A novel (Zr–Ce) incorporated Ca(OH)2 nanostructure as a durable adsorbent for CO2 capture

• Published in: Materials letters Vol. 133; pp. 204 - 207
• Main Authors: Hlaing, New Ni, Sreekantan, Srimala, Othman, Radzali, Hinode, Hirofumi, Kurniawan, Winarto, Thant, Aye Aye, Mohamed, Abdul Rahman, Salim, Chris
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15-10-2014
• Subjects: (Zr–Ce) incorporated Ca(OH)2; Adsorbent; Adsorbents; Calcination; Carbon capture and storage; Carbon dioxide; Carbonation; Conversion; Durability; Nanostructure; Sintering; Thermal analysis; Zirconium; (Zr–Ce) incorporated Ca(OH)2; Thermal analysis; Adsorbent; Conversion; Sintering
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2014.07.043

A novel high-efficiency (Zr–Ce) incorporated Ca(OH)2 nanostructure adsorbent for CO2 capture was synthesized using calcium acetate monohydrate precursor containing n-hexadecyltrimethyl ammonium bromide and sodium hydroxide via a precipitation method. The cyclic carbonation/calcination performance of the novel adsorbent was investigated using a thermogravimetry-differential thermal analysis (TG-DTA) apparatus. The novel (Zr–Ce) incorporated Ca(OH)2 adsorbent exhibited a significantly improved CO2 adsorption capacity, cyclic stability and remarkable carbonation conversion up to ~96% for 14 carbonation/calcination cycles compared with the pure Ca(OH)2 adsorbent. This result may be due to the large Brunauer–Emmett–Teller (BET) surface area (80.23m2/g), the wide range of mesopore size distribution (2–30nm) and the presence of the high temperature sintering resistance Ce2Zr3O10 compound of the novel adsorbent.
•Synthesis of (Zr–Ce) incorporated Ca(OH)2 adsorbent via a facile precipitation method.•To develop a new regenerable and durable adsorbent for CO2 capture with greater efficiency.•To compare with the pure Ca(OH)2 adsorbent.