The Experts below are selected from a list of 264 Experts worldwide ranked by ideXlab platform
Joseph Moran - One of the best experts on this subject based on the ideXlab platform.
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recent advances in nickel catalysis enabled by stoichiometric metallic Reducing Agents
Synthesis, 2017Co-Authors: Edward Richmond, Joseph MoranAbstract:This short review describes recent advances in the field of nickel catalysis, specifically transformations employing stable Ni(II) precatalysts that are activated in situ with the use of stoichiometric metallic Reducing Agents. The article seeks to summarise the field, highlighting key studies and discussing mechanistic facets. The review closes with an eye on future directions in redox-enabled nickel catalysis. 1 Introduction 2 Nickel Catalysis Enabled by Metallic Reducing Agents 3 Reductive Cross-Coupling 4 Reductive Carboxylation and Acylation-type reactions 5 Miscellaneous Reactivity 6 Perspectives and Future Directions
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Recent Advances in Nickel Catalysis Enabled by Stoichiometric Metallic Reducing Agents
SYNTHESIS, 2017Co-Authors: Edward Richmond, Joseph MoranAbstract:This short review describes recent advances in the field of nickel-catalysis, specifically transformations employing stable Ni(II)-pre-catalysts that are activated in situ with the use of stoichiometric metallic Reducing Agents. The article seeks to summarise the field, highlighting key studies and discussing mechanistic facets. The review closes with one eye on future directions in redox-enabled nickel catalysis.
Edward Richmond - One of the best experts on this subject based on the ideXlab platform.
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recent advances in nickel catalysis enabled by stoichiometric metallic Reducing Agents
Synthesis, 2017Co-Authors: Edward Richmond, Joseph MoranAbstract:This short review describes recent advances in the field of nickel catalysis, specifically transformations employing stable Ni(II) precatalysts that are activated in situ with the use of stoichiometric metallic Reducing Agents. The article seeks to summarise the field, highlighting key studies and discussing mechanistic facets. The review closes with an eye on future directions in redox-enabled nickel catalysis. 1 Introduction 2 Nickel Catalysis Enabled by Metallic Reducing Agents 3 Reductive Cross-Coupling 4 Reductive Carboxylation and Acylation-type reactions 5 Miscellaneous Reactivity 6 Perspectives and Future Directions
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Recent Advances in Nickel Catalysis Enabled by Stoichiometric Metallic Reducing Agents
SYNTHESIS, 2017Co-Authors: Edward Richmond, Joseph MoranAbstract:This short review describes recent advances in the field of nickel-catalysis, specifically transformations employing stable Ni(II)-pre-catalysts that are activated in situ with the use of stoichiometric metallic Reducing Agents. The article seeks to summarise the field, highlighting key studies and discussing mechanistic facets. The review closes with one eye on future directions in redox-enabled nickel catalysis.
Sergei V. Makarov - One of the best experts on this subject based on the ideXlab platform.
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Interaction of cyanocobalamin with sulfur-containing Reducing Agents in aqueous solutions
Russian Journal of Physical Chemistry A, 2012Co-Authors: Denis S. Salnikov, Ilia A. Dereven’kov, E. N. Artyushina, Sergei V. MakarovAbstract:The kinetics and mechanism of cyanocobalamin reduction by sodium hydroxymethanesulfinate and dithionite in alkaline media are studied. It is established that the character of the rate-determining step depends on the concentration of the Reducing Agents: when they are in excess, it is a step of elimination of cyanocobalamin, at lower concentrations of Reducing Agents a rate-determining is a step of their addition to cobalamin.
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Recent trends in the chemistry of sulfur-containing Reducing Agents
Russian Chemical Reviews, 2001Co-Authors: Sergei V. MakarovAbstract:Data on the structure, synthesis, stability and reactivity of sulfur-containing Reducing Agents with C–S or S–S bonds — sodium dithionite, sodium hydroxymethanesulfinate and thiourea oxides — are surveyed. Reactions of anaerobic and aerobic decomposition of sulfur-containing Reducing Agents are discussed. The applications of these compounds in the studies of non-linear phenomena in chemical kinetics and in guanidine syntheses are considered. The bibliography includes 165 references.
Anna Trubetskaya - One of the best experts on this subject based on the ideXlab platform.
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Hydrothermal carbonization of olive wastes to produce renewable, binder-free pellets for use as metallurgical Reducing Agents
Renewable Energy, 2020Co-Authors: Gerrit Ralf Surup, James J. Leahy, Michael T. Timko, Anna TrubetskayaAbstract:Abstract Torrefaction or hydrothermal carbonization processes were compared for conversion of olive pulp into metallurgical Reducing agent. The dependence of yield, CO2 reactivity, and mechanical properties to reaction time and heat treatment temperature was investigated. Hydrochar yield increased with increasing residence time and the maximum solid yield was observed for a residence time of 15 h. On the other hand, CO2 reactivity slightly decreased with increasing heat treatment temperature at a residence time of 2 h. Notably, the CO2 reactivity of hydrochar was less than that of olive pulp char produced by torrefaction, approximating that of carbon-based Reducing Agents derived from non-renewable resources. An additional heat treatment improved hydrochar pellet durability to greater than 95%, whereas stable torrefied char pellets could not be produced under any set of conditions. Hydrothermal carbonization is superior to torrefaction for production of renewable Reducing Agents with reactivity and mechanical properties comparable to those afforded by Reducing Agents from non-renewable sources.
Mohammad Karim Rahimi - One of the best experts on this subject based on the ideXlab platform.
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simultaneous in situ synthesis of nano silver and wool fiber fineness enhancement using sulphur based Reducing Agents
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2012Co-Authors: Mohsen Hosseinkhani, Majid Montaze, Safda Eskandarnejad, Mohammad Karim RahimiAbstract:Abstract Due to the special properties of nano particles for applications in textile processing and concern of wool fineness, a novel method is introduced in this research to modify the coarse wool fineness along with synthesis of nano silver to impart antibacterial properties on wool. Moreover, two diverse Reducing Agents with various concentrations are employed with different concentrations of silver nitrate solutions. The ability of both Reducing Agents confirmed in synthesizing nano silver on the coarse wool through drawing process producing fine wool fibers. However, comparing these two sulphur-based Reducing Agents; the finer wool fibers obtained by using sodium dithionite. Interestingly despite our expectations, the tensile strength of the fine wool yarns increased, using both Reducing Agents along with silver nitrate. FTIR analysis confirmed the changes in the protein structure of the wool and XRD, EDX, AAS and SEM and proved the synthesis and loading of nano silver particles on the wool fiber surfaces. Further, the antibacterial properties of the fine wool confirmed through testing with two different bacteria, including Staphylococcus aureus as a Gram positive and Escherichia coli as a Gram negative bacteria.
