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281
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...
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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282
Modifications on Microporosity and Physical Properties of Cement Mortar Caused by Carbonation: Comparison of Experimental Methods
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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283
Studies of the Kinetic Characteristics of HSA Adsorption by Different Types of Activated Carbon Fibres
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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284
MCM-41 Porosity: Are Surface Corrugations Micropores?
Published 2011-06-01“…Since the discovery of MCM-41, the interpretation of its structure and porous texture has evolved from a simple model of straight parallel mesopores to a much more complex model with a rough surface. …”
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285
Air Oxidation of Carbon Spheres. I. Master Curves of Pore Parameters
Published 2005-12-01“…Pore development was assumed to proceed principally via the enlargement and collapse of micropores through mesopores to macropores.…”
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286
Structural and Oxidative Properties of Manganese Incorporated Mesostructure Silica for Methane Oxidation
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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287
Influence of Synthesis pH on Textural Properties of Carbon Xerogels as Supports for Pt/CXs Catalysts for Direct Methanol Fuel Cells
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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288
Monte Carlo simulation of ammonia adsorption in nanoporous carbon: Optimal pore sizes for adsorption refrigeration applications
Published 2025-01-01“…It is found that nanoporous carbon with very small pore sizes is not a good adsorbent for thermally efficient adsorption refrigeration systems. However, carbon mesopores can provide higher refrigeration capacities and coefficients of performance together with lower desorption temperatures, thus offering the possibility of relying on low-grade thermal waste heat to drive the refrigeration process.…”
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289
Investigation of the Characteristic Properties of Glacial Acetic Acid-Catalyzed Carbon Xerogels and Their Electrochemical Performance for Use as Electrode Materials in Electrical D...
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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290
Degradable hypercrosslinked porous polymer generated from aromatic polyketone
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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291
Compaction versus Surface Parameters of Certain Solid Catalysts
Published 1997-04-01“…All other samples contained mainly mesopores.…”
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292
CO2 Capture by Carbon Aerogel–Potassium Carbonate Nanocomposites
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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293
Plant Resin Delivery by Nanovectors as an Emerging Approach to Boost Solubility, Permeability and Bioavailability
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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294
Transition Metal-Mediated Preparation of Nitrogen-Doped Porous Carbon for Advanced Zinc-Ion Hybrid Capacitors
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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295
Investigating Multiphase Flow Phenomena in Fine-Grained Reservoir Rocks: Insights from Using Ethane Permeability Measurements over a Range of Pore Pressures
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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296
Flexible Dual Fe-based Catalyst: MIL-53(Fe) Loaded with Deep Eutectic Solvent for Discontinuous Selective Oxidation of H2S
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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297
Preparation of Activated Carbons from Sawdust by Chemical Activation
Published 2008-09-01“…The experimental results show that, under the experimental conditions studied, an activated carbon containing well-developed micropores and mesopores exhibiting improved nitrogen adsorption properties can be obtained via a H 3 PO 4 activation process under the optimum operation conditions, viz. activated with an impregnation ratio of 1.0–1.5H 3 PO 4 /sawdust at 500°C for 60–90 min.…”
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298
Aging damage characteristics of acid‐etched sandstone samples
Published 2024-11-01“…The etched surface appears “flocculent” and yellow sediment is produced. (2) The pores in sandstone samples are mainly micro‐ and mesopores, and the total porosity increases exponentially with the duration of acid etching. …”
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299
Evolution of Pore Characteristics for Bentonite Modified by an Ionic Soil Stabilizer during Hydration Processes
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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300
Impacts of Thermal Activation on Physical Properties of Coal Gangue: Integration of Microstructural and Leaching Data
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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