-
7601
Influence of Different Activators on the Structure and Properties of Activated Carbon Based on Bamboo Fiber
Published 2022-12-01“…In terms of the pore structure, BFAC-H<sub>3</sub>PO<sub>4</sub> and BFAC-H<sub>4</sub>P<sub>2</sub>O<sub>7</sub> are mainly mesopores and BFAC-ZnCl<sub>2</sub> and BFAC-(NH<sub>4</sub>)<sub>2</sub>HPO<sub>4</sub> are mainly micropores. …”
Get full text
Article -
7602
The Chemical Compatibility of Sand–Attapulgite Cut-Off Walls for Landfills
Published 2023-08-01“…An increase in Ca<sup>2+</sup> concentration decreased the bound water content of the cut-off wall while the CaCl<sub>2</sub> solution increased macropore and mesopore volume and decreased small pore volume in the sand–attapulgite cut-off wall. …”
Get full text
Article -
7603
Study on Analytical Method for Pore Size Distribution of the Lower Cambrian Niutitang Formation Shale in Southeastern Chongqing
Published 2018-05-01“…The hysteresis loops belong to the H4 type in the IUPAC classification, which corresponds to the narrow slit-like pores, indicating that there are a large number of micropores in the shale, in addition to the mesopores with a peak pore size concentrating at 3.5-4.5 nm and a certain number of macropores. …”
Get full text
Article -
7604
Attenuation of nitrate from aqueous solution using raw and surface modified biosorbents from Adansonia digitata fruit pericarp
Published 2022-08-01“…The adsorbents under investigation exhibit a heterogeneous pore structure with a considerable number of mesopores, with surface areas of 361.527 and 379.877 m2 per gram for RADFP and SMADFP, respectively. …”
Get full text
Article -
7605
Effect of Pressure Treatment on the Specific Surface Area in Kaolin Group Minerals
Published 2019-10-01“…As the treatment pressure increased, kaolinite showed an increase in the adsorption behavior from nonpores to mesopores, whereas halloysite responded in an opposite manner to show a decrease in its adsorption capability. …”
Get full text
Article -
7606
CO<sub>2</sub> Adsorption Behaviors of Biomass-Based Activated Carbons Prepared by a Microwave/Steam Activation Technique for Molecular Sieve
Published 2023-08-01“…At atmospheric pressure, a significant dependence on micropores with diameters less than 0.8 nm was observed, whereas, at high pressure, the micropores and mesopores in the range of 1.6–2.4 nm exhibited a significant dependence. …”
Get full text
Article -
7607
Nitrogen adsorption data, FIB-SEM tomography and TEM micrographs of neutron-irradiated superfine grain graphite
Published 2018-12-01“…This collection of data is useful for characterization of the effects of high fluence neutron irradiation in nuclear graphite as described in the associated manuscript, “Mesopores development in superfine grain graphite neutron-irradiated at high fluence” (Contescu et al., 2019). …”
Get full text
Article -
7608
Experimental Investigation on the Characteristic Mobilization and Remaining Oil Distribution under CO<sub>2</sub> Huff-n-Puff of Chang 7 Continental Shale Oil
Published 2021-05-01“…In the process of huff-n-puff, CO<sub>2</sub> flowed into macropores, mesopores, and smallpores under the pressure differential effect, but a small amount of CO<sub>2</sub> slowly diffused into micropores, resulting in the ORF of the former with more free oil being higher and the ORF of micropores with more adsorbed oil being lower. …”
Get full text
Article -
7609
Mechanical characteristics and pore evolution of red sandstone under ultrasonic high-frequency vibration excitation
Published 2021-05-01“…The generation of new micropores is observed in the T2 spectrum, and the maximum increase in the dimensions of micropores and mesopores at the two peaks is 58.7% and 4.67%, respectively. …”
Get full text
Article -
7610
Enhanced Activity of Hierarchical Nanostructural Birnessite-MnO<sub>2</sub>-Based Materials Deposited onto Nickel Foam for Efficient Supercapacitor Electrodes
Published 2020-09-01“…For the MnO<sub>2</sub>/rGO-MWCNT material in particular, the addition of MWCNT and rGO enhanced the superb distribution of micropores, mesopores and macropores and greatly improved the electrochemical performance. …”
Get full text
Article -
7611
Functionalized covalent triazine frameworks as promising platforms for environmental remediation: A review
