First assessment of Li2O–Bi2O3 ceramic oxides for high temperature carbon dioxide capture-中国期刊网

摘要 ThecapacitytocaptureCO2wasdeterminedinseveralstoichiometriccompositionsintheLi2O–Bi2O3system.Thecompounds（Li7BiO6,Li5BiO5,Li3BiO4andLiBiO2phases）weresynthesizedviasolid-statereactionandcharacterizedbyX-raydiffraction,scanningelectronmicroscopyandN2adsorptiontechniques.Thesampleswereheat-treatedattemperaturesfrom40to750°CundertheCO2atmospheretoevaluatethecarbonateformation,whichisindicativeofthecapacityofCO2capture.Moreover,Li7BiO6showsanexcellentCO2capturecapacityof7.1mmol/g,whichisconsiderablyhigherthanthoseofotherpreviouslyreportedceramics.Li7BiO6isabletoreactwithCO2from240°Ctoapproximately660°CshowingahighkineticreactionevenatCO2partialpressurevaluesaslowas0.05.

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First assessment of Li2O–Bi2O3 ceramic oxides for high temperature carbon dioxide capture

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First assessment of Li2O–Bi2O3 ceramic oxides for high temperature carbon dioxide capture

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