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Bifunctional Gas Diffusion Electrode Enables In Situ Separation and Conversion of CO2 to Ethylene from Dilute Stream.
Nabil, Shariful Kibria; Roy, Soumyabrata; Algozeeb, Wala Ali; Al-Attas, Tareq; Bari, Md Abdullah Al; Zeraati, Ali Shayesteh; Kannimuthu, Karthick; Demingos, Pedro Guerra; Rao, Adwitiya; Tran, Thien N; Wu, Xiaowei; Bollini, Praveen; Lin, Haiqing; Singh, Chandra Veer; Tour, James M; Ajayan, Pulickel M; Kibria, Md Golam.
Afiliación
  • Nabil SK; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada.
  • Roy S; Department of Materials Science and NanoEngineering, Rice University, 6100 Main St., Houston, TX, 77030, USA.
  • Algozeeb WA; Department of Chemistry, Rice University, 6100 Main St., Houston, TX, 77030, USA.
  • Al-Attas T; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada.
  • Bari MAA; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada.
  • Zeraati AS; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada.
  • Kannimuthu K; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada.
  • Demingos PG; Department of Materials Science and Engineering, University of Toronto, 27 King's College Cir, Toronto, Ontario, M5S 1A1, Canada.
  • Rao A; Department of Materials Science and Engineering, University of Toronto, 27 King's College Cir, Toronto, Ontario, M5S 1A1, Canada.
  • Tran TN; Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, 14260, USA.
  • Wu X; William A. Brookshire Department of Chemical & Biomolecular Engineering, University of Houston, 4226 Martin Luther King Boulevard, Houston, TX, 77204, USA.
  • Bollini P; William A. Brookshire Department of Chemical & Biomolecular Engineering, University of Houston, 4226 Martin Luther King Boulevard, Houston, TX, 77204, USA.
  • Lin H; Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY, 14260, USA.
  • Singh CV; Department of Materials Science and Engineering, University of Toronto, 27 King's College Cir, Toronto, Ontario, M5S 1A1, Canada.
  • Tour JM; Department of Chemistry, Rice University, 6100 Main St., Houston, TX, 77030, USA.
  • Ajayan PM; Department of Materials Science and NanoEngineering, Rice University, 6100 Main St., Houston, TX, 77030, USA.
  • Kibria MG; Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N 1N4, Canada.
Adv Mater ; 35(24): e2300389, 2023 Jun.
Article en En | MEDLINE | ID: mdl-36943940
The requirement of concentrated carbon dioxide (CO2 ) feedstock significantly limits the economic feasibility of electrochemical CO2 reduction (eCO2 R) which often involves multiple intermediate processes, including CO2 capture, energy-intensive regeneration, compression, and transportation. Herein, a bifunctional gas diffusion electrode (BGDE) for separation and eCO2 R from a low-concentration CO2 stream is reported. The BGDE is demonstrated for the selective production of ethylene (C2 H4 ) by combining high-density-polyethylene-derived porous carbon (HPC) as a physisorbent with polycrystalline copper as a conversion catalyst. The BGDE shows substantial tolerance to 10 vol% CO2 exhibiting a Faradaic efficiency of ≈45% toward C2 H4 at a current density of 80 mA cm-2 , outperforming previous reports that utilized such partial pressure (PCO2 = 0.1 atm and above) and unaltered polycrystalline copper. Molecular dynamics simulation and mixed gas permeability assessment reveal that such selective performance is ensured by high CO2 uptake of the microporous HPC as well as continuous desorption owing to the molecular diffusion and concentration gradient created by the binary flow of CO2 and nitrogen (CO2 |N2 ) within the sorbent boundary. Based on detailed techno-economic analysis, it is concluded that this in situ process can be economically compelling by precluding the C2 H4 production cost associated with the energy-intensive intermediate steps of the conventional decoupled process.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2023 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Alemania
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: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2023 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Alemania