Here we report an all-solid-state electrochemical CO2RR system for continuous generation of high-purity and high-concentration formic acid vapors and solutions. The cathode and anode were separated by a porous solid electrolyte (PSE) layer, where electrochemically generated formate and proton were ...
Chemistry and spectroscopy in strongly acidic solutions. Part III: Formation of two different entities on protonation of formic acidIt has been shown by NMR spectroscopy that protonation of formic acid in HF-BF3 solution leads to an equilibrium mixture of two different proton adducts, which probably...
In the drybox under nitrogen, complex1(10 mg, 14.9 μmol) was dissolved in 0.6 ml dichloromethane-d2in a J-Young NMR tube. Dry acetic acid (8.6 μl, 149 μmol) was also added to this solution. The tube was then degassed, put under 1 atm head pressure of H2gas,...
It has been shown by NMR spectroscopy that protonation of formic acid in HF-BF3 solution leads to an equilibrium mixture of two different proton adducts, which probably differ in the configuration around the partly double carbon-oxygen bond. Diffusion-controlled proton transfer reactions take place ...
proton magnetic resonance/ formic acid-amine complexesH bondstrimethylamine- 15N-d q1H NMR spectrafreonsspin-spin structure1:1 ion pairWe examined two methods of combining catch-and-effort data from small geographic regions into large regulatory areas to estimate catch-per-unit-effort (CPUE): (...
proton spin-spin coupling valuesfast intermolecular proton exchangeNMR spectraproton acceptorshydrofuranhexamethylphosphortriamideformic acid complexes/ A3325 Nuclear magnetic resonance and relaxation in moleculesNot Availabledoi:10.1016/0022-2860(81)85247-7N.S. Golubev...
The interaction between formic acid (AH) and n-butanol (BH) in strongly diluted solutions has been studied by means of I H NMR and IR spectroscopy over the temperature range from 300 down to 80 K. A simple complex, AH·BH, its cyclic dimer, (AH·BH) 2 , as well as another cyclic...
The mixed acid lignin (MAL) and the solid residues were subjected to comprehensive structural characterization by Fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1H-NMR), X-ray diffraction (XRD), and scanning electron microscope (SEM). At ...
Formic acid (FA) is a promising hydrogen carrier that can play an instrumental role in the overall implementation of a hydrogen economy. In this regard, it is important to generate H2 gas from neat FA without any solvent and/or additive, for which existi
The final yield of formic acid was determined by 1H NMR spectroscopy with DSS as an internal standard. The values are averaged from three to six measurements with a reproducibility of ±15%. The trend line is shown as a guide and is not a mathematical fit of the data. Full size image ...