- Title
- Electrocatalytic activity of bimetallic Au–Pd nanoparticles in the presence of cobalt tetraaminophthalocyanine
- Creator
- Maringa, Audacity
- Creator
- Mashazi, Philani N
- Creator
- Nyokong, Tebello
- Type
- Article
- Identifier
- vital:7245
- Identifier
- http://hdl.handle.net/10962/d1020250
- Description
- Au and Pd nanoparticles were individually or together electrodeposited on top of polymerized cobalt tetraaminophthalocyanine (poly-CoTAPc). When Pd and Au nanoparticles are co-deposited together, the electrode is denoted as Au–Pd (co-deposited)/poly-CoTAPc-GCE. X-ray photoelectron spectroscopy (XPS) was used to show the successful deposition of AuNPs, PdNPs and Au–Pd (co-deposited). The scanning electrochemical microscopy showed that Au–Pd (co-deposited)/poly-CoTAPc-GCE (with current range of 9.5–13.5 μA) was more conducting than Au–Pd (co-deposited)-GCE (with current range of 8–12 μA). Electrochemical impedance spectroscopy (EIS) showed that there was less resistance to charge transfer for Au–Pd (co-deposited)/poly-CoTAPc-GCE compared to the rest of the electrodes. Au–Pd (co-deposited)/poly-CoTAPc-GCE showed the best activity for the electrooxidation of hydrazine in terms of limit of detection (0.5 μM), hence shows promise as an electrocatalyst for electrooxidation of hydrazine.
- Description
- Original publication is available at http://dx.doi.org/10.1016/j.jcis.2014.10.056
- Format
- 11 p.
- Format
- Publisher
- Elsevier
- Language
- English
- Relation
- Maringa, A., Mashazi, P. & Nyokong, T. 2015. Electrocatalytic activity of bimetallic Au–Pd nanoparticles in the presence of cobalt tetraaminophthalocyanine. Journal of Colloid and Interface Science, 440:151–161. Available: http://dx.doi.org/10.1016/j.jcis.2014.10.056.
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Mashazi, Philani N (Associate Prof)
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry