Modified Ni-carbonate interfaces for enhanced CO₂ methanation activity: tuned reaction pathway and reconstructed surface carbonates

• Main Authors: Shen, Xuqiang, Wang, Zizhou, Wang, Qiaojuan, Tumurbaatar, Chantsalmaa, Bold, Tungalagtamir, Liu, Wen, Dai, Yihu, Tang, Yongming, Yang, Yanhui
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Chemical engineering; Heterogeneous Catalysis; Ni Catalyst
• Online Access: https://hdl.handle.net/10356/163924
• Institution: Nanyang Technological University

A Ni/Zr-La2O2CO3 catalyst with interfaces between Ni metal and Zr-modified carbonate support was used for atmospheric CO2 methanation reaction, exhibiting 81% conversion and 99.6% CH4 selectivity at 300 °C. The Zr4+ ions incorporated in La2O2CO3 lattices properly strengthened the Ni-carbonate intera...