Related Experiment Video
Updated: Sep 20, 2025
10:57
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
18.4K
Cascade Electrocatalytic Conversion of CO2 to C3 Products at Elevated Pressures
Nandalal Girichandran1, Lakshmi Mohan1, Sanne Buisman1
1Process & Energy Department, Faculty of Mechanical Engineering, Delft University of Technology, Leeghwaterstraat 39, 2628 CB, Delft, Netherlands.
Chemsuschem
|May 25, 2025
Summary
Researchers developed an elevated pressure cascade reactor for electrochemical reduction of carbon dioxide (CO2) to C3 products. This novel system significantly enhances C3 oxygenate selectivity, overcoming limitations in CO2 conversion efficiency.
Area of Science:
- Electrochemistry
- Catalysis
- Chemical Engineering
Background:
- Electrochemical reduction of carbon dioxide (CO2RR) shows promise for producing valuable chemicals.
- Current CO2RR methods face challenges in efficiently generating C3 products due to C2-C1 coupling limitations.
Purpose of the Study:
- To present a novel elevated pressure cascade catalytic reactor design for CO2 conversion to C3 products.
- To improve the selectivity and efficiency of C3 oxygenate formation via electrochemical CO2 reduction.
Main Methods:
- A two-step electrochemical process utilizing a cascade catalytic reactor.
- Operation at elevated pressure (25 bar) with controlled potential and electrolyte flow rate.
- Employing a copper electrode upstream of a silver electrode for sequential CO2 reduction.
Main Results:
- Achieved 40% selectivity for 2-propanol on a copper electrode under specific conditions.
- Cascade mode significantly increased the C3:C2 oxygenate ratio to 7, compared to 0.6 in non-cascade mode.
- Demonstrated a notable advancement in CO2 electroreduction to oxygenated C3 products.
Conclusions:
- The elevated pressure cascade electrolysis approach is effective for enhancing C3 product selectivity in CO2RR.
- This method offers a promising pathway to overcome current limitations in producing higher-value C3 chemicals from CO2.
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