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Updated: Jul 26, 2025
Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
Thermally stable proton conductivity from nanodiamond oxide
Lutfia Isna Ardhayanti1,2, Md Saidul Islam1,3, Masahiro Fukuda1
1Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan. hayami@kumamoto-u.ac.jp.
Nanodiamond oxide (NDOx) exhibits superior proton conductivity and thermal stability due to its enhanced hydrophilicity and retained functional groups. This makes NDOx a promising material for applications requiring efficient proton transport and high-temperature performance.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Proton conductivity is crucial for energy applications like fuel cells.
- Developing stable and efficient proton-conducting materials remains a challenge.
- Nanodiamonds offer a unique platform for material functionalization.
Purpose of the Study:
- To synthesize and characterize nanodiamond oxide (NDOx) from nanodiamond (ND).
- To evaluate the proton conductivity and thermal stability of NDOx.
- To understand the relationship between NDOx properties and its structure.
Main Methods:
- Modified Hummers' oxidation of nanodiamond (ND).
- Characterization of nanodiamond oxide (NDOx) properties.
- Assessment of proton conductivity and thermal stability.
Main Results:
- Successfully synthesized NDOx with excellent proton conductivity.
- NDOx demonstrated remarkable thermal stability.
- Hydrophilicity of NDOx contributes to higher water adsorption.
- Functional groups in NDOx are retained at elevated temperatures.
Conclusions:
- NDOx exhibits high proton conductivity and thermal stability.
- The material's hydrophilicity and functional group retention are key to its performance.
- NDOx is a promising candidate for advanced proton-conducting applications.
