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ROSLI, N. ROHAIZAD, N. ŠTURALA, J. FISHER, A. WEBSTER, R. PUMERA, M.
Original Title
Siloxene, Germanane, and Methylgermanane: Functionalized 2D Materials of Group 14 for Electrochemical Applications
Type
journal article in Web of Science
Language
English
Original Abstract
2D monoelemental group 14 materials beyond graphene, such as silicene and germanene, have recently gained a lot of attention. Covalent functionalization of group 14 layered materials can lead to significant tuning of their properties. While optical and electronic properties of germanene, silicene, and their derivatives have been studied in detail previously, there is no information on their electrochemistry and toxicity. Herein, electrochemical applications of 2D siloxene, germanane, and methylgermanane, specifically for detection of an important biomarker, dopamine, as well as catalyzation of oxygen reduction and hydrogen evolution reactions, which are important in energy applications, are explored. Among the three materials, germanane portrays most superior properties for the electrochemical applications mentioned. All three materials possess fast heterogeneous electron transfer rates, relative to bare glassy carbon electrodes. In addition, toxicity studies of these materials are conducted to gain insights on their possible harmful effects toward human health. The results of this study show siloxene nontoxic while germanane and methylgermanane impose dose-dependent toxicity. Interestingly, methylation successfully reduce the toxicity of methylgermanane at lower concentrations. These studies provide fundamental insights into electrochemical and toxic properties of functionalized group 14 layered materials for future electrochemical applications.
Keywords
energy; layered materials; nanomaterials; sensing; toxicity
Authors
ROSLI, N.; ROHAIZAD, N.; ŠTURALA, J.; FISHER, A.; WEBSTER, R.; PUMERA, M.
Released
1. 5. 2020
Publisher
WILEY-V C H VERLAG GMBH
Location
WEINHEIM
ISBN
1616-301X
Periodical
ADVANCED FUNCTIONAL MATERIALS
Year of study
30
Number
21
State
Federal Republic of Germany
Pages from
1910186-1
Pages to
1910186-11
Pages count
11
URL
https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201910186