Gas sensing performance of Sol-gel grown NiO-doped Cr2O3 nanoparticles

Tunis B. Hassan

doi:10.30723/ijp.v16i37.72

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Publication Date

Tue Sep 11 2018

Journal Name

Iraqi Journal Of Physics

Volume

16

Issue Number

37

DOI

10.30723/ijp.v16i37.72

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Gas sensing performance of Sol-gel grown NiO-doped Cr2O3 nanoparticles

Sol-gel

gas sensor

NiO doped Cr2O3 nanoparticles.

Tunis B. Hassan

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The sensors based on Nickel oxide doped chromic oxide (NiO: Cr2O3) nanoparticals were fabricated using thick-film screen printing of sol-gel grown powders. The structural, morphological investigations were carried out using XRD, AFM, and FESEM. Furthermore, the gas responsivity were evaluated towards the NH3 and NO2 gas. The NiO0.10: Cr2O3 nanoparticles exhibited excellent response of 95 % at 100oC and better selectivity towards NH3 with low response and recovery time as compared to pure Cr2O3 and can stand as reliable sensor element for NH3 sensor related applications.

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Publication Date

Tue Mar 17 2020

Journal Name

Optical And Quantum Electronics

Photocatalytic activity of Ag-doped TiO2 nanostructures synthesized by DC reactive magnetron co-sputtering technique

E Adnan

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(24)

(5)

Publication Date

Mon Feb 04 2019

Journal Name

Iraqi Journal Of Physics

Structural and photoluminescence properties of CdO doped TiO2 thin films prepared by pulsed laser deposition

TiO2:CdO Thin Film

structural properties

photoluminescence (PL) properties pulse laser deposition technique.

Ghusson H.

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TiO2 thin films have been deposited at different concentration of
CdO of (x= 0.0, 0.05, 0.1, 0.15 and 0.2) Wt. % onto glass substrates
by pulsed laser deposition technique (PLD) using Nd-YAG laser
with λ=1064nm, energy=800mJ and number of shots=500. The
thickness of the film was 200nm. The films were annealed to
different annealing (423 and 523) k. The effect of annealing
temperatures and concentration of CdO on the structural and
photoluminescence (PL) properties were investigated. X-ray
diffraction (XRD) results reveals that the deposited TiO2(1-x)CdOx
thin films were polycrystalline with tetragonal structure and many
peaks were appeared at (110), (101), (111) and (211) planes with
preferred orientatio

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Publication Date

Sun Jun 12 2011

Journal Name

Baghdad Science Journal

Study the effective of annealing on the structural and sensitivity properties for SnO2 thin films to CO2 Gas

thin film

SnO2

CO2 gas sensor

Afrah.A

Abdul-Hussain K

Ashwaq. A.

Resoul H

Morooj .A.

Karameh. A.muhmmad

Frah. GH

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In this research thin films from SnO2 semiconductor have been prepared by using chemical pyrolysis spray method from solution SnCl2.2H2O at 0.125M concentration on glass at substrate temperature (723K ).Annealing was preformed for prepared thin film at (823K) temperature. The structural and sensing properties of SnO2 thin films for CO2 gas was studied before and after annealing ,as well as we studied the effect temperature annealing on grain size for prepared thin films .

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Publication Date

Thu Jan 01 2015

Journal Name

International Journal Of Advanced Research

UV Photovoltaic detector based on Bi doped TiO2 Fabricated by Pulse Laser Deposition

Abdullah

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Pure and doped TiO 2 with Bi films are obtained by pulse laser deposition technique at RT under vacume 10-3 mbar, and the influence of Bi content on the photocvoltaic properties of TiO 2 hetrojunctions is studied. All the films display photovoltaic in the near visible region. A broad double peaks are observed around λ= 300nm for pure TiO 2 at RT in the spectral response of the photocurrent, which corresponds approximately to the absorption edge and this peak shift to higher wavelength (600 nm) when Bi content increase by 7% then decrease by 9%. The result is confirmed with the decreasing of the energy gap in optical properties. Also, the increasing is due to an increase in the amount of Bi content, and shifted to 400nm when annealed at 523

