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Highly selective transformation of glycerol to dihydroxyacetone without using oxidants by PtSb/C-catalyzed electrooxidation process

02-Feb-2016 | Seonhwa Lee; Hyung Ju Kim; Eun Ja Lim; Youngmin Kim; Yuseong Noh; George Huber; Won Bae Kim, Green Chemistry, 2016

We demonstrate an electrocatalytic reactor system for the partial oxidation of glycerol in an acidic solution to produce value-added chemicals, such as dihydroxyacetone (DHA), glyceraldehyde (GAD), glyceric acid (GLA), and glycolic acid (GCA). Under optimized conditions, the carbon-supported ...

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CIDNP study of sensitized photooxidation of S-methylcysteine and S-methylglutathione in aqueous solution

31-Jan-2016 | Author(s): Olga B. Morozova, Mikhail S. Panov, Hans-Martin Vieth, Alexandra V. Yurkovskaya, Journal of Photochemistry and Photobiology A: Chemistry, 2016

Publication date: 1 May 2016 Source:Journal of Photochemistry and Photobiology A: Chemistry, Volume 321 Author(s): Olga B. Morozova, Mikhail S. Panov, Hans-Martin Vieth, Alexandra V. Yurkovskaya Time-resolved CIDNP (chemically induced dynamic nuclear polarization) was applied to the ...

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Removal of SO2 from Flue Gas Using Basic Aluminum Sulfate Solution with the Byproduct Oxidation Inhibition by Ethylene Glycol

29-Jan-2016 | Min Chen; Xianhe Deng; Feiqiang He, Energy & Fuels, 2016

This paper presents a novel wet flue gas desulfurization (FGD) technology based on a basic aluminum sulfate (BAS) desorption regeneration process, in which ethylene glycol (EG) was first employed to inhibit the byproduct oxidation. The operating parameter effect on SO2 absorption efficiency and ...

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A Ruthenium Complex/Carbon Nanotube Based Electrode as the First Electrochemical Sensor for Simultaneous Sensing of D‐Penicillamine, 6‐Thioguanine and Catecholamines

27-Jan-2016 | Mohammad Mazloum‐Ardakani, Mohammad Ali Sheikh‐Mohseni, Masoud Salavati‐Niasari, Electroanalysis, 2016

Abstract The electrochemical behavior of a synthesized Ru complex (RuL) was investigated at multiwalled carbon nanotubes modified carbon paste electrode. Some special properties of the electrochemical response of this modified electrode are suitable charge transfer rate, repeatability and ...

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Radical Monocationic Guanidino-Functionalized Aromatic Compounds (GFAs) as Bridging Ligands in Dinuclear Metal Acetate Complexes: Synthesis, Electronic Structure, and Magnetic Coupling

27-Jan-2016 | Benjamin Eberle; Marko Damjanović; Markus Enders; Simone Leingang; Jessica Pfisterer; Christoph Krämer; Olaf Hübner; ..., Inorganic Chemistry, 2016

In this work, the oxidation of several new dinuclear metal (M) acetate complexes of the redox-active guanidino-functionalized aromatic compound (GFA) 1,2,4,5-tetrakis(tetramethylguanidino)benzene (1) was studied. The complexes [1{M(OAc)2}2] (M = Ni or Pd) were oxidized to the radical monocationic ...

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Aging of Transition Metal Dichalcogenide Monolayers

27-Jan-2016 | Jian Gao; Baichang Li; Jiawei Tan; Phil Chow; Toh-Ming Lu; Nikhil Koratkar, ACS Nano, 2016

Two-dimensional sheets of transition metal dichalcogenides are an emerging class of atomically thin semiconductors that are considered to be “air-stable”, similar to graphene. Here we report that, contrary to current understanding, chemical vapor deposited transition metal dichalcogenide ...

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Production of Molecular Iodine and Tri-iodide in the Frozen Solution of Iodide: Implication for Polar Atmosphere

22-Jan-2016 | Kitae Kim; Akihiro Yabushita; Masanori Okumura; Alfonso Saiz-Lopez; Carlos A. Cuevas; Christopher S. Blaszczak-Boxe; ..., Environmental Science & Technology, 2016

The chemistry of reactive halogens in the polar atmosphere plays important roles in ozone and mercury depletion events, oxidizing capacity, and dimethylsulfide oxidation to form cloud-condensation nuclei. Among halogen species, the sources and emission mechanisms of inorganic iodine compounds in ...

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Cerium Complex‐Catalyzed Oxidation of Arylmethanols under Atmospheric Pressure of Dioxygen and Its Mechanism through a Side‐On μ‐Peroxo Dicerium(IV) Complex

21-Jan-2016 | Mitali Paul, Satoru Shirase, Yuma Morimoto, Laurent Mathey, Murugesapandian Balasubramanian, Shinji Tanaka, Shinobu ..., Chemistry - A European Journal, 2016

Abstract A new CeIV complex [Ce{NH(CH2CH2N=CHC6H2‐3,5‐(tBu)2‐2‐O)2}(NO3)2] (1), bearing a dianionic pentadentate ligand with an N3O2 donor set, has been prepared by treating (NH4)2Ce(NO3)6 with the sodium salt of ligand L1. Complex 1 in the presence of TEMPO and 4 Å molecular sieves (MS4 A) ...

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Charge transfer reactions from tryptophan and tyrosine to sulfur‐centered dimer radical cation in aqueous –sulfuric acid medium: a pulse radiolysis study

20-Jan-2016 | Ravi Joshi, Journal of Physical Organic Chemistry, 2016

Abstract Kinetics and mechanism of one‐electron oxidation of N‐acetyl methionine (NAM), tryptophan (TrpH), tyrosine (TyrOH), and phenylalanine (Phe) have been studied in 33% v/v H2SO4 solution. The solvent radical (SO4•¯) oxidized NAM, TrpH, TyrOH, and Phe to produce NAM2•+ (480 nm), TrpH•+ ...

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Synthesis and Catalytic Reactivity of a Dicopper(II) μ-η2:η2-Peroxo Species Supported by 1,4,7-Tri-tert-butyl-1,4,7-triazacyclononane

20-Jan-2016 | Gregory J. Karahalis; Arumugam Thangavel; Bryant Chica; John Bacsa; R. Brian Dyer; Christopher C. Scarborough, Inorganic Chemistry, 2016

O2-derived CunO2 adducts are attractive targets for aerobic oxidation catalysis because of their remarkable reactivity, but oxidation of the supporting ligand limits catalytic turnover. We report that tBu3tacn (1,4,7-tri-tert-butyl-1,4,7-triazacyclononane) supports a dicopper(II) μ-η2:η2-peroxo ...

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