The reaction mechanism of the nanoreactor (IMAGE) Science China Press Caption The picture shows mechanism of nanoreactor. The hollow structure of the Pt NPs@MnOx nanoreactor affords a confined space in which reactants enter via directional diffusion driven by the concentration gradient. Then, selective adsorption reduces the internal reactant concentrations, which would promote the in-diffusion of reactants consistently. After the reaction with abundant hydrogen atoms, the weak adsorption of products forces them to leave the nanoreactor in time. Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.