High-loading pt single-atom nanoszyme, preparation method and application thereof

Abstract

This invention belongs to the field of single-atom nanozyme material preparation technology, specifically relating to a high-loaded Pt single-atom nanozyme, its preparation method, and its application. (S.1) FeCl3·6H2O, H2PtCl4·6H2O, and PPh3 are dissolved in DMF and stirred to obtain solution 1; BDC is dissolved in DMF to obtain solution 2; solution 2 is quickly added to solution 1, and the resulting mixture is transferred to a stainless steel high-pressure reactor for hydrothermal reaction. After the reaction, the obtained product is washed with ethanol and dried to obtain a pyrolysis precursor; (S.2) The precursor is placed in the groove of a graphite sample stage of a Joule heating device for Joule heat shock treatment and cooled to room temperature to obtain a high-loaded Pt single-atom nanozyme. This invention inhibits the migration and aggregation of Pt atoms at high temperatures, avoids long-term sintering of the support framework, and retains the high specific surface area and porous structure of the material.

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