First assessment of Li_(2)O–Bi_（2）O_（3） ceramic oxides for high temperature carbon dioxide capture

作     者：E.M.Briz-Lopez M.J.Ramirez-Moreno I.C.Romero-Ibarra C.Gomez-Yanez H.Pfeiffer J.Ortiz-Landeros 

作者机构：Departamento de Ingenieria en Metalurgia y MaterialesEscuela Superior de Ingenieria Quimica e Industrias ExtractivasIPNUPALMAv. Instituto Politecnico Nacional s/n，CP 07738 Mexico DF Mexico Instituto de Investigaciones en MaterialesUniversidad Nacional Autonoma de MexicoCircuito exterior s/nCd Universitaria Del. Coyoacan CP 04510Mexico DF Mexico Unidad Profesional Interdisciplinaria en Ingenieria y Tecnologias AvanzadasIPNAv. Instituto Politecnico Nacional No. 2580 CP 07340 Mexico DE Mexico 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2016年第25卷第5期

页      面：754-760页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 07[理学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：the SIP-IPN 20 151 545 Project 

主　　题：CO2捕获 LI7BIO6 铋酸锂 热分析 

摘      要：The capacity to capture CO_2 was determined in several stoichiometric compositions in the Li_2O–Bi_2O_3 system. The compounds(Li_7BiO_6, Li_5BiO_5, Li_3BiO_4 and LiBiO_2 phases) were synthesized via solid-state reaction and characterized by X-ray diffraction, scanning electron microscopy and N2 adsorption *** samples were heat-treated at temperatures from 40 to 750 °C under the CO_2 atmosphere to evaluate the carbonate formation, which is indicative of the capacity of CO_2 capture. Moreover, Li_7BiO_6 shows an excellent CO_2 capture capacity of 7.1 mmol/g, which is considerably higher than those of other previously reported ceramics. Li_7BiO_6 is able to react with CO_2 from 240 °C to approximately 660 °C showing a high kinetic reaction even at CO_2 partial pressure values as low as 0.05.