Báo cáo hóa học: " Synthesis and Characterization of ZnO Nanowire–CdO Composite Nanostructure" docx

... elemental mapping of b Zn, c O and d Cd, respectively Fig. 6 Diffuse reflectance spectra (DRS)ofa ZnO NWs and b ZnO NW–CdO composites. The inset shows the digital photograph of the ZnO NW and ZnO NW–CdO composite ... pattern obtained from the a ZnO NWs and b ZnO NW–CdO composites Nanoscale Res Lett (2009) 4:1329–1334 1331 123 NANO EXPRESS Synthesis and Characteri...

Ngày tải lên: 22/06/2014, 00:20

... morphologies of the samples prepared in aqueous solutions of equimolar of ZnCl 2 –HMT mixture with and without 50 vol.% EG additive. The initial con- centrations of Zn 2? were 0.01 M, 0.05 M, and 0.1 ... morphology and crystalline phase of the product by the heat treatment of ZnCl 2 –HMT aqueous solution with and without EG changed greatly depending on the concentrations...

Ngày tải lên: 22/06/2014, 01:20

... results and wrote the paper. JS, HP, JWK, and KK participated in the characterization of samples and carried out experiments. VM contributed to the technical discussions. All the authors have read and ... 7:60 http://www.nanoscalereslett.com/content/7/1/60 Page 5 of 9 NANO EXPRESS Open Access Synthesis and characterization of integrated layered nanocomposites for lithium...

Ngày tải lên: 20/06/2014, 23:20

... emission intensities of ZnO in core/shell sample originates from the t ype I band al ignment between ZnO and BeO, in which the valence band maximum of BeO is of lower energy than that of ZnO, while the ... conduction band minimum of BeO is of higher energy than that of ZnO [32]. In such case, a potential well for both electron and hole is formed and the exciton is c...

Ngày tải lên: 21/06/2014, 00:20

... derivative of both curves of the hysteresis loops (heating and cooling) and considering the mean value. Results and discussion Structural characterization The crystal structure of the three sets of films ... toward the conduction band. Since intrinsic VO 2 thin film is of n-type, introduction of ion donors c ause an inevitable degradation of the transmittance (and resis...

Ngày tải lên: 21/06/2014, 04:20

... Open Access Synthesis and characterization of integrated layered nanocomposites for lithium ion batteries Jihyeon Gim, Jinju Song, Hyosun Park, Jungwon Kang, Kangkun Kim, Vinod Mathew and Jaekook ... basis of a trigonal structure of space group ¯ R3m with monoclinic C2/m phase as expected. The morphologies and electrochemical properties of the samples obtained were compared...

Ngày tải lên: 21/06/2014, 17:20

... stabilization. An in-depth study is required, and further experiments are underway to understand and investigate the exact mechanism and the role of TG in the synthesis of CuO nanowires. In order to detect ... nanowires and nanotubes. Acc Chem Re 1999, 32:435-445. (a) (b) Figure 1 Abstract We report a successful synthesis of copper oxide nanowires with an average...

Ngày tải lên: 21/06/2014, 17:20

... applications of these materials for energy and biological aspects are in progress. Conclusion A single-step process for the synthesis of good quality and large quantities of metal-encapsulated MWNB and ... Fine powders of alloys, with fresh surfaces, were obtained with several cycles of hydrogen absorption and desorption. Synthesis, Characterization and Magnetization...

Ngày tải lên: 21/06/2014, 22:20

... Shi Department of Physics, School of Sciences, China University of Mining and Technology, 221008 Xuzhou, People’s Republic of China e-mail: yifeng@semi.ac.cn C. Xue Institute of Semiconductors, College of ... nanowires, indicating that the majority of the nanowires with a radial distribution are straight, and are grown with diameters of 50–200 nm and lengths of tens o...

Ngày tải lên: 22/06/2014, 00:20

... study, the band gap energy of the allowed direct transitions at 3.3 eV of SnS 2 nanowires with 40 nm diameter is agreeable to those obtained of Panda et al. Our band gap energy (3.3 eV) of SnS 2 nanowires ... between those sub-bands. Those bands of SnS 2 nanocrystallites may be associated with the presence of defect either interface or interior. Our band gap energies (4.4 and 5....

Ngày tải lên: 22/06/2014, 00:20