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Electron penetration triggering interface activity of Pt-graphene for CO oxidation at room temperature by Yong Wang; Pengju Ren; Jingting Hu; Yunchuan Tu; Zhongmiao Gong; Yi Cui; Yanping Zheng; Mingshu Chen; Wujun Zhang; Chao Ma; Liang Yu; Fan Yang; Ye Wang; Xinhe Bao; Dehui Deng is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Electron penetration triggering interface activity of Pt-graphene for CO oxidation at room temperature about?
## Abstract Achieving CO oxidation at room temperature is significant for gas purification but still challenging nowadays. Pt promoted by 3d transition metals (TMs) is a promising candidate for this reaction, but TMs are prone to be deeply oxidized in an oxygen-rich atmosphere, leading to low activity. Herein we report a unique structure design of graphene-isolated Pt from CoNi nanoparticles (PtǀCoNi) for efficiently catalytic CO oxidation in an oxygen-rich atmosphere. CoNi alloy is protected by ultrathin graphene shell from oxidation and therefore modulates the electronic property of Pt-graphene interface via electron penetration effect. This catalyst can achieve near 100% CO conversion at room temperature, while there are limited conversions over Pt/C and Pt/CoNiO~x~ catalysts. Experiments and theoretical calculations indicate that CO will saturate Pt sites, but O~2~ can adsorb at the Pt-graphene interface without competing with CO, which facilitate the O~2~ activation and the subsequent surface reaction. This graphene-isolated system is distinct from the classical metal-metal oxide interface for catalysis, and it provides a new thought for the design of heterogeneous catalysts.
Who reads Electron penetration triggering interface activity of Pt-graphene for CO oxidation at room temperature?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Yong Wang; Pengju Ren; Jingting Hu; Yunchuan Tu; Zhongmiao Gong; Yi Cui; Yanping Zheng; Mingshu Chen; Wujun Zhang; Chao Ma; Liang Yu; Fan Yang; Ye Wang; Xinhe Bao; Dehui Deng
- Publisher
- Springer Science and Business Media LLC
- Published
- 2021
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)