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Y2O3-engineered metal-support interaction and oxide-support interaction boosted reversed water-gas shift catalysis.

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Title: Y2O3-engineered metal-support interaction and oxide-support interaction boosted reversed water-gas shift catalysis.
Authors: Liu, Hao-Ran1 (AUTHOR), Fu, Xin-Pu1 (AUTHOR) fuxinpu@sdu.edu.cn, Wang, Wei-Wei1 (AUTHOR) wangww@sdu.edu.cn, Jia, Chun-Jiang1 (AUTHOR) jiacj@sdu.edu.cn
Source: Applied Catalysis B: Environment & Energy. Jun2026, Vol. 387, pN.PAG-N.PAG. 1p.
Subjects: Water gas shift reactions, Platinum catalysts, Carbon dioxide reduction, Oxygen vacancy, Catalysts
Abstract: Supported Pt-based catalysts have demonstrated significant potential for various catalytic processes; however, simultaneously achieving high efficiency and thermal stability remains a major challenge in catalyst design, particularly under reducing reaction conditions. Herein, we fabricated 1Pt/10Y-MnO x (Mnδ+, 2 < δ < 3) catalyst, in which Y 2 O 3 -induced dual-functional interactions, comprising metal-support interaction (MSI) and oxide-support interaction (OSI), were regulated to modify the interfacial structures. On one hand, the embedded Pt-Y 2 O 3 MSI improved the catalyst resistance to Pt sintering as well as optimized the sorption behavior via electronic modification; On the other hand, the Y 2 O 3 -MnO x OSI promoted the generation of O v structures by stretching the Mn–O bonds and thereby enhanced the adsorption and activation for O-containing molecules, such as CO 2. Consequently, the 1Pt/10Y-MnO x catalyst exhibited outstanding CO production activity of 482.6 × 10−5 mol·g cat −1·s−1 for the reverse water-gas shift (RWGS) reaction at 600 °C, together with sustained long-term stability over 300 h. This work validates an approach to catalyst interfacial engineering via bifunctional interactions, thereby paving the way for designing highly active and stable Pt-based catalysts. [Display omitted] • The 1Pt/10Y-MnO x RWGS catalyst achieves a remarkable reactivity of 4.83 mmol·g−1·s−1 at 600 °C with an excellent stability over 300 h. • The embedded Pt-Y 2 O 3 interface structure anchors small Pt nanoparticles without sacrificing active site accessibility. • The Y 2 O 3 -MnO x oxide-support interaction promotes oxygen vacancy formation, thereby markedly enhancing CO 2 activation. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:Supported Pt-based catalysts have demonstrated significant potential for various catalytic processes; however, simultaneously achieving high efficiency and thermal stability remains a major challenge in catalyst design, particularly under reducing reaction conditions. Herein, we fabricated 1Pt/10Y-MnO x (Mnδ+, 2 < δ < 3) catalyst, in which Y 2 O 3 -induced dual-functional interactions, comprising metal-support interaction (MSI) and oxide-support interaction (OSI), were regulated to modify the interfacial structures. On one hand, the embedded Pt-Y 2 O 3 MSI improved the catalyst resistance to Pt sintering as well as optimized the sorption behavior via electronic modification; On the other hand, the Y 2 O 3 -MnO x OSI promoted the generation of O v structures by stretching the Mn–O bonds and thereby enhanced the adsorption and activation for O-containing molecules, such as CO 2. Consequently, the 1Pt/10Y-MnO x catalyst exhibited outstanding CO production activity of 482.6 × 10−5 mol·g cat −1·s−1 for the reverse water-gas shift (RWGS) reaction at 600 °C, together with sustained long-term stability over 300 h. This work validates an approach to catalyst interfacial engineering via bifunctional interactions, thereby paving the way for designing highly active and stable Pt-based catalysts. [Display omitted] • The 1Pt/10Y-MnO x RWGS catalyst achieves a remarkable reactivity of 4.83 mmol·g−1·s−1 at 600 °C with an excellent stability over 300 h. • The embedded Pt-Y 2 O 3 interface structure anchors small Pt nanoparticles without sacrificing active site accessibility. • The Y 2 O 3 -MnO x oxide-support interaction promotes oxygen vacancy formation, thereby markedly enhancing CO 2 activation. [ABSTRACT FROM AUTHOR]
ISSN:09263373
DOI:10.1016/j.apcatb.2026.126496