Related Experiment Video
Updated: Oct 5, 2025
08:13
Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
12.0K
Nickel chalcogenides as selective ethanol oxidation electro-catalysts and their structure-performance relationships
Yufeng Zhang1, Lipeng Zhang1, Chun Song1
1State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China. zhuwei@mail.buct.edu.cn.
Chemical Communications (Cambridge, England)
|January 27, 2022
Summary
Five nickel chalcogenides demonstrate high selectivity for ethanol electro-oxidation into acetic acid. Catalyst activity correlates with nickel-nickel projected distances, offering insights into catalyst design.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Nickel chalcogenides are promising electrocatalysts.
- Selective ethanol electro-oxidation is crucial for chemical synthesis and energy storage.
- Understanding structure-activity relationships is key to catalyst development.
Purpose of the Study:
- To investigate the electro-oxidation of ethanol using five different nickel chalcogenides.
- To determine the selectivity of these catalysts towards acetic acid production.
- To correlate catalyst activity with their structural properties, specifically Ni-Ni projected distances.
Main Methods:
- Electrochemical studies were performed on five nickel chalcogenide materials.
- Product analysis was conducted to determine selectivity towards acetic acid.
- Structural characterization focused on measuring Ni-Ni projected distances.
Main Results:
- All five studied nickel chalcogenides exhibited high selectivity for ethanol electro-oxidation to acetic acid.
- A clear correlation was observed between the catalytic activity and the Ni-Ni projected distances of the nickel chalcogenides.
- Specific Ni-Ni distances were found to be optimal for high activity and selectivity.
Conclusions:
- Nickel chalcogenides are highly selective catalysts for the electro-oxidation of ethanol to acetic acid.
- The Ni-Ni projected distance is a critical structural parameter influencing the activity of nickel chalcogenide catalysts.
- These findings provide a basis for designing improved nickel-based electrocatalysts for selective ethanol oxidation.
