Dehydrogenation of Formic Acid by a Ru^II Half Sandwich Catalyst

Abstract

Dehydrogenation of formic acid is an emerging domain in the sustainable energy system. In this study a half-sandwich [Ru(η 6benzene)(hdm)]BF 4 [Ru-hdm] complex (hdm = hydroxydi (pyridine-2-yl)methanolate) has been synthesized and characterized through various spectroscopic techniques. The [Ruhdm] has been used to dehydrogenate formic acid in simple water using sodium formate (HCOONa) as a base has also been depicted in this study. The [Ru-hdm] complex is a descent catalyst towards dehydrogenation of formic acid into carbon dioxide and hydrogen in 1 : 1 ratio, which has been detected by gas chromatography.

Formic acid dehydrogenation by [Ru(η6-benzene)(L)Cl] catalysts: L = 2-methylquinolin-8-olate and quinolin-8-olate

“…In this work, we have compared some reported catalysts under similar conditions with catalysts 1 and 2 using the differential pressure manometer. 32 The differential manometer exhibits the pressure difference between the working and the reference part. The working and reference compartments were under isothermal conditions, and jacketed cells were used for catalysis (Fig.…”

Formate dehydrogenase activity by a Cu(ii)-based molecular catalyst and deciphering the mechanism using DFT studies

“…S9 †). [40][41][42] Various concentrations of acid, base and catalyst, as well as various temperatures, were used to investigate the catalyst for dehydrogenation. At a constant temperature of 50 °C, the reaction rate was reliant on the concentration of the substrates and catalysts.…”

“…Recently, our group reported the dehydrogenation of formic acid using Rubased homogeneous catalysts using manometry and gas chromatography. [40][41][42] To explore the non-noble metal-based catalysts for formic acid dehydrogenation, we diligently investigated the catalytic efficiency by employing a Cu(II) complex with a polypyridyl ligand. Herein, the dehydrogenation of FA has been depicted utilizing a novel catalyst [Cu(N3Q3)Cl]Cl (N,N-bis(quinolin-8-ylmethyl)quinolin-8-amine = N3Q3), and the mechanism has been deduced via DFT studies.…”

Cyclic Amide-Anchored NHC-Based Cp*Ir Catalysts for Bidirectional Hydrogenation–Dehydrogenation with CO2/HCO2H Couple

“…With these couples, not only an effective carbon-neutral H 2 -based fuel system but also the carbon capture and utilization (CCU) protocol can be implemented at a time. − Obviously, to materialize such systems, among other factors, developing efficient catalysts for bidirectional CO 2 (or HCO 3 – ) hydrogenation and HCO 2 H (or HCO 2 – ) dehydrogenation is equally important. In the domain of homogeneous transition metal-based catalysis, although a great advancement has already been achieved for the individual hydrogenation − and dehydrogenation − reactions with two different catalysts, there are only a limited number of reports in the literature describing both the processes using a single catalyst. − Among these, some catalysts are relatively more active in hydrogenation than dehydrogenation, , while some others are the opposite. ,,, Single bidirectional transition metal catalysts, which are highly efficient in both hydrogenation and dehydrogenation, are so far designed with phosphine-based (PNP pincer) or N , N -donor-based ligands (Figure B).…”