Document Type : Research Paper

Authors

• Reza Sacourbaravi
• Zeinab Ansari-Asl
• Mohammad Kooti
• Valiollah Nobakht

Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran

Abstract

The utilization of NH₃BH₃ (ammonium borane) as a H₂ gas storage compound is restricted by its slow rate for H2 evolution. In this study, three Ag@Zn-MOF nanocomposites with different amounts of Ag:Zn-MOF ratio of 0.25:1 (1), 0.5:1 (2), and 1:1 (3) were investigated as catalysts for hydrogen evolution from hydrolysis of NH₃BH₃. Well dispersed encapsulated Ag nanoparticles (30-60 nm) in the matrix of the composites have been prepared in the presence of Zn(II) metal-organic frameworks (Zn-MOFs) in an aqueous solution by using NaBH₄ as a reducing agent at room temperature. These nanocomposites have shown good catalytic activity for the hydrolysis of NH₃BH₃.

Graphical Abstract

Keywords

• Hydrogen generation
• Ammonia borane
• Metal-organic framework
• Nanocatalyst