High-resolution electron microscopic images

Fig. 9. Magnified Pd EnCat catalysts bead and high-resolution electron microscope image of the surface of the polyurea matrix...

Figure 5 High-resolution electron microscope images of SMAD gold nanoparticles. Note the rows of gold atoms and the exact monodispersity of the samples. Some of the particles are single crystals, while others are multi-domain...

Figure 5 shows high-resolution electron microscope images of several gold nanoparticles formed by this metal vapor synthesis method, often called Solvated Metal Atom Dispersion (SMAD). 

Figure 9.16 High-resolution electron microscope images of carbon nanotubes first observed by Iijima (the fringes in the figure represent the walls of the carbon nanotubes). Reproduced with permission from [98], Copyright (1991) Nature Publishing...

Figure 3 High-resolution electron microscopic image of the n = 4.5 member in the A03 +2 series.

Time-Resolved Analysis of High-Resolution Electron Microscope Images, J.P. Goral, A. Holladay and L. Eyring, Ultramicroscopy, 18,275-280 (1985). 

Figure 2.6 High-resolution electron microscopic (HREM) image of ZSM-5/silicalite. The computer-simulated image is shown as an inset. The corresponding electron diffraction pattern and structural drawing are also given. Notice how the large channels ( 6.5 A diameter) as well as the small ones are revealed in the image. The zig-zag path of inversion symmetry lines joining the interchannel apertures is indicated by the bars drawn. (Courtesy of G.R. Millward J.M. Thomas. University of Cambridge.)...

The most important aspect of electron microscopy in solid state chemistry lies in its ability to elucidate problems that are beyond the capability of X-ray or neutron crystallography. High-resolution electron microscopic (HREM) images show local structures of crystals in remarkable detail in Fig. 2.10 we show the HREM image of Big, W03 obtained with the Cambridge University 500 kV microscope to show the improved resolution compared with the image obtained with a 200 kV microscope... 

We have used both transmission electron microscopy (TEM) and Raman spectroscopy to characterize the different DWNTs samples. TEM allows direct imaging of the DWNTs and gives indications for the presence of other species along with the DWNTs. In the TEM images, we seldom encountered SWNTs or MWNTs. Besides providing information on the nature and dimensions of DWNTs, Raman spectroscopy helps to characterize the purity and quality of the DWNTs. Electron energy loss spectroscopy (EELS), carried out in a high-resolution electron microscope, and X-ray photoelectron microscopy have been employed to determine the elemental composition of the DWNTs. 

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