標(biāo)題: Titlebook: Characterization of Porous Solids and Powders: Surface Area, Pore Size and Density; S. Lowell,Joan E. Shields,Matthias Thommes Book 2004 S [打印本頁] 作者: 司法權(quán) 時間: 2025-3-21 18:07
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書目名稱Characterization of Porous Solids and Powders: Surface Area, Pore Size and Density讀者反饋學(xué)科排名
作者: Carminative 時間: 2025-3-21 20:45 作者: 水土 時間: 2025-3-22 00:53 作者: abolish 時間: 2025-3-22 04:33
1567-827X are the theoretical and experimental basics of these techniques presented in detail but also, in light of the tremendous progress made in recent years in materials science and nanotechnology, the most recent developments are described. In particular, the application of classical theories and978-90-481-6633-6978-1-4020-2303-3Series ISSN 1567-827X 作者: Anhydrous 時間: 2025-3-22 10:08 作者: etiquette 時間: 2025-3-22 12:55 作者: etiquette 時間: 2025-3-22 17:58 作者: Acquired 時間: 2025-3-22 22:22 作者: 揮舞 時間: 2025-3-23 01:22 作者: fringe 時間: 2025-3-23 06:36 作者: 卵石 時間: 2025-3-23 13:37
,Die Preiskompetenz des Verk?ufers,The vacuum volumetric, or static, method is used to determine the monolayer capacity of a catalyst sample from which certain important characteristics such as active metal area, dispersion, crystallite size, etc., may be derived by the acquisition of adsorption isotherms.作者: Tortuous 時間: 2025-3-23 17:18
Preisvergleich und Preisstrukturen,Under conditions of dynamic flow, controlled heating rates can be used to acquire characteristic reaction rate curves that can be used to classify, or fingerprint, different catalysts.作者: 結(jié)束 時間: 2025-3-23 20:20 作者: CODE 時間: 2025-3-24 01:15
Mercury Porosimetry: Non-wetting Liquid PenetrationThe method of mercury porosimetry for the determination of the porous properties of solids is dependent on several variables. One of these is the wetting or contact angle between mercury and the surface of the solid.作者: glisten 時間: 2025-3-24 02:56 作者: 轎車 時間: 2025-3-24 08:38
Volumetric Chemisorption: Catalyst Characterization by Static MethodsThe vacuum volumetric, or static, method is used to determine the monolayer capacity of a catalyst sample from which certain important characteristics such as active metal area, dispersion, crystallite size, etc., may be derived by the acquisition of adsorption isotherms.作者: Coronary-Spasm 時間: 2025-3-24 12:44 作者: inhibit 時間: 2025-3-24 17:45
https://doi.org/10.1007/978-1-4020-2303-3Activation energy; Adsorption Isotherms; Chemisorption; Gas Adsorption; Langmuir and BET Theories; Non-We作者: 傳染 時間: 2025-3-24 19:01
978-90-481-6633-6Springer Science+Business Media B.V. 2004作者: 平息 時間: 2025-3-25 03:10
Surface Area Analysis from the Langmuir and BET Theoriesphysisorption isotherms of type I. Although this type of isotherm is usually observed with microporous adsorbents, due to the high adsorption potential, a separation between monolayer adsorption and pore filling is not possible for many such adsorbents.作者: 效果 時間: 2025-3-25 03:45 作者: Adrenal-Glands 時間: 2025-3-25 09:45
Characterization of Porous Solids and Powders: Surface Area, Pore Size and Density978-1-4020-2303-3Series ISSN 1567-827X 作者: PLIC 時間: 2025-3-25 12:51 作者: Mets552 時間: 2025-3-25 19:08
https://doi.org/10.1007/978-3-540-68359-9volume specific surface areas, sample cell void volume, and numerous other calculated volumes, all require accurately measured powder densities or specific volumes. It is appropriate, therefore, to introduce density measurements of solids.作者: Heart-Attack 時間: 2025-3-25 22:47
Was wird hier eigentlich gespielt?,of radius . cm exhibits 4π.. cm. of surface. In reality, however, mathematical, perfect or ideal geometric forms are unattainable since under microscopic examinations all real surfaces exhibit flaws. For example, if a ‘super microscope’ were available one would observe surface roughness due not only作者: colostrum 時間: 2025-3-26 03:35
https://doi.org/10.1007/978-3-662-39586-8ngle x-ray and neutron scattering (SAXS and SANS), mercury porosimetry, electron microscopy (scanning and transmission), thermoporometry, NMR-methods, and others. Each method has a limited length scale of applicability for pore size analysis. An overview of different methods for pore size characteri作者: 衰弱的心 時間: 2025-3-26 05:37 作者: 線 時間: 2025-3-26 10:56
