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4,003 Newest Publications about the topic sulfur

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Three-dimensional CuS hierarchical architectures as recyclable catalysts for dye decolorization

23-May-2012 | Zhen Li; Liwei Mi; Weihua Chen; Hongwei Hou; Chuntai Liu; Hailei Wang; Zhi Zheng; Changyu Shen, CrystEngComm, 2012

In the current paper, we report the synthesis of three-dimensional (3D) copper sulfide (CuS) with novel tertiary hierarchical architectures prepared by a one-step solvothermal method through the reaction of sulfur powder and solid copper for the first time. In this work, porous copper foam is ...

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Interference standard and oxide ion detection as strategies to determine phosphorus and sulfur in fuel samples by inductively coupled plasma quadrupole mass spectrometry

23-May-2012 | George L Donati; Renata S Amais; Joaquim A Nobrega, Journal of Analytical Atomic Spectrometry, 2012

Phosphorus and S are challenging elements in inductively coupled plasma quadrupole mass spectrometry (ICP-QMS). Their high ionization energies and severe spectral interferences from polyatomic species abundant in the plasma can compromise sensitivity and accuracy in ICP-QMS determinations. An ...

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Study on in Situ Sulfur Removal from Gasoline in Fluid Catalytic Cracking Process

23-May-2012 | Yaoshun Wen; Gang Wang; Chunming Xu; Jinsen Gao, Energy & Fuels, 2012

On the basis of the cracking desulfurization of naphtha and the subsidiary riser in the fluid catalytic cracking (FCC) process for gasoline reformation, the in situ sulfur removing from naphtha in the FCC unit was investigated and a conceptual process was proposed. The relevant experiments were ...

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α-Sulfur Crystals as a Visible-Light-Active Photocatalyst

23-May-2012 | Gang Liu; Ping Niu; Lichang Yin; Hui-Ming Cheng, Journal of the American Chemical Society, 2012

We show that in contrast to conventional compound photocatalysts, α-sulfur crystals of cyclooctasulfur (S8) are a visible-light-active elemental photocatalyst. The α-S crystals were found to have the ability not only to generate ·OH radicals but also to split water in a photoelectrochemical ...

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Caerulomycins and Collismycins Share a Common Paradigm for 2,2′-Bipyridine Biosynthesis via an Unusual Hybrid Polyketide–Peptide Assembly Logic

23-May-2012 | Xudong Qu; Bo Pang; Zhicong Zhang; Ming Chen; Zhuhua Wu; Qunfei Zhao; Qinglin Zhang; Yinyan Wang; Yun Liu; Wen Liu, Journal of the American Chemical Society, 2012

Caerulomycins (CAEs) and collismycins (COLs), which mainly differ in sulfur decoration, are two groups of structurally similar natural products containing a 2,2′-bipyridine (2,2′-BP) core, derivatives of which have been widely used in chemistry. The biosynthetic pathways of CAEs and COLs remain ...

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Catalytic Enantioselective Protonation of Nitronates Utilizing an Organocatalyst Chiral Only at Sulfur

23-May-2012 | Kyle L. Kimmel; Jimmie D. Weaver; Melissa Lee; Jonathan A. Ellman, Journal of the American Chemical Society, 2012

The highly enantioselective protonation of nitronates formed upon the addition of α-substituted Meldrum’s acids to terminally unsubstituted nitroalkenes is described. This work represents the first enantioselective catalytic addition of any type of nucleophile to this class of nitroalkenes. ...

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Degradation of cellulose at the wet-dry interface: I—study of the depolymerization

22-May-2012 | Myung-Joon Jeong, Anne-Laurence Dupont, E. René de la Rie, Cellulose, 2012

The degradation of cellulose in paper due to the formation of a tideline at the wet-dry interface when paper is suspended in water was explored. SEC/MALS was used to assess the molar mass, while ICP/MS, SEM/EDS and CE/UV provided a qualitative and quantitative analysis of the elements and ...

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ChemInform Abstract: Selective Adsorption for Removing Sulfur: A Potential Ultra‐Deep Desulfurization Approach of Jet Fuels

22-May-2012 | Shen, Yuesong; Li, Peiwen; Xu, Xinhai; Liu, Hong, ChemInform, 2012

Abstract Review: 104 refs.

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ChemInform Abstract: Reaction of Bis(prop‐2‐yn‐1‐yl) Sulfide with Sulfur Dichloride. First Example of Cyclization of Bis(prop‐2‐yn‐1‐yl) Chalcogenides by the Action of Chalcogen Halides.

22-May-2012 | Martynov, A. V.; Amosova, S. V., ChemInform, 2012

Abstract (E,E)‐2,6‐Bis(chloromethylidene)‐1,4‐dithiane (II) is regio‐ and stereoselectively obtained in an anti‐Markovnikov addition at both triple bonds of compound (I).

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ChemInform Abstract: Microwave‐Promoted “One‐Pot” Synthesis of 4‐Nitrobenzylthioinosine Analogues Using Thiourea as a Sulfur Precursor.

22-May-2012 | Niu, Hong‐Ying; Xia, Chao; Qu, Gui‐Rong; Wu, Shan; Jiang, Yi; Jin, Xin; Guo, Hai‐Ming, ChemInform, 2012

Abstract A rapid and operationally simple method for the synthesis of various C‐6 alkylthiosubstituted purine nucleosides is developed which acts under microwave irradiation and without any metal catalyst.

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