title: In situ synthesis of polymer-modified mesoporous carbon CMK-3 composites for CO2 sequestration.
abstract: Here we report carbon-based composites polyethylenimine-mesocarbon (PEI-CMK-3) and polyvinylamine-mesocarbon (PVA-CMK-3) that can be used to capture and rapidly release CO(2). CO(2) uptake by the synthesized composites was determined using a gravimetric method at 30 °C and 1 atm; the 39% PEI-CMK-3 composite had ~12 wt % CO(2) uptake capacity and the 37% PVA-CMK-3 composite had ~13 wt % CO(2) uptake capacity. A desorption temperature of 75 °C was sufficient for regeneration. The CO(2) uptake was the same when using 10% CO(2) in a 90% CH(4), C(2)H(6), and C(3)H(8) mixture, underscoring this composite's efficacy for CO(2) sequestration from natural gas.
authors.affiliation: Department of Chemistry, Rice University, Houston, Texas 77251, USA.
authors.forename: Chih-Chau
authors.initials: CC
authors.lastname: Hwang
authors.forename: Zhong
authors.initials: Z
authors.lastname: Jin
authors.forename: Wei
authors.initials: W
authors.lastname: Lu
authors.forename: Zhengzong
authors.initials: Z
authors.lastname: Sun
authors.forename: Lawrence B
authors.initials: LB
authors.lastname: Alemany
authors.forename: Jay R
authors.initials: JR
authors.lastname: Lomeda
authors.forename: James M
authors.initials: JM
authors.lastname: Tour
mesh_terms: D000327:Adsorption; D000393:Air Pollutants / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000295:instrumentation*; D010316:Particle Size; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D000393:Air Pollutants; D011108:Polymers; D002245:Carbon Dioxide; D002244:Carbon