Stable single platinum atoms trapped in sub-nanometer cavities in 12CaO·7Al₂O₃ for chemoselective hydrogenation of nitroarenes.

ABSTRACT: Single-atom catalysts (SACs) have attracted significant attention because they exhibit unique catalytic performance due to their ideal structure. However, maintaining atomically dispersed metal under high temperature, while achieving high catalytic activity remains a formidable challenge. In this work, we stabilize single platinum atoms within sub-nanometer surface cavities in well-defined 12CaO·7Al₂O₃ (C12A7) crystals through theoretical prediction and experimental process. This approach utilizes the interaction of isolated metal anions with the positively charged surface cavities of C12A7, which allows for severe reduction conditions up to 600 °C. The resulting catalyst is stable and highly active toward the selective hydrogenation of nitroarenes with a much higher

SUBMITTER: Ye TN 

PROVIDER: S-EPMC7039943 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature