Fe TEM images

Figure 2.13 TEM and FE-TEM images of Au-CNFs with various graphiti-zation temperatures at [a and d] 600°C, (b and e) 800°C and [c and f] 1000°C, respectiveiy. Reprinted with permission from Ref. 64. Copyright 2014, Royal Society of Chemistry.

Transport and Adsorption Phenomena in Mesopores, Fig. 3 (a) FE-SEM image of an SBA-16 film synthesized on the top surface of a Si substrate, (b) FE-TEM image of the cross section of the film, and (c) schematic of ionic current measurement. Scale bar in FE-SEM and FE-TEM images is 50 nm... 

Fig. 2. (a) (b) Transmission electron microscopy (TEM) images of as-grown VGCFs (broken portion) with the PCNT core exposed field emission-type scanning electron microscopy (FE-SEM) image of (c) as-grown and (d) heat-treated VGCFs (broken portion) at 2800°C with PCNT (white line) exposed [20],... 

The effect of oxidation pretreatment and oxidative reaction on the graphitic structure of all CNF or CNF based catalysts has been studied by XRD and HRTEM. From the diffraction patterns as shown in Fig. 2(a), it can be observed the subsequent treatment do not affect the integrity of graphite-like structure. TEM examination on the tested K(0.5)-Fe(5)/CNF catalysts as presented in Fig.2(b), also indicates that the graphitic structure of CNF is still intact. The XRD and TEM results are in agreement with TGA profiles of fi-esh and tested catalyst there is no obviously different stability in the carbon dioxide atmosphere (profiles are not shown). Moreover, TEM image as shown in Fig. 2(b) indicates that the iron oxide particle deposited on the surface of carbon nanofibcr are mostly less than less than 10 nm. 

Very recently, we have developed one-pot synthesis of FePt nanoparticles larger than 5 nm with controlled composition by the polyol reduction of Pt(acac)2 and Fe(acac)3 in excess ligands without using the conventional solvents [23]. Figure 8 presents the TEM images... 

Figure 4 shows TEM images of CNT synthesized by using aluminosilicates. The results show that A1 incorporated in mesoporous silica reduces considerably the quantity of amorphous carbon, increasing the catalyst selectivity. The Fe/Al-MCM41 (10) shows the MWCNTs with the highest purity (98%), an average diameter of 40 nm and the lowest quantity of amorphous carbon. 

TEM images of carbon filaments produced by decomposition of NG over Fe(10 wt%)/Al203 catalyst at 850°C. (a) Carbon filaments with embedded iron nanoparticles, (inset b) high-resolution TEM image of the wall of a carbon filament, and (c) = an iron nanoparticle encapsulated in carbon layers at the tip of a carbon filament. 

Observations of the same clay sample in a very finer scale (500 nm) by TEM, may help to identify the potential Fe-oxyhydroxide surfaces attached on a sediment grain (Fig.6). Moreover, abundances of wide spread oxides that may have formed oxide minerals after binding with other elements such as Si, Fe and Al can easily be recognized from the right part of the TEM image (Fig. 7). 

In 2008 Shin et al. used lETS and transmission electron microscopy (TEM) to characterize the chemical integrity and morphology of rubrene (C40H24) layers after deposition of an Fe top electrode [57]. The lETS spectra were consistent with the known IR- and Raman-active normal modes, which led the authors to conclude there were no chemical reactions with Fe. Cross-sectional TEM images showed continuous rubrene layers between the bottom Co layer and top Fe layer, with no evidence for small particle formation. Similar to the study by Santos et al., they found that the presence of an AI2O3 layer had a profound effect on the tunneling... 

Fig. 5.1.3 TEM images (a) basic iron sulfate particles prepared by aging a 0.088 mol din-3 Fe2(S04)3 at 98°C in an oven for 3 h (b) carbon replica of the same particles as described in (a) (c) basic iron sulfate particles prepared by aging a solution of 0.18 mol dm-3 in Fe(N03)3 and 0.53 mol dm-3 in Na2S04 in oil bath heated from room temperature to 80°C at a constant rate of 1.5°C min-1 and aged at 80pC for 1.5 h (d) carbon replica of the same panicles as in (c), but aged for 2 h at 80°C. (From Ref. 9.)...

CoO-coated Co cluster and oxide-coated Fe cluster assemblies were prepared by a plasma-gas-aggregation cluster-beam-deposition technique [37-39]. For preparation of CoO-coated Co cluster assembly, oxygen gas was introduced through a nozzle near the skimmer into the deposition chamber. The Co clusters with CoO shells were formed before deposition onto the substrate [37], Figure 8 shows a TEM image of the clusters produced at oxygen gas flow rate R(02) = 1 seem. Clusters are almost monodispersed, with the mean diameter of about 13 nm. Electron diffraction pattern indicated the coexistence of Co and CoO phases. The cluster assemblies were formed on a polyimide film with a thickness of about 100 nm. 

Figure 9. TEM image of the oxide-coated Fe clusters with mean diameter of 13 nra, after [391.

Fig. 6 a TEM images of the CNT-g-P2VP after deposition of PB2 clusters. b,c HR TEM images of the core-shell structure of the particles consisting of a dense crystalline core (diameter of 3-5 nm) surrounded by a few nanometer-thick amorphous shell. HR TEM image (d) and selected area diffraction pattern (e) confirm the crystalline structure of the PB clusters (lattice distances of 2.09 A (Fe —N), 1.96 A and 1.83 A (Fe —C) that correspond to the (422), (333) and (404) reflections, respectively)... 

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