Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 6, Pages 4371-4381Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am500089g
Keywords
CO2 capture; amine-tethered adsorbents; macroporous silica; flue gas
Funding
- NSF of China [21371105, 51372125]
- NSF of Shandong Province [2009ZRA02071]
- Scientific Development Plan of University in Shandong Province [J09LB53]
- Doctoral Science Foundation of QUST
Ask authors/readers for more resources
New covalently tethered CO2 adsorbents are synthesized through the in situ polymerization of N-carboxyanhydride (NCA) of L-alanine from amine-functionalized three-dimensional (3D) interconnected macroporous silica (MPS). The interconnected macropores provide low-resistant pathways for the diffusion of CO2 molecules, while the abundant mesopores ensure the high pore volume. The adsorbents exhibit high molecular weight (of up to 13058 Da), high amine loading (more than 10.98 mmol N g(-1)), fast CO2 capture kinetics (t(1/2) < 1 min), high adsorption capacity (of up to 3.86 mmol CO2 g(-1) in simulated flue gas and 2.65 mmol CO2 g(-1) in simulated ambient air under 1 atm of dry CO2), as well as good stability over 120 adsorption-desorption cycles, which allows the overall CO2 capture process to be promising and sustainable.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available