Báo cáo hóa học: " Synthesis and Microstructural Investigations of Organometallic Pd(II) Thiol-Gold Nanoparticles Hybrids" potx

... difference of the positions of PL emission peaks of hybrids (1) and (2) is likely due to the different chemical structure of the organometallic Pd(II) complex. The shape and structure of the hybrid ... gold nanoparticles was synthe- sized and characterized and XRD, TEM, and XPS analyses confirmed the link between Au and Pd(II) through S-bridge. The nanoparticles...

Ngày tải lên: 22/06/2014, 01:20

... measurements and data analysis, and drafted the manuscript. DG and DX made the conception and design of the manuscript. ZZ2 carried out the XPS measurements and data analysis. JLZ and ZZ1 participated ... experiment and theroy, such as, Mn [5,6], Gd [7], and Cr [8,9]. Compared with GaN, ZnO has a lot of outs tanding superiorities, as is known to all, which has a wide band-...

Ngày tải lên: 20/06/2014, 22:20

... as-synthesized CoFe 2 O 4 nanoparticles Fig. 3 FTIR spectra of the as-synthesized CoFe 2 O 4 nanoparticles Nanoscale Res Lett (2010) 5:1039–1044 1041 123 However, the synthesis of CoFe 2 O 4 nanoparticles ... typical synthesis, 1.6 g (6 mmol) of FeCl 3 Á6H 2 O and 0.7 g of (3 mmol) CoCl 2 Á6H 2 O were dissolved in the solvent composed of 80 ml of water and 40 ml of...

Ngày tải lên: 21/06/2014, 18:20

... 120, and 180 min, respectively Fig. 7 a The decomposition of the PL spectrum of the SiNWs treated with HF and the PL intensity varieties of the elementary bands with b H 2 O 2 concentrations and ... properties of the porous SiNWs. Figure 6a and b display the PL spectrums of the porous SiNWs with different H 2 O 2 concentrations and etching Fig. 2 SEM and TEM images of...

Ngày tải lên: 21/06/2014, 08:20

... process, corre- sponding to the one band of the v1 mode and two bands of the v3 mode (C 3v symmetry), respectively [24]. The ATR- FTIR spectra of starting materials and c-Fe 2 O 3 SNTs show similar ... crystalline character with lattice spacing of 0.252 nm and 0.295 nm, which can be indexed to the (311) and (220) planes of cubic c-Fe 2 O 3 . And the HRTEM image take from t...

Ngày tải lên: 21/06/2014, 17:20

... method of functionalizing QDs is simple and can avoid complicated synthesis and characterization of the intermediate products of QDs, when reactions are performed on the QD surfaces. A number of ... prepared, and few microlitres (10–50 lL) of these solutions were added to the different sets of 3 mL solution of CdTe QDs. In a typical synthesis of CdTe–Dendrimer conjug...

Ngày tải lên: 21/06/2014, 20:20

... that the formation process of Ni nanowires begins with the formation of Ni nanotubes. Nanotubes were formed at first, and then Ni nanoparticles of the electrode stacked randomly in the tubes, until ... the formation of nanotubes and nanowires. Figure 4 illustrates schematic diagrams of the electrodeposition process for Ni nanotubes and nanowires. Figure 4a provides a clear un...

Ngày tải lên: 21/06/2014, 20:20

... more and more silicon and carbon atoms were adhere to the surface of the SiC nanoparticles, and then most of them moved to the lowest energy plane of SiC when supersaturated. The surface energy of ... existence Fig. 4 a SEM image of bamboo carbon, b and c SEM and FE-SEM images of the synthesized b-SiC NWs, d EDS spectrum of b-SiC NWs Fig. 5 TEM and HRTEM images of...

Ngày tải lên: 22/06/2014, 00:20

... Foundation of China (Grant Nos. 60778040, 10804036, 60878039), the Science and Technology Bureau of Key Program for Ministry of Education (Item No. 207025), and the Development of the Science and Technology ... surfaces. Conclusions WSe 2 nanorods of 10–50 nm in diameters and 100–400 nm in lengths were prepared successfully by solid-state reac- tion of the tungsten and s...

Ngày tải lên: 22/06/2014, 01:20

... impaired hand to partake in activities of daily living. However, these devices vary widely in terms of actuated degrees -of- freedom (DOFs), range of motion and design philosophy. One class of devices ... inside and outside of HEXORR. For the 1 st and 3 rd digits of the hand, mean joint-pair coordination comparisons between active-unassisted extension movements inside HEXORR...

Ngày tải lên: 19/06/2014, 08:20