Pentaethylenehexamine-C60 for Temperature Consistent Carbon Capture

C—Journal of Carbon Research

Thales Albuquerque Fabiano¹  Vanessa Pavanelo Soares¹  Enrico Andreoli¹ 

[1] Energy Safety Research Institute, Swansea University, Bay Campus, Swansea SA1 8QQ, UK; E-Mails:

关键词: CO₂ capture;    fullerene C₆₀;    pentaethylenehexamine;   

DOI  :  10.3390/c1010016

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.