Báo cáo hóa học: " Facile Fabrication of Ultrafine Hollow Silica and Magnetic Hollow Silica Nanoparticles by a Dual-Templating Approach" pdf

... electronic, and catalytic properties [1–3]. In the last two decades, a sub- stantial body of research has been directed toward the synthesis and application of Au and Ag nanoparticles. Brilliant achievements ... Cu nanoparticles so far obtained via the chemical reduction tactics are mostly located in the range of 10–50 nm, and H X. Zhang Á W B. Cai (&) Shanghai Key Lab...

Ngày tải lên: 22/06/2014, 00:20

... low-cost way to fabricate ultrafine hollow silica NPs and magnetic hol- low silica NPs using CTAB and AOT as co-templates. The magnetic hollow silica NPs possesses a larger surface area, and much narrower ... process of ultrafine hollow and magnetic hollow SiO 2 NPs Nanoscale Res Lett (2010) 5:116–123 117 123 NANO EXPRESS Facile Fabrication of Ultrafine...

Ngày tải lên: 22/06/2014, 00:20

... pattern. (a) Stamped letter “S”.(b) Interface of the stamped and unstamped area of the nano- needle array. (c) Contact angle of the stamped area. (d) Contact angle of the unstamped area with nano-needles. Kim ... formationfromhoneycombfilm. (a) Schematic diagram of process of fabricating a nano-needle array. (b)AFM topographical images of a honeycomb film and a nano-ne...

Ngày tải lên: 20/06/2014, 23:20

... CC carried out the experiment and drafted the manuscript. MW and JC participated in some of the characterizations and performed the data analysis. All authors read and approved the final manuscript. Competing ... were determined by the internal standard method using methylbenzene as a n internalstandard.Theconcentra- tion of CHHP was determined by iodometric titration, and...

Ngày tải lên: 20/06/2014, 22:20

... Li metal foil as the negative electrode, operating at 0.3 mV/s. Clear cathodic and anodic peaks appeared at approximately 1.46 and 1.7 V, respectively, for the Li intercalation/deintercalation, ... C. At a rate of 20 C, the capacity of the nano-Li 4 Ti 5 O 12 powders was still high: 112 mAh g −1 . This outstanding performance at high rates was much better than that afforded by...

Ngày tải lên: 20/06/2014, 23:20

... nanofluids. In Handbook of Nanophysics: Nanoparticles and Quantum Dots. Volume Chapter 33. Edited by: Sattler K. Taylor 2010:33-1. 10. Prasher R, Phelan PE, Bhattacharya P: Effect of aggregation kinetics ... isthevolumefractionofthes-phase. h and a υ come from modeling of t he interfacial flux and are the film heat transfer coefficient and the interfacial area per unit volu...

Ngày tải lên: 21/06/2014, 05:20

... experiments and analyzed the data. YK, and SJ analyzed the data and discussed the analysis. YK, and SJ designed the experiments. YK and SJ wrote the manuscript. All authors read and approved the final ... an approach using fatty acids and a mixture of fatty acids and amines and applying a non-coordinating solvent, 1-octadecene [ODE] [5-8]. This method provided a f...

Ngày tải lên: 21/06/2014, 17:20

... surface area of thin film can be derived from the double layer capacitance by fitting EIS using equivalent circuit. The calculated surface areas of the sample A and the sample B are about 414 and ... MnO 2 materials. At the highest scan rate of 200 mV s -1 , the sample A can maintain 66% of its full capacitance (we set the specific capacitance at 20 mV s -1 as the full capacita...

Ngày tải lên: 21/06/2014, 20:20

... years, significant progress has been made in the design and fabrication of polymeric micro- and nanocap- sules, which have attracted great attention because of a variety of applications such as ... formed large aggregates due to van der Vaals interparticle attraction and the aggregation was kept somehow during the preparation of the function- alized silica nanoparticles a...

Ngày tải lên: 22/06/2014, 00:20

... are approximately 60–120 nm, with an average value of about 90 nm. Furthermore, it can also be found that nanoparticles are attached at the ends of nanotubes, which could be regarded as a typical ... 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) SEM i...

Ngày tải lên: 22/06/2014, 00:20