Promotion effect of element doping on the moisture resistance property of iron-based spinel catalysts for CO-SCR reaction

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-20 DOI:10.1016/j.jtice.2025.106097

Xiaotong Li , Jie Zhou , Mingzhe Dong , Wenpeng Tong , Lei Zhong , Songjian Zhao

{"title":"Promotion effect of element doping on the moisture resistance property of iron-based spinel catalysts for CO-SCR reaction","authors":"Xiaotong Li , Jie Zhou , Mingzhe Dong , Wenpeng Tong , Lei Zhong , Songjian Zhao","doi":"10.1016/j.jtice.2025.106097","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Research on the carbon monoxide selective catalytic reduction of nitric oxides (CO-SCR) primarily emphasizes the conversion of NO<sub>x</sub> and the resistance to moisture at low temperatures.</div></div><div><h3>Methods</h3><div>A series of MFe<sub>2</sub>O<sub>4</sub> catalysts, where M represented Cu, Co, Ni, and Mn, were synthesized through a solvothermal method and subsequently utilized in research focused on CO-SCR.</div></div><div><h3>Significant findings</h3><div>NiFe<sub>2</sub>O<sub>4</sub> exhibited excellent NO conversion in the range of 150∼250 °C, reaching 100 % conversion at 225 °C. Also, it possessed well CO conversion rate, water resistance, and stability. It was found that the main active site of CO-SCR over NiFe<sub>2</sub>O<sub>4</sub> catalyst was the redox balance of synergistic effect between Ni and Fe, which accelerated electron transfer. The improvement of the denitration performance of the nickel doping could be attributed to more active surface oxygen, more active component ratio (Fe<sup>2+</sup>), and larger specific surface area. This study provided an idea for exploring efficient and stable CO-SCR catalysts.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106097"},"PeriodicalIF":5.5000,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Taiwan Institute of Chemical Engineers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1876107025001506","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Background

Research on the carbon monoxide selective catalytic reduction of nitric oxides (CO-SCR) primarily emphasizes the conversion of NO_x and the resistance to moisture at low temperatures.

Methods

A series of MFe₂O₄ catalysts, where M represented Cu, Co, Ni, and Mn, were synthesized through a solvothermal method and subsequently utilized in research focused on CO-SCR.

Significant findings

NiFe₂O₄ exhibited excellent NO conversion in the range of 150∼250 °C, reaching 100 % conversion at 225 °C. Also, it possessed well CO conversion rate, water resistance, and stability. It was found that the main active site of CO-SCR over NiFe₂O₄ catalyst was the redox balance of synergistic effect between Ni and Fe, which accelerated electron transfer. The improvement of the denitration performance of the nickel doping could be attributed to more active surface oxygen, more active component ratio (Fe²⁺), and larger specific surface area. This study provided an idea for exploring efficient and stable CO-SCR catalysts.

Abstract Image

查看原文本刊更多论文

元素掺杂对CO-SCR反应铁基尖晶石催化剂抗湿性能的促进作用

一氧化碳选择性催化还原一氧化氮（CO-SCR）的研究主要侧重于NOx的转化和低温下的耐湿气性。方法采用溶剂热法合成了一系列MFe2O4催化剂，其中M代表Cu、Co、Ni和Mn，并将其用于Co - scr的研究。在150 ~ 250°C范围内，snife2o4表现出优异的NO转化率，在225°C时达到100%的转化率。具有良好的CO转化率、耐水性和稳定性。发现CO-SCR在NiFe2O4催化剂上的主要活性位点是Ni和Fe之间协同作用的氧化还原平衡，加速了电子转移。镍掺杂的脱硝性能的提高可归因于更高的活性表面氧、更高的活性组分比（Fe2+）和更大的比表面积。该研究为探索高效、稳定的CO-SCR催化剂提供了思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.