Melamine-based resins and their carbons for CO2 capture: a review

Autor: Reddithota J. Krupadam, Sadhana Rayalu
Rok vydání: 2021
Předmět:
Zdroj: Emergent Materials. 4:545-563
ISSN: 2522-574X
2522-5731
Popis: The global atmospheric CO2 concentration has reached 420 ppm in 2020 from 280 ppm in the 1970s at a rapid pace leading to adverse climate change impacts. As per the date, CO2 capture by amine scrubbers is the prominent commercially available technology. The limitations of this technology include high operating costs, high energy penalties, amine emissions, and corrosion of scrubbing containers. Recent reports on solid adsorbents such as zeolites, inorganic and organic frameworks, and activated carbon have shown meritorious potential for CO2 capture. Specifically, melamine is a cost-effective and nitrogen-rich compound which enriches basic functionalities in the polymer or other adsorbents which facilitates specific interaction with CO2. The nitrogen-enriched carbons were prepared from melamine-based polymers using different chemical activation procedures which have reported highly selective CO2 adsorption. The effect of carbonization on surface properties such as surface area, pore volume, and thermal stability and surface basicity of different adsorbents was discussed. A detailed review was carried out specifically for melamine-based polymer and their carbons for CO2 capture applications.
Databáze: OpenAIRE