Excellent Catalytic Performance of ISOBAM Stabilized Co/Fe Colloidal Catalysts toward KBH₄ Hydrolysis.

Area of Science:

• Materials Science
• Catalysis
• Renewable Energy

Background:

• Developing efficient hydrogen generation catalysts is crucial for clean energy technologies.
• Cost-effective and high-performance catalysts are urgently needed for hydrogen production.

Purpose of the Study:

• To synthesize and evaluate ISOBAM-104 stabilized Co/Fe colloidal catalysts for hydrogen generation from KBH4 hydrolysis.
• To investigate the catalytic activity and mechanism of the novel catalyst.

Main Methods:

• Co/Fe colloidal catalysts were prepared using a co-reduction method.
• Catalytic activity was measured for hydrogen generation from KBH4 hydrolysis.
• X-ray photoelectron spectroscopy and density functional theory calculations were employed.

Main Results:

• ISOBAM-104 stabilized Co10Fe90 colloidal catalysts showed exceptional activity (37,900 mL-H2 min-1 g-Co-1).
• The catalyst exhibited a low apparent activation energy (14.6 ± 0.7 kJ mol-1).
• Electron transfer between Fe and Co atoms was identified as key to catalytic performance.

Conclusions:

• ISOBAM-104 stabilized Co/Fe catalysts are highly effective for hydrogen generation from KBH4.
• The catalyst's performance surpasses that of monometallic nanoparticles and noble metal catalysts.
• This work presents a promising pathway for cost-effective hydrogen production.