Adsorption and Diffusion in Nanoporous Materials

As nanomaterials get smaller, their properties increasingly diverge from their bulk material counterparts. Written from a materials science perspective, Adsorption and Diffusion in Nanoporous Materials describes the methodology for using single-component gas adsorption and diffusion measurements to characterize nanoporous solids.Concise, yet comprehensive, the book covers both equilibrium adsorption and adsorption kinetics in dynamic systems in a single source. It presents the theoretical and mathematical tools for analyzing microporosity, kinetics, thermodynamics, and transport processes of the adsorbent surface. Then it examines how these measurements elucidate structural and morphological characteristics of the materials. Detailed descriptions of the phenomena include diagrams, essential equations, and fully derived, concrete examples based on the author's own research experiences and insight. The book contains chapters on statistical physics, dynamic adsorption in plug flow bed reactors, and the synthesis and modification of important nanoporous materials. The final chapter covers the principles and applications of adsorption for multicomponent systems in the liquid phase.Connecting recent advances in adsorption characterization with developments in the transport and diffusion of nanoporous materials, this book is ideal for scientists involved in the research, development, and applications of new nanoporous materials.

STATISTICAL MECHANICS Definition of Microstate and Macrostate Definition of Ensemble The Canonical Ensemble Evaluation of α and β for the Canonical Ensemble The Grand Canonical Ensemble Evaluation of α, β, and γ for the Grand Canonical Ensemble Canonical Partition Function for a System of Noninteracting Particles Factorization of the Molecular Partition Function Density Functional Theory (DFT) Thermodynamics of Irreversible Processes Statistical Mechanics of Irreversible Processes Appendix: Legendre Transformations Appendix: The Lagrange Multipliers Appendix: Methods of Counting Appendix: Calculus of Variations GENERAL INTRODUCTION TO ADSORPTION IN SOLIDS Definitions and Terminology Interfacial Layer, Gibbs Dividing Surface, and Gibbs Adsorption Thermodynamics of Gas-Solid Adsorption Gases and Vapors Adsorption in Porous Materials Some Examples of the Application of the Volumetric Method MICROPOROSITY AND SURFACE AREA EVALUATION The Dubinin and Osmotic Adsorption Isotherms Langmuir and Fowler-Guggenheim Type Adsorption Isotherm Equations The t-Plot Method Additional Comments about the Application of the Dubinin and Osmotic Isotherms, the LT and the FGT Isotherm Equation Types, and the t-Plot Method in the Measurement of the Micropore Volume The BET MethodHorvath-Kawazoe Method NANOPOROUS MATERIALS MESOPOROSITY EVALUATION Capillary Condensation Macroscopic Theories to Describe Pore Condensation Density Functional Theory DIFFUSION IN POROUS MATERIALS Fick's Laws Transport, Self-Diffusion, and Corrected Coefficients Mean Square Displacement, the Random Walker, and Gaseous Diffusion Transport Mechanisms in Porous Media Viscous, Knudsen, and Transition Flows Viscous and Knudsen Flows in Model Porous Systems Transport in Real Porous Systems: Membranes Diffusion in Microporous Materials: Zeolites and Related Materials THE PLUG-FLOW ADSORPTION REACTOR Dynamic Adsorption The Plug-Flow Adsorption Reactor Model Appendix: Laplace Transforms AMORPHOUS POROUS ADSORBENTS: SILICA AND ACTIVE CARBON Basic Features of Amorphous Silica Amorphous Silica Morphology and Surface Chemistry Precipitated Amorphous Silica Synthesis Silica Modification Fundamental Characteristics of Active Carbon Active Carbon Morphology, Surface Chemistry, and Surface Modification Active Carbon Production Methods Some Applications of Precipitated Silica in Gas Phase Adsorption Processes Some Applications of Activated Carbons and Other Carbonaceous Materials in Gas-Phase Adsorption Processes CRYSTALLINE AND ORDERED NANOPOROUS MATERIALS Fundamental Characteristics of Zeolites and Mesoporous Molecular Sieves Structure Synthesis and ModificationSome Applications of Crystalline and Ordered Nanoporous Materials in Gas Separation and Adsorption Processes ADSORPTION FROM LIQUID SOLUTION Surface Excess Amount and Amount of Adsorption for Liquid-Solid Adsorption Systems Empirical Adsorption Isotherms Applied for the Correlation of Liquid-Solid Adsorption Equilibria in Systems Containing One Dissolved Component Model Description of Adsorption from the Liquid Phase on Solids Some Applications of Liquid-Solid Adsorption *All Chapters Contain an Introduction and References Index