stability of anodic aluminum oxide membranes with nanopores

... 440–444 www.elsevier.com/locate/pla Stability of anodic aluminum oxide membranes with nanopores S.G. Yang a,∗ ,T.Li a ,L.S.Huang a ,T.Tang a , J.R. Zhang a ,B.X.Gu a ,Y.W.Du a , S.Z. Shi b ,Y.N.Lu b a National Laboratory of ... September 2003; accepted 22 September 2003 Communicated by R. Wu Abstract The anodic aluminum oxide membranes (AAOMs) with nanopores, prod...

Ngày tải lên: 20/03/2014, 13:08

... hierarchical system with controllable morphology and composition. KEYWORDS Anodic aluminum oxide, serrated channel, plastic deformation H ighly ordered porous anodic aluminum oxide (AAO) has been ... self-assemble porous anodic aluminum oxide membranes with serrated nanochannels by anodizing in phosphoric acid solution. Due to high field conduction and anionic incorporat...

Ngày tải lên: 05/05/2014, 15:28

... applications. Experimental Section Anodic aluminum oxide (AAO) membranes with hexagonally ordered arraysof nanopores wereprepared byatwo-step anodization procedure as described previously. 1 Aluminum sheets (Alfa ... ordered arrays of nanopores was then obtained by selectively etching away the unreacted Al in a saturated HgCl 2 solution. A U-shapedaluminum oxidelayeror barri...

Ngày tải lên: 19/03/2014, 16:47

... Measurement of the pore sizes for anodic aluminum oxide (AAO) D.H. Choi a , P.S. Lee b , W. Hwang a, * , K.H. Lee b , H.C. Park a a Department of Mechanical Engineering, Pohang University of Science ... 2006 Abstract A new method for the measurement of pore size of the porous-type anodic aluminum oxide (AAO) using atomic force microscopy (AFM) is proposed. The measuremen...

Ngày tải lên: 20/03/2014, 13:04

... First, the efficiency of charge collection of NT films has been proved to be much better than that of NP films because of the 1D nature of the former with a much smaller rate of charge recombination; 16 this intrinsic ... removed with ultrasonic vibration of the ATO films in deionized water containing a small proportion of Al 2 O 3 particles of average size 300 nm. Parts a a...

Ngày tải lên: 19/03/2014, 16:48

... formation of the oxide/ hydroxide layer. The hydroxide at the oxide/ hydroxide interface decomposes by losing protons continuously to form titanium oxide. The thicknesses of both the oxide and hydroxide ... electrolyte /oxide interface to the oxide/ Ti interface to form Ti oxide or Ti hydroxide, the amount of oxide anions is just enough to form a new layer at the pore bottom...

Ngày tải lên: 19/03/2014, 16:48

... EDX profile of bundles synthesized at concentration of 0.007M. Fig. 2 – (a) TEM and (b) HRTEM images of bundled tungsten oxide nanowires synthesized at a concentration of 0.003 M; (c) TEM of bundled ... W 18 O 49 with the strongest intensity of (010) plane, indicating that the growth direction of nanowires remained unchanged with increasing concentration. It has been repor...

Ngày tải lên: 20/03/2014, 13:08

... membranes composed of anionic [18] or zwitterionic phospholipids [13] has been shown. An analysis of redistribution of the intensities within powder type 31 P-NMR spectra of MLV as a result of ... CTs interact with membranes by a combination of electrostatic and hydrophobic forces [5]. In this respect the interaction of CTII with negatively charged membranes is similar...

Ngày tải lên: 17/03/2014, 03:20

... function of operating temperature of the PtO 2 -doped SnO 2 sensors with varying PtO 2 doping content. Please cite this article in press as: N. Van Hieu, et al., Gas-sensing properties of tin oxide ... Thestepwise decrease of the electrical resistance of the film is very consistent with an increas- ing amount of ethanol oxidation. Greater ethanol oxidation caused the introduc...

Ngày tải lên: 19/03/2014, 16:48

... ther- mal stability of the homologous FUs of b-hemocyanin of H. pomatia and considered the role of the degree of glycosylation and the secondary structure variability on the observed differences in stability. Results The ... visually, assuming the steepest part of the curve reflects the global unfolding of HpH-h. Discussion The thermal stability of the eight FUs of b-Hp...

Ngày tải lên: 30/03/2014, 04:20