By effectively controlling the strong metal-support interaction (SMSI), the formation of acid sites and oxygen vacancies (O) on the Pt/CeO catalyst was optimized. The efficient co-combustion of toluene and CO on Pt/CeO-450 was achieved. In the dual-pollutant system, when the conversion rate was 90 %, the corresponding conversion temperatures of toluene and CO were 165 °C and 173 °C, respectively. With the increase of SMSI, the catalytic activity of Pt/CeO showed a trend of first increase and then decrease. This was proportional to the content of weak acid sites, medium acid sites, and O generated on their surfaces. Compared with the combustion of a single pollutant, the result displays that toluene and CO had significant competitive adsorption on Pt/CeO. The inhibition of toluene on CO also showed the same trend as the catalytic activity with the increase of SMSI. Under the double inhibition, Pt/CeO exhibited preferential selectivity for toluene combustion. However, the in situ DRIFTS results showed that this competitive adsorption phenomenon did not interfere with the combustion reaction path. The co-combustion of toluene and CO follows independent reaction paths. This work provides valuable insights and ideas for realizing the development of efficient and environmentally friendly catalysts through SMSI regulation.

中文翻译：

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促进甲苯和CO在Pt/CeO2催化剂中高效共燃：东方调整氧化SMSI以优化酸位和氧空位

通过有效控制强金属-载体相互作用（SMSI），优化了 Pt/CeO 催化剂上酸位和氧空位（O）的形成。实现了甲苯和CO在Pt/CeO-450上的高效共燃烧。在双污染物体系中，当转化率为90%时，甲苯和CO相应的转化温度分别为165℃和173℃。随着SMSI的增加，Pt/CeO的催化活性呈现先增加后减少的趋势。这与弱酸位点、中酸位点和在其表面产生的O的含量成正比。与单一污染物的燃烧相比，结果表明甲苯和CO在Pt/CeO上具有显着的竞争吸附。随着SMSI的增加，甲苯对CO的抑制也表现出与催化活性相同的趋势。在双重抑制作用下，Pt/CeO对甲苯燃烧表现出优先选择性。然而，原位DRIFTS结果表明，这种竞争吸附现象并没有干扰燃烧反应路径。甲苯和CO的共燃烧遵循独立的反应路径。这项工作为通过SMSI监管实现高效环保催化剂的开发提供了宝贵的见解和想法。