synthesis of single-crystalline hollow b-feooh nanorods via a controlled
synthesis of one-dimensional sno2 nanorods via a hydrothermal technique
... Synthesis of one-dimensional SnO 2 nanorods via a hydrothermal technique O. Lupan a, b, Ã , L. Chow a , G. Chai c , H. Heinrich a, d,e , S. Park a , A. Schulte a a Department of Physics, ... substrates. The products consist of nanorods as well as nanoparticles. The diameters of SnO 2 nanorods are in the range of 100–150 nm with lengths of the order of 1–2 m...
Ngày tải lên: 20/03/2014, 13:08
synthesis of single-crystalline hollow b-feooh nanorods via a controlled
... compared with bulk materials (Sun & Xia, 2004; Wang et al., 2004). These materials may be found a wide range of potenti al applications in many areas, such as catalysts, potential drug carriers, ... maintained 5 h at 82°C before ethanol- thermal reaction, (b) hollow b-FeOOH nanorods after ethanol-thermal reaction. Figure 5. Thermo-gravimetric analysis (TGA) of the b-FeOOH n...
Ngày tải lên: 20/03/2014, 13:08
Controlled growth of oriented amorphous silicon nanowires via a solid–liquid–solid (SLS) mechanism
... well-known VLS mechanism. The central idea of the VLS growth of SiNWs is that, the catalysts (usually Ni, or Fe as impurity) act as a liquid-forming agent, which reacts with the vapor phase, and forms ... phases, it is named as a SLS growth, which is in fact an analogy of the VLS mechanism. The growth process of the a- SiNWs via an SLS model is depicted schematically in Fig. 3....
Ngày tải lên: 16/03/2014, 15:14
nanoplates of snwo4 and snw3o9 prepared via a facile hydrothermal
... ␣-SnWO 4 has a higher BET specific surface area of 40.0 m 2 g −1 as compared to that of SnW 3 O 9 (27.2 m 2 g −1 ), which has a larger average crys- tallite size of 35.7 nm. The BET surface area of the ... mesoporous In 2 O 3 : synthesis by structure replication and application as a methane gas sensor, Adv. Funct. Mater. 19 (2009) 653–661. [17] E. Matijevic, Preparation andchar...
Ngày tải lên: 20/03/2014, 13:05
synthesis of hematite (r-fe2o3) nanorods diameter-size and shape effects on their
... OuYang, and Yi Xie* Department of Nano-materials and Nano-chemistry, Hefei National Laboratory for Physical Sciences at Microscale, UniVersity of Science & Technology of China, Hefei, Anhui ... functional materials as well as further applications for magnetic materials, lithium-ion batteries, and gas sensors. 1. Introduction Developing new methods for the preparation of nanomateri...
Ngày tải lên: 20/03/2014, 13:08
microwave assisted hydrothermal synthesis of single crystalline zno nanorods for
... acetaldehyde gas at low testing temperature. Fig. 2. Resistance change of ZnO nanorods at various temperatures and concentrations of either CO, ethanol or acetaldehyde gas. Fig. 3. Response of ZnO nanorods ... increases from 100 to 200 °C and then sharply decreased at 300 °C while again increased at 400 °C. Fig. 1. (a) XRD pattern of as prepared ZnO nanorods; (b) Raman spectrosco...
Ngày tải lên: 06/05/2014, 13:24
facile large scale synthesis of ws2 nanotubes from wo3 nanorods prepared by a hydrothermal route
... have been synthesised in gram quantitiesby a low temperature hydrothermal route using citric acid as a structural modifier and hexadecylamine as a templating agent. The ratio of [A] /[W] play an ... 5 ◦ and 60 ◦ (using Cu-Kα radiation), at an operation potential of 40 kV and a current of 40 mA. The morphology of the WO 3 nanorods and WS 2 nanotubeswas characterisedbyhigh-reso...
Ngày tải lên: 19/03/2014, 16:48
facile synthesis of porous a - fe2o3 nanorods and their application in ethanol sensors
... that the conventional R-Fe 2 O 3 nanoparticle sensor has a poor surface area and a relatively large particle size, whereas the sensor based on porous R-Fe 2 O 3 nanorods has a high surface area ... Facile Synthesis of Porous r-Fe 2 O 3 Nanorods and Their Application in Ethanol Sensors Yan Wang, Jianliang Cao, Shurong Wang, Xianzhi Guo, Jun Zhang, Huijuan Xia, Shoumin Zhang, and...
Ngày tải lên: 19/03/2014, 16:48
synthesis of hollow microspheres constructed with fe2o3 nanorods
... ␣-Fe 2 O 3 nanorods and their photocatalytic and magnetic properties Xiaoli Xie, Heqing Yang ∗ , Fenghua Zhang, Li Li, Junhu Ma, Hua Jiao, Jianying Zhang Key Laboratory of Macromolecular Science of Shaanxi ... shows a typical TEM image of an isolated microsphere, which indicates that the microsphere is solid and has diameter of 2m. The basic nanorods are straight and have diame...
Ngày tải lên: 20/03/2014, 13:08
Tài liệu Management Information Systems A Synthesis of Transit Practice ppt
... local area network (LAN) installation and in the current general ledger reorganization. (7) Acquire a database management system to assist overall data integration. The standard for a relational ... sophisticated applications in at least one of the four management and operational areas under consideration (i.e., administration, planning and operations, materials management, and advanced...
Ngày tải lên: 18/02/2014, 11:20