Journal article

Authors list: Wang, Yu; Paciok, Paul; Pielsticker, Lukas; Spriewald Luciano, Alexander; Glatthaar, Lorena; Xu, Aijie; He, Zimo; Ding, Min; Hetaba, Walid; Gallego, Jaime; Guo, Yanglong; Smarsly, Bernd M.; Over, Herbert

Publication year: 2025

Pages: 7739-7750

Journal: Chemical Science

Volume number: 16

Issue number: 18

ISSN: 2041-6520

eISSN: 2041-6539

Open access status: Gold

DOI Link: https://doi.org/10.1039/d5sc00778j

Publisher: Royal Society of Chemistry

Abstract: 
The exsolution of ruthenium from a 3 at% ruthenium-substituted LaFeO3 (LFR3) perovskite oxide is meticulously designed to produce a high-performance ruthenium-supported catalyst with high atomic efficiency. A high-temperature redox pretreatment at 800 degrees C enriches the Ru concentration in the near-surface region of LFR3, while a subsequent mild reduction step with H2 at 500 degrees C leads to the Ru exsolution from the Ru-enriched near-surface region (LFR3_Redox_500R), resulting in a high density of small particles that are not passivated by LaOx. The performance of this catalyst is evaluated through its application in two prototypical catalytic reactions: the combustion of propane (oxidation reaction) and the reduction of CO2 by hydrogenation (reduction reaction). For both reactions, the activity of the redox-pretreated sample LFR3_Redox_500R exhibits a significant increase compared to the activity of the untreated sample (LFR3_500R). In the catalytic hydrogenation of CO2, the high selectivity profile undergoes a transition from CO for LFR3_500R to methane for LFR3_Redox_500R.

Harvard Citation style: Wang, Y., Paciok, P., Pielsticker, L., Spriewald Luciano, A., Glatthaar, L., Xu, A., et al. (2025) Boosting Ru atomic efficiency of LaFe0.97Ru0.03O3via knowledge-driven synthesis design, Chemical Science, 16(18), pp. 7739-7750. https://doi.org/10.1039/d5sc00778j

APA Citation style: Wang, Y., Paciok, P., Pielsticker, L., Spriewald Luciano, A., Glatthaar, L., Xu, A., He, Z., Ding, M., Hetaba, W., Gallego, J., Guo, Y., Smarsly, B., & Over, H. (2025). Boosting Ru atomic efficiency of LaFe0.97Ru0.03O3via knowledge-driven synthesis design. Chemical Science. 16(18), 7739-7750. https://doi.org/10.1039/d5sc00778j