Hydrogen-enriched Rh clusters on layered calcium silicate for high-efficiency hydrogenation of aromatics at room temperature
Year: 2025
Type: article
Abstract: The deep hydrogenation of aromatic rings remains challenging due to their inherent stability and low hydrogen solubility in solvents. Addressing both kinetic limitations and gas-liquid-solid mass transfer resistance under mild conditions requires innovative catalyst design. Herein, we address this hurdle by developing “hydrogen pumping catalysts” featuring ultrafine Rh nanoclusters within CAS-1, a novel potassium calcium silicate material (Ca4K4(H2O)8Si16O38). The outstanding advantage of the RhCAS-1 catalyst lies in its superior hydrogen storage capability, which ensures an uninterrupted hydrogen provision to catalytic active sites. Operating at ambient temperature, RhCAS-1 enables fully saturated hydrogenation of polycyclic aromatic hydrocarbons (e.g., naphthalene, toluene, and anthracene) with high conversion efficiency, while maintaining high catalytic stability over 20 consecutive operational cycles without detectable degradation. These findings establish a multifunctional framework for heterogeneous catalyst design that seamlessly integrates H2 storage and activation, enabling energy-efficient hydrogenation of aromatic compounds.
Source: Nano Research
Authors: Jieting He, Binbin Zhao, Qian He, Yingjie Jia, Lei Liu, Jinxiang Dong
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,290
OpenAlex ID: W7083019935