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Nanoporous Metal Papers for Scalable Hierarchical Electrode
Takeshi Fujita1, Yasuhiro Kanoko2, Yoshikazu Ito3
1WPI Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai, Miyagi 980-8577 Japan; PRESTO Japan Science and Technology Agency Saitama 332-0012 Japan.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|December 17, 2016
Summary
Researchers created paper-like nanoporous metals using washi paper templates. This novel method yields hierarchical electrodes with high electrochemical capacitance and rapid oxygen evolution rates.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Hierarchical porous materials offer unique properties for electrochemical applications.
- Developing cost-effective and scalable templating methods is crucial for advanced electrode fabrication.
Purpose of the Study:
- To develop a novel templating method for creating paper-like nanoporous metal electrodes.
- To fabricate and characterize trimodal nanoporous gold and hierarchical nickel-manganese electrodes.
Main Methods:
- Utilizing Japanese washi paper as a sacrificial template for nanoporous metal synthesis.
- Employing electrochemical deposition and characterization techniques.
Main Results:
- Successfully fabricated trimodal nanoporous gold electrodes with a paper-like structure.
- Developed hierarchical nickel-manganese electrodes exhibiting high electrochemical capacitance.
- Demonstrated a rapid rate of oxygen evolution in the fabricated electrodes.
Conclusions:
- Washi paper serves as an effective template for creating hierarchical nanoporous metal electrodes.
- The developed electrodes show significant potential for applications requiring high surface area and efficient electrochemical reactions.
