Merck
Search Within
Applied Filters:
Keyword:'270644'
Showing 1-30 of 64 results for "

270644

" within Papers
Catalysts based on pillared clays for the oxidation of chlorobenzene.
Aznarez A, et al.
Catalysis Today, 246, 15-27 (2015)
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
Yayun Zhu et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 5(3), 1700614-1700614 (2018-03-30)
In the planar perovskite solar cells (PSCs), the electron transport layer (ETL) plays a critical role in electron extraction and transport. Widely utilized TiO2 ETLs suffer from the low conductivity and high surface defect density. To address these problems, for
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
Fengren Cao et al.
Advanced materials (Deerfield Beach, Fla.), 31(12), e1806725-e1806725 (2019-01-31)
Self-powered photodetectors are highly desired to meet the great demand in applications of sensing, communication, and imaging. Manipulating the carrier separation and recombination is critical to achieve high performance. In this paper, a self-powered photodetector based on the integrated gradient
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
Guanhaojie Zheng et al.
Nature communications, 9(1), 2793-2793 (2018-07-20)
Crystal orientations in multiple orders correlate to the properties of polycrystalline materials, and it is critical to manipulate these microstructural arrangements to enhance device performance. Herein, we report a controllable approach to manipulate the facet orientation within the ABX3 hybrid
Jingjing He et al.
ChemSusChem, 13(20), 5443-5448 (2020-07-22)
Interface engineering has shown great potential to improve the photovoltaic performance and long-term stability of perovskite solar cells. Herein, RbX (X=Br, I) materials were developed as the interfacial modifiers for CsPbI2 Br solar cells that realized power conversion efficiencies (PCE)
Eagleson M.
Concise Encyclopedia Chemistry, 6-6 (1994)
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)
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
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
Ping Fan et al.
Nanomaterials (Basel, Switzerland), 9(12) (2019-12-15)
Lead-free double perovskites have been considered as a potential environmentally friendly photovoltaic material for substituting the hybrid lead halide perovskites due to their high stability and nontoxicity. Here, lead-free double perovskite Cs2AgBiBr6 films are initially fabricated by single-source evaporation deposition
Jiangzhao Chen et al.
Advanced materials (Deerfield Beach, Fla.), 31(39), e1902902-e1902902 (2019-08-14)
Chemical interaction at a heterojunction interface induced by an appropriate chemical linker is of crucial importance for high efficiency, hysteresis-less, and stable perovskite solar cells (PSCs). Effective interface engineering in PSCs is reported via a multifunctional chemical linker of 4-imidazoleacetic
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
Aneta Baj et al.
Antioxidants (Basel, Switzerland), 8(12) (2019-11-30)
Vitamin E is the most active natural lipophilic antioxidant with a broad spectrum of biological activity. α-Tocopherol (α-T), the main representative of the vitamin E family, is a strong inhibitor of lipid peroxidation as a chain-breaking antioxidant. Antioxidant and antiradical
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
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
Giulia Caron et al.
Journal of medicinal chemistry, 48(9), 3269-3279 (2005-04-29)
Growing interest in the use of both the logarithm of the partition coefficient of the neutral species in the alkane/water system (log P(N)(alk)) and the difference between log P(N)(oct) (the logarithm of the partition coefficient of the neutral species in
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
Th Gomti Devi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 91, 106-112 (2012-03-01)
Solvent dependent Raman band studies of some carbonyl containing molecules have been carried out in chlorobenzene (CLB) and chloroform (CLF) solvents. The variation of bandwidth with the solvent concentration was discussed using different mechanisms. The vibrational and reorientational correlation times
Rohidas S Sulake et al.
Bioorganic & medicinal chemistry letters, 21(19), 5719-5721 (2011-08-26)
A convenient synthesis of ketamine metabolite dehydronorketamine-d(4), starting from commercially available deuterium labeled bromochlorobenzene, was achieved. Key steps include Grignard reaction, regioselective hydroxybromination, Staudinger reduction, and dehydrohalogenation.
R B Nasir Baig et al.
Chemical communications (Cambridge, England), 48(20), 2582-2584 (2012-02-02)
Diaryl sulfides were synthesized using a magnetically recoverable heterogeneous Cu catalyst via one-pot multi component reaction using MW irradiation; the use of isopropanol as a benign reaction medium, easy recovery of the catalyst using an external magnet, efficient recycling, and
Lloyd Muzangwa et al.
The Journal of chemical physics, 137(18), 184307-184307 (2012-11-21)
Noncovalent interactions such as hydrogen bonding, π-π stacking, CH/π interactions, and halogen bonding play crucial roles in a broad spectrum of chemical and biochemical processes, and can exist in cooperation or competition. Here we report studies of the homoclusters of
Chuan-Yu Qin et al.
Water environment research : a research publication of the Water Environment Federation, 85(2), 133-140 (2013-03-12)
A two-dimensional laboratory sand tank was installed to study the remediation efficiency of surfactant-enhanced air sparging (-SEAS) coupled with soil vapor extraction (SVE) in nonaqueous phase liquid (NAPL) polluted sites. During initial stages of remediation, it was more reasonable to
Eagleson M.
Concise Encyclopedia Chemistry, 302-302 (1994)
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
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
En-Chi Shen et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 7(1), 1901952-1901952 (2020-01-11)
Inorganic mixed-halide CsPbX3-based perovskite solar cells (PeSCs) are emerging as one of the most promising types of PeSCs on account of their thermostability compared to organic-inorganic hybrid counterparts. However, dissatisfactory device performance and high processing temperature impede their development for
Page 1 of 3
Page 1 of 3