Solar-assisted production of hydrogen and chlorine from hydrochloric acid using hexachloroiridate (III) and (IV)
Solar-assisted production of hydrogen and chlorine from hydrochloric acid using hexachloroiridate (III) and (IV)
复制标题
使用六氯铱酸盐 (III) 和 (IV) 在太阳能辅助下从盐酸生产氢气和氯气
DOI：
10.1016/0360-3199(93)90149-5
复制
发表时间：
1993
影响因子：
7.2
通讯作者：
R. Hanrahan
中科院分区：
文献类型：
--
作者：
A. Gupta;Robin Z. Parker;R. Hanrahan
从 HCl 溶液生产 H2 和 Cl2 对于商业 H2 生产、公用事业负载均衡和太阳能存储非常重要。为此目的，研究了含有 IrCl63 -/IrCl62 - 的 6M HCl 溶液电解产生 H2 和光解产生 Cl2 的情况。使用 1 m2 太阳能聚光器，进行 IrCl62 - 的光解，形成 IrCl63 - 并将含水 Cl- 离子转化为气态 Cl2。利用 425 nm 处的光吸收确定光解作用下 IrCl62 被破坏的量；通过化学计量推断形成Cl 2 的相应产率。溶液的电解在恒定电流密度下进行。电解过程中，H3O+ 在阴极被还原形成 H2，而光解过程中形成的 IrCl63 - 在阳极被氧化回 IrCl62 -。铱络合物存在下的电解在比 HCl 溶液本身电解更低的电压下进行。 H2 的形成是根据法拉第定律以及与电解下形成的 IrCl62 量的化学计量关系推断的，再次通过 425 nm 处的光吸收进行测量。总体而言，HCl/IrCl63 - 水溶液在电解过程中形成IrCl62 - 加H2，而HCl/IrCl62 - 水溶液在光解过程中形成IrCl63 - 加Cl2。
The production of H2and Cl2from HCl solution is important in relation to commercial H2production, utility load leveling and solar energy storage. The production of H2from electrolysis and Cl2from photolysis of a 6M HCl solution containing IrCl63 −/IrCl62 −was investigated for this purpose. Using a 1 m2solar concentrator, the photolysis of IrCl62 −was carried out, forming IrCl63 −and converting aqueous Cl−ions to gaseous Cl2. The amount of IrCl62 −destroyed under photolysis was established using light absorption at 425 nm; corresponding yields for formation of Cl2were inferred by stoichiometry. Electrolysis of the solution was carried out at a constant current density. During electrolysis the H3O+is reduced at the cathode to form H2, while IrCl63 −formed during photolysis is oxidized back to IrCl62 −at the anode. Electrolysis in the presence of the iridium complex proceeds at a lower voltage than the electrolysis of HCl solution itself. Formation of H2was inferred from Faraday's laws, as well as from a stoichiometric relationship with the amount of IrCl62 −formed under electrolysis, which was again measured by light absorption at 425 nm. Overall, aqueous HCl/IrCl63 −solutions form IrCl62 −plus H2during electrolysis, whereas aqueous HCl/IrCl62 −solutions form IrCl63 −plus Cl2during photolysis.