On the Correlation Between Micropore Distribution Obtained from Molecular Probes and from High Resolution Electron Microscopy PDF Download
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Languages : en
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By using immersion calorimetry with liquids of various molecular dimensions, the distributions of the micropore sizes have been obtained for a number of active carbons, for the range 0.3 to 0.75 nm. These carbons have also been examined by high-resolution electron microscopy, the results from both techniques being displayed in the form of histograms. The agreement between the two methods appears to be good and provides possible evidence of the reduced interaction radius of adsorbed molecules and of exfoliation.
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Languages : en
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By using immersion calorimetry with liquids of various molecular dimensions, the distributions of the micropore sizes have been obtained for a number of active carbons, for the range 0.3 to 0.75 nm. These carbons have also been examined by high-resolution electron microscopy, the results from both techniques being displayed in the form of histograms. The agreement between the two methods appears to be good and provides possible evidence of the reduced interaction radius of adsorbed molecules and of exfoliation.
Author: Ljubisa R. Radovic
Publisher: CRC Press
ISBN: 1482275988
Category : Science
Languages : en
Pages : 288
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Book Description
The Chemistry and Physics of Carbon series presents advances in carbon research and development and comprehensive reviews on the state of the science in all these areas. Building on the tradition of its highly acclaimed predecessors, Volume 28 of this series presents authoritative, interdisciplinary coverage of contemporary topics. With contributio
Author: David G. Rickerby
Publisher: Springer Science & Business Media
ISBN: 9401144516
Category : Technology & Engineering
Languages : en
Pages : 503
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Book Description
The Advanced Study Institute provided an opportunity for researchers in universities, industry and National and International Laboratories, from the disciplines ofmaterials science, physics, chemistry and engineering to meet together in an assessment of the impact of electron and scanning probe microscopy on advanced material research. Since these researchers have traditionally relied upon different approaches, due to their different scientific background, to advanced materials problem solving, presentations and discussion within the Institute sessions were initially devoted to developing a set ofmutually understood basic concepts, inherently related to different techniques ofcharacterization by microscopy and spectroscopy. Particular importance was placed on Electron Energy Loss Spectroscopy (EELS), Scanning Probe Microscopy (SPM), High Resolution Transmission and Scanning Electron Microscopy (HRTEM, HRSTEM) and Environmental Scanning Electron Microscopy (ESEM). It was recognized that the electronic structure derived directly from EELS analysis as well as from atomic positions in HRTEM or High Angle Annular Dark Field STEM can be used to understand the macroscopic behaviour of materials. The emphasis, however, was upon the analysis of the electronic band structure of grain boundaries, fundamental for the understanding of macroscopic quantities such as strength, cohesion, plasticity, etc.
Author: Ralph Feder
Publisher: Springer Science & Business Media
ISBN: 146132209X
Category : Social Science
Languages : en
Pages : 381
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Book Description
An Institute like ours cannot help but lend credence to the notion of the late Derek J. de Solla Price of Yale University that "the scientific revolution was largely the improvement, invention and use of a series of instruments . . . . that expanded the reach of science in innumerable directions". Most of science today and in years gone by depends on the experimental observation of struc ture on the small scale with microscopes, and on the large scale with telescopes. The first instruments to expand the observational range of the human eye were simple optical systems, designed in the case of microscopes and telescopes to magnify the image. The big breakthrough in the 17th century was not when Galileo first turned his telescope to the heavens, but when improvements in lens-grinding techniques allowed eyeglass makers to make the first telescope. Early microscopy revealed new and previously unsuspected microstruc tures in biological and non-biological materials and thus helped to enlarge on the understanding of the relationship between structure and properties. The natural inclination of all microscopists, the desire to observe ever smaller structures, was satisfied by the construction of higher quality optical systems which reduced the aberrations limiting the usable magnification. The modem optical microscope is the result of this evolution in design and construction, and it can be operated easily to achieve close to the theoretical resolution.
Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 774
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Book Description
Theses on any subject submitted by the academic libraries in the UK and Ireland.
Author: Angelo Basile
Publisher: John Wiley & Sons
ISBN: 0470977574
Category : Science
Languages : en
Pages : 661
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Book Description
A membrane reactor is a device for simultaneously performing a reaction and a membrane-based separation in the same physical device. Therefore, the membrane not only plays the role of a separator, but also takes place in the reaction itself. This text covers, in detail, the preparation and characterisation of all types of membranes used in membranes reactors. Each membrane synthesis process used by membranologists is explained by well known scientists in their specific research field. The book opens with an exhaustive review and introduction to membrane reactors, introducing the recent advances in this field. The following chapters concern the preparation of both organic and inorganic, and in both cases, a deep analysis of all the techniques used to prepare membrane are presented and discussed. A brief historical introduction for each technique is also included, followed by a complete description of the technique as well as the main results presented in the international specialized literature. In order to give to the reader a summary look to the overall work, a conclusive chapter is included for collecting all the information presented in the previous chapters. Key features: Fills a gap in the market for a scientific book describing the preparation and characterization of all the kind of membranes used in membrane reactors Discusses an important topic - there is increasing emphasis on membranes in general, due to their use as energy efficient separation tools and the ‘green’ chemistry opportunities they offer Includes a review about membrane reactors, several chapters concerning the preparation organic, inorganic, dense, porous, and composite membranes and a conclusion with a comparison among the different membrane preparation techniques
Author:
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Category : Carbon
Languages : en
Pages : 926
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Book Description
Author:
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Category :
Languages : en
Pages :
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Book Description
Computer simulation of electron micrographs is an invaluable aid in their proper interpretation and in defining optimum conditions for obtaining images experimentally. Since modern instruments are capable of atomic resolution, simulation techniques employing high precision are required. This thesis makes contributions to four specific areas of this field. First, the validity of a new method for simulating high resolution electron microscope images has been critically examined. Second, three different methods for computing scattering amplitudes in High Resolution Transmission Electron Microscopy (HRTEM) have been investigated as to their ability to include upper Laue layer (ULL) interaction. Third, a new method for computing scattering amplitudes in high resolution transmission electron microscopy has been examined. Fourth, the effect of a surface layer of amorphous silicon dioxide on images of crystalline silicon has been investigated for a range of crystal thicknesses varying from zero to 2 1/2 times that of the surface layer.
Author: Zhong Lin Wang
Publisher: Cambridge University Press
ISBN: 0521482666
Category : Science
Languages : en
Pages : 457
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Book Description
A self-contained book on electron microscopy and spectrometry techniques for surface studies.
Author: Sergei V Kalinin
Publisher: Springer
ISBN: 9781493939473
Category :
Languages : en
Pages : 576
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Book Description
Here is a much-needed general overview of a rapidly developing field. It covers novel scanning probe microscopy (SPM) techniques that are used to characterize a wide range of functional materials, including complex oxides, biopolymers, and semiconductors.
