Fig. 2: Temperature effect on the CE between the SiO2 and aqueous solutions. | Nature Communications

Fig. 2: Temperature effect on the CE between the SiO2 and aqueous solutions.

From: Quantifying electron-transfer in liquid-solid contact electrification and the formation of electric double-layer

Fig. 2

(a) The effects of the NaCl concentration on the CE between the SiO2 and the NaCl solutions. (b) The decay of the CE charge at 433 K which is induced by contacting with the NaCl solutions. (c) The CE charge density on the SiO2 sample surface in the charging (contacting with 0.4 M NaCl solution at room temperature) and heating (513 K for 10 min) cycle tests. (d) The decay of the CE charge at 433 K, which is induced by contacting with the pH 11 HCl solution and the pH 3 NaOH solution. The charging and heating cycle testes when the liquids are (e) the pH 11 NaOH solution and (f) the pH 3 HCl solution. (Error bar are defined as s. d.).

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