Your browser doesn't support javascript.
loading
Accelerated Oxidative Degradation of Phosphonium-Type Ionic Liquid with l-Prolinate Anion: Degradation Mechanism and CO2 Separation Performance.
Sei, Hiroi; Kanasaki, Yu Nagai; Oka, Kouki; Tohnai, Norimitsu; Kohno, Yuki; Makino, Takashi.
Afiliación
  • Sei H; National Institute of Advanced Industrial Science and Technology (AIST), 4-2-1, Nigatake, Miyagino-Ku, Sendai 983-8551, Japan.
  • Kanasaki YN; Department of Applied Chemistry and Center for Future Innovation (CFi), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
  • Oka K; National Institute of Advanced Industrial Science and Technology (AIST), 4-2-1, Nigatake, Miyagino-Ku, Sendai 983-8551, Japan.
  • Tohnai N; Department of Applied Chemistry and Center for Future Innovation (CFi), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
  • Kohno Y; Department of Applied Chemistry and Center for Future Innovation (CFi), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
  • Makino T; National Institute of Advanced Industrial Science and Technology (AIST), 4-2-1, Nigatake, Miyagino-Ku, Sendai 983-8551, Japan.
ACS Omega ; 8(23): 21154-21161, 2023 Jun 13.
Article en En | MEDLINE | ID: mdl-37332785
Amino acid ionic liquids (AAILs) are regarded as green alternatives to existing CO2-sorptive materials because amino acids are readily available from renewable sources in large quantities. For widespread applications of AAILs, including direct air capture, the relationship between the stability of AAILs, especially toward O2, and the CO2 separation performance is of particular importance. In the present study, the accelerated oxidative degradation of tetra-n-butylphosphonium l-prolinate ([P4444][Pro]), a model AAIL that has been widely investigated as a CO2-chemsorptive IL, is performed using a flow-type reactor system. Upon heating at 120-150 °C and O2 gas bubbling to [P4444][Pro], both the cationic and anionic parts undergo oxidative degradation. The kinetic evaluation of the oxidative degradation of [P4444][Pro] is performed by tracing the decrease in the [Pro]- concentration. Supported IL membranes composed of degraded [P4444][Pro] are fabricated, and the membranes retain CO2 permeability and CO2/N2 selectivity values in spite of the partial degradation of [P4444][Pro].
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Omega Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Omega Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos