Electrical current stimulated desorption of carbon dioxide adsorbed on graphene based structures

Ritesh Sevanthi, Fahmida Irin, Dorsa Parviz, W. Andrew Jackson, Micah J. Green

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The objective of this study was to investigate Joule heating/electric swing adsorption (ESA) as a mode of regeneration and to compare the carbon dioxide (CO2) adsorption capacity of pristine graphene films and reduced graphene oxide (rGO) aerogels. Joule heating/ESA has not been previously demonstrated in graphene based structures. Various forms of graphene have been previously evaluated for their use as a CO2 adsorbent, but most of these studies have focused on graphene oxide powders and films. We utilize both pristine graphene and rGO; we also highlight regeneration through Joule heating in contrast to heating under vacuum or by pressure swing. The amount of CO2 captured by graphene films and rGO aerogels was 0.52 ± 0.02 and 0.94 ± 0.02 g of CO2 per g of adsorbate, respectively. This adsorption capacity of pristine graphene films and rGO aerogels was found to be stable over multiple samples and multiple cycles of adsorption and electrical current stimulated desorption.

Original languageEnglish
Pages (from-to)43401-43407
Number of pages7
JournalRSC Advances
Volume6
Issue number49
DOIs
StatePublished - 2016

Fingerprint Dive into the research topics of 'Electrical current stimulated desorption of carbon dioxide adsorbed on graphene based structures'. Together they form a unique fingerprint.

Cite this