Publication Date

Sun Jul 01 2018

Journal Name

Materials Letters

Temperature stable electric field-induced strain in Er-doped BNT-BT-BKT ceramics

Zaid Waadulla

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(19)

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Publication Date

Mon Sep 14 2015

Journal Name

Spe North Africa Technical Conference And Exhibition

Feasibility of Gas Lift to Increase Oil Production in an Iraqi Giant Oil Field

production monitoring

optimization problem

gas Lift Design

artificial lift system

Artificial Intelligence

Reservoir Surveillance

Upstream Oil & Gas

gas lift

flow rate

correlation

O. F.

M..

K. A.

A. A.

Dhifaf Jaafar

A. J.

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Abstract<p>Gas lift is one of the artificial lift techniques which it is frequently implemented to raise oil production. Conventionally, the oil wells produce depending on the energy of reservoir pressure and solution gas which declines due to continuous production. Therefore, many oil wells after a certain production time become unable to lift oil to the surface. Thus, the continuity of production requires implementation of gas lift which works to decrease the average fluid density in the tubing by injection gas through the annulus into the tubing. This paper aims to get maximum oil production of an Iraqi giant oil field at optimum injected gas rate. The field is located in south of Iraq and in</p> ... Show More

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Publication Date

Fri Jan 01 2016

Journal Name

Journal Of Engineering

Some Properties of Polymer Modified Self-Compacting Concrete Exposed to Kerosene and Gas Oil

polymer

self-compacting

kerosene

gas oil.

Nada Mahdi

Aqeel Kareem

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This thesis aims to study the effect of addition polymer materials on mechanical properties of self-compacting concrete, and also to assess the influence of petroleum products (kerosene and gas oil) on mechanical properties of polymer modified self-compacting concrete (PMSCC) after different exposure periods of (30 ,60 ,90 ,and 180 days).

Two type of curing are used; 28 days in water for SCC and 2 days in water followed 26 days in air for PMSCC.

The test results show that the PMSCC (15% P/C ratio) which is exposed to oil products recorded a lower deterioration in compressive strength's values than reference concrete. The percentages of reduction in compressive strength values of PMSCC (15% P/C ratio) was

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Publication Date

Mon May 04 2020

Journal Name

Offshore Technology Conference

Hydrate Equilibrium Model for Gas Mixtures Containing Methane, Nitrogen and Carbon Dioxide

gas hydrate

cavity

equilibrium condition

flow assurance

modeling & simulation

hydrate equilibrium condition

upstream oil & gas

cage occupancy

hydrate

gas mixture

Dhifaf Jaafar

Omar

Stefan

Maxim

Callum

Ahmed

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Abstract<p>Gas hydrate formation is considered one of the major problems facing the oil and gas industry as it poses a significant threat to the production, transportation and processing of natural gas. These solid structures can nucleate and agglomerate gradually so that a large cluster of hydrate is formed, which can clog flow lines, chokes, valves, and other production facilities. Thus, an accurate predictive model is necessary for designing natural gas production systems at safe operating conditions and mitigating the issues induced by the formation of hydrates. In this context, a thermodynamic model for gas hydrate equilibrium conditions and cage occupancies of N2 + CH4 and N2 + CO4 gas mix</p> ... Show More

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(7)

Publication Date

Sun Jan 01 2023

Journal Name

Journal Of Advanced Pharmacy Education And Research

Pharmacokinetic parameters of ondansetron in rats after oral solution and transdermal invasomes gel: A comparison study

Omar Saeb

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Publication Date

Fri Oct 01 2021

Journal Name

International Journal Of Drug Delivery Technology

Formulation and In-vitro Evaluation of Thermosensitive Ciprofloxacin HCL In-situ Gel for Local Nasal Infection

Omar Saeb

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(12)

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