阳极氧化
电解质
纳米结构
化学工程
锌
化学
扫描电子显微镜
氧化物
电极
水溶液
纳米技术
无机化学
材料科学
有机化学
复合材料
铝
物理化学
工程类
作者
Patricia Batista-Grau,R.M. Fernández‐Domene,Rita Sánchez-Tovar,J. García‐Antón
标识
DOI:10.1016/j.jelechem.2020.114933
摘要
Zinc oxide nanostructured electrodes were successfully synthesized by a simple method of anodization in different aqueous bicarbonate electrolytes. The influence of the anodization electrolyte composition (by adding ethanol or glycerol) on the morphology and the photoelectrocatalytic properties of the zinc oxide electrodes was studied, as well as the combined effect of anodizing under controlled hydrodynamic conditions. Field Emission Scanning Electron Microscope (FE-SEM) images of the ZnO electrodes showed that the addition of ethanol or glycerol to the anodization electrolyte resulted in changes in size and morphology of the nanostructures. Thus, ZnO nanowires, nanotubes, nanosponge and nanospheres were obtained. Additionally, multi-factor analysis of the variance (ANOVA) revealed that photocurrent density response during water splitting test experimented significant variations depending on the anodization electrolyte composition. In particular, the best photoelectrochemical performance was achieved for the ZnO nanostructures anodized in low amounts of ethanol or glycerol.
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