A Fluidised Cathode Process for the Electrochemical Reduction of Tungsten Oxide in A Molten LiCl-KCl Eutectic
A Fluidised Cathode Process for the Electrochemical Reduction of Tungsten Oxide in A Molten LiCl-KCl Eutectic
复制标题
熔融 LiCl-KCl 共晶中氧化钨电化学还原的流化阴极工艺
DOI：
10.1149/05819.0065ecst
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Abdulaziz R
中科院分区：
文献类型：
--
作者：
Abdulaziz R
金属氧化物的电化学还原在难熔金属的生产中非常重要。传统的电还原路线效率低，并且存在与固体前驱体表面上的氧化物结垢相关的限制，以及与有效电解质进入相关的问题。 “流化阴极”工艺为直接电化学还原提供了一种有前景的替代途径。该过程在钨和 LiCl-KCl 模型系统上进行了演示。循环伏安法用于表征还原电化学，计时电流法显示电沉积过程随时间的演变。使用 SEM 和 EDS 分析产品样品。还进行了初步的颗粒库仑测量。
The electrochemical reduction of metal oxides is important in the production of refractory metals. The conventional electroreduction routes have low efficiencies and limitations associated with oxide scaling on the surfaces of solid precursors, as well as issues related to effective electrolyte access. The ‘fluidised cathode’process offers a promising substitute route to the direct electrochemical reduction. The process is demonstrated on a tungsten and LiCl-KCl model system. Cyclicvoltammetry was used to characterise the reduction electrochemistry and chronoamperometry showed the evolution of the electrodeposition process with time. The product samples were analysed using SEM and EDS. Preliminary particle coulometry measurements were also performed.