Handlungsfelder der Personalwirtschaft,les required to cover the solid with a single molecular layer. Equally important is the cross-sectional area of each molecule or the effective area covered by each adsorbed molecule on the surface. The surface area then, is the product of the number of molecules in a completed monolayer and the effe作者: 使習(xí)慣于 時間: 2025-3-26 13:20 作者: 討好女人 時間: 2025-3-26 17:42
Unternehmenskultur und Unternehmensstruktur,er methods [e.g., 1, 2] including methods based on small angle x-ray scattering and small neutron scattering [3] have been developed. Whereas the scattering methods cannot be used in routine operations (to date at least), immersion calorimetry and in particular permeability measurements are more fre作者: Notify 時間: 2025-3-27 00:48 作者: 乳白光 時間: 2025-3-27 02:31 作者: Incorporate 時間: 2025-3-27 07:18
Preisvergleich und Preisstrukturen,apter 2). However, surface atoms often possess electrons or electron pairs that are available for chemical bond formation. Resulting chemical adsorption or chemisorption has been defined by IUPAC [1] as “adsorption in which the forces involved are valence forces of the same kind as those operating i作者: Moderate 時間: 2025-3-27 13:29
Praktische Preis- und Konditionenpolitikues, nuclear resonance as well as by a combination of calorimetric and impedance spectroscopic measurements (for an overview see refs [1–3]). However, the most frequently used methods are the volumetric (manometric) and the gravimetric methods. The gravimetric method is based on a sensitive microbal作者: Alcove 時間: 2025-3-27 13:38 作者: 休戰(zhàn) 時間: 2025-3-27 20:13
Praktische Preis- und Konditionenpolitikut of a mixture of nitrogen and helium that was passed back and forth over the sample between two burettes by raising and lowering attached mercury columns. Equilibrium was established by noting no further change in pressure with additional cycles. The quantity adsorbed was determined by the pressur作者: BOAST 時間: 2025-3-28 01:49
Praktische Preis- und Konditionenpolitikterials. Most materials can be analyzed so long as the sample can be accommodated in the instrument, which typically restricts the sample dimensions to no more than 2.5cm. Those materials that amalgamate with mercury (zinc and gold for example) cannot be analyzed unless extreme steps are taken to pa作者: Loathe 時間: 2025-3-28 03:12 作者: 冒煙 時間: 2025-3-28 07:03 作者: stress-test 時間: 2025-3-28 10:25 作者: Insulin 時間: 2025-3-28 14:45 作者: 大都市 時間: 2025-3-28 19:38 作者: 不如屎殼郎 時間: 2025-3-29 01:40
https://doi.org/10.1007/978-3-662-39586-8on, gas adsorption techniques are convenient to use and are not that cost intensive as compared to some of the other methods. A combination of mercury porosimetry and gas adsorption techniques allows even performing a pore size analysis over a range from ca. 0.35 nm up to ca. 400 μm.作者: 我要威脅 時間: 2025-3-29 06:39
Unternehmenskultur und Unternehmensstruktur,3). However, no attempt is made to derive and discuss these alternate methods completely, but rather to present their essential features and to indicate how they may be used to calculate surface areas.作者: Efflorescent 時間: 2025-3-29 07:28
Praktische Preis- und Konditionenpolitikd it is therefore more difficult to control and measure the exact temperature of the adsorbent at both high and cryogenic temperatures. Therefore, the volumetric method is recommended to measure the adsorption of nitrogen, argon and krypton at the temperatures of liquid nitrogen (77.35 K) and argon (87.27 K) [4].作者: Arb853 時間: 2025-3-29 11:44 作者: Frisky 時間: 2025-3-29 16:05
Other Surface Area Methods3). However, no attempt is made to derive and discuss these alternate methods completely, but rather to present their essential features and to indicate how they may be used to calculate surface areas.作者: Vaginismus 時間: 2025-3-29 22:34
