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<p>Emission control catalysts are the primary means of mitigating automobile exhaust pollution, and diverse catalysts have been developed, including TWC, MOC, ASC, DOC, NDC, and others. To further decrease vehicle emissions and enhance overall air quality, continuous upgrades of these catalysts are necessary. The methodologies and standards for evaluating the performance of automobile emission control catalysts are pivotal for their technological advancement. While various countries have issued regulations outlining test items, procedures, and evaluation indicators for engine bench and whole-vehicle emission assessments, no universally recognized evaluation methods or protocols exist for laboratory simulation evaluations of catalyst performance. This paper initially introduces the technical pathways for emission control in vehicles using diverse fuels. Subsequently, it comprehensively reviews the activity and lifespan evaluation methods for emission control catalysts across three levels: laboratory simulation, engine bench, and whole-vehicle evaluations, providing relevant evaluation standards for reference. It elaborates on laboratory simulation evaluation techniques, test conditions, and performance indicators for different catalysts, analyzes catalyst deactivation mechanisms, and summarizes research advancements in durability evaluation methods. Lastly, the paper prospects the future focus of research on performance evaluation methodologies for automobile emission control catalysts.&#xa0;</p> Graphical Abstract <p></p>

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The State-of-the-Art in Catalyst Performance Evaluation for Automobile Emission Control in China

  • 期刊论文

  • 发表日期：

    2025年5月7日

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  • Xi Liu,
  • Yuankai Shao,
  • Maoxuan Wang,
  • Anqi Dong,
  • Yatao Liu,
  • Xiaoning Ren,
  • Kaixiang Li,
  • Bingjie Zhou,
  • Weikang Zhu,
  • Hanming Wu,
  • Zhenguo Li

摘要

Emission control catalysts are the primary means of mitigating automobile exhaust pollution, and diverse catalysts have been developed, including TWC, MOC, ASC, DOC, NDC, and others. To further decrease vehicle emissions and enhance overall air quality, continuous upgrades of these catalysts are necessary. The methodologies and standards for evaluating the performance of automobile emission control catalysts are pivotal for their technological advancement. While various countries have issued regulations outlining test items, procedures, and evaluation indicators for engine bench and whole-vehicle emission assessments, no universally recognized evaluation methods or protocols exist for laboratory simulation evaluations of catalyst performance. This paper initially introduces the technical pathways for emission control in vehicles using diverse fuels. Subsequently, it comprehensively reviews the activity and lifespan evaluation methods for emission control catalysts across three levels: laboratory simulation, engine bench, and whole-vehicle evaluations, providing relevant evaluation standards for reference. It elaborates on laboratory simulation evaluation techniques, test conditions, and performance indicators for different catalysts, analyzes catalyst deactivation mechanisms, and summarizes research advancements in durability evaluation methods. Lastly, the paper prospects the future focus of research on performance evaluation methodologies for automobile emission control catalysts. 

Graphical Abstract