Synthesis Metal-Doped Mesoporous Resin for Carbon Dioxide Capturing and Electrochemical Conversion

While global warming is a pressing issue in the news today, there still isn’t enough being done to reverse the harmful effects of greenhouse gases like carbon dioxide. Lack of economically benefits for the removal of carbon dioxide is due to the absence of a promising catalyst. In this research, a single stage of the solvothermal method was used to synthesize mesoporous resin (MR) without any sacrificing templates. Resorcinol and formaldehyde used as a cost-effective precursor. The ethanolic solution of polyethyleneimine (PEI) was used to provide amide groups and mesoporous structure in resorcinol- formaldehyde template-free resin. Also, Cobalt (II) acetylacetonate and Ni (II) acetylacetonate were added to extend our studies in adsorption to the catalytic electrochemical conversion of CO2. BET surface analysis confirmed increasing of surface area by adding the ethanolic solution of PEI. This amid group been known to be excellent at capturing carbon dioxide, furthermore increasing surface area. MR’s surface area is 325.75 m /g. The resulting material shows promising CO2 capture performance, reaching equilibrium adsorption of 1.1 mmol CO2 /g of material at 0 centigrade and a p of 1 bar. Also, metal ions not only increased surface area but also enhance carbon dioxide adsorption. The results showed cobalt one had the highest surface area and thermal stability (Co-MR (cobalt 3% w/w) BET surface area 675.62 m2/g, TG =450 centigrade).

Consequently, adsorption of 2.1 mmol CO /g of material at 0 centigrade a P of 1 bar exhibited. However, Ni-MR has highest electrochemical conversion. This mesoporous polymer is promising for CO capture and conversion due to their chemical inertness, low cost, high surface area, tunable pore structure, and ease of functionalization by the metal ion.