科研之友
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摘要
An electrochemical investigation of As(III) in hydrochloric acid solution was carried out using cyclic voltammetry (CV) and potentiostatic methods. The generation of arsine is closely related to the reduction of H+ and the preformed elementary As. The cathodic peak corresponding to the evolution of arsine was remarkably decreased by the addition of ammonium citrate. Potentiostatic experiments showed that the ammonium citrate had a strong inhibition on the evolution of arsine and could benefit the deposition of elementary As. A low-activity As layer with larger grains was formed in the presence of ammonia citrate, accounting for the inhibitory effect on arsine evolution.
- 出版日期2012-9
- 单位浙江工业大学
