Transition metal oxide based nanaostructures as supercapacitor electrodes

... highperformance supercapacitors In the thesis work, transition- metal- oxide- based nanostructures, manganese dioxide nanostructures, ruthenium oxide nanotubes, as well as composite materials consisting of transition ... application as a supercapacitor electrode 2.2.3 Transition- metal- oxide- based materials A number of transition metal oxides with various oxidation...

Ngày tải lên: 09/09/2015, 18:57

... Properties and characteristics of various carbon and carbon- based materials as supercapacitors electrodes Table 3.1 Reagents used for synthesis of carbon- based materials Table 3.2 Apparatus Table 4.1 ... capacitive performance of various carbon- based electrodes and the most commonly studied pseudo-capacitive materials in the literature are shown in Table 1.1 Carbon-...

Ngày tải lên: 11/09/2015, 09:18

... TRANSITION METAL OXIDES NANOSTRUCTURES: SHAPE CONTROLLED SYNTHESIS, CHARACTERIZATIONS AND STUDIES OF PHYSICAL PROPERTIES BINNI VARGHESE (M Sc.) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF ... emission properties of various metal oxide nanostructure arrays Nanostructures of zinc oxides, 29 Chapter Introduction to Metal Oxide Nanostructures molybd...

Ngày tải lên: 14/09/2015, 14:11

... means of additional indicators Indeed, the results of a number of recent physical investigations on ligand - stabilized transition metal clusters, which a metal nanoparticles consisting of a defined ... the doping case considered in the last section Recombination and binding energies of the excitons confined in silicon nanocrystallites are calculated within the effecti...

Ngày tải lên: 25/03/2015, 11:58

... BINARY METAL OXIDE AND POLYMER BASED LIQUID REPELLENT SELF- CLEANING SURFACES ANAND GANESH VENKATESAN (B Eng.) Anna University, Chennai ... research are as follows:  Investigate binary metal oxides and polymer based material systems that are suitable for the fabrication of liquid repellent self- cleaning surfaces by electrospinning/electrospraying ......

Ngày tải lên: 09/09/2015, 11:14

... IONP@PC and IONP@mC-600 Insets of C and F: SAED patterns of IONP@PC and IONP@mC-600 95 Figure 6-4: Particle size distributions of (A) IONP@PC and (B) IONP@mC-600 96 Figure 6-5 TEM images of IONP@mC-600 ... iron oxides and lithium was in the 1980s.[51] However, the nature of the reaction was not clear until J M Tarascon and his coworkers reported the conversion reaction...

Ngày tải lên: 10/09/2015, 09:30

... Polarisation 15 2.3 High Electron Mobility Transistor 17 2.4 Metal- Oxide- Semiconductor High Electron Mobility Transistor 18 Chapter Device Fabrication and Characterisation 3.1 Mask Design 21 21 3.1.1 ... Field Effect Transistor MODFET Modulation Doped Field Effect Transistor HEMT High Electron Mobility Transistor MOSFET Metal- Oxide- Semiconductor Field...

Ngày tải lên: 03/10/2015, 20:31

... Polarisation 15 2.3 High Electron Mobility Transistor 17 2.4 Metal- Oxide- Semiconductor High Electron Mobility Transistor 18 Chapter Device Fabrication and Characterisation 3.1 Mask Design 21 21 3.1.1 ... Field Effect Transistor MODFET Modulation Doped Field Effect Transistor HEMT High Electron Mobility Transistor MOSFET Metal- Oxide- Semiconductor Field...

Ngày tải lên: 12/10/2015, 17:36

... properties of metal oxides (4, 12–14) Chemical and biological sensors having nanostructured metal oxides and especially metal- oxide nanowires benefit from the comprehensive understanding that exists ... direction, one can expect to see the onset of progressively more significant quantum effects (32) Surface Reactions on One- Dimensional Oxides, Gas Sensing, and Catalysis...

Ngày tải lên: 19/03/2014, 16:47

... the bulk of the grain becomes comparable with the number of surface collisions; the latter may be influenced by Conduction Model of Metal Oxide Gas Sensors 147 Fig Schematic representation of compact ... applicability of the formula to cases where, even with exposure to reducing gases, the band bending remains Conduction Model of Metal Oxide Gas Sensors 157...

Ngày tải lên: 19/03/2014, 16:47

... nanostructured metal oxides for gas sensing applications Please cite this article in press as: M.C Carotta, et al., Ethanol interference in light alkane sensing by metal-oxide solid solutions, Sens Actuators ... C2–C4 alkanes and 10 ppm of C2 H6 O at 650 ◦ C under wet conditions Please cite this article in press as: M.C Carotta, et al., Ethanol interference in...

Ngày tải lên: 19/03/2014, 16:48

... surface of metal oxide grains and at the interface of metal oxide grains and MWCNTs, respectively is postulated as the mechanism that could explain the enhanced performance of hybrid metal oxide/ MWCNT ... NO2 Therefore, sensor responsiveness heavily depends on the amount of MWCNTs dispersed on the metal oxide matrix Sensors based on TiO2 and carbon nanotubes (samples...

Ngày tải lên: 19/03/2014, 16:48

... could be formed during the process of interruption The prolongation of film growth on the “extra” interface involves a new nucleation of the metal oxide film, the formation and growth of a film ... of the sensors heavily depend on the conditions and methods used in their preparation [27–31] Since grain size is one of the key factors to enhance the gas sensing properties of...

Ngày tải lên: 20/03/2014, 13:05

... oxidizing gas) exposure (see Fig 4b) Fig TEM images of hexagonal WO3 with Au decorated MWCNTs (a) TEM image of hexagonal WO3 nanograins and MWCNTs, and (b) detail of Au decorated carbon nanotubes ... At first, the gas sensing properties of hex -WO3 were investigated Fig 4a shows the response of a hex -WO3 sensor to increasing concentration of NO2 This result was reco...

Ngày tải lên: 20/03/2014, 13:05

... nano-optoelectronic devices Applications of metal oxide nanostructures 6.1 Metal oxide gas sensors Metal oxides semiconductors are normally high gap metal oxides in which the semiconducting behavior ... is nowadays producing sensing materials such as quasi- 1D metal oxides (MOX), carbon nanotubes, and nano porous materials In particular, metal oxides are an attractive and h...

Ngày tải lên: 20/03/2014, 13:06