论文标题
开发低流量蒸气相电化学反应器，没有天主电解液依赖于二氧化碳电解至高价值碳产物
Development of a low flow vapor phase electrochemical reactor without catholyte reliance for CO2 electrolysis to high value carbon products
论文作者
论文摘要
提出了一种连续的CO2蒸汽喂养的电化学细胞原型，该原型的运行最多为72小时，该原型具有高法拉达效率的CO2R。细胞设计促进了通过构型的流动，利用气体扩散电极（GDE）和膜电极结构（MEA），而无需天主教徒。我们通过将各种CO2R催化剂和膜掺入细胞中，研究了稳定的性能和设计适应性，从而研究了既定的实验条件下的寿命性能和选择性。使用AG箔和PPO阴离子膜，该设计的平均电流密度为-30mA/cm2，而在12小时持续时间内获得的CO的平均电流密度为fe〜80％。使用基于Cu的催化剂，Fe 〜40％的乙烯选择性。细胞的独特几何形状和柔韧性提供了一种自适应和动态的GDE电化学细胞框架，从而简化了针对GDE电极上新型电催化剂的未来研究，以及用于增强（照片）电化学二氧化碳减少的MEA/GDE组件。
A continuous CO2 vapor-fed electrochemical cell prototype that performs CO2R with high faradaic efficiency for desired carbon products for up to 72 hours of operation is presented. The cell design facilitates a flow through configuration, capitalizing on gas diffusion electrode (GDE) and membrane electrode architecture (MEA) without requiring a catholyte. We demonstrate stable performance and design adaptability by incorporating various CO2R catalysts and membranes into the cell, investigating lifetime performance and selectivity under established experimental conditions. With an Ag foil and PPO anion exchange membrane, the design achieves an average current density of -30mA/cm2 and FE ~80% for CO obtained over a 12-hour duration. With a Cu-based catalyst, FE ~40% selectivity for ethylene was achieved. The unique geometry and flexibility of the cell provides an adaptive and dynamic GDE electrochemical cell framework, easing future research for novel electro-catalysts on GDE electrodes and MEA/GDE assemblies for enhanced (photo)electrochemical carbon dioxide reduction.
