In Situ Formed Ruthenium(0) Nanoparticles Supported on TiO₂ Catalyzed Hydrogen Generation from Aqueous Ammonia-Borane Solution at Room Temperature Under Air

Abstract

Herein, the authors report that TiO₂ supported ruthenium nanoparticles (Ru(0)/TiO₂) during hydrolysis starting with RuCl₃/TiO₂ precatalyst act as highly active, long-lived, and reusable nanocatalyst in the hydrogen generation from the hydrolysis of ammonia-borane (NH₃BH₃) at room temperature. The resulting Ru(0)/TiO₂ catalyze hydrogen generation from the hydrolysis of ammonia-borane with an initial turnover frequency value of 200 min⁻¹ at 25 ± 0.1°C. More importantly, Ru(0)/TiO₂ are stable enough to be isolated and bottled as solid material, which can be reused as active catalyst under the identical conditions of the first run.

Keywords:

• ruthenium
• nanoparticles
• titanium(IV) oxide
• ammonia-borane
• hydrogen

Funding

The authors thank the Presidency of Scientific Research Projects of University of Yüzüncü Yıl for the financial support.