Selective oxidation by TS-1 coupled with in-situ synthesised H₂O₂

Area of Science:

• Catalysis
• Green Chemistry
• Materials Science

Background:

• Titanosilicate zeotypes offer efficient feedstock valorisation using preformed hydrogen peroxide (H2O2).
• Commercial H2O2 presents environmental and financial challenges, driving interest in alternative methods.
• In-situ H2O2 synthesis is emerging as a sustainable solution for chemical transformations.

Purpose of the Study:

• To provide an overview of in-situ H2O2-mediated oxidative catalysis.
• To highlight key contributions in the field of in-situ oxidant generation.
• To assess the potential of in-situ H2O2 for replacing existing industrial processes.

Main Methods:

• Review of literature on in-situ H2O2 synthesis and application in catalysis.
• Focus on titanosilicate zeotypes, particularly TS-1, as catalysts.
• Examination of propene epoxidation and ketone ammoximation as key industrial examples.

Main Results:

• In-situ H2O2 offers enhanced selectivity, lower operating temperatures, and improved process efficiency.
• Potential to reduce energy usage and enhance atom economy compared to traditional methods.
• Demonstrates viability for crucial industrial processes like propene epoxidation and ketone ammoximation.

Conclusions:

• In-situ H2O2 generation is a promising strategy for sustainable feedstock upgrading.
• This approach can significantly contribute to the chemical industry's sustainability goals.
• Potential to replace current technologies reliant on preformed H2O2, offering environmental and economic benefits.