Superior CO2 uptake of N-doped activated carbon through hydrogen-bonding interaction

作者：Wei Xing, Chao Liu, Ziyan Zhou, Lei Zhang, Jin Zhou, Shuping Zhuo, Zifeng Yan, Hong Gao, Guiqiang Wang, Shi‐Zhang Qiao · 发表于：Energy & Environmental Science · 年份：2012 · DOI：10.1039/c2ee21653a · 被引用次数：498 · 研究领域：Membrane Separation and Gas Transport、Covalent Organic Framework Applications、Carbon Dioxide Capture Technologies

Here we show that the introduction of N into a carbon surface facilitates the hydrogen-bonding interactions between the carbon surface and CO2 molecules, which accounts for the superior CO2 uptake of the N-doped activated carbons. This new finding challenges the long-held viewpoint that acid–base interactions between N-containing basic functional groups and acidic CO2 gas are responsible for the enhanced CO2 capture capacity of N-doped carbons.