Gold Decorated Hydroxyapatite–CeO 2  Enabled Surface Frustrated Lewis Pairs for CO Oxidation | Zendy

Guo Jiuli | Zendy; Song Rui | Zendy; Li Zehao | Zendy; Pan Donghui | Zendy; Xie Haijiao | Zendy; Ba Yantao | Zendy; Xie Ming | Zendy; Fan Shijiao | Zendy; Yang Xuedong | Zendy; Zhang Haibo | Zendy; Yu Huanhuan | Zendy; Zhang Shoumin | Zendy; Du Jimin | Zendy; He Le | Zendy; Wang Lu | Zendy

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Gold Decorated Hydroxyapatite–CeO 2 Enabled Surface Frustrated Lewis Pairs for CO Oxidation

Author(s) -

Guo Jiuli,

Song Rui,

Li Zehao,

Pan Donghui,

Xie Haijiao,

Ba Yantao,

Xie Ming,

Fan Shijiao,

Yang Xuedong,

Zhang Haibo,

Yu Huanhuan,

Zhang Shoumin,

Du Jimin,

He Le,

Wang Lu

Publication year - 2022

Publication title -

advanced energy and sustainability research

Language(s) - English

Resource type - Journals

ISSN - 2699-9412

DOI - 10.1002/aesr.202200106

Subject(s) - lewis acids and bases , carbon monoxide , chemistry , frustrated lewis pair , molecule , diffuse reflectance infrared fourier transform , photochemistry , infrared spectroscopy , oxygen , electron paramagnetic resonance , catalysis , inorganic chemistry , photocatalysis , organic chemistry , nuclear magnetic resonance , physics

The activation of molecular oxygen (O 2 ) holds the fundamental step for reaction mechanism of carbon monoxide oxidation. Surface frustrated Lewis pairs (SFLPs) with sterically hindered Lewis acid–base pairs are proven to activate small molecules, such as hydrogen. However, the activation of molecular O 2 on SFLPs remains unexplored. Herein, the construction of SFLPs in Au decorated hydroxyapatite (HAP)–CeO 2 heterojunction is reported. The coordinately unsaturated Lewis acidic Ce 3+ and the Lewis basic OH − group in HAP enable the activation of O 2 molecules toO 2 −–Ce 3+ species for carbon monoxide (CO) oxidation. The active site is identified based on the comprehensive in situ electron paramagnetic resonance, in situ diffuse reflectance infrared Fourier transform spectroscopy, X‐Ray absorption spectroscopy, and theoretical simulation. The results provide a new strategy to construct SFLPs sites for O 2 molecule activation and the subsequent CO oxidation.

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