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UV-ATR Spectroscopy Study of the Speciation in Aqueous Polysulfide Electrolyte Solutions

机译:含水多硫化物电解质溶液中的uV-ATR光谱研究

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The distribution of species, dissolution of sulfur as polysulfide and oxoanions in aqueous polysulfideelectrolytes at room temperature was investigated. The dissociation of sodium sulfide in water- - produces equal molar concentrations of OH and HS ions. The addition of elemental sulfur produces avariety of speciation in this polysulfide electrolyte. In this study the formation of oxidised sulfur- species by the reaction of elemental sulfur with the large quantity of OH ions present in the Na2Saqueous sulfide solution was investigated. The adopted UV-ATR technique shows a much betterresponse down to the 200nm region. The UV-ATR spectra of pure aqueous solutions of sodiumthiosulfate, sulfate and sulfite were recorded and compared with the spectra of aqueous polysulfideelectrolytes to report the presence of oxoanions.
机译:研究了物种的分布,硫溶解作为聚硫化物和氧化氧化在室温下的聚多硫化物电解质中。水 - 硫化钠在水中的解离,产生等于摩尔浓度的OH和HS离子。添加元素硫的添加在该多硫化物电解质中产生了病人。在该研究中,研究了通过用Na 2水溶液溶液中存在的大量OH离子的元素硫的反应形成氧化硫。采用的UV-ATR技术显示了一个更好的折衷于200nm地区。记录纯硫酸钠和亚硫酸盐水溶液的UV-ATR光谱,并与水性多硫化物电解质的光谱进行比较,以报告氧化氧化的存在。

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