Non defect-stabilized thermally stable single-atom catalyst

• DOI: 10.1038/s41467-018-08136-3
• Publication Date: 2019-01-10T10:45:25Z
• Authors: Rui Lang; Wei Xi; Jin-Cheng Liu; Yi-Tao Cui; Tianbo Li; Adam Fraser Lee; Fang Chen; Yang Chen; Lei Li; Lin Li; Jian Lin; Shu Miao; Xiaoyan Liu; Ai-Qin Wang; Xiaodong Wang; Jun Luo; Botao Qiao; Jun Li; Tao Zhang
• Keywords: Multidisciplinary Sciences; Science & Technology; LOW-TEMPERATURE; Science; Q; Science & Technology - Other Topics; Analytical chemistry; 01 natural sciences; SUPPORTED SINGLE; Article; 0104 chemical sciences

Surface-supported isolated atoms in single-atom catalysts (SACs) are usually stabilized by diverse defects. The fabrication of high-metal-loading and thermally stable SACs remains a formidable challenge due to the difficulty creating high densities underpinning Here we report that Pt can be through strong covalent metal-support interaction (CMSI) is not associated with support defects, yielding high-loading SAC trapping either already deposited or PtO2 units vaporized from nanoparticles during high-temperature calcination. Experimental computational modeling studies reveal iron oxide reducibility crucial anchor atoms. resulting concentrations single enable specific activities far exceeding those conventional nanoparticle catalysts. This non defect-stabilization strategy extended non-reducible supports simply doping oxide, thus paving new way for constructing industrially important catalytic reactions.