Communication - The reduction of selenate mediated by underpotential deposited copper on gold electrodes in acidic solutions: Analytical applications

Jonathan R. Strobl, Daniel Alberto Scherson

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Voltammetric techniques have been employed to show that underpotential deposited Cu on polycrystalline Au electrodes in aqueous 0.1 M HClO4 catalyzes the reduction of purified selenate, SeO4 2-, to yield a layer of adsorbed copper selenide, CuxSe. Subsequent oxidation of this layer led to the loss of Cu, leaving behind adsorbed, elemental Se, which could be oxidized to selenite, SeO3 2-, at higher potentials. Application of this method made it possible to detect SeO4 2- down to nM levels. Voltammetric features observed on Au(poly) in Cu2+-free 0.1 M HClO4 containing SeO4 2- reported earlier in the literature could be attributed to the reduction of SeO3 2- impurities present in the commercial chemical.

本文言語English
ページ(範囲)H1066-H1068
ジャーナルJournal of the Electrochemical Society
163
13
DOI
出版ステータスPublished - 2016 1月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 凝縮系物理学
  • 表面、皮膜および薄膜
  • 材料化学
  • 電気化学

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