Published 2022-06-01“…Such features also endow CTFs with unique properties, including optional building blocks and synthetic methods, increased specific surface area, considerable pore volume, accessible micro-and/or mesopores in their structures, superior chemical/thermal stability, and heteroatom effect. …”
Get full text
Article -
7612
Qualitative–quantitative multiscale pore characteristics of black shale from the Upper Ordovician and Lower Silurian black shale in the Southern Sichuan Basin, China
Published 2022-09-01“…The NMR results show that with increasing TOC, the left peak T2 relaxation times move leftwards, meaning that organic matter pores have a larger pore size than matrix pores at the mesopore scale. 3) CT data identify lamellation fractures and bed-cutting fractures, and their development is controlled by mineral type and content, TOC and laminae density. 4) The determination of segmentation thresholds in CT and transverse surface relaxivity in NMR seriously affects the accuracy of the results.…”
Get full text
Article -
7613
Reservoir Characteristics and Gas Content of Black Shale of Wufeng-Longmaxi Formation in Qianjiang Area, Southeast Chongqing, China
Published 2023-01-01“…The pore volume of nanopores is 0.009897-0.017177 cm3/g (average=0.01304 cm3/g), and the specific surface area ranges from 12.1 m2/g to 35.1 m2/g (average=20.47 m2/g). Micropores and mesopores are the main pore sizes for the development of organic pores. …”
Get full text
Article -
7614
Complexity and Heterogeneity Evaluation of Pore Structures in the Deep Marine Shale Reservoirs of the Longmaxi Formation, China
Published 2023-08-01“…Heterogeneity is more pronounced in the deep marine shale than in the medium and shallow shale formations. OM mesopores significantly influence the overall heterogeneity of the shale pore system. …”
Get full text
Article -
7615
Spontaneous imbibition characteristics of carbon nanofluids in carbonate reservoirs
Published 2021-11-01“…Unlike CND, the efficiency of GS8 decreased in the mesopores and more so in the micropores. Rock–oil–brine surface contact angle and oil–brine interfacial tension measurements supported the imbibition test results and helped interpret the recovery mechanism. …”
Get full text
Article -
7616
Quantitative characterization of organic and inorganic pores in shale based on FIB-SEM
Published 2022-09-01“…Statistical analysis of the pore network model indicated that the studied shale samples considerably included mesopore (size of 2–50 nm) which accounted for 61.1%, but their contribution to the total pore volume was small (4.2%). …”
Get full text
Article -
7617
Cotton Fiber and Carbon Materials Filters for Efficient Wastewater Purification
Published 2020-12-01“…Experimental results indicated that thermal treatment of CFs resulted in increased numbers of micropores and mesopores, indicating a high sorption capacity for petroleum products (PPs) in wastewater (A = 11.5 g/g) with an efficiency score of 90%. …”
Get full text
Article -
7618
Characterization of Various Kinds, Thickness and Bentonite Sand Ratio as Hardplain Materials: a Basic Concept for Coastal Sandy Land Management
Published 2009-05-01“…Bentonite sand mixture 15 and 20 percent produced bentonite sand agregate that had mesopores by which allowing the drainage and available soil water so that those had water permeability 13.7 dan 10.3 mm day-1 respectively. …”
Get full text
Article -
7619
Thermodynamics of Adsorbed Methane Storage Systems Based on Peat-Derived Activated Carbons
Published 2020-07-01“…AC-6 displays a higher micropore volume (0.60 cm<sup>3</sup>/g), specific BET surface (1334 m<sup>2</sup>/g), and a lower fraction of mesopores calculated from the benzene vapor adsorption/desorption isotherms at 293 K. …”
Get full text
Article -
7620
Effect of drying-wetting cycles on pore characteristics and mechanical properties of enzyme-induced carbonate precipitation-reinforced sea sand
Published 2024-01-01“…Results showed that the UCS of EICP-treated specimens decreases by 63.7% after 15 D-W cycles. The proportion of mesopores gradually decreases whereas the proportion of macropores increases due to the exfoliated calcium carbonate with increasing number of D-W cycles. …”
Get full text
Article