Low level NO gas sensing properties of Cu doped ZnO thin films prepared by SILAR method

Date

2018-02-01

Author

Corlu, T.
Karaduman, I.
Galioglu, S.
Akata Kurç, Burcu
YILDIRIM, MEMET ALİ
ATEŞ, AYTÜNÇ
ACAR, SELİM

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

135
views

0
downloads

We report the successful synthesis and characterization of Zn1-xCuxO (x = 0.05, 0.10, 0.15, 0.20) thin films prepared by a simple and facile Successive Ionic Layer Adsorption and Reaction (SILAR) method. The nitrogen monoxide (NO) gas sensing properties of the Zn1-xCuxO sensors were studied systematically. The sensors were proved to have acceptable responses towards 20 ppb NO gas. Zn0.90Cu0.10O exhibited improved sensing performance at operating temperature of 55 degrees C compared to other samples. To improve sensor selectivity, a molecular zeolite filter was coated on the Zn0.90Cu0.10O sensor. The gas sensing results showed that the selectivity of intergrown zeolite filter coated Zn0.90Cu0.10O sensor enhanced significantly compared to uncoated sensors. (C)

Subject Keywords

Gas sensor, SILAR method

URI

https://hdl.handle.net/11511/31613

Journal

MATERIALS LETTERS

DOI

https://doi.org/10.1016/j.matlet.2017.10.121

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Direct gas-phase epoxidation of propylene to propylene oxide through radical reactions: A theoretical study Kizilkaya, Ali Can; Fellah, Mehmet Ferdi; Önal, Işık (2010-03-05) The gas-phase radical chain reactions which utilize O-2 as the oxidant to produce propylene oxide (PO) are investigated through theoretical calculations. The transition states and energy profiles were obtained for each path. The rate constants were also calculated. The energetics for the competing pathways indicate that PO can be formed selectively due to its relatively low activation barrier (9.3 kcal/mol) which is in a good agreement with the experimental value (11 kcal/mol) of gas-phase propylene epoxida...
SENSITIVITY OF RADIATION MODELING TO PROPERTY ESTIMATION TECHNIQUES IN THE FREEBOARD OF LIGNITE- FIRED BUBBLING FLUIDIZED BED COMBUSTORS ( BFBCs) Ozen, G.; Selçuk, Nevin (2014-05-04) Predictive accuracy and computationally efficiency of method of lines (MOL) solution of the discrete ordinate method (DOM) coupled with different radiative property estimation techniques (GG, SLW, SNBCK) are assessed by applying them to the prediction of incident radiative fluxes along the freeboard walls of a 0.3 MWt atmospheric bubbling fluidized bed combustor (ABFBC) and comparing their predictions with measurements generated previously from two runs one without and the other with recycle. Freeboard is t...
Stereocontrolled 1,3-dipolar cycloadditions using Oppolzer's camphor sultam as the chiral auxiliary for carbonyl stabilized azomethine ylides Garner, Philip; Doğan, Özdemir; Youngs, Wiley; Vance, Kennedy; Protasiewicz, John; Zaniewski, Rebecca (2001-01-01) Two complementary approaches to substituted pyrrolidines via stereocontrolled 1,3-dipolar cycloaddition reactions of chiral azomethine ylides are described. In one approach, chiral azomethine ylides were generated by thermolysis of aziridine carboxylate sultams and trapped with a variety of dipolarophiles to give good yields of the corresponding cycloadducts. In the second approach, chiral azomethine ylides were generated from glycyl sultams by 'imine tautomerization' and trapped with dipolarophiles to give...
Dynamic analysis of beams with breathing crack using finite element method Özkan, Berkay; Kadıoğlu, Fevzi Suat; Department of Mechanical Engineering (2017) Non-linear dynamic characteristics of a beam with a breathing crack are investigated using finite element method. This thesis has two main objectives: (1) to obtain a foresight for the vibration based crack detection by using finite element method (2) to investigate the effects of crack location, crack depth, excitation frequency, excitation amplitude and boundary conditions on the indications of crack presence. Two dimensional finite element approach is used to model a square cross sectional beam subjected...
Dimethyl ether from syngas and effect of CO2 sorption on product distribution over a new bifunctional catalyst pair containing STA@SBA-15 ÇELİK ÖZCAN, MERVE; PEKMEZCİ KARAMAN, BİRCE; OKTAR, NURAY; Doğu, Timur (2022-12-01) Direct synthesis of dimethyl ether (DME) from syngas was investigated in the presence of a bifunctional catalyst pair containing silicotungstic acid (STA) incorporated SBA-15 (5, 10, 25% by wt. STA) for the in-situ dehydration of synthesized methanol. The methanol synthesis component of this catalyst mixture is a Cu/ZnO-based commercial (HF) catalytic material. The new STA@SBA-15 type solid acid catalysts synthesized in this study indicated ordered mesoporous structures with surface area values in the range...

Citation Formats

T. Corlu et al., “Low level NO gas sensing properties of Cu doped ZnO thin films prepared by SILAR method,” MATERIALS LETTERS, pp. 292–295, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31613.