Ni–N synergy enhanced the synthesis of formic acid via CO₂ hydrogenation under mild conditions

Abstract

The direct CO2 hydrogenation to formic acid is appealing since it is a potential hydrogen storage material and can be a precursor of higher value-added products. Due to thermodynamic limitations,...

Sorption enhanced CO2 hydrogenation to formic acid over CuZn-MOF derived catalysts

“…As documented in the literature, CO 2 can undergo hydrogenation to produce formic acid through two alternate pathways involving intermediate species, specifically formate (HCOO) and carboxylate (COOH). 78,79 In the ensuing step, an individual hydrogen atom can bind to the carbon (C) atom of CO 2 to yield the HCOO intermediate (Fig. 9; 3.1 → 4.1) or alternatively form a bond with the nearest oxygen (O) atom of CO 2 , resulting in the COOH intermediate (Fig.…”

Hydrodeoxygenation of Fatty Acid Esters over Nitrogen-Functionalized Bimetallic Oxides Catalyst

“…Phosphotungstic acid, as a solid acid with strong acidity, is often used for catalyst modification. Besides, nitrogen-functionalized and nitrogen-doped is another common method of carrier modification, which can enhance the interaction between carriers and molecules, especially pyridinic-N species. , For example, Ni–N/TiO 2 catalyst showed lower activation energy in the direct hydrogenation of CO 2 to formic acid than that of Ni/TiO 2 catalyst . To develop nonsulfide, inexpensive, and efficient catalyst, for the first time, a kind of bimetallic catalyst containing nitrogen was introduced and applied in the thermal catalytic HDO process.…”

“…34,35 For example, Ni−N/TiO 2 catalyst showed lower activation energy in the direct hydrogenation of CO 2 to formic acid than that of Ni/ TiO 2 catalyst. 36 To develop nonsulfide, inexpensive, and efficient catalyst, for the first time, a kind of bimetallic catalyst containing nitrogen was introduced and applied in the thermal catalytic HDO process.…”