Feasible strategies to promote the sensing performances of spinel MCo2O4 (M = Ni, Fe, Mn, Cu and Zn) based electrochemical sensors: a review

Autor(es)

Goncalves, Josue M. ^[1] ; Rocha, Diego P. ^[1] ; Silva, Murillo N. T. ^[2] ; Martins, Paulo R. ^[3] ; Nossol, Edson ^[2] ; Angnes, Lucio ^[1] ; Rout, Chandra Sekhar ^[4] ; Munoz, Rodrigo A. A. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Quim, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil

^[2] Univ Fed Uberlandia, Inst Quim, BR-38408100 Uberlandia, MG - Brazil

^[3] Univ Fed Goias, Inst Quim, Av Esperanca S-N, BR-74690900 Goiania, Go - Brazil

^[4] Jain Univ, Ctr Nano & Mat Sci, Jain Global Campus, Bangalore 562112, Karnataka - India

• Tipo de documento: Artigo de Revisão
• Fonte: JOURNAL OF MATERIALS CHEMISTRY C; v. 9, n. 25, p. 7852-7887, JUL 7 2021.
• Citações Web of Science: 3

Resumo

Spinel MCo2O4 (M = Ni, Fe, Mn, Cu and Zn) demonstrates excellent physicochemical properties due to the combined effects of M2+ and Co3+ cations. Their inimitable optical, electronic, and mechanical properties open up windows for a broad range of promising applications. The development of novel spinels has opened virtually infinite possibilities for the development of different sensors. The association of nanomaterials with conventional electrodes or other substrates can produce completely novel and high performance sensors. The knowledge about the nanomaterials allows us to tailor sensors for desired applications. In this regard, the spinel MCo2O4 based materials and their composites offer great promise for the design and development of high-performance electrochemical sensors to detect target species in solution or in gas phase. Aiming to shed light on these important materials, this review presents the role of such cobaltites and their composites towards the development of electrochemical sensors with improved analytical properties for sensing in solution as well as gas phase. A critical comparison of the proposed sensors using these MCo2O4-based materials with other chemically-modified sensors considered the best choices in the literature for some target molecules is presented in order to demonstrate the benefits of such materials. Further, future perspectives and opportunities in these exciting research fields are also commented based on their current progress. (AU)

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