@article{5b858f8b532e49f3ad4a353c0dd726e2,
title = "System Design Rules for Intensifying the Electrochemical Reduction of CO2 to CO on Ag Nanoparticles",
abstract = "Electroreduction of CO2 (eCO2RR) is a potentially sustainable approach for carbon-based chemical production. Despite significant progress, performing eCO2RR economically at scale is challenging. Here we report meeting key technoeconomic benchmarks simultaneously through electrolyte engineering and process optimization. A systematic flow electrolysis study - performing eCO2RR to CO on Ag nanoparticles as a function of electrolyte composition (cations, anions), electrolyte concentration, electrolyte flow rate, cathode catalyst loading, and CO2 flow rate - resulted in partial current densities of 417 and 866 mA/cm2 with faradaic efficiencies of 100 and 98 % at cell potentials of −2.5 and −3.0 V with full cell energy efficiencies of 53 and 43 %, and a conversion per pass of 17 and 36 %, respectively, when using a CsOH-based electrolyte. The cumulative insights of this study led to the formulation of system design rules for high rate, highly selective, and highly energy efficient eCO2RR to CO.",
keywords = "carbon dioxide electroreduction, electrolyte engineering, nanoparticles, process intensification, silver",
author = "Bhargava, {Saket S.} and Federica Proietto and Daniel Azmoodeh and Cofell, {Emiliana R.} and Henckel, {Danielle A.} and Sumit Verma and Brooks, {Christopher J.} and Gewirth, {Andrew A.} and Kenis, {Paul J.A.}",
note = "Funding Information: This work was supported by a grant provided by the Honda Research Institute (USA). The authors would like to thank the SCS Machine Shop for the in‐house cell fabrication. S.S.B. gratefully acknowledges support through a 3 M Corporate Fellowship. S.S.B. and P.J.A.K would also like to thank Prof. David W. Flaherty for insightful discussions. E.R.C. and D.A.H. gratefully acknowledge Shell's New Energy Research and Technology (NERT) Dense Energy Carriers program. Funding Information: This work was supported by a grant provided by the Honda Research Institute (USA). The authors would like to thank the SCS Machine Shop for the in-house cell fabrication. S.S.B. gratefully acknowledges support through a 3 M Corporate Fellowship. S.S.B. and P.J.A.K would also like to thank Prof. David W. Flaherty for insightful discussions. E.R.C. and D.A.H. gratefully acknowledge Shell's New Energy Research and Technology (NERT) Dense Energy Carriers program. Publisher Copyright: {\textcopyright} 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2020",
month = may,
day = "4",
doi = "10.1002/celc.202000089",
language = "English (US)",
volume = "7",
pages = "2001--2011",
journal = "ChemElectroChem",
issn = "2196-0216",
publisher = "John Wiley & Sons, Ltd.",
number = "9",
}