- Title
- Electrochemical Determination of Nitrite Using Catalyst Free Mesoporous Carbon Nanoparticles from Bio Renewable Areca nut Seeds
- Creator
- Yallappa, S.; Shivakumar, M.; Nagashree, K. L.; Dharmaprakash, M. S.; Vinu, Ajayan; Hegde, Gurumurthy
- Relation
- Journal of the Electrochemical Society Vol. 165, Issue 10, p. H614-H619
- Publisher Link
- http://dx.doi.org/10.1149/2.0561810jes
- Publisher
- Electrochemical Society
- Resource Type
- journal article
- Date
- 2018
- Description
- The preparation of advanced nanomaterials with unique functions from the bio-renewable (natural resources) materials is considered as one of the environmentally friendly and cost effective approaches. In this report, we demonstrate on the synthesis of carbon nanospheres with tunable diameters (30–40 nm) and controlled morphology with a pore size ∼2.0 nm from biorenewable carbon rich Areca nut and their applications in the electrochemical sensing of nitrite. The obtained carbon nanospeheres exhibit good linear range (0.2 to 400 μM) for electrocatalytic oxidation of nitrite, are able to detect low levels of nitrite with high sensitivity (28.91 mA/ μM/cm2) and are found to have better sensing capability than other porous carbon based electrocatalysts. This excellent electrocatalytic performance of carbon nanospheres toward oxidation of nitrite may be arising from synergistic effect between its high porosity, surface area and the catalytic effect of the carbon surface due to the presence of surface functional groups. The carbon nanosphere based sensor is also succesfully used for the real time sensing of nitrite from sea and lake water.
- Subject
- carbon nanospheres; electrochemical sensing; nitrite; oxidation; areca nut seeds
- Identifier
- http://hdl.handle.net/1959.13/1452324
- Identifier
- uon:44410
- Identifier
- ISSN:0013-4651
- Language
- eng
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