacial behavior of water at low (h = 0.05 g of water/gram of dry RFR) and high (h = 2 g/g) hydration degrees depends on temperature and pore size filled by unfrozen water because its freezing-point depression increases in narrower pores. …”
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  2. 182

    Modifications on Microporosity and Physical Properties of Cement Mortar Caused by Carbonation: Comparison of Experimental Methods by Son Tung Pham

    Published 2013-01-01
    “…Conflicts in results were observed because while the pore size distributions calculated by BJH method from nitrogen adsorption provided evolution of the micro- and mesopores during carbonation, the porosity accessible to water showed changes in all three porous domains: macro-, meso- and micropores. …”
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  3. 183

    Studies of the Kinetic Characteristics of HSA Adsorption by Different Types of Activated Carbon Fibres by Eugene Eretsky

    Published 2000-06-01
    “…It was shown that an increase in the degree of ACF activation led to the development of a porous structure which exhibited increasing values of the micropore and mesopore volumes. Relationships between the structure, the physicochemical properties of the surface and the adsorption characteristics of ACF were established. …”
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  4. 184

    Structural and Oxidative Properties of Manganese Incorporated Mesostructure Silica for Methane Oxidation by Rihem Dardouri, Anis Gannouni, Mongia Saïd Zina

    Published 2019-01-01
    “…The results of this study indicate that the obtained catalysts retained their hexagonal mesopore structure after introducing Mn into MCM-41. …”
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  5. 185

    Influence of Synthesis pH on Textural Properties of Carbon Xerogels as Supports for Pt/CXs Catalysts for Direct Methanol Fuel Cells by C. Alegre, M. E. Gálvez, D. Sebastián, R. Moliner, M. J. Lázaro

    Published 2012-01-01
    “…It was observed that the more developed and mesopore-enriched porous structure of the carbon xerogel synthesized at a higher initial pH resulted in an optimal utilization of the active phase and in an enhanced and promising catalytic activity in the electrooxidation of methanol, in comparison with commercial catalysts.…”
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  6. 186

    Investigation of the Characteristic Properties of Glacial Acetic Acid-Catalyzed Carbon Xerogels and Their Electrochemical Performance for Use as Electrode Materials in Electrical D... by Nguyen Khanh Nguyen Quach, Wein-Duo Yang, Zen-Ja Chung, Hoai Lam Tran, Rui Liu

    Published 2017-01-01
    “…A resorcinol/catalyst ratio of 2 and a pyrolysis temperature at 800°C were found to be the optimal condition for the preparation of carbon xerogels with a well-balanced porosity between micro- and mesopores, high surface area (577.62 m2g−1), and large pore volume (0.97 cm3g−1), which are appropriate for use as electrode materials in an electrical double-layer capacitor. …”
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  7. 187

    Degradable hypercrosslinked porous polymer generated from aromatic polyketone by Handou Zheng, Guangshui Tu, Cheng Du, Heng Gao, Lixia Pei, Haiyang Gao

    Published 2025-02-01
    “…The hypercrosslinked structure of HCPK-X was fully characterized, and HCPK-OtBu had a mesopores structure (1.27–68.5 nm) and large surface area (S BET = 321 m2/g). …”
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  8. 188

    Compaction versus Surface Parameters of Certain Solid Catalysts by Anwar Amin, Laila I. Ali, Anwar M. Ibrahim

    Published 1997-04-01
    “…All other samples contained mainly mesopores.…”
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  9. 189

    CO2 Capture by Carbon Aerogel–Potassium Carbonate Nanocomposites by Guang Yang, Hongchao Luo, Tomonori Ohba, Hirofumi Kanoh

    Published 2016-01-01
    “…In this study, we focused on the regeneration temperature of carbon aerogel–potassium carbonate (CA–KC) nanocomposites, where KC nanocrystals were formed in the mesopores of the CAs. We observed that the nanopore size of the original CA plays an important role in decreasing the regeneration temperature and in enhancing the CO2 capture capacity. …”
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  10. 190

    Plant Resin Delivery by Nanovectors as an Emerging Approach to Boost Solubility, Permeability and Bioavailability by Eleonora Truzzi, Giulia Vanti, Lucia Grifoni, Eleonora Maretti, Eliana Leo, Anna Rita Bilia

    Published 2025-01-01
    “…Therefore, nanovectors including vesicles, solid lipid nanoparticles, micelles, nanoemulsions, microemulsions and mesoporic nanoparticles have been investigated to optimize the biopharmaceutical properties after topical or oral administration of resins or fractions from them, including essential oils or single constituents. …”
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  11. 191

    Transition Metal-Mediated Preparation of Nitrogen-Doped Porous Carbon for Advanced Zinc-Ion Hybrid Capacitors by Mingcheng Li, Zheng Liu, Dan Wu, Huihao Wu, Kuikui Xiao

