American Chemical Society - 246th National Meeting and Exposition

Indianapolis, IN

September 8 - 12, 2013

Barron Group Abstracts

212 - CO2 capture with PEI-functionalized nanocarbons

Enrico Andreoli (1),, Eoghan P. Dillon (1), Laurie Cullum (1), Andrew R. Barron (1, 2). (1) Department of Chemistry, Rice University, Houston, TX 77005, United States, (2) Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX 77005, United States

In the race toward the development of high performance C O2 capture materials little attention is being given to a very promising family of materials, the nanocarbons. During the last five years, our group has been working on developing derivatives of nanocarbons with very interesting C O2 capture performance. Polyethyleneimine-functionalized (PEI-) SWNT, MWNT, fluorinated graphite, exfoliated graphite, graphite oxide (GO) and C 6 0 have been synthesized, characterized and tested. All materials showed the ability to absorb C O2 and regenerate at the relatively low temperature of 75 °C . PEI-GO and PEI-SWNT has demonstrated C O2 uptake capacities of 1.8 and 2.1 mmol/g, respectively. Of particular interest, easily synthesized PEI-C 6 0 achieved the highest C O2 capacity of 4.7 mmol/g with wet C O2 at room temperature and atmospheric pressure. PEI-C 6 0 also has the ability to desorb 40 % of the overall captured mass at 25 °C . A detailed study of the kinetics of C O2 absorption is also presented.

Monday, September 9, 2013 02:50 PM

Materials and Technologies for C O2 C apture, Sequestration, and Conversion (01:05 PM - 05:15 PM)

Location: Indiana Convention Center Room: 125