P改性Pt/CeO<sub>2</sub>单原子催化剂的CO低温氧化催化性能研究

翟晓珊; 王骞; 王梓林; 吕岩; 郭延文; 丁传敏

doi:10.12434/j.issn.2097-2547.20250125

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P改性Pt/CeO₂单原子催化剂的CO低温氧化催化性能研究

C1化学与催化转化 | 更新时间：2026-04-23

- P改性Pt/CeO₂单原子催化剂的CO低温氧化催化性能研究
- Study on catalytic performance of P-modified Pt/CeO₂ single-atom catalyst for low-temperature CO oxidation
- 低碳化学与化工 2026, 51(4): 31-37.
- 作者机构：
  
  1.太原理工大学化学与化工学院，山西太原 030024
  2.中国科学院大连化学物理研究所，辽宁大连 116023
- 作者简介：
  
  翟晓珊（2000—），硕士研究生，研究方向为单原子催化剂，E-mail：zhaixiaoshan0724@link.tyut.edu.cn。
  丁传敏（1988—），博士，副教授，研究方向为多相催化剂，E-mail：dingchuanmin@tyut.edu.cn。
- 基金信息：
  
  山西省自然科学基金面上项目(202203021221091)
- DOI：10.12434/j.issn.2097-2547.20250125
  中图分类号： TQ426;O643.3
- 收稿：2025-03-19，
  
  修回：2025-05-14，
  
  纸质出版：2026-04-25
- 稿件说明：
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翟晓珊,王骞,王梓林等.P改性Pt/CeO₂单原子催化剂的CO低温氧化催化性能研究[J].低碳化学与化工,2026,51(4):31-37.

ZHAI Xiaoshan,WANG Qian,WANG Zilin,et al.Study on catalytic performance of P-modified Pt/CeO₂ single-atom catalyst for low-temperature CO oxidation[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(4):31-37.
翟晓珊,王骞,王梓林等.P改性Pt/CeO₂单原子催化剂的CO低温氧化催化性能研究[J].低碳化学与化工,2026,51(4):31-37. DOI： 10.12434/j.issn.2097-2547.20250125.

ZHAI Xiaoshan,WANG Qian,WANG Zilin,et al.Study on catalytic performance of P-modified Pt/CeO₂ single-atom catalyst for low-temperature CO oxidation[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(4):31-37. DOI： 10.12434/j.issn.2097-2547.20250125.

摘要

CO是一种分布广泛的空气污染物，对环境和人体健康构成重大威胁。目前，CO热催化氧化被认为是最节能、最高效的转化方法，而采用传统浸渍法制备的Pt/CeO

催化剂已接近其催化性能的极限。对于负载型Pt/CeO

单原子催化剂而言，载体的表面性质以及金属单原子的局部配位环境对其催化性能有重要影响。通过浸渍法引入磷酸制备了P改性单原子催化剂Pt/CeO

，利用XRD、CO-DRIFTS和FT-IR等方法对催化剂的结构进行了表征，并对其催化性能进行了研究。结果表明，当

(磷酸)/

(CeO

) ≤ 0.0850时，Pt以单原子的形式存在于催化剂中。Pt/CeO

中，形成了P—O—Pt 配位，并且其Lewis酸量增大，也产生了微量的Brønsted酸，有利于CO吸附。同时，Pt/CeO

的还原性能提高，所以其CO低温氧化催化性能明显提升。其中，Pt/CeO

-0.085PO

催化性能最优，使得CO转化温度降低为40 ℃，CO转化率达到100%的温度降低为110 ℃。

Abstract

CO is a widely distributed air pollutant that poses a significant threat to the environment and human health. At present

CO thermal catalytic oxidation is considered to be the most energy-efficient and efficient conversion method

but the Pt/CeO

catalyst prepared by traditional impregnation method is close to the limit of its catalytic performance. For supported Pt/CeO

single-atom catalyst

the surface properties of the support and the local coordination environments of the metal single-atom play an important role in its catalytic performance. The P-modified single-atom catalyst Pt/CeO

was prepared by the introduction of phosphoric acid by impregnation

and the structure of the Pt/CeO

was characterized by XRD

CO-DRIFTS

FT-IR and so on

and the catalytic performance was studied. The results show that when

(phosphoric acid)/

(CeO

) ≤ 0.0850

Pt exists in the catalyst as a single atom. For Pt/CeO

P—O—Pt coordination is formed

and its total amount of Lewis acid sites increases

and a trace amount of Brønsted acid is also generated

which is beneficial for

the CO adsorption. At the same time

the reduction performance of the catalyst is improved

so the catalytic performance for low-temperature CO oxidation is significantly improved. Pt/CeO

-0.085PO

shows the best catalytic performance

reducing the CO conversion temperature to 40 ℃ and reducing the temperature at which the CO conversion rate reaches 100% to 110 ℃.

关键词

Keywords

references

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P改性Pt/CeO2单原子催化剂的CO低温氧化催化性能研究

Study on catalytic performance of P-modified Pt/CeO2 single-atom catalyst for low-temperature CO oxidation

DOI：10.12434/j.issn.2097-2547.20250125

摘要

Abstract

关键词

Keywords

references

P改性Pt/CeO₂单原子催化剂的CO低温氧化催化性能研究

Study on catalytic performance of P-modified Pt/CeO₂ single-atom catalyst for low-temperature CO oxidation