Catalytic enhancement on nanowire-engineered thermally stable oxide-metal inverse catalysts

IF 5.1 2区化学 Q1 CHEMISTRY, APPLIED

Catalysis Today Pub Date : 2026-03-01 Epub Date: 2025-10-20 DOI:10.1016/j.cattod.2025.115612

Gyuho Han , Seongsu Choi , Hee Chan Song , Gyu Rac Lee , Jaebeom Han , Pyeonghwa Lee , Jaeho Kim , Han-Koo Lee , Si Woo Lee , Yeon Sik Jung , Jeong Young Park

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引用次数: 0

Abstract

The interface between metal and oxide plays a critical role in heterogeneous catalysis. In this study, we fabricated model inverse catalysts by transferring oxide nanowire assemblies of Co₃O₄, CeO₂, and TiO₂ onto Pt films to construct structurally well-defined oxide-metal interfaces. The deposited oxide nanowires retained their morphology without noticeable diffusion or sintering during annealing and carbon monoxide oxidation, as confirmed by near-edge X-ray absorption fine structure analysis. The surface electronic structure and morphology of the Pt film also remained largely unchanged, preserving the oxide-metal interfaces, which exhibited significant enhancements in turnover frequencies, depending on the oxide composition. These results highlight the utility of oxide nanowires in constructing thermally stable and composition-tunable oxide-metal interfaces for catalytic systems.

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纳米线工程热稳定氧化物-金属反相催化剂的催化增强

金属与氧化物之间的界面在非均相催化中起着至关重要的作用。在这项研究中，我们通过将Co3O4， CeO2和TiO2的氧化物纳米线组件转移到Pt薄膜上来构建结构明确的氧化物-金属界面来制备模型反催化剂。近边x射线吸收精细结构分析证实，在退火和一氧化碳氧化过程中，沉积的氧化纳米线没有明显的扩散和烧结。Pt薄膜的表面电子结构和形貌也基本保持不变，保留了氧化物-金属界面，根据氧化物成分的不同，其转换频率显著增强。这些结果突出了氧化物纳米线在为催化系统构建热稳定和成分可调的氧化物-金属界面方面的应用。

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来源期刊

Catalysis Today 化学-工程：化工

CiteScore

11.50

自引率

3.80%

发文量

573

审稿时长

2.9 months

期刊介绍： Catalysis Today focuses on the rapid publication of original invited papers devoted to currently important topics in catalysis and related subjects. The journal only publishes special issues (Proposing a Catalysis Today Special Issue), each of which is supervised by Guest Editors who recruit individual papers and oversee the peer review process. Catalysis Today offers researchers in the field of catalysis in-depth overviews of topical issues. Both fundamental and applied aspects of catalysis are covered. Subjects such as catalysis of immobilized organometallic and biocatalytic systems are welcome. Subjects related to catalysis such as experimental techniques, adsorption, process technology, synthesis, in situ characterization, computational, theoretical modeling, imaging and others are included if there is a clear relationship to catalysis.