Related Experiment Video
Updated: May 30, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Boosting Surface Coverage of CO Intermediates through Multimetallic Interface Interactions for Efficient CO2
Ann Mariella Babu1, Mansi Gandhi1, Khairunnisa Amreen2
1CHRIST University, Bangalore, Karnataka 560029, India.
Developing selective pathways for carbon dioxide electroreduction (CO2ER) is crucial. A novel Ag and Zn codoped-SrTiO3 composite electrode efficiently converts CO2 to multicarbon products like acetone with 97% Faradaic efficiency.
Area of Science:
- Electrochemistry
- Materials Science
- Catalysis
Background:
- The electroreduction of carbon dioxide (CO2ER) faces challenges in achieving selective product formation.
- Designing multimetallic nanocomposites can optimize CO coverage for tunable product selectivity.
Purpose of the Study:
- To develop a novel electrocatalyst for selective CO2 electroreduction to multicarbon products.
- To investigate the potential-dependent selectivity of the developed catalyst.
Main Methods:
- Synthesis of Ag and Zn codoped-SrTiO3 (ZAST) composite immobilized on carbon black (CB)-modified GCE (ZAST@CB/GCE).
- Electrochemical conversion of CO2 in a CO2-saturated 0.5 M KHCO3 aqueous electrolyte.
- Product analysis using NMR spectroscopy to determine selectivity.
Main Results:
- The ZAST@CB/GCE electrode demonstrated potential-dependent selectivity for CO2ER.
- Increased applied potential favored the formation of liquid products (acetone, alcohols) over hydrogen evolution reaction (HER).
- A total Faradaic efficiency of 97% for liquid products was achieved at -0.6 V vs. RHE.
Conclusions:
- The developed ZAST@CB/GCE composite is a highly selective electrocatalyst for CO2 to multicarbon product conversion.
- This work presents a significant advancement in acetone production via CO2 valorization.
- The findings highlight the potential of tailored nanocomposites for efficient CO2 electroreduction technologies.
More Related Videos
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
09:20A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction
Published on: January 26, 2016
Related Concept Videos
Interfacial Electrochemical Methods: Overview
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...