期刊
ELECTROANALYSIS
卷 34, 期 8, 页码 1348-1362出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.202100396
关键词
Cobalt phthalocyanine; electrocatalysis; nitrite; bismuth tungsten oxide; nickel tungsten oxide
资金
- Department of Science and Technology (DST) Innovation and National Research Foundation (NRF), South Africa through DST/NRF South African Research Chairs Initiative for Professor of Medicinal Chemistry and Nanotechnology [62620]
- Rhodes University
This paper explores the synthesis and characterization of an asymmetrical Co phthalocyanine (CoPc), its covalent linking to two tungsten nanoparticles, and their electrocatalytic properties in the detection of nitrite. The conjugates of Bi2WO6 and NiWO4 showed different sensitivities and limits of detection, with Bi2WO6 exhibiting better performance.
This paper explores the synthesis and characterisation of an asymmetrical Co phthalocyanine (CoPc), and its covalent linking to two tungsten nanoparticles: bismuth tungsten oxide (Bi2WO6) and nickel tungsten oxide (NiWO4). The nanoparticles were also mixed with the CoPc. The CoPc, nanoparticles and their respective conjugates were used as electrocatalysts in the electrochemical detection of nitrite. The electrocatalysts studied in this work had sensitivities ranging from 3-133 mu A/mM while the limits of detection (LoDs) ranged between 0.063 mu M and 1.7 mu M. Bi2WO6 and its conjugate exhibited better LoD than corresponding NiWO4 and conjugate.
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