In this work, the mass and energy balances economic analysis of a continuous process for reduction CO2 (captured as NaHCO3) into sodium formate using Zn reductant are studied. The reaction in hydrothermal media has advantage easily integrating conversion system with capture by absorption basic solutions. conditions (pressure, Zn/NaHCO3 molar ratio, residence time) were theoretically optimized. ...

The environmentally friendly ionic liquid N-(2-hydroxyethyl)ammonium formate works as a reaction medium, reducing and templating agent in the mild microwave synthesis (5 min, 80 degrees C) of a macroporous silver framework from AgNO(3).

Human activities during the last century have increased concentration of greenhouse gases in Earth's atmosphere, mainly carbon dioxide (CO2), and impacts climate change around world are becoming more damaging. Therefore, scientific research is needed to mitigate consequences atmospheric CO2, and, among others, electrochemical CO2 conversion useful chemicals one most interesting alternatives. He...

A three compartment solar formic acid generator was built using a Sn on Cu foam cathode and NiFe anode. bipolar combination of Fumasep FAD-PET-75 Nafion 117 membrane mounted between anode middle compartment, which filled with Amberlyst 15H ion exchanger beads. separated the from cathode. The powered photovoltaic panel fed gaseous CO 2 water. Diluted solution produced by flowing water through co...

In this work, we found that sodium doping can be used to improve CO2 selectivity for supported Pt catalyst during methanol steam reforming. These materials are usually very active in the low temperature range; however, they are characterized by high selectivity of CO, which is a poison in downstream polymer electrolyte membrane fuel cells (PEM-FC) application. With Na doping, we found that CO2 ...

Pyruvate formate-lyase activating enzyme utilizes an iron-sulfur cluster and S-adenosylmethionine to generate the catalytically essential glycyl radical on pyruvate formate-lyase. Variable-temperature (4.2200 K) and variable-field (0.05-8 T) Mössbauer spectroscopy has been used to characterize the iron-sulfur clusters present in anaerobically isolated pyruvate formate-lyase activating enzyme an...

Copper(I) complexes of a new participative triphosphane ligand (2H) have been prepared and structurally characterized: in particular, [Cu(2H)I] [Cu(2)]2. Hydrogenation the latter species afforded trimetallic hydride [Cu3(2)2(μ-H)] or, presence BEt3, [Cu(2H)(HBEt3)]. Their formation evidences transient [Cu(2H)H] formed by hydrogenolysis Cu–N bond [Cu(2H)(HBEt3)] behaves like complex inserts CO2 ...

γ-Mg(BH4)2 was found to be a promising material for CO2 recycling (mainly to formate and alkoxide-like compounds). CO2 conversion occurs with unprecedented fast kinetics at 30 °C and 1 bar. A multi-technique approach allowed to attribute the superior performance of γ-Mg(BH4)2 to its large specific surface area.