Nanoparticles activation

However, it is clear that TiN nanoparticles activate NaAlH4 and accelerate the decomposition. Therefore, the activation of NaAlH4 with TiN nanoparticles was also studied in solution. 

Wong, P, et al., Controlled release nanoparticle active agent formulation dosage forms and methods, US PatentApplication 20060057206, published in 2006. 

McCarthy J, Gong X, NahirneyD etal (2011) Polystyrene nanoparticles activate ion transport in human airway epithelial cells. Int J Nanomedicine 6 1343-1356... 

Table 5.6-6 Pd-catalyzed hydrogenation reactions, with nanoparticles actively supported on molecular sieves with a TMGL layer [log]...

This further demonstrates that the micropores formed during the thermal treatment are necessary for oxygen to access the Pt-nanoparticle active sites. Authors also evaluated the durability of the Pt C/MC hybrids through repeated CV cycles with the appropriate lower and upper potential limits in an 02-saturated electrolyte containing 0.5 mol of methanol. The results showed that the variation in the current density was only about 4 % after 40 cycles, which means that the Pt C/MC electrode has a considerable stable electrocatalytic activity for ORR in the presence of methanol [24]. 

FIGURE 3.8 Mapping of a 3D nanoparticle model onto a 2D surface model with active and inactive sites. The active site concept is the integral part of the heterogeneous surface model of nanoparticle activity, explored here for CO d electro-oxidation. Immobile adsorbs, preferentially, on specific sites called the active sites. The mobile CO d is found on the remaining inactive catalyst sites. (Reprinted with permission from Andreaus, B.et al. 2006. Kinetic modeling of COad monolayer oxidation on carbon-supported platinum nanoparticles. J. Phys. Chem. B, 110, 21028-21040, Figure 2,7,8,9, American Institute of Physics.)... 

Jiang, J., Oberdoerster, G., Elder, A., Gelein, R., Mercer, P., and Biswas, P. 2008. Does nanoparticle activity depend npon size and crystal phase 2, 33 2. 

Grunes J, Zhu J, Yang MC, Somorjai GA (2003) CO poisoning of ethylene hydrogenation over Pt catalysts a comparison of Pt(l 11) single crystal and Pt nanoparticle activities. Catal Lett 86 157-161... 

Park JN, Zhang P, Hu YS, McFarland EW (2010) Synthesis and characterization of sintering-resistant silica-encapsulated Fe304 magnetic nanoparticles active for oxidation and chemical looping combustion. Nanotechnology 21 225708... 

This work was supported by the ASFEU project Centre for Applied Research of Nanoparticles, Activity 4.2, ITMS code 26240220011, supported by the Research Development Operational Programme funded by the ERDF and by Slovak grant agency VEGA contract No. 2/0093/10. 

EIS spectra obtained for galvanised steel coupons treated with bis-[triethoxysilylpropyl] tetrasulphide (BTESPT) silane solutions modified with 250 ppm of Ce02 or SiOj nanoparticles activated with cerium ions. Spectra obtained after 24 h of immersion in 0.005 M NaCI. From Ref. 66... 

XPS analysis was also performed on the scratched substrates after 6 h of immersion. The XPS spectra obtained on the coatings filled with Ce02 nanoparticles activated with cerium ions revealed the presence of two forms of cerium Ce(III) and Ce(IV). The latter is mainly due to the presence of the Ce02 nanoparticles, whereas the former confirms the existence of Ce, which may precipitate as Ce(OH)3. For the coating modified with Si02 activated with cerium ions, the Ce3d ionisation displayed... 

The model provided a good fit to the experimental data for bulk PS and aqueous-suspended PS nanoparticles. Activation energies for aqueous-suspended PS nanoparticles were sUghdy lower than those of bulk PS. The partition parameter, X, and stretched exponential parameter, were larger with soft confinement when compared to bulk PS at identical values of Tg - Ta. At early aging times, the initial plateau was predicted to be longer for aqueous suspended PS nanoparticles compared to bulk PS. 

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