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. 2022 Mar 2;3:100169. doi: 10.1016/j.sintl.2022.100169

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Fig. 7 — Electrochemical sensors: (a)The H₂O₂ reduction mechanism at the Ag modified MWCNT electrode, (b) electrochemical sensor structures with a single working electrode, and (c) electrochemical sensor structures with two working electrodes. Reproduced from ref.118 with the permission from IOP Science.