The nanoarchitectonics design is very important for tuning the catalytic performance of the Pt-based catalysts. Herein, mesoporous Pt cage-bell nanostructures (Pt@mPt CBNs) are newly designed by a facile synthetic approach. The unique Pt@mPt CBNs are assembled by a mesoporous Pt nanocage with a Pt nanoparticle inside. Benefiting from its mesoporous cage-bell nanoarchitectonics, the Pt@mPt CBNs exhibit superior catalytic activity and durability for the oxygen reduction reaction. The present Pt nanoarchitectonics rationally integrates the structural advantages of mesoporous nanocages and nanoparticles, which is highly valuable for the design of Pt-based catalysts with desired performance.
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Wang et al. (2018) studied this question.
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