title: Nanostructured transition metal dichalcogenide electrocatalysts for CO2 reduction in ionic liquid.
abstract: Conversion of carbon dioxide (CO2) into fuels is an attractive solution to many energy and environmental challenges. However, the chemical inertness of CO2 renders many electrochemical and photochemical conversion processes inefficient. We report a transition metal dichalcogenide nanoarchitecture for catalytic electrochemical CO2 conversion to carbon monoxide (CO) in an ionic liquid. We found that tungsten diselenide nanoflakes show a current density of 18.95 milliamperes per square centimeter, CO faradaic efficiency of 24%, and CO formation turnover frequency of 0.28 per second at a low overpotential of 54 millivolts. We also applied this catalyst in a light-harvesting artificial leaf platform that concurrently oxidized water in the absence of any external potential.
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Asadi
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA. Department of Mechanical Engineering, Chungbuk National University, Cheongju 361-763, South Korea.
authors.forename: Kibum
authors.initials: K
authors.lastname: Kim
authors.affiliation: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA.
authors.forename: Cong
authors.initials: C
authors.lastname: Liu
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA.
authors.forename: Aditya Venkata
authors.initials: AV
authors.lastname: Addepalli
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA.
authors.forename: Pedram
authors.initials: P
authors.lastname: Abbasi
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA.
authors.forename: Poya
authors.initials: P
authors.lastname: Yasaei
authors.affiliation: Department of Physics, University of Illinois at Chicago, Chicago, IL 60607, USA.
authors.forename: Patrick
authors.initials: P
authors.lastname: Phillips
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA.
authors.forename: Amirhossein
authors.initials: A
authors.lastname: Behranginia
authors.affiliation: Department of Civil Engineering, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: José M
authors.initials: JM
authors.lastname: Cerrato
authors.affiliation: Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Richard
authors.initials: R
authors.lastname: Haasch
authors.affiliation: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA.
authors.forename: Peter
authors.initials: P
authors.lastname: Zapol
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA. Conn Center for Renewable Energy Research, University of Louisville, Louisville, KY 40292, USA.
authors.forename: Bijandra
authors.initials: B
authors.lastname: Kumar
authors.affiliation: Department of Physics, University of Illinois at Chicago, Chicago, IL 60607, USA.
authors.forename: Robert F
authors.initials: RF
authors.lastname: Klie
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA.
authors.forename: Jeremiah
authors.initials: J
authors.lastname: Abiade
authors.affiliation: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA. salehikh@uic.edu curtiss@anl.gov.
authors.forename: Larry A
authors.initials: LA
authors.lastname: Curtiss
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Illinois, Chicago, IL 60607, USA. salehikh@uic.edu curtiss@anl.gov.
authors.forename: Amin
authors.initials: A
authors.lastname: Salehi-Khojin