现代化工

现代化工 ›› 2021, Vol. 41 ›› Issue (6) : 95-100. DOI: 10.16606/j.cnki.issn0253-4320.2021.06.020

科研与开发

碳纸负载Co(OH)₂-Co纳米片的制备及其催化NaBH₄电氧化行为研究

崔灿, 王浩宇, 程宇玲, 刘有智, 焦纬洲, 张栋铭

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Preparation of carbon paper supported cobalt hydroxide-cobalt nanoplates and study on its catalytic behavior for electrooxidation of NaBH₄

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摘要

通过电沉积和化学还原过程在碳纸表面负载Co（OH）₂-Co纳米片，制得氢氧化钴-钴@碳纸电极（Co（OH）₂-Co@CP），并将其用于催化NaBH₄的电氧化反应。利用SEM、TEM、XRD及XPS等物理表征手段对所制备电极的形貌、组成、元素价态等进行了分析，并用CV及CA等电化学方法研究了所制备电极在碱性溶液中对NaBH₄的电氧化催化行为。结果表明，所制备电极对NaBH₄电氧化具有良好的催化活性。

Abstract

Cobalt hydroxide-cobalt@carbon paper (Co(OH)₂-Co@CP) electrode is prepared through the electrodeposition and chemical reduction processes which make Co(OH)₂-Co nanoplates load on the surface of carbon paper.Then the electrode is used to catalyze the electrooxidation of NaBH₄.Physical characterization methods including SEM,TEM,XRD and XPS are used to analyze the morphology,composition and element valence of the as-prepared electrode.Electrooxidation catalytic behavior of the electrode to NaBH₄ in alkaline solution is studied by CV and CA electrochemical methods.The results indicate that the as-prepared electrode has a good catalytic activity in the electrooxidation of NaBH₄.