Redox-Stable Perovskite for Storage of Nitrogen Oxides from Exhaust Gases

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention relates to a novel perovskite compound (formulas 1 and 2) that is redox-stable and can store nitrogen oxides (NOx) from exhaust gases. The invention also covers ceramic materials containing these perovskites with porous inert carriers, methods for their production, and their application as NOx storage media and catalysts.

Use CasesContent extracted from patent full text and abstract with AI.

• Emission control systems in vehicles to reduce NOx pollution from exhaust gases
• Industrial plants for capturing and storing NOx emissions before release into the atmosphere
• Integration into catalytic converters to enhance NOx removal efficiency
• Use in stationary power plants or combustors where NOx emissions are a concern
• Environmental monitoring and air purification systems focused on NOx capture

BenefitsContent extracted from patent full text and abstract with AI.

• Improved ability to capture and store harmful NOx gases from exhaust, leading to cleaner emissions
• Stability of the perovskite material under redox conditions improves longevity and reliability of emission control systems
• Potentially higher storage efficiency compared to existing NOx storage materials
• Versatility of application in various engines and industrial processes
• Helps meet stricter environmental regulations for nitrogen oxide emissions

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a perovskite of the general formula (1) or (2), as well as oxidic ceramic materials comprising the perovskites of formula (1) or (2) and an inert porous support material, as well as methods for their preparation and their use as NOx storage materials for storing nitrogen oxides from exhaust gases, as well as NOx storage materials and catalysts comprising the same.