通过碳涂层提高 Pt/CeO2 催化剂在 CO 氧化过程中对二氧化硫的耐受性

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Communications Pub Date : 2024-02-01 DOI:10.1016/j.catcom.2024.106911

Yuwei Zhou , Xiao Yang , Xuan Tang , Yang Lou

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引用次数: 0

摘要

为工业应用开发耐硫催化剂至关重要，但也极具挑战性。本文在 Pt/CeO 中引入了碳壳，以抑制 SO 在 CO 氧化过程中造成的失活。化学性质和催化活性表明，Pt/CeO@C 能有效维持铂的价态，在 SO 和 HO 存在的情况下，其 CO 氧化的 T 值为 180 ℃。这种方法为提高废气处理催化剂对 SO 的耐受性提供了一个新的视角。

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Enhancing SO2 tolerance of Pt/CeO2 catalyst for CO oxidation via carbon-coated layers

Developing sulfur-tolerant catalysts for industrial application is crucial but yet challenging. Herein, carbon shells are introduced to Pt/CeO₂ to inhibit the deactivation caused by SO₂ for CO oxidation. The chemical properties and catalytic activity indicate that Pt/CeO₂@C effectively sustains the valence state of Pt species and exhibits T₁₀₀ of 180 °C for CO oxidation in the presence of SO₂ and H₂O. This approach provides a new perspective for enhancing the SO₂ tolerance of catalysts for exhaust treatment.

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.