International Journal of Hydrogen Energy ( IF 8.1 ) Pub Date : 2023-08-22 , DOI: 10.1016/j.ijhydene.2023.08.077 Binze Zhang , Zhen Zhang , Lijie Zhang , Kaibin Tang , Changrong Xia
Solid oxide electrolysis cells (SOECs) are regarded as a promising technology to realize carbon neutrality since they can electrochemically convert CO2 to CO. This communication reports a feasible structure of a metal-supported solid oxide electrolysis cell (Ms-SOEC) for CO2 electrolysis, where a porous 430 stainless steel substrate is coated with perovskite oxide La0.6Sr0.4Fe0.9Mo0.1O3-δ (LSFM) introduced by the infiltration method. The LSFM catalyst exhibits a uniform distribution and loose accumulation in the porous metal substrate. This Ms-SOEC with a structure of LSFM-430|YSZ|LSCF-SDC shows a current density of 0.90 A cm−2 at 800 °C and 1.5 V with an LSFM loading of 6.0 wt%. Meanwhile, a 10-times thermal cycling operation demonstrates good reliability of the configuration. Overall, the metal-based cathode, where 430 stainless steel acts as the mechanical support and infiltrated LSFM perovskite acts as the electrocatalyst for CO2 electrolysis, could be a viable configuration of Ms-SOECs.
中文翻译:
用于CO2电解的金属支撑固体氧化物电解槽的钙钛矿渗透阴极
固体氧化物电解池(SOEC)被认为是一种有前途的实现碳中和的技术,因为它们可以通过电化学方式将CO 2 转化为CO。该通讯报道了一种用于CO 2的金属支撑固体氧化物电解池(Ms-SOEC)的可行结构电解,其中多孔430不锈钢基底上涂覆有通过渗透法引入的钙钛矿氧化物La 0.6 Sr 0.4 Fe 0.9 Mo 0.1 O 3-δ (LSFM)。LSFM催化剂在多孔金属基底中表现出均匀分布和松散堆积。该结构为LSFM-430|YSZ|LSCF-SDC的Ms-SOEC显示出0.90 A cm -2的电流密度在 800 °C 和 1.5 V 下,LSFM 负载为 6.0 wt%。同时,10次热循环运行表明该配置具有良好的可靠性。总体而言,金属基阴极(其中430不锈钢充当机械支撑件,渗透LSFM钙钛矿充当CO 2电解的电催化剂)可能是Ms-SOEC的可行配置。