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From biological enzyme to single atomic Fe-N-C electrocatalyst for efficient oxygen reduction
Wen-Jie Jiang1, Wei-Li Hu, Qing-Hua Zhang
1CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. hujs@iccas.ac.cn.
Chemical Communications (Cambridge, England)
|December 23, 2017
Summary
Researchers developed an efficient electrocatalyst using animal blood, a biowaste, for the oxygen reduction reaction. This novel catalyst features single atomic iron-nitrogen-carbon active sites, inspired by biological metabolic processes.
Area of Science:
- Biotechnology
- Materials Science
- Electrochemistry
Background:
- Biological systems utilize metabolic processes for efficient energy conversion.
- Animal blood contains enzymes with molecular Fe-N centers, offering potential catalytic properties.
- Developing efficient electrocatalysts for oxygen reduction reaction is crucial for energy technologies.
Purpose of the Study:
- To explore animal blood as a biowaste resource for creating advanced electrocatalysts.
- To synthesize and characterize an electrocatalyst with single atomic Fe-N-C active sites.
- To evaluate the electrocatalyst's performance in the oxygen reduction reaction.
Main Methods:
- Biowaste valorization of animal blood.
- Synthesis of single atomic Fe-N-C electrocatalysts.
- Electrochemical characterization using techniques like cyclic voltammetry and rotating disk electrode.
Main Results:
- Successful production of an efficient electrocatalyst from animal blood.
- Demonstration of single atomic Fe-N-C active sites within the catalyst structure.
- High catalytic activity for the oxygen reduction reaction was observed.
Conclusions:
- Animal blood can be effectively utilized as a biowaste precursor for high-performance electrocatalysts.
- The developed Fe-N-C electrocatalyst shows significant promise for oxygen reduction reactions.
- This approach offers a sustainable pathway for catalyst development inspired by biological systems.
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