Exploring catalytic solid/liquid interfaces by in situ attenuated total reflection infrared spectroscopy.

Area of Science:

• Surface Science
• Spectroscopy
• Catalysis

Background:

• In situ attenuated total reflection Fourier transform infrared (ATR-FT-IR) spectroscopy is crucial for understanding molecular interactions at solid/liquid interfaces.
• This technique is vital for heterogeneous catalysis and electrochemistry, enabling rational catalyst design.
• Infrared spectroscopy provides detailed information on molecular structure and environment.

Purpose of the Study:

• To provide a tutorial review on the key aspects of applying in situ ATR-FT-IR spectroscopy to solid/liquid catalytic interfaces.
• To elucidate the potential and limitations of ATR-FT-IR for examining interfacial processes.
• To guide researchers in the successful application of this advanced spectroscopic technique.

Main Methods:

• Discussion of experimental considerations for internal reflection elements.
• Methods for catalyst deposition and cell design.
• Overview of advanced experimental methods and spectrum analysis techniques.

Main Results:

• In situ ATR-FT-IR has been rapidly developed and successfully applied to unravel solid/liquid interfacial processes.
• The technique allows for non-destructive, simultaneous quantification of reactants and products to follow reaction kinetics.
• Illustrative examples from recent research are used to demonstrate key aspects.

Conclusions:

• Successful application of in situ ATR-FT-IR requires careful consideration of experimental parameters.
• The technique offers significant advantages for studying interfacial phenomena in catalysis and electrochemistry.
• Understanding limitations is crucial for effective utilization of ATR-FT-IR.