College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
J Nanosci Nanotechnol. 2019 Jun 1;19(6):3205-3209. doi: 10.1166/jnn.2019.16609.
This study focuses on the synergy effect of pore size and specific surface area (SSA) on the carbon dioxide sorption performance. Nano CaO-based CO₂ sorbents with various pore size (15-55 nm) under similar SSA, and different SSA (14.50-48.90 m²/g) under similar pore size are prepared using selected organic templates. Results indicate that increasing the proportion of macropore in 47-96 nm could significantly improve sorbent's sorption rate and corresponding sorption capacity. Besides, sorption capacity could be also by SSA. Moreover, partial correlation analysis reveals that sorption capacity is slightly more dependent on average pore size than SSA.
本研究关注孔径和比表面积（SSA）协同效应对二氧化碳吸附性能的影响。使用选定的有机模板，制备了具有相似 SSA（14.50-48.90 m²/g）但孔径不同（15-55nm）的纳米 CaO 基 CO₂吸附剂，以及孔径相似但 SSA 不同的纳米 CaO 基 CO₂吸附剂。结果表明，增加 47-96nm 范围内大孔的比例可以显著提高吸附剂的吸附速率和相应的吸附容量。此外，吸附容量也可以通过 SSA 来实现。此外，偏相关分析表明，吸附容量对平均孔径的依赖程度略高于 SSA。
