Electrochemical Conversion of CO 2 to 2-Bromoethanol in a Membraneless Cell

Shenghong Zhong, Zhen Cao, Xiulin Yang, Sergey M. Kozlov, Kuo Wei Huang, Vincent Tung, Luigi Cavallo, Lain Jong Li*, Yu Han

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Tremendous research efforts have been made to electrochemically convert CO 2 into useful chemicals, with the main products being limited to hydrocarbons and oxygenates. One-step processes that integrate CO 2 reduction with a subsequent reaction to produce other types of functional chemicals are economically attractive. Here we report that direct electrochemical conversion of CO 2 to 2-bromoethanol, a valuable pharmaceutical intermediate, is enabled by coupling the anodic and cathodic reactions with the presence of potassium bromide electrolyte in a membraneless electrochemical cell. The maximum Faradaic efficiency of converting CO 2 to 2-bromoethanol that we achieved is 40% at 1.01 V RHE with a partial current density of 19 mA cm -2 . Our work demonstrates a new strategy for making value-added products from CO 2 through a simple process.

Original languageEnglish (US)
Pages (from-to)600-605
Number of pages6
JournalACS Energy Letters
Volume4
Issue number2
DOIs
StatePublished - Feb 8 2019

Bibliographical note

Publisher Copyright:
© 2019 American Chemical Society.

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

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