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Showing 1-30 of 84 results for "284513" within Papers
M Arivazhagan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 82(1), 316-326 (2011-08-13)
Molecular structure and vibrational frequencies of 1-3-dibromo-5-chlorobenzene (DBCB) have been investigated by density functional theory (DFT) calculations using Becke's three-parameter exchange functional combined with Lee-Yang-Parr correlation (B3LYP) and standard basis set 6-31G. DFT (B3LYP/6-31G) calculations have been performed giving energies
Mi Yan et al.
Waste management (New York, N.Y.), 32(7), 1453-1458 (2012-04-06)
Nitrogen containing compounds such as ammonia, urea and amines can effectively inhibit the formation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Sewage sludge accumulates both sulfur and nitrogen during wastewater treatment so it could be used to reduce PCDD/Fs formation. Indeed
Angélique San Miguel et al.
Ecotoxicology (London, England), 21(2), 315-324 (2011-09-29)
A 7-day-exposure time experiment was designed to investigate the phytotoxicity of chlorobenzenes (CBs) on Zea mays seedlings, focusing on the growth and generation of oxidative stress. Significant growth inhibition (based on biomass gain) was observed for exposure to monochlorobenzene (MCB)
Dong-Jin Seol et al.
ChemSusChem, 8(14), 2414-2419 (2015-04-18)
Planar-structured HC(NH2 )2 PbI3 (FAPbI3 ) perovskite solar cells were prepared via a two-step deposition process. To investigate the role of interface, the perovskite morphology was intentionally modified by varying HC(NH2 )2 I concentration. Surface and grain sizes of the
Jiyong Lee et al.
ChemSusChem, 8(14), 2358-2362 (2015-05-28)
The low electrical conductivity of spiro-OMeTAD hole transport layers impedes further enhancements of the power conversion efficiency (PCE) of perovskite solar cells. We embedded multiwalled carbon nanotubes (MWNTs) in spiro-OMeTAD (spiro-OMeTAD/MWNTs) to increase carrier mobility and conductivity. However, direct electrical
Dane R Letourneau et al.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 14(11), 2108-2118 (2015-10-07)
The photochemically mediated dechlorination of polyhalogenated compounds represents a potential decontamination strategy and a relevant environmental process in chemically reducing media. We report the UV irradiation of natural and artificial waters containing natural dissolved organic matter to effect the photo-sensitized
Eagleson M.
Concise Encyclopedia Chemistry, 6-6 (1994)
Ying Liu et al.
Talanta, 142, 213-220 (2015-05-25)
A new method based on dispersive liquid liquid microextraction (DLLME) combined with electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS) was developed for the simultaneous speciation of inorganic arsenic (As), selenium (Se) and tellurium (Te) with sodium diethyldithiocarbamate (DDTC) as
P Marín et al.
Journal of occupational and environmental hygiene, 10(3), 132-142 (2013-01-30)
Passive sampling is a well-established methodology for the evaluation of exposures to environmental volatile organic compounds (VOCs). The solid-phase microextraction (SPME) technique is a reliable means of sampling VOCs in air. SPME is also being applied as a passive sampler
Wei-Chao Chen et al.
ACS applied materials & interfaces, 7(8), 4616-4622 (2015-02-11)
Controlled dispersion of single-walled carbon nanotubes (SWCNTs) in common solvents is a challenging issue, especially for the rising need of low cost flexible transparent conducting films (TCFs). Utilizing conductive polymer as surfactant to facilitate SWCNTs solubility is the most successful
Xiaoqing Zhou et al.
The Analyst, 140(5), 1662-1671 (2015-01-27)
An effective dual preconcentration method involving off-line hollow fiber liquid-liquid-liquid microextraction (HF-LLLME) and on-line sweeping micellar electrokinetic chromatography (sweeping-MEKC) was proposed for the determination of five second-generation antidepressants, including fluoxetine, sertraline, paroxetine, fluvoxamine and citalopram. In HF-LLLME, the analytes were
Efficient recyclable organic solar cells on cellulose nanocrystal substrates with a conducting polymer top electrode deposited by film-transfer lamination.
Zhou Y, et al.
Organic Electronics, 15(3), 661-666 (2014)
Hyeju Choi et al.
Chemical communications (Cambridge, England), 51(45), 9305-9308 (2015-05-12)
Novel star-shaped hole transporting materials (HTMs) with a bis-dimethylfluorenylamino moiety have been synthesized and evaluated for high performance perovskite solar cell applications. Maximum power conversion efficiency of 14.21% has been achieved by using the HTM with a fused TPA core
Manoj Kumar Gupta et al.
