Ammonia modification of activated carbon to enhance carbon dioxide adsorption: Effect of pre-oxidation

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Biochar applications and modern techniques for characterization (2016, methodology): “Proximate analysis is carried out with the aid of TGA to determine the amount of ash and volatile matter (Shafeeyan et al. 2011).”
A review of mathematical modeling of fixed-bed columns for carbon dioxide adsorption (2014, background): “However, this process is energy-intensive during the regeneration of solvent and is also plagued by extensive corrosion of the process equipment (Chue et al., 1995; Gray et al., 2004, 2005; Ko et al., 2005; Shafeeyan et al., 2011).”
Evaluation of CO2 adsorption with eucalyptus wood based activated carbon modified by ammonia solution through heat treatment (2014, methodology): “The decrease in the BET surface area of AC-NH-400 sample can be 17 attributed to the oxidation reaction which can lead to the collapse of some pore wall or 18 partially blockage of the micropore entrances by decomposed products formed during heat 19 treatment with ammonia [5, 19, 20].”
Assessment of porous carbons derived from sustainable palm solid waste for carbon dioxide capture (2014, unknown): “Performance of impregnated and virgin palm shell activated carbon for CO2 adsorption had also been reported previously (Lee et al., 2013; Shafeeyan et al., 2011).”