Long-term stability for Co-electrolysis of CO2/steam assisted by catalyst-infiltrated solid oxide cells

Hyeon Ye Jeong, Kyung Joong Yoon, Jong Ho Lee, Yong Chae Chung, Jongsup Hong

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study investigated the long-term durability of catalyst(Pd or Fe)-infiltrated solid oxide cells for CO2/steam co-electrolysis. Fuel-electrode supported solid oxide cells with dimensions of 5 × 5 cm2 were fabricated, and palladium or iron was subsequently introduced via wet infiltration (as a form of PdO or FeO solution). The metallic catalysts were employed in the fuel-electrode to promote CO2 reduction via reverse water gas shift reactions. The metal-precursor particles were well-dispersed on the fuel-electrode substrate, which formed a bimetallic alloy with Ni embedded on the substrate during high-temperature reduction processes. These planar cells were tested using a mixture of H2O and CO2 to measure the electrochemical and gas-production stabilities during 350 h of co-electrolysis operations. The results confirmed that compared to the Fe-infiltrated cell, the Pd-infiltrated cell had higher stabilities for both electrochemical reactions and gas-production given its resistance to carbon deposition.

Original languageEnglish
Pages (from-to)50-54
Number of pages5
JournalJournal of the Korean Ceramic Society
Volume55
Issue number1
DOIs
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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