Journal of analytical toxicology, 39(5), 365-373 (2015-04-08)
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants and well-known carcinogens. Hydroxy derivatives of PAH are considered as biomarkers of PAH exposure, and there is a need to measure these metabolites at low concentrations. So, a precise and eco-friendly analytical
M Govindarajan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 97, 231-245 (2012-07-07)
In this work, the experimental and theoretical study on the molecular structure and vibrational spectra of 2,4,5-trichloroaniline (C(6)H(4)NCl(3), abbreviated as 2,4,5-TClA) were studied. The FT-IR and FT-Raman spectra were recorded. The molecular geometry and vibrational frequencies in the ground state
M Govindarajan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 88, 37-48 (2011-12-27)
In this work, the vibrational spectral analysis was carried out by using FT-Raman and FT-IR spectroscopy in the range 100-4000 cm(-1) and 400-4000 cm(-1) respectively, for the title molecule. The molecular structure, fundamental vibrational frequencies and intensity of the vibrational
Rajeev Dattani et al.
Soft matter, 11(16), 3125-3131 (2015-03-06)
We report the phase behaviour of polymer/fullerene/solvent ternary mixtures and its consequence for the morphology of the resulting composite thin films. We focus particularly on solutions of polystyrene (PS), C60 fullerene and toluene, which are examined by static and dynamic
F Vela-Soria et al.
Talanta, 129, 209-218 (2014-08-17)
The population is continuously exposed to endocrine disrupting chemicals (EDCs). This has influenced an increase in diseases and syndromes that are more frequent nowadays. Therefore, it is necessary to develop new analytical procedures to evaluate the exposure with the ultimate
Kerry N McPhedran et al.
Water research, 47(7), 2222-2230 (2013-03-12)
The sorption behaviour of hydrophobic organic compounds (HOCs) 1,2,4,5-tetrachlor-obenzene (TeCB), pentachlorobenzene (PeCB) and hexachlorobenzene (HCB) to Aldrich humic acid (AHA) and municipal wastewater treatment plant (MWTP) influent colloidal organic carbon (COC) was investigated using the gas-stripping technique. Gas stripping assumptions
Salim Sioud et al.
Rapid communications in mass spectrometry : RCM, 28(22), 2389-2397 (2014-10-11)
The formation of ions during atmospheric pressure photoionization (APPI) mass spectrometry in the positive mode usually provides radical cations and/or protonated species. Intriguingly, during the analysis of some N-alkyl-substituted thieno[3,4-c]pyrrole-4,6-dione (TPD) derivatives synthesized in our laboratory, unusual [M-H](+) ion peaks
Marta Valles-Pelarda et al.
The journal of physical chemistry letters, 7(22), 4622-4628 (2016-11-05)
The use of self-assembled monolayers (SAMs) of fullerene derivatives reduces the hysteresis of perovskite solar cells (PSCs). We have investigated three different fullerene derivatives observing a decrease on hysteresis for all the cases. Several processes can contribute to the hysteresis
Catalysts based on pillared clays for the oxidation of chlorobenzene.
Aznarez A, et al.
Catalysis Today, 246, 15-27 (2015)
Jingqi Liu et al.
Scientific reports, 9(1), 1362-1362 (2019-02-06)
Previously, textile dye sensitised solar cells (DSSCs) woven using photovoltaic (PV) yarns have been demonstrated but there are challenges in their implementation arising from the mechanical forces in the weaving process, evaporation of the liquid electrolyte and partially shaded cells
Jonathan H Warby et al.
ACS nano, 14(7), 8855-8865 (2020-06-24)
Light-emitting diodes (LEDs) made from metal halide perovskites have demonstrated external electroluminescent quantum efficiencies (EQEEL) in excess of 20%. However, their poor operational stability, resulting in lifetimes of only tens to hundreds of hours, needs to be dramatically improved prior
Eagleson M.
Concise Encyclopedia Chemistry, 302-302 (1994)
Weijun Ke et al.
Nature communications, 6, 6700-6700 (2015-03-24)
Efficient lead halide perovskite solar cells use hole-blocking layers to help collection of photogenerated electrons and to achieve high open-circuit voltages. Here, we report the realization of efficient perovskite solar cells grown directly on fluorine-doped tin oxide-coated substrates without using
Nicholas G Davey et al.
Rapid communications in mass spectrometry : RCM, 29(23), 2187-2194 (2015-11-03)
The ability of membrane introduction mass spectrometry to quantitatively resolve low molecular weight volatile organic compounds (VOCs) such as benzene, toluene, ethylbenzene and xylene (BTEX) using electron ionization (EI) can be compromised by isobaric interferences. This work focuses on reducing
Xiaoming Liang et al.
Environmental science & technology, 45(19), 8321-8327 (2011-08-20)
Stable carbon isotope fractionation is a valuable tool for monitoring natural attenuation and to establish the fate of groundwater contaminants. In this study, we measured carbon isotope fractionation during aerobic and anaerobic degradation of two chlorinated benzenes: monochlorobenzene (MCB) and
Palladium (II) acetate-butyldi-1-adamantylphosphine catalyzed arylation of electron-rich heterocycles. preparation of 5-phenyl-2-isobutylthiazole.
Organic Syntheses, 89, 105-105 (2009)
U W Pradeep et al.
Nanotechnology, 28(3), 035403-035403 (2016-12-15)
Hole collection and transport are crucial physical processes in bulk-heterojunction (BHJ) solar cells, which represent major bottlenecks due to their limitations in power conversion efficiency (PCE). Hence, a more efficient alternative is needed to accept and transport holes to the
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