What question did this study set out to answer?

The research aims to improve the mobility of active oxygen species in Co3O4/CeZrO2 to develop efficient passive NOx adsorbers.

April 10, 2026

Unlocking lattice oxygen mobility via acid etching in Co 3 O 4 /CeZrO 2 for efficient passive NO x adsorption

Key Points

The research aims to improve the mobility of active oxygen species in Co3O4/CeZrO2 to develop efficient passive NOx adsorbers.
Utilized acid etching on Co3O4/CeZrO2 materials.
Evaluated performance in NOx adsorption under cold-start conditions (<200 °C).
Analyzed the impact on lattice oxygen mobility.
Improved lattice oxygen mobility was achieved through acid etching.
The modified adsorber showed enhanced NOx adsorption efficiency during cold starts.
Findings support better adherence to stringent emission standards.

Abstract

Enhancing active oxygen species mobility and replenishment to develop high-performance passive NO x adsorbers (PNAs) for effective NO x removal during the cold-start period (<200 °C) of diesel engines is crucial to meeting stringent emission standards.

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Cite This Study

Huang et al. (Thu,) studied this question.

synapsesocial.com/papers/69d895d86c1944d70ce07013 https://doi.org/https://doi.org/10.1039/d6ta01337f

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