mixed sno2 tio2 included with carbon nanotubes for gas-sensing application

... Mixed SnO 2 /TiO 2 included with carbon nanotubes for gas-sensing application Nguyen Van Duy a , Nguyen Van Hieu b,c, Ã , Pham Thanh ... candidate of gas-sensing applications [15–17]. For the gas-sensing materials, there are various approaches using CNTs as the solution such as CNTs for dispersion, CNTs for composite, CNTs for filling, ... of three kinds of material...

Ngày tải lên: 20/03/2014, 13:04

... 2008 Keywords: Carbon nanotubes Ethanol Conductance Gas sensor Adsorption Surface modification Carbon nanotubes (CNTs) have been fabricated by microwave plasma-enhanced chemical vapor deposition for detecting ... wall carbon nanotubes (SWCNTs). Polypyrrole (Ppy) was prepared by a simple and straightforward in-situ chemical polymerization of pyrrole mixed with SWCNTs, and the...

Ngày tải lên: 20/03/2014, 13:06

... JetFirst, at 450 °C for 1 h with heating and cooling rate of 30 °C min À1 to form an anatase structure [17]. For WO 3 nanocrystallite deposition, WCl 6 (Aldrich 99.9%) in powder form was dissolved ... atmosphere. Therefore, a fresh solution was used for each new experiment. In order to preserve the solutions and minimize contact with air, vials with septa and syringe are used for...

Ngày tải lên: 19/03/2014, 16:47

... Multi-walled carbon nanotubes (MWCNTs) wereaddedto hexagonal WO 3 nanopow- der with the aim to further lower the operating temperature of sensors [11]. The carbon nanotubes were decorated with metal- lic ... were fabricated by embedding a low amount of carbon nanotubes into the hex-WO 3 matrix. Metallic nanoclusters (Ag, Au) were added to the carbon nanotubes for improvi...

Ngày tải lên: 20/03/2014, 13:05

... Multiwall Carbon Nanotubes, ” Carbon, 40 (2002) 1123. 73. P. M. Ajayan, Nanotubes from Carbon, ” Chemical Reviews, 99 (1999) 1787. 74. C. N. R. Rao, B. C. Satishkumar, A. Govindaraj, M. Nath, Nanotubes, ” ... nanocoated carbon nanotubes 66 3-18. Photocatalytic dye degradation by anatase nanocoated carbon nanotubes with visible light irradiation 68 3-19. Post UV-A dye d...

Ngày tải lên: 20/03/2014, 13:06

... seamless tubes with nanometric diameters with outstanding electronic, chemical and physical properties, in such a way that the design of carbon hybrid materials with potential applications as ... nanoarchitectures with advanced properties for achieving high-performance sensing [1–4], improved photocatalytic power [5,6], and superior photovoltaic results [7,8]. Similarly, carbon...

Ngày tải lên: 20/03/2014, 13:07

... functional- ized with PANI (MWCNTs-f-PANI) and noble metal (Au and Ag) nanoparticles. Firstly, MWCNTs-f-PANI was prepared. For this we modified the carbon nanotubes (MWCNTs-COCl) with DABSA via ... Introduction The discovery of carbon nanotubes (CNTs) by Iijima in 1991 has attracted scientific and technological interest worldwide. Both multi-walled and single-walled carbon nano...

Ngày tải lên: 05/05/2014, 15:26

... follow-up, but with limited sensitivity (30-40%) for early CRC diagnosis [9]. It should be noted that none of these existed serum markers could be used individually for screening for CRC with suf- ficient ... capability for high throughput screening, even for proteins with extreme characteristics (highly hydro- phobic, acidic or basic). In this technique, whole se- rum wa...

Ngày tải lên: 25/10/2012, 11:18

... assay was performed. Autologous EB-virus trans- formed B-lymphoblastoid cell line (B-LCL) cells pulsed with WT1 peptides were labeled with 10 μM CFSE, and were used as target cells for the cytotoxic- ity ... combination with imatinib therapy for a CML patient. A 51 year-old male with CML in CP, who showed a resistance against imatinib therapy for 2.5 years, began to be trea...

Ngày tải lên: 26/10/2012, 09:39

... Note:Cách dùng SINCE và FOR: - For + a period of time (FOR + khoảng thời gian:) For two hours/a week/20 minutes/50 years/five days/a long time/six months/ages He has worked here for a year. (He began ... Topic4: MY NEIGHBORHOOD PERIOD 14. PRESENT PERFECT WITH SINCE AND FOR A. Revision: The Present Perfect Tense 1. Form - Affirmative: S + has/have +V3/ed…. - Negative: S + h...

Ngày tải lên: 08/07/2013, 01:27