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[1]李鹏松,罗海彬,覃远航*.CeO2-NiO-CuO三金属催化剂的制备及其CO选择性催化还原性能研究[J].武汉工程大学学报,2026,48(01):18-25.[doi:10.19843/j.cnki.CN42-1779/TQ.202504007]
　LI Pengsong,LUO Haibin,QIN Yuanhang*.Synthesis of CeO2-NiO-CuO trimetallic catalyst and its CO selective catalytic reduction performance[J].Journal of Wuhan Institute of Technology,2026,48(01):18-25.[doi:10.19843/j.cnki.CN42-1779/TQ.202504007]
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CeO2-NiO-CuO三金属催化剂的制备及其CO选择性催化还原性能研究
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
48
期数:
2026年01期
页码:
18-25
栏目:
现代大化工
出版日期:
2026-02-28

文章信息/Info

Title:
Synthesis of CeO2-NiO-CuO trimetallic catalyst and its CO selective catalytic reduction performance
文章编号:
1674 - 2869（2026）01 - 0018 - 08
作者:
李鹏松; 罗海彬; 覃远航*
武汉工程大学化工与制药学院，绿色化工过程教育部重点实验室（武汉工程大学），
新型反应器与绿色化工技术湖北省重点实验室（武汉工程大学），湖北 武汉 430205
Author(s):
LI Pengsong;  LUO Haibin;  QIN Yuanhang*
School of Chemical Engineering and Pharmacy，Wuhan Institute of Technology，Key Laboratory of Green Chemical Engineering Process （Wuhan Institute of Technology）， Ministry of Education，Hubei key Laboratory of Novel Reactor and Green Chemical Technology（Wuhan Institute of Technology），Wuhan 430205, China
关键词:
氮氧化物; CO-选择性催化还原; CeO2-NiO-CuO; 氧空位; 氧化还原性能
Keywords:
nitrogen oxides;  CO-selective catalytic reduction;  CeO2-NiO-CuO;  oxygen vacancies;  redox property
分类号:
X511.06
DOI:
10.19843/j.cnki.CN42-1779/TQ.202504007
文献标志码:
A
摘要:
氮氧化物（NOx）和一氧化碳（CO）广泛存在于工业废气和机动车尾气中，对生态环境和人类健康可构成严重威胁，CO选择性催化还原NO（CO-SCR）技术因可同时去除NOx和CO而备受关注。CO-SCR技术的核心在于催化剂，而高效、低成本CO-SCR催化剂的缺失是目前限制该技术大规模应用的关键因素之一，因而基于熔盐法构筑了一种低成本、高活性的CeO2-NiO-CuO三金属氧化物催化剂。CO-SCR性能测试表明，该催化剂在低温条件下表现出优异的活性：在100 ℃时NO转化率达到44%，110 ℃时提升至61%（相较于CeO2-NiO催化剂提高了10%），并在150 ℃时实现100%转化。采用X射线衍射、扫描电镜、透射电镜、拉曼、氢气程序升温还原、N2吸附/脱附、X射线光电子能谱等技术系统研究了催化剂的微观结构、表面化学状态和氧化还原性能。结果表明，部分Cu和Ni进入CeO2晶格，诱导催化剂表面产生了大量氧空位（OVs），显著增强了催化剂的氧化还原能力。CeO2-NiO-CuO催化剂优异的CO-SCR性能主要归因于：（1）丰富的OVs促进了NO的吸附与活化；（2）增强的氧化还原能力加速了CO对NO的还原过程。本研究为高效CO-SCR催化剂的设计和开发提供了新的思路。
Abstract:
Nitrogen oxides (NOx) and carbon monoxide (CO), widely present in industrial waste gases and vehicle exhaust, pose severe threats to the ecological environment and human health. The CO-SCR technology(CO selective catalytic reduction) of NO has attracted considerable attention because it enables simultaneous removal of NOx and CO. The core of CO-SCR lies in catalysts, yet the lack of efficient, low-cost catalysts remains a key factor limiting its large-scale application. Herein, a low-cost, highly active CeO2-NiO-CuO trimetallic oxide catalyst was prepared using a molten-salt method.?CO-SCR performance tests showed that the catalyst exhibited excellent activity at low temperatures, achieving 44% NO conversion at 100?℃, 61% at 110?℃ (a 10% improvement over the CeO2-NiO catalyst), and complete conversion (100%) at 150 ℃. The microstructure, surface chemical states, and redox properties of the catalyst were systematically characterized using XRD, SEM, TEM, Raman, H2-TPR, N2 adsorption-desorption, and XPS. The results indicated that partial incorporation of Cu and Ni into the CeO2 lattice induced formation of abundant oxygen vacancies (OVs) on the surface of the catalyst, significantly enhancing its redox capacity. The superior CO-SCR performance of the catalyst was primarily attributed to (1) the rich OVs promoting NO adsorption and activation, and (2) the enhanced redox capability accelerating the reduction of NO by CO. This study provides new insight for developing highly efficient CO-SCR catalysts.

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相似文献/References:

[1]杨赛兰,钟昕,秦帆,等.氮氧化物的催化还原研究与展望[J].武汉工程大学学报,2012,(2):6.
　YANG Sai\|lan,ZHONG Xin,QIN Fan,et al.Research progress and prospects in catalytic reduction of nitrogen oxides[J].Journal of Wuhan Institute of Technology,2012,(01):6.

备注/Memo

备注/Memo:
收稿日期：2025-04-11
基金项目：国家自然科学基金（52370118、52000084）
作者简介：李鹏松，硕士研究生。Email：3227043217@qq.com
*通信作者：覃远航，博士，教授。Email：qyhsir@qq.com
更新日期/Last Update: 2026-03-09