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

Tunis B. Hassan

doi:10.30723/ijp.v16i37.72

Details

Publication Date

Tue Sep 11 2018

Journal Name

Iraqi Journal Of Physics

Volume

16

Issue Number

37

DOI

10.30723/ijp.v16i37.72

Choose Citation Style

Statistics

View publication

4

Abstract Views

744

Galley Views

452

Statistics

(2)

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

Sol-gel

gas sensor

NiO doped Cr2O3 nanoparticles.

Tunis B. Hassan

...Show More Authors

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.

View Publication Preview PDF

Quick Preview PDF

Publication Date

Sat Oct 01 2022

Journal Name

Environmental Advances

Stability and performance studies of emulsion liquid membrane on pesticides removal using mixture of Fe3O4Â nanoparticles and span80

The current study investigated the impact of nonionic surfactant span 80 in the existence of Fe3O4 magnetic nanoparticles on the emulsification of mixture of kerosene as petroleum based organic solvents and corn oil as a green diluent in the ratio 1:1

HCl was used as internal phase and the stability of the emulsion was carried out. The proposed Pickering emulsion liquid membrane has been exploited to investigate it is ability in the extraction of Abamectin pesticides from aqueous solution without utilizing carrier agent. Further

the effects of experimental parameters on extraction efficiency and emulsion stability such as

homogenizer speed

emulsification speed

contact time

Fe3O4-Span 80 ratios

HCL concentration

internal to membrane volume ratio (I/O) and pH of the external feed solution were carried out. The results showed that more than 99% of Abamectin could be extracted at 10 min contact time with a minimum breakage percent of 0.52% at the optimal conditions. The kinetic of the extraction were studied and the mass transfer coefficient was found to be for external phase () of 1.2

interfacial reaction rate constant () of 5.83 and the overall mass transfer coefficient () of 3.91 . The results of recyclability of the PELM revealed that the emulsion stability and extraction efficiency was nearly unchanged after three cycles.

Ahmed A.

Noor Q.

...Show More Authors

View Publication Preview PDF

(17)

(15)

Publication Date

Thu Nov 01 2018

Journal Name

Curtin University

Gas hydrates investigation: flow assurance for gas production and effects on hydrate-bearing sediments

Gas hydrates

flow assurance

gas production

CO2 hydrate distribution

hydrate-bearing sediments

Dhifaf Jaafar

...Show More Authors

This thesis was aimed to study gas hydrates in terms of their equilibrium conditions in bulk and their effects on sedimentary rocks. The hydrate equilibrium measurements for different gas mixtures containing CH4, CO2 and N2 were determined experimentally using the PVT sapphire cell equipment. We imaged CO2 hydrate distribution in sandstone, and investigated the hydrate morphology and cluster characteristics via μCT. Moreover, the effect of hydrate formation on the P-wave velocities of sandstone was investigated experimentally.

Preview PDF

Publication Date

Thu Apr 21 2016

Journal Name

Australian Journal Of Basic And Applied Sciences

Sensing Properties of (In2O3:Eu) Thin Films

1Bushra A.

Jamal. M.

Iftikhar. M.

...Show More Authors

Thin films of iridium doped indium oxide (In2O3:Eu)with different doping ratio(0,3,5,7,and 9%) are prepared on glass and single crystal silicon wafer substrates using spray pyrolysis method. The goal of this research is to investigate the effect of doping ratio on of the structural, optical and sensing properties . The structure of the prepared thin films was characterized at room temperature using X-ray diffraction. The results showed that all the undoped and doped (In2O3:Eu)samples are polycrystalline in structure and nearly stoichiometric. UV-visible spectrophotometer in the wavelength range (200-1100nm)was used to determine the optical energy gap and optical constants. The optical transmittance of 83% and the optical band gap of 5.2eV

Publication Date

Sun Oct 31 2021

Journal Name

Iraqi Geological Journal

Estimate Gas Initially in Place of Tight Gas Reservoirs Based on Developed Methodology of Dynamic Material Balance Technique

Gas

Reservoir

Hydrocarbons

Pressure

Permeability

Omar

...Show More Authors

With growing global demand for hydrocarbons and decreasing conventional reserves, the gas industry is shifting its focus in the direction of unconventional reservoirs. Tight gas reservoirs have typically been deemed uneconomical due to their low permeability which is understood to be below 0.1mD, requiring advanced drilling techniques and stimulation to enhance hydrocarbons. However, the first step in determining the economic viability of the reservoir is to see how much gas is initially in place. Numerical simulation has been regarded across the industry as the most accurate form of gas estimation, however, is extremely costly and time consuming. The aim of this study is to provide a framework for a simple analytical method to esti

Preview PDF

(5)

(1)

Publication Date

Thu Mar 31 2022

Journal Name

Iraqi Geological Journal

Geological Model of the Khabour Reservoir for Studying the Gas Condensate Blockage Effect on Gas Production, Akkas Gas Field, Western Iraq

Husam

Jalal A.

Omar

...Show More Authors

The Khabour reservoir, Ordovician, Lower Paleozoic, Akkas gas field which is considered one of the main sandstone reservoirs in the west of Iraq. Researchers face difficulties in recognizing sandstone reservoirs since they are virtually always tight and heterogeneous. This paper is associated with the geological modeling of a gas-bearing reservoir that containing condensate appears while production when bottom hole pressure declines below the dew point. By defining the lithology and evaluating the petrophysical parameters of this complicated reservoir, a geological model for the reservoir is being built by using CMG BUILDER software (GEM tool) to create a static model. The petrophysical properties of a reservoir were computed using

(4)

Publication Date

Fri May 11 2018

Journal Name

Nanotechnology

Doped bottom-contact organic field-effect transistors

Akram

...Show More Authors

View Publication

(8)

(7)

Publication Date

Thu Dec 01 2016

Journal Name

Organic Electronics

Charge trapping in doped organic Zener diodes

Akram

...Show More Authors

View Publication

(4)

Publication Date

Wed Nov 16 2016

Journal Name

Acs Applied Materials & Interfaces

Minority Currents in n-Doped Organic Transistors

Akram

...Show More Authors

View Publication

(14)

(12)

Publication Date

Sun Mar 30 2003

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Reduction of Aromatic Content from Hexane by Silica Gel

Adil A.

Rabih

...Show More Authors

View Publication Preview PDF

Publication Date

Fri Nov 01 2013

Journal Name

American Journal Of Dermatology And Venereology

Topical Adapalene 0.1% Gel versus Topical Combination of (Tretinoin 0.025% and Erythromycin 4%) Gel in Treatment of AcneVulgaris (A Split Face Comparative Study)

Adil A Noaimi

...Show More Authors

HR Al-Hamamy, AA Noaimi, HA Salman, NAA Jabbar, American Journal of Dermatology and Venereology, 2013

View Publication

1 2 ... 14 15 16 17 ... 2402 2403