Key active component
The polymeric Cr6+ species on this catalyst serve as highly active sites for CO2-assisted oxidative dehydrogenation of ethane, with CO2 also regenerating deactivated Cr3+ back to Cr6+ for improved stability.
Mufan, Niu · Qiyu, Sun · Chongbin, Wei · Fubin, Peng · Xiaohe, Huang · Yang, Han · Ying, Cui · Ren, Shenyong · Xu, Chunming · Shen, Baojian
Journal of Catalysis 2026
Catalytic activity strongly correlates with polymeric Cr6+ content
Electronic interaction promotes formation and stabilization of polymeric Cr6+
CO2 participates in ethane ODH and RWGS, reoxidizing Cr3+ to Cr6+
Pronounced catalyst deactivation limits industrial application