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- W4296555342 abstract "Abstract Specific surface area is an important property of porous materials and mainly measured using nitrogen isotherm and Brunauer–Emmett-Teller (BET) equation. BET surface area is remarkably higher than geometric surface area, which is defined as the surface area of the crystal geometry structure. However, many studies directly use the BET surface area as the geometric surface area. We proposed a simple, general, and accurate method that only needs nitrogen adsorption isotherm as input to calculate the geometric surface area of mesoporous materials using an iterative algorithm. The proposed method considers the adsorbent influences combined with the physical state of adsorbed nitrogen in estimating the surface area. We utilized 18 isotherms generated by molecular simulations and actual experiments to cover a wide range of materials, including catalysts, minerals, and carbon-based tube, and validate the effectiveness of the proposed method. Our results showed that the surface area determined by the proposed method and referenced geometric area are almost identical. The surface obtained by the proposed method can be typically considered a geometric surface area." @default.
- W4296555342 created "2022-09-21" @default.
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- W4296555342 date "2022-09-12" @default.
- W4296555342 modified "2023-09-27" @default.
- W4296555342 title "Determining the geometric surface area of mesoporous materials" @default.
- W4296555342 doi "https://doi.org/10.21203/rs.3.rs-2018509/v1" @default.
- W4296555342 hasPublicationYear "2022" @default.
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