Water Activation Triggered by Cu-Co Double-Atom Catalyst for Silane Oxidation

Area of Science:

• Catalysis
• Materials Science
• Surface Chemistry

Background:

• Water activation is a key challenge in many chemical reactions.
• Developing efficient catalysts is crucial for reducing reaction energy barriers.

Purpose of the Study:

• To introduce a novel copper-cobalt double-atom catalyst (CuCo-DAC) for enhanced water activation.
• To investigate the catalytic performance of CuCo-DAC in silane oxidation.

Main Methods:

• Synthesis of a uniform CuCoN6(OH) double-atom catalyst.
• Evaluation of catalytic activity in silane oxidation reactions.
• Kinetic studies and theoretical calculations to elucidate reaction mechanisms.

Main Results:

• CuCo-DAC demonstrated superior catalytic performance compared to single-atom catalysts (SACs).
• High yields (up to 98%) and selectivity (up to 99%) were achieved for the conversion of functional silanes to silanols.
• Kinetic studies revealed a significantly lower activation energy for CuCo-DAC.

Conclusions:

• CuCo-DAC effectively promotes water activation, which is the rate-determining step in silane oxidation.
• The double-atom structure of CuCo-DAC is key to its enhanced catalytic activity over SACs.