Synthesis and Electrochemical Characteristics of a Nanocomposite Diamond Electrode
| Autor: | Apparao M. Rao, Richard P. Baldwin, John M. Cowley, Rahul Rao, Shashank Sharma, Mahendra K. Sunkara, J. Gullapalli, Radhika C. Mani |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
Nanocomposite General Chemical Engineering Metallurgy chemistry.chemical_element Diamond Chemical vapor deposition engineering.material Amorphous solid chemistry Chemical engineering Electrode Electrochemistry engineering General Materials Science Graphite Electrical and Electronic Engineering Physical and Theoretical Chemistry Platinum Carbon |
| Zdroj: | Electrochemical and Solid-State Letters. 5:E32 |
| ISSN: | 1099-0062 |
| DOI: | 10.1149/1.1475200 |
| Popis: | A nanocomposite material with novel electrochemical properties was synthesized by immersing a platinum wire into the dense zone of the 1-2% CH 4 /H 2 plasma in a microwave chemical vapor deposition reactor. Raman analysisof the deposit indicated the presence of nanocrystalline diamond, graphite, and amorphous sp 3 carbon. Notably, the characteristic broad shoulder between 1350 and 1550 cm - 1 attributable to amorphous sp 2 carbon was absent. Growth of freestanding submicrometer-thick whiskers containing diamond and graphite nanocomposite was observed. The nanocomposite material, without any prior surface pretreatment, showed high reversibility (ΔE p < 100 mV) for dopamine redox reactions in 0.1 M KCl solution. |
| Databáze: | OpenAIRE |
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