Adaptive Catalytic Systems for Chemical Energy Conversion

Area of Science:

• Catalysis
• Sustainable Chemistry
• Chemical Engineering

Background:

• Growing importance of green hydrogen and renewable carbon feedstocks for sustainable chemical value chains.
• Challenges in catalyst performance due to fluctuations in non-fossil energy and raw material supply.
• Need for catalysts that can adapt to dynamic conditions rather than being task-specific.

Purpose of the Study:

• To define and propose a framework for 'adaptive catalysis'.
• To introduce the R³ rule (reversibility, rapidity, and robustness) as a measure of catalyst adaptivity.
• To highlight the potential of adaptive catalysis for chemical energy conversion.

Main Methods:

• Conceptual framework development for adaptive catalysis.
• Definition of three key properties: reversibility, rapidity, and robustness (R³ rule).
• Review of promising design strategies and examples illustrating the R³ rule.

Main Results:

• Establishment of the R³ rule as a scientific concept for adaptive catalysis.
• Demonstration of how adaptive catalysts can address feedstock variability.
• Identification of design strategies that promote catalyst adaptivity.

Conclusions:

• Adaptive catalysis, guided by the R³ rule, is crucial for sustainable chemical production.
• The proposed framework offers a new perspective for designing catalysts for variable feedstocks.
• This approach holds significant potential for advancing chemical energy conversion technologies.