    Published 2025-01-01
    “…Its abundant micro- and mesopores increase the surface area fourfold compared to non-catalyzed samples, favoring EDLC and fast electrolyte transport. …”
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  12. 192

    Investigating Multiphase Flow Phenomena in Fine-Grained Reservoir Rocks: Insights from Using Ethane Permeability Measurements over a Range of Pore Pressures by Eric Aidan Letham, Robert Marc Bustin

    Published 2018-01-01
    “…The largest effective permeability drops occur in samples with dominant pore sizes in the mesopore range. These pores are completely blocked due to capillary condensation at pore pressures near the saturated vapour pressure of ethane. …”
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  13. 193

    Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S by Fengke Wang, Chaofan Li, Weizhen Kong, Shucan Qin, Qianqian Peng, Lihua Zang, Yunqian Ma, Yi Nie, Guihuan Yan

    Published 2024-01-01
    “…The process of desulfurization includes two stages: catalytic oxidation and adsorption, which are determined by the Fe3+ in DES and the structural characteristics, such as the aggregation of mesopores, respectively. For MIL-53(Fe), FeOOH as an intermediate and Lewis acid sites also played a catalytic role. …”
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  14. 194

    Impact of Uniaxial Mechanical Perturbation on Structural Properties and Smectite Porosity Features: Ion Exchanger Efficiency and Adsorption Performance Fate by Walid Oueslati, Chadha Mejri, Abdesslem Ben Haj Amara

    Published 2022-01-01
    “…Porosity analysis shows mesopore volume growth for the stressed sample and confirms crystallite exfoliation layer trends, results of the layer cohesion damage, and subsequent constraint strength fluctuations.…”
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  15. 195

    Evolution of Pore Characteristics for Bentonite Modified by an Ionic Soil Stabilizer during Hydration Processes by Wei Huang, Zili Feng, Huanran Fu, Wei Xiang

    Published 2021-01-01
    “…Then, adsorption occurred on the basal surface of the crystal layer in the range of 0.45~0.55<RH<0.8~0.9, with water mainly adsorbed into the mesopores. With further hydration when RH>0.8~0.9, diffused double layer (DDL) water ceaselessly entered the macropores. …”
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  16. 196

    Impacts of Thermal Activation on Physical Properties of Coal Gangue: Integration of Microstructural and Leaching Data by Wangtao Fan, Yuan Chen, Runxia Zhang, Xiaoguang Chen, Jin Li, Zhaolin Gu, Jianyun Wang

    Published 2025-01-01
    “…The calcination treatment induced the reduction in macropore volume (>50 nm), and enhancement in mesopore (<5 nm) volume. Leachable Ni, Cd, Mn, Cu, Zn and Pd decreased by 99%, 67%, 86%, 40%, 99% and 93% after calcination at 800 °C, respectively. …”
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  17. 197

    Fabrication of Zn and Ti-loaded Carbon-silica Composite Derived from Gelatin Template for the Photodegradation of Methylene Blue by Maria Ulfa, Ika Uswatun Hasanah, Ida Setiarini

    Published 2024-10-01
    “…The nitrogen adsorption-desorption curves revealed both micropores and mesopores of TiO2/CSNs and ZnO/CSNs where the surface area reduced due to the blocking pore after impregnation. …”
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  18. 198

    Kinetics and Equilibrium Studies of the Adsorption of Copper(II) Ions from Industrial Wastewater Using Activated Carbons Derived from Sugarcane Bagasse by Temiloluwa E. Amoo, Kehinde O. Amoo, Opeyemi A. Adeeyo, Clement O. Ogidi

    Published 2022-01-01
    “…Both BACs mainly composed of mesopores and bonds of O-H, C-O, C=O, and C-O-C. The BET surface area of BAC-P and BAC-Zn was 427.5 and 282 m2/g before adsorption, and their isoelectric point (pHIEP) 3.70 and 5.26, respectively.…”
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  19. 199

    Effects of Thermal Treatment on Mineral Composition and Pore Structure of Coal by Bin Liu, Teng Teng, Zhenhua Jiao, Shaobo Li

    Published 2021-01-01
    “…The volume of macropore and mesopore increases slowly, and that of transition pore decreases slowly with the increasing temperature. …”
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  20. 200

    Study on Microstructure Differences of Coal Samples before and after Loading by Jiajia Liu, Yingxiang Fang, Gaini Jia, Shouqi Chen, Jianmin Hu

    Published 2020-01-01
    “…The experimental results show that the pores of coal samples are mainly micropores and small pores, and the mesopores and macropores are relatively few. The T2 spectrum area of the coal sample is significantly increased after loading, and the parallel-layer coal samples’ T2 spectrum area is 46735, which is 9112 more than the vertical layer coal samples. …”
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