Highly efficient CO₂ capture with a metal–organic framework‐derived porous carbon impregnated with polyethyleneimine

Abstract

Global warming is considered as one of the great challenges of the twenty‐first century. Application of CO2 capture and storage technologies to flue gas is considered to be a useful method of lessening global warning. Highly porous carbon has played an important role in tackling energy and environmental problems. We attempted to synthesize a highly porous carbon adsorbent by carbonizing a highly crystalline metal–organic framework (MOF) without any carbon precursors and focused on the adsorption of CO2 and CH4 gases and CO2/CH4 selectivity at 298, 323 and 348 K using a volumetric apparatus. The MOF‐derived porous carbon (MDC) was prepared by direct carbonization of MOF‐199 as a template at 900 °C under nitrogen atmosphere. Amino‐impregnated MDC samples exhibited enhanced adsorption capacities by a combination of physical and chemical adsorption. Polyethyleneimine (PEI) was selected as the amine source, which was found to greatly enhance CO2 capture when supported on the porous carbon. Novel PEI‐impregnated MDC nanocomposites were synthesized by wetness impregnation and then characterized using various methods.

Fast recovery of Au (III) and Ag(I) via amine‐modified zeolitic imidazolate framework‐8

“…In recent years, metal organic frameworks (MOFs) have attracted extensive attention for their potential applications in gas storage and separation . Zeolitic imidazolate frameworks (ZIFs), a sub‐family of MOFs, combine the good properties of zeolites and MOFs, including permanent porosity, and diverse structures, chemical hardness and thermal stability.…”

Carbon Dioxide Capture through Physical and Chemical Adsorption Using Porous Carbon Materials: A Review

“…Three feasible strategies to reduce CO 2 emissions are exhibited by the modified Kaya identity as expressed in equation ( 1) [35]. They are namely, (i) improving the energy efficiency of coal-fired plants [40,41], (ii) change of the fossil fuels to renewable and carbon-free energy resources [42], and (iii) utilization of carbon capture and storage (CCS) technologies [35,43,44].…”

“…Apart from the above-mentioned three strategies, enhancing partial pressure in exhaust gas [43], geoengineering approaches including afforestation and reforestation [45], flue gas separation, and carbon mineralization [46] can also be considered. Among the different CO 2 mitigation options, IPCC has suggested CCS as a promising technology for achieving a 19% reduction of global CO 2 emissions by 2050 [41]. CCS can reduce CO 2 emissions (typically 85-90%) from significant stationary point sources such as power plants, cement kilns, and NG wells [25,47].…”

“…CCS can reduce CO 2 emissions (typically 85-90%) from significant stationary point sources such as power plants, cement kilns, and NG wells [25,47]. Nevertheless, CCS is considered a mid-term solution in reducing global warming, climate change, and simultaneously allowing humans to continue using fossil fuels until a renewable and clean energy source is discovered to replace them [41]. CCS is comprised of three significant steps, namely, (i) capture of emitted CO 2 from power plants and industrial processing without releasing them into the atmosphere, (ii) transportation of the captured and compressed CO 2 , and (iii) underground storage of the captured CO 2 [33,48,49].…”

Effect of Synthesis Method on the Catalytic Performance of Ca-Mg-Al Mixed Metal Oxide Nanocatalyst for Biodiesel Production from Waste Cooking Oil

“…It has become essential to find clean alternative and renewable energy resources because of the limited conventional fossil fuels, harmful environmental impacts, and severe climate changes [1][2][3]. Biodiesel is termed as a viable substitute to petroleum-based diesel that can reduce or solve the effects of air pollution due to various desired properties including its renewability and better combustion characteristics [4].…”