HRTEM high-resolution transition

CBM conduction band minimum HRTEM high-resolution transition electron... 

Diffraction experiments with X-rays or neutrons, as well as high-resolution transition electron microscopy, showed that SiO (Patinal) is not crystalline on a length scale > 1 nm. However, areas with a different contrast were observed by HRTEM, indicating a local heterogeneity. From in situ crystallization experiments, the size of these areas can be estimated to be 1-2 nm. 

Fig. 5.5 High-resolution transition electron microscope (HRTEM) picture of a synthetic TIMREX KC44 graphite particle describing the graphite texture as agglomeration of intergrown single crystal domains...

In Fig. 5.15 high-resolution transition electron microscope (HRTEM) pictures compare the primary particle microstructure of an acetylene black (A) showing the typical planar graphite layers with the microstructure of Super P (B) showing the large distorted graphene layers. 

Transition metal oxides attract great interests mainly due to their redox nature, which is thought to be related with their flexible stmcture modiflcation under reductive and oxidative conditions. Such stmcture modiflcation takes place by forming so called crystallographic shear (CS) stmctures to accommodate anion vacancies in speciflc crystallographic planes by simultaneous shear displacement and crystal stmctural collapse [30-32]. High-resolution transmission electron microscopy (HRTEM) is a... 

This method gives 10 g 2-liiie ferrihydrite. X-ray diffraction shows two very broad peaks at 0.24 and 0.15 nm (Fig. 8-1). The IR spectrum is almost featureless in the range above 1000 cm. With high resolution TEM (HRTEM), elear evidence of some structural order, in agreement with XRD, can be seen (Fig. 8-3). The existence of a continuous transition between 2-line and 6-line ferrihydrite (see 8.3) indicates the close relationship between 2- and 6-line ferrihydrite and justifies the name ferrihydrite for the 2-line product. 

Except for the fullerenes, carbon nanotubes, nanohoms, and schwarzites, porous carbons are usually disordered materials, and cannot at present be completely characterized experimentally. Methods such as X-ray and neutron scattering and high-resolution transmission electron microscopy (HRTEM) give partial structural information, but are not yet able to provide a complete description of the atomic structure. Nevertheless, atomistic models of carbons are needed in order to interpret experimental characterization data (adsorption isotherms, heats of adsorption, etc.). They are also a necessary ingredient of any theory or molecular simulation for the prediction of the behavior of adsorbed phases within carbons - including diffusion, adsorption, heat effects, phase transitions, and chemical reactivity. 

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