Reduction Of Model Compounds Research Articles

Quick Review of Chemistry Related to the [Fe]-Hydrogenases

This review provides a comprehensive overview of the synthesis, reactivity, and electrochemistry of chemical models of active site structures in [Fe] hydrogenase, an enzyme that catalyzes the reversible reduction of protons to submergence. Related literature on the structure and functions of the [Fe] hydrogenase active site, H cluster, is discussed with an emphasis on the di-iron organosome. In addition, various methods for the preparation and characterization of model complexes are discussed, as well as reactivity studies focusing on the oxidation and reduction of model compounds and their interaction with small molecules such as hydrogen and carbon monoxide. Finally, the electrochemical behavior of the model compounds is discussed in relation to their performance in electrocatalytic applications. This review provides a comprehensive analysis of the chemistry and reactivity of chemical models of the active site of [Fe] hydrogenase, which can be a valuable reference for further research.

Effects of polyelectrolytes on reduction of model compounds via coagulation

The objective of this research work was to evaluate the performance of enhanced coagulation by alum and polymer. Synthetic source waters containing high molecular weight humic acids, medium molecular weight tannic acids and low molecular weight p-hydroxybenzoic acid were formulated by adjusting the concentration of turbidity and pH; and jar tests were used to study the effect of various types and dosages of polymer on reducing the above model compounds. At a specific pH condition, the applied alum dosage would efficiently decrease the turbidity to 2 NTU follows the order: humic > tannic > p-hydroxybenzoic acid. Adjustment of pH influenced the performance of alum obviously but not of p-DADMAC. High p-DADMAC dosage overwhelming the effects of alum is less affected by pH adjustment. The results of this investigation reveal that enhanced coagulation with p-DADMAC was founded to be very effective for removing high-molecular-weight THM precursors, i.e., humic acid and tannic acid, and markedly reduced the alum dosages required for turbidity removal. The other two polymers, i.e., cationic PAM and non-ionic PAM, which had higher molecular weight but lower charge density than p-DADMAC, were not capable of removing organic precursors. It was thus concluded that enhanced coagulation with polymer, p-DADMAC, could be considered as a promising technique for removal of NOMs with hydrophobic and higher-molar-mass (>1 K) in water treatment plants.

An organometallic approach to catalytic CO hydrogenation: Deoxygenative reduction of model compounds by hydrosilanes

An organometallic approach to catalytic CO hydrogenation: Deoxygenative reduction of model compounds by hydrosilanes