Physical Adsorption Measurement: Preliminariesd it is therefore more difficult to control and measure the exact temperature of the adsorbent at both high and cryogenic temperatures. Therefore, the volumetric method is recommended to measure the adsorption of nitrogen, argon and krypton at the temperatures of liquid nitrogen (77.35 K) and argon (87.27 K) [4].作者: intelligible 時間: 2025-3-30 02:15 作者: 結(jié)果 時間: 2025-3-30 05:23 作者: Proclaim 時間: 2025-3-30 08:25
Handlungsfelder der Personalwirtschaft,ctive cross-sectional area of an adsorbate molecule. The number of molecules required for the completion of a monolayer will be considered in this chapter and aspects of the adsorbate cross-sectional area will be discussed in chapter 5.作者: kidney 時間: 2025-3-30 14:25
Preisvergleich und Preisstrukturen,ted manometer, and a coolant. Fig.14.1a describes a historical set-up using an Hg-volume manometer instead of a pressure transducer; the volumes V., V., and V. correspond to the calibrated reference volume in Fig. 14.1b, which refers to a simplified, modern static volumetric sorption apparatus.作者: 誘惑 時間: 2025-3-30 16:45 作者: cacophony 時間: 2025-3-31 00:00
1567-827X wth of interest in newly developed porous materials has prompted the writing of this book for those who have the need to make meaningful measurements without the benefit of years of experience. One might consider this new book as the 4th edition of "Powder Surface Area and Porosity" (Lowell & Shield作者: cipher 時間: 2025-3-31 04:12 作者: intercede 時間: 2025-3-31 06:10 作者: 展覽 時間: 2025-3-31 11:26 作者: 雄偉 時間: 2025-3-31 16:27 作者: Ingredient 時間: 2025-3-31 19:22 作者: 控制 時間: 2025-3-31 23:49
Adsorption Mechanismctive cross-sectional area of an adsorbate molecule. The number of molecules required for the completion of a monolayer will be considered in this chapter and aspects of the adsorbate cross-sectional area will be discussed in chapter 5.作者: 怒目而視 時間: 2025-4-1 02:14
Vacuum Volumetric Measurement (Manometry)ted manometer, and a coolant. Fig.14.1a describes a historical set-up using an Hg-volume manometer instead of a pressure transducer; the volumes V., V., and V. correspond to the calibrated reference volume in Fig. 14.1b, which refers to a simplified, modern static volumetric sorption apparatus.作者: 諂媚于人 時間: 2025-4-1 06:11
Mercury Porosimetry: Intra and Inter-Particle Characterizationssivate the surface. The exact pore size range that can be measured depends predominantly on the instrument pressure range but also on the contact angle employed in the Washburn equation. The largest pore size that can be determined is limited by the lowest filling pressure attainable and the smallest pore size by the highest pressure achievable.作者: 通情達(dá)理 時間: 2025-4-1 12:05 作者: LAVE 時間: 2025-4-1 15:39
Gas Adsorptionngle x-ray and neutron scattering (SAXS and SANS), mercury porosimetry, electron microscopy (scanning and transmission), thermoporometry, NMR-methods, and others. Each method has a limited length scale of applicability for pore size analysis. An overview of different methods for pore size characteri作者: 伸展 時間: 2025-4-1 20:16
Adsorption Isotherms fluid-fluid interactions as well as the effects of confined pore space on the state and thermodynamic stability of fluids confined to narrow pores. The International Union of Pure and Applied Chemistry [1] proposed to classify pores by their internal pore width (the pore width defined as the diamet作者: DOLT 時間: 2025-4-1 23:35 作者: deriver 時間: 2025-4-2 05:45 作者: Delude 時間: 2025-4-2 08:15
Other Surface Area Methodser methods [e.g., 1, 2] including methods based on small angle x-ray scattering and small neutron scattering [3] have been developed. Whereas the scattering methods cannot be used in routine operations (to date at least), immersion calorimetry and in particular permeability measurements are more fre作者: Valves 時間: 2025-4-2 11:34
Evaluation of Fractal Dimension by Gas Adsorptionilar, i.e., they look similar at all levels of magnification. The geometric topography (roughness) of the surface structure of many solids can be characterized by the fractal dimension, D. In the case of a Euclidean surface D is 2, however for an irregular (real) surface D may vary between 2 and 3.
