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Pentaethylenehexamine-C60 for Temperature Consistent Carbon Capture / Thales Fabiano, Vanessa Soares, Enrico Andreoli

C—Journal of Carbon Research, Volume: 1, Issue: 1, Pages: 16 - 26

Swansea University Author: Enrico Andreoli

DOI (Published version): 10.3390/c1010016

Abstract

Fullerene C60 is directly added to and reacted with plain pentaethylenehexamine (PEHA) to give PEHA-functionalized C60 powders. The CO2 capture performance of PEHA-C60 appears to be consistent across a range of temperatures wider than that of polyethyleneimine (PEI)-modified C60, whose high CO2 capt...

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Published in: C—Journal of Carbon Research
Published: 2015
Online Access: http://www.mdpi.com/search?q=&journal=carbon&sort=pubdate&page_count=50
URI: https://cronfa.swan.ac.uk/Record/cronfa28286
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Abstract: Fullerene C60 is directly added to and reacted with plain pentaethylenehexamine (PEHA) to give PEHA-functionalized C60 powders. The CO2 capture performance of PEHA-C60 appears to be consistent across a range of temperatures wider than that of polyethyleneimine (PEI)-modified C60, whose high CO2 capture performance drops rapidly with decreasing temperature. At about 30 °C, the CO2 capture capacity of PEHA-C60 is six times higher, 65 mg CO2/g sorbent, than that of PEI-C60, 10 mg/g. In contrast to PEI, PEHA reacts with C60 to form products of greater porosity and smaller particles size that allow for a faster contact between CO2 and amine functions. This in turns translates into a lower energy requirement for CO2 sorption and desorption.
Keywords: CO2 capture; fullerene C60; pentaethylenehexamine
College: College of Engineering
Issue: 1
Start Page: 16
End Page: 26