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5,427 Newest Publications about the topic sulfur

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Analysis of Organic Sulfur Compounds in Atmospheric Aerosols at the HKUST Supersite in Hong Kong Using HR-ToF-AMS

05-Mar-2015 | Dan Dan Huang; Yong Jie Li; Berto P. Lee; Chak K. Chan, Environmental Science & Technology, 2015

Organic sulfur compounds have been identified in ambient secondary organic aerosols, but their contribution to organic mass is not well quantified. In this study, using a high-resolution time-of-flight aerosol mass spectrometer (AMS), concentrations of organic sulfur compounds were estimated ...

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Synthesis of Nanostructured Carbon through Ionothermal Carbonization of Common Organic Solvents and Solutions

04-Mar-2015 | Yuanqin Chang, Markus Antonietti, Tim‐Patrick Fellinger, Angewandte Chemie International Edition, 2015

Abstract A combination of ionothermal synthesis and hot‐injection techniques leads to novel nanocarbons made from organic solvents. Controlled addition of commonly used organic solvents into a hot ZnCl2 melt gives rise to spherical, sheetlike, and branched nanofibrous carbon nanoparticles with ...

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Enantioselective Syntheses of Sulfoxides in Octahedral Ruthenium(II) Complexes via a Chiral-at-Metal Strategy

04-Mar-2015 | Zheng-Zheng Li; A-Hao Wen; Su-Yang Yao; Bao-Hui Ye, Inorganic Chemistry, 2015

The preparation of chiral 2-(alkylsulfinyl)phenol compounds by enantioselective coordination–oxidation of the thioether ruthenium complexes with a chiral-at-metal strategy has been developed. The enantiomerically pure sulfoxide complexes Δ-[Ru(bpy)2{(R)-LO-R}](PF6) (bpy is 2,2′-bipyridine, HLO-R ...

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Conductive Lewis Base Matrix to Recover the Missing Link of Li2S8 during the Sulfur Redox Cycle in Li–S Battery

04-Mar-2015 | Jia-Jia Chen; Ru-Ming Yuan; Jia-Min Feng; Qian Zhang; Jing-Xin Huang; Gang Fu; Ming-Sen Zheng; Bin Ren; Quan-Feng Dong, Chemistry of Materials, 2015

Sulfur and polysulfides play important roles on the environment and energy storage systems, especially in the recent hot area of high energy density of lithium–sulfur (Li–S) batteries. However, the further development of Li–S battery is still retarded by the lack of complete mechanistic ...

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Development of a Liquid Chromatography–Tandem Mass Spectrometry Method for the Determination of Sulfite in Food

04-Mar-2015 | Katherine S. Robbins; Romina Shah; Shaun MacMahon; Lowri S. de Jager, Journal of Agricultural and Food Chemistry, 2015

Sulfites are widely used food preservatives that can cause severe reactions in sensitive individuals. As a result, the U.S. FDA requires that sulfites be listed on the label of any food product containing >10 mg/kg (ppm) sulfite (measured as sulfur dioxide). Currently, the optimized ...

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Tailored Near-Infrared Contrast Agents for Image Guided Surgery

04-Mar-2015 | Costyl N. Njiojob; Eric A. Owens; Lakshminarayana Narayana; Hoon Hyun; Hak Soo Choi; Maged Henary, Journal of Medicinal Chemistry, 2015

The success of near-infrared (NIR) fluorescence to be employed for intraoperative imaging relies on the ability to develop a highly stable, NIR fluorescent, nontoxic, biocompatible, and highly excreted compound that retains a reactive functionality for conjugation to a cancer-recognizing peptide. ...

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Desulfurization Behavior of Fe–Mn-Based Regenerable Sorbents for High-Temperature H2S Removal

04-Mar-2015 | Bing Zeng; Hairong Yue; Changjun Liu; Tao Huang; Jing Li; Bin Zhao; Ming Zhang; Bin Liang, Energy & Fuels, 2015

A series of Fe–Mn-based sorbents with different Fe/Mn mole ratios was prepared via coprecipitation for the high-temperature removal of H2S. Performance tests were carried out at 1123 K in a fixed-bed reactor, indicating that metallic Fe and MnO were the active components of the Fe–Mn-based ...

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Metal‐Catalyzed “On‐Demand” Production of Carbonyl Sulfide from Carbon Monoxide and Elemental Sulfur

03-Mar-2015 | Wesley S. Farrell, Peter Y. Zavalij, Lawrence R. Sita, Angewandte Chemie International Edition, 2015

Abstract The group 6 molybdenum(II) cyclopentadienyl amidinate (CPAM) bis(carbonyl) complex [Cp*Mo{N(iPr)C(Ph)N(iPr)}(CO)2] (Cp*=η5‐C5Me5) serves as a precatalyst for the high‐yielding photocatalytic production of COS from CO and S8 under near‐ambient conditions (e.g., 10 psi, 25 °C). Further ...

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A Survey of the Role of Noncovalent Sulfur Interactions in Drug Design

03-Mar-2015 | Brett R. Beno; Kap-Sun Yeung; Michael D. Bartberger; Lewis D. Pennington; Nicholas A. Meanwell, Journal of Medicinal Chemistry, 2015

Electron deficient, bivalent sulfur atoms have two areas of positive electrostatic potential, a consequence of the low-lying σ* orbitals of the C–S bond that are available for interaction with electron donors including oxygen and nitrogen atoms and, possibly, π-systems. Intramolecular ...

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Distribution of Total Sulfur in Acidic, Basic, and Neutral Fractions on Brazilian Asphalt Cements and Its Relationship to the Aging Process

03-Mar-2015 | Leandro M. de Carvalho; Paulo C. do Nascimento; Denise Bohrer; Luís E. Claussen; Luis Ferraz; Carla Grassmann; Hugo ..., Energy & Fuels, 2015

In this work, studies were performed in Brazilian asphaltic cements by separating fractions of maltenes and asphaltenes using nonaqueous ion exchange liquid chromatography (NIELC). Initially, three different aging processes (RTFOT, PAV, and SUNTEST) were applied to 23 different asphaltic cements ...

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