14100-65-3Relevant articles and documents
PVP-stabilized Ru-Rh nanoparticles as highly efficient catalysts for hydrogen generation from hydrolysis of ammonia borane
Rakap, Murat
, p. 1025 - 1030 (2015)
Abstract Herein, the utilization of poly(N-vinyl-2-pyrrolidone)-protected ruthenium-rhodium nanoparticles (3.4 ± 1.4 nm) as highly efficient catalysts in the hydrolysis of ammonia borane for hydrogen generation is reported. They are prepared by co-reduction of ruthenium and rhodium metal ions in ethanol/water mixture by an alcohol reduction method and characterized by transmission electron microscopy-energy dispersive X-ray spectroscopy, ultraviolet-visible spectroscopy, and X-ray photoelectron spectroscopy. They are durable and highly efficient catalysts for hydrogen generation from the hydrolysis of ammonia borane even at very low concentrations and temperature, providing average turnover frequency of 386 mol H2 (mol cat)-1 min-1 and maximum hydrogen generation rate of 10,680 L H2 min-1 (mol cat)-1. Poly(N-vinyl-2-pyrrolidone)-protected ruthenium-rhodium nanoparticles also provide activation energy of 47.4 ± 2.1 kJ/mol for the hydrolysis of ammonia borane.
Hydrogen generation from hydrolysis of ammonia borane in the presence of highly efficient poly(N-vinyl-2-pyrrolidone)-protected platinum-ruthenium nanoparticles
Rakap, Murat
, p. 15 - 20 (2014/05/06)
Herein, the employment of PVP-protected Pt-Ru bimetallic nanoparticles (3.2 ± 1.4 nm) as highly efficient catalysts in the hydrolysis of ammonia borane for hydrogen generation is reported. They were prepared by co-reduction of two metal ions in ethanol/water mixture by an alcohol reduction method and characterized by TEM-EDX analysis, UV-vis spectroscopy, and X-ray photoelectron spectroscopy. They are recyclable and highly active for hydrogen generation from the hydrolysis of ammonia borane even at very low concentrations and temperature, providing a record numbers of average TOF value (308 mol H 2 molcat-1 min-1) and maximum hydrogen generation rate (9884 L H2 min-1 (mol cat)-1) for ammonia borane. PVP-protected Pt-Ru bimetallic nanoparticles provide activation energy of 56.3 ± 2 kJ mol-1 for the hydrolysis of ammonia borane.
