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Can I read Insights into the Low Overpotential Electroreduction of CO~2~ to CO on a Supported Gold Catalyst in an Alkaline Flow Electrolyzer on EtoBox?
Insights into the Low Overpotential Electroreduction of CO~2~ to CO on a Supported Gold Catalyst in an Alkaline Flow Electrolyzer by Sumit Verma; Yuki Hamasaki; Chaerin Kim; Wenxin Huang; Shawn Lu; Huei-Ru Molly Jhong; Andrew A. Gewirth; Tsuyohiko Fujigaya; Naotoshi Nakashima; Paul J. A. Kenis is a Engineering article available to read on EtoBox.
What is Insights into the Low Overpotential Electroreduction of CO~2~ to CO on a Supported Gold Catalyst in an Alkaline Flow Electrolyzer about?
Cost competitive electroreduction of CO 2 to CO requires electrochemical systems that exhibit partial current density (j CO ) exceeding 150 mA cm -2 at cell overpotentials (|η cell |) less than 1 V. However, achieving such benchmarks remains difficult. Here, we report the electroreduction of CO 2 on a supported gold catalyst in an alkaline flow electrolyzer with performance levels close to the economic viability criteria. Onset of CO production occurred at cell and cathode overpotentials of just -0.25 and -0.02 V, respectively. High j CO (~99, 158 mA cm -2 ) was obtained at low |η cell | (~0.70, 0.94 V) and high CO energetic efficiency (~63.8, 49.4%). The performance was stable for at least 8 h. Additionally, the onset cathode potentials, kinetic isotope effect, and Tafel slopes indicates the low overpotential production of CO in alkaline media to be the result of a pH independent rate determining step (i.e., electron transfer) in contrast to a pH dependent overall process.
Who reads Insights into the Low Overpotential Electroreduction of CO~2~ to CO on a Supported Gold Catalyst in an Alkaline Flow Electrolyzer?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Sumit Verma; Yuki Hamasaki; Chaerin Kim; Wenxin Huang; Shawn Lu; Huei-Ru Molly Jhong; Andrew A. Gewirth; Tsuyohiko Fujigaya; Naotoshi Nakashima; Paul J. A. Kenis
- Publisher
- American Chemical Society (ACS)
- Published
- 2017
- Language
- EN
- Field
- Engineering (Physical Sciences)