Báo cáo hóa học: " Facile Synthesis of Novel Nanostructured MnO2 Thin Films and Their Application in Supercapacitors" pptx

... adsorption of cations in the electrolyte (M ? = Li ? ,Na ? , and K ? ) on the surface of MnO 2 and also possible intercalation/deintercalation of H ? and alka- line metal cations in the bulk of MnO 2 [29]. ... MnO 2 thin films with different nanostructures, and d EIS spectra of MnO 2 thin films with different nanostructures 1038 Nanoscale Res Lett (2009) 4:1035–1040 12...

Ngày tải lên: 21/06/2014, 20:20

... spacing in Li 4 Ti 5 O 12 . The presence of single-phase Li 4 Ti 5 O 12 was also confirmed from the SAED patterns shown in the inset of Figure 3c. Nanostructured electrode materials help in ... measurements. In addition, the electron diffraction (selected area electron diffraction [SAED]) pattern of the selected area coincided with that of anatase TiO 2 , as shown in t...

Ngày tải lên: 20/06/2014, 23:20

... spectra of InP NQDs. (a) InP NQDs synthesized by varying the ratio of In and MA by 1:2.5, 1:3, and 1:3.5 using P(SiMe 3 ) 3 ; (b) InP NQDs synthesized at different reaction temperatures (In/ MA ... P(SiMe 3 ) 3 , in situ-generated PH 3 was introduced as a P precursor for InP synthesis by Peter Reiss's group [9]. In the synthesis of high-quality InP or InP/ZnS N...

Ngày tải lên: 21/06/2014, 17:20

... surrounding vapors of B 2 O 2 ,C 2 H 5 OH, N 2 , and H 2 (Fig. 5a). The involving species of B and C could lead to the further decrease of the melting temperature of stainless steel and promotes ... High- magnification image of a, indicating the bamboo-like structure and high purity of the nanotubes. c and d The secondary electron and back scattering electronic (BSE) SE...

Ngày tải lên: 22/06/2014, 00:20

... Engineering, East China University of Science and Technology, 200237 Shanghai, China e-mail: luan@ecust.edu.cn X. Zhou State Key Laboratory of Chemical Engineering, East China University of Science ... investigation of the in uence of OA on size distribution and growth kinetics was con- ducted to achieve the size-controlled synthesis of CdS NCs. The in uence of OA on the...

Ngày tải lên: 22/06/2014, 00:20

... ZnO an ideal candidate for UV laser. The synthesis of one-dimensional single crystalline ZnO nanostructures has been of increasing interest due to their promising applications in nanoscale optoelectronic ... nanorods fall in the range of about 25–75 nm and length in the range of 500–1,500 nm with an aspect ratio of about 20–50. UV–VIS and photo- luminescence spectra o...

Ngày tải lên: 22/06/2014, 06:20

... Zn(ex) 2 , dissolved in 1.3 g of dioctylamine (DOA), and 0.4 mmol of zinc stearate in 5 ml of octadecene was added within 45 min by means of a syringe pump. Aliquots were taken during the injection to ... oleyl- amine/octadecene solvent mixture instead of pure octadecene. In our experiments, the addition of a primary amine to the solvent led to a narrowing of the size di...

Ngày tải lên: 22/06/2014, 22:20

... multilayer thin films. average grain size increased with an increase in the number of coatings due to the increased number of heat treatments. The average grain sizes of the PZT/BFO-4 and ... an increase in the number of coatings and an increase in the film thickness, and the PZT/BFO-6 film displays good results of 405 and 0.033%, respectively, at 1 k...

Ngày tải lên: 20/06/2014, 23:20

... understanding of the structural, electromechanical and electro-o ptical proper- ties of nanocrystalline (nc) thin films is crucial for device applications. Experimental details ZnO:Ga (GZO) thin films ... strength of the coatings were investigated by means of tensile testing. The COS is similar for different GZO coatings and occurs for nominal strains approx. 1%. The cohes...

Ngày tải lên: 21/06/2014, 04:20

... survival in the setting of stress. Understanding the molecular structure and function of it and its ligands in the setting of inflammation is critically important in understanding the role of this ... loop. Members of this family differ from each other mainly in the length and sequence of their hinge regions and the C-terminal exten- sion region after the binding...

Ngày tải lên: 18/06/2014, 15:20