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Graphene oxide reduction by standard industrial reducing agent : thiourea dioxide
Published 2013“…The reduced graphene oxide product demonstrated a good electrochemical performance with a charge transfer resistance as low as 0.11 kΩ based on EIS measurements and a low overpotential for the oxidation of ascorbic acid. Since thiourea is a common industrial reductant, standard protocols are already in place for the waste produced from this methodology. …”
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Journal Article -
2
Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea
Published 2013“…In this work, thiourea provides the ammonium ions which alter the growth rate and stabilize the hexagonal framework. …”
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Journal Article -
3
Access to all-carbon spirocycles through a carbene and thiourea cocatalytic desymmetrization cascade reaction
Published 2020“…The use of a thiourea cocatalyst is critical to turn on this reaction, as no product was formed in the absence of a thiourea. …”
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Journal Article -
4
Enantioselective sulfonation of enones with sulfonyl imines by cooperative N-heterocyclic-carbene/thiourea/tertiary-amine multicatalysis
Published 2014“…The enantioselectivity of the process was controlled by a chiral thiourea/amine co-catalyst through anion recognition and hydrogen-bonding interactions. …”
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Journal Article -
5
Design, synthesis and anti-PVY activity of planar chiral thiourea derivatives incorporated with [2.2]paracyclophane
Published 2024“…To discover new antiviral agents, a class of planar chiral thiourea molecules through the key step of N-heterocyclic carbene-catalyzed nitrile formation reaction was synthesized with excellent optical purities for antiviral evaluations against plant virus PVY. …”
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Journal Article -
6
Photocatalytic systems for visible light driven H2 production from water
Published 2012“…A series of CuS(y)-ZnxCd1-xS photocatalysts were synthesized in ethylene glycol using thiourea as the sulfur source. A novel and low-cost NiS/CdS photocatalyst system was synthesized via a simple hydrothermal route by precipitating nickel acetate on the CdS surface in the presence of a large excess of thiourea. …”
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Thesis -
7
Exploring sulphur substitution in CuCrO2 as p-type transparent conducting materials for optoelectronics applications
Published 2024“…The second strategy through thiourea addition yielded non-conductive films with bandgaps ranging from 3.14 to 3.19 eV. …”
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Final Year Project (FYP) -
8
Polarization engineering of covalent triazine frameworks for highly efficient photosynthesis of hydrogen peroxide from molecular oxygen and water
Published 2023“…Mechanistic studies reveal the photocatalytic performance is attributed to the prominently enhanced two-electron oxygen reduction reaction by forming endoperoxide at the triazine unit and highly concentrated holes at the thiourea site. The generated O2 from water oxidation is subsequently consumed by the oxygen reduction reaction (ORR), thereby boosting overall reaction kinetics. …”
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Journal Article -
9
New reaction development using N-hetereocyclic carbenes and phosphines as nucleophilic organocatalysts
Published 2016“…This work represents the first example of NHC/thiourea/tertial amine co-catalysis. Chapter 3 is about the direct β-activation of aliphatic substituted carboxylic anhydride. …”
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Thesis -
10
Highly enantio- and diastereoselective reactions of γ-substituted butenolides through direct vinylogous conjugate additions
Published 2013“…The strength of the weak: An L-tert-leucine-derived amine–thiourea catalyst (see scheme, green box) promotes the asymmetric vinylogous conjugate addition reaction between γ-aryl- and alkyl-substituted butenolides with the butenamides and enoates shown. …”
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Journal Article -
11
Asymmetric Michael addition of 5 H-oxazol-4-ones to vinyl sulfones : stereoselective synthesis of monofluorinated analogs of 2-tertiary hydroxyl-3-methyl-substituted carboxylic aci...
Published 2015“…In the presence of 10 mol % of quinine-based benzyl-substituted thiourea as catalyst at 0 °C, the products could be obtained with excellent enantio- and diastereoselectivity (up to>99 % ee and>20:1 dr). 1.0 mol % of catalyst also produced the corresponding adducts with similar stereoselective results when the temperature was increased to 25 °C. …”
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Journal Article -
12
Towards solar fuels : photocatalyst development for water splitting and carbon dioxide reduction
Published 2014“…Higher product yield was obtained from thiourea than that from urea as the starting material. …”
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Thesis -
13
Development of optically transparent ZnS/poly(vinylpyrrolidone) nanocomposite films with high refractive indices and high Abbe numbers
Published 2014“…ME-ZnS NPs of around 3 nm were prepared from zinc acetate and thiourea precursors in N,N-dimethylformamide using ME as a capping agent. …”
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Journal Article -
14
N-hetereocyclic carbenes-catalyzed desymmetrization and rapid access to spirocylic molecules
Published 2019“…Chapter 2 describes an NHC-thiourea co-catalysis of optical pure spirocylic skeletons via Stetter-aldol tandem reaction. …”
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Thesis -
15
Novel 1,1'-bisisoquinolines : synthesis, resolution and application in asymmetric catalysis
Published 2010“…The reactivity and structural features of (+)-1,2,3,4-tetrahydro- -1,1'-bisisoquinoline were explored in details through formation of various N-alkyl, amide, urea and thiourea derivatives and by studying the X-ray structures of some of these derivatives.…”
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Thesis -
16
Mesoporous carbon nitride with in situ sulfur doping for enhanced photocatalytic hydrogen evolution from water under visible light
Published 2013“…In situ sulfur-doped mesoporous g-C3N4 (mpgCNS) was synthesized from a simple organosulfur compound, thiourea, using SiO2 nanoparticles as the hard template. …”
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Journal Article -
17
Optimal composition of earth abundant CZTS precursors for photovoltaics application
Published 2016“…CZTS solar cell were successfully fabricated on Molybdenum-coated glass by spin coating technique with variation of precursors such as zinc chloride, zinc acetate, and zinc nitrates for the Zn precursors and copper acetate and copper chloride for the Cu precursors, while for the tin and Sulphur precursors, the tin chloride and thiourea were used respectively. This was followed by annealing through sulphurization and selenization process. …”
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Final Year Project (FYP) -
18
cis-Cyclodiphosph(v/v)azanes as highly stable and robust main group supramolecular building blocks
Published 2020“…Such bifurcated hydrogen bonds formed by the cyclodiphosphazane scaffold contain larger bite angles than those of their more well-known urea, thiourea and squaramide counterparts. We obtained five different solvate crystals as well as three different cocrystals that all contain similar hydrogen bonding motifs. …”
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Journal Article -
19
A facile synthesis of label-free carbon dots with unique selectivity-tunable characteristics for ferric ion detection and cellular imaging applications
Published 2021“…This work reports the synthesis of nitrogen and sulfur co-doped carbon dots (NS-CDs) via a one-step facile microwave-assisted pyrolysis using citric acid and thiourea as the carbon precursor and dopant, respectively. …”
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Journal Article -
20
Towards high-powered remote WLED based on flexible white-luminescent polymer composite films containing S, N co-doped graphene quantum dots
Published 2019“…To this end, the S, N-GQDs with an average diameter of ∼4.46 nm are obtained by a hydrothermal approach using citric acid and thiourea as source materials. The PL spectra of S, N-GQDs show an excitation-independent behavior in the range of 300–380 nm. …”
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Journal Article