Search
Now showing items 11-20 of 26
One-Pot Tandem Ring-Opening and Ring-Closing Metathesis Polymerization of Disubstituted Cyclopentenes Featuring a Terminal Alkyne Functionality
(
American Chemical Society
, 2020 , Article)
Tandem metathesis polymerization of terminal alkynes with a small functional ring-size cycloalkene remains a challenge. A series of 1-propargyl-1′-carboxylate ester monomers M1-M4 derived from 3-cyclopentene initiated by ...
Effective and stable FeNi@ N-doped graphene counter electrode for enhanced performance dye sensitized solar cells
(
Elsevier
, 2017 , Article)
N-doped FeNi@graphene is introduced as effective and stable non-precious counter electrode for the dye sensitized solar cells. After preparation of graphene oxide using the chemical route, the obtained product has been ...
Synthesis and Physicochemical Studies of Perovskite Manganite La0.8Ca0.2Nn1−xCoxO3 (0 ≤ x ≤ 0.3)
(
The Korean Magnetics Society
, 2017 , Article)
The physicochemical properties of La0.8Ca0.2Mn1−xCoxO3 nanopowders as a function of Co content (x) have
been investigated. La0.8Ca0.2Mn1−xCoxO3 nanopowders were synthesized by sol-gel method and morphologically
and ...
Synthesis of thioether-functional poly(olefin)s via ruthenium-alkylidene initiated ring-opening metathesis polymerization
(
Wiley
, 2019 , Article)
Ring-opening metathesis polymerization (ROMP) of thioether-derived oxanorbornene imide (M1) and its copolymerization with various cycloolefin comonomers such as cyclopentene (M2), cyclopent-3-en-1-ol (M3), cycloheptene ...
Evaluation of pesticide residues of organochlorine in vegetables and fruits in Qatar: statistical analysis
(
Springer Verlag
, 2016 , Article)
The study aimed to examine the residues of organochlorines pesticides (OCPs) in vegetables and fruits in Qatar. A total of 127 samples was studied. Ninety percent of the imported samples recorded residues above the maximum ...
Synthesis of thioether-functional poly(olefin)s via ruthenium-alkylidene initiated ring-opening metathesis polymerization
(
John Wiley and Sons Inc.
, 2019 , Article)
Ring-opening metathesis polymerization (ROMP) of thioether-derived oxanorbornene imide (M1) and its copolymerization with various cycloolefin comonomers such as cyclopentene (M2), cyclopent-3-en-1-ol (M3), cycloheptene ...
Ammonium phosphate as promised hydrogen storage material
(
Elsevier
, 2015 , Article)
Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. Most of the reported hydrogen storage materials are either expensive or based on synthetically complicated compounds. Ammonium phosphates ...
Metal distribution in marine sediment along the Doha Bay, Qatar.
(
Springer
, 2015 , Article)
Concentrations of 25 heavy metals (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, V, Zn and Hg) in surface sediments along the Doha Bay from 10 transects each with five stations were ...
Validation of Total Mercury in Marine Sediment and Biological Samples, Using Cold Vapour Atomic Absorption Spectrometry
(
MDPI
, 2018 , Article)
A method for the measurement of total mercury (T-Hg) in environmental samples using
cold vapour atomic absorption spectrometry (CV AAS) has been validated yielding a dynamic range
(0.04–10.00 g/kg) and high certified ...
Leaching of Some Essential and Non-Essential Heavy Metals from Modern Glazed Ceramic Crockeries Imported into Qatar from China, India and Spain
(
OMICS International
, 2018 , Article)
In this study, the leaching potential of ceramic crockeries available in Qatar market has been evaluated
using inductively coupled plasma mass spectrometry (ICP-MS). Ceramic crockeries decorated with glaze matter
containing ...