Precisely engineered metal-oxide interfaces in porous single-crystal zirconia monoliths enable enhanced catalytic activity and durability

IF 10.7 Q1 CHEMISTRY, PHYSICAL

Chem Catalysis Pub Date : 2026-03-05 DOI:10.1016/j.checat.2025.101635

Fangyuan Cheng, Suning Zhang, Cong Luo, Lingting Ye, Kui Xie

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Abstract

Zirconia is a typical oxide support due to its exceptional thermal and chemical stability along with beneficial surface alkalinity. As an oxide support, porous single-crystal zirconia monoliths would combine the advantages of activity similar to nanocrystals and stability similar to bulk crystals. In this work, we fabricated a porous single-crystal zirconia monolith and deposited single-crystal Ni_xFe_1-x alloy nanoparticles to form well-defined metal-oxide interfaces for the control of metal-oxide interactions to enhance catalytic performance and durability. As a case study, we showed outstanding performance with conversion efficiencies of CH₄ and CO₂ reaching ∼88.9% and 91.7% for dry reforming of CH₄/CO₂, respectively, without visible performance degradation even during continuous operation for 240 h at a low temperature of ∼650°C. The current work opens a new avenue for developing high-efficiency catalysts for carbon reclamation at low temperatures, and the present techniques can create well-defined active interface structures for catalyst designs.

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在多孔单晶氧化锆单体中精确设计的金属氧化物界面增强了催化活性和耐久性

氧化锆是一种典型的氧化物载体，因为它具有优异的热稳定性和化学稳定性以及有益的表面碱性。作为氧化物载体，多孔单晶氧化锆单体结合了类似纳米晶体的活性和类似块状晶体的稳定性。在这项工作中，我们制备了多孔单晶氧化锆单体，并沉积了单晶NixFe1-x合金纳米颗粒，形成了明确的金属-氧化物界面，用于控制金属-氧化物相互作用，以提高催化性能和耐久性。作为一个案例研究，我们展示了出色的性能，CH4和CO2的转化效率在CH4/CO2的干重整中分别达到了~ 88.9%和91.7%，即使在~ 650℃的低温下连续运行240 h也没有明显的性能下降。目前的工作为开发低温高效碳回收催化剂开辟了一条新途径，现有技术可以为催化剂设计创造明确的活性界面结构。

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来源期刊

Chem Catalysis

CiteScore

10.50

自引率

6.40%

发文量

期刊介绍： Chem Catalysis is a monthly journal that publishes innovative research on fundamental and applied catalysis, providing a platform for researchers across chemistry, chemical engineering, and related fields. It serves as a premier resource for scientists and engineers in academia and industry, covering heterogeneous, homogeneous, and biocatalysis. Emphasizing transformative methods and technologies, the journal aims to advance understanding, introduce novel catalysts, and connect fundamental insights to real-world applications for societal benefit.