In situ growth of Fe-doped TiO2 on flexible Ti mesh for CO oxidation

IF 3.5 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Research on Chemical Intermediates Pub Date : 2025-07-22 DOI:10.1007/s11164-025-05695-1

Xinyue Tang, Liuduan Wen, Cong Cui, Zizhuang Zhang, Yulian Wang, Yulin Cheng, Baodan Liu

{"title":"In situ growth of Fe-doped TiO2 on flexible Ti mesh for CO oxidation","authors":"Xinyue Tang, Liuduan Wen, Cong Cui, Zizhuang Zhang, Yulian Wang, Yulin Cheng, Baodan Liu","doi":"10.1007/s11164-025-05695-1","DOIUrl":null,"url":null,"abstract":"<div>In this study, we developed a series of Fe-TiO2/Ti monolithic catalysts via a scalable multistep synthesis approach. It can be revealed that Fe loading can be precisely controlled by tuning the ion exchange duration, with comprehensive characterization confirming successful Fe incorporation into the TiO2 lattice. Compared to pristine TiO2/Ti, the Fe-doped catalysts exhibit significantly increased concentrations of chemisorbed oxygen species and oxygen vacancies, correlating with enhanced catalytic performance. The optimized Fe-TiO2/Ti catalyst achieves 100% CO conversion at ~ 258 °C, showing a marked improvement over the undoped counterpart. Furthermore, unlike conventional surface modifications of TiO2 supports, lattice doping provides an intrinsic solution to the persistent challenge of active component detachment, significantly enhancing the material's practical applicability. This work not only provides a facile yet effective ion doping strategy but also advances fundamental understanding of catalyst design, offering new avenues for developing robust catalytic systems.</div>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":"51 10","pages":"5595 - 5608"},"PeriodicalIF":3.5000,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Research on Chemical Intermediates","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11164-025-05695-1","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, we developed a series of Fe-TiO₂/Ti monolithic catalysts via a scalable multistep synthesis approach. It can be revealed that Fe loading can be precisely controlled by tuning the ion exchange duration, with comprehensive characterization confirming successful Fe incorporation into the TiO₂ lattice. Compared to pristine TiO₂/Ti, the Fe-doped catalysts exhibit significantly increased concentrations of chemisorbed oxygen species and oxygen vacancies, correlating with enhanced catalytic performance. The optimized Fe-TiO₂/Ti catalyst achieves 100% CO conversion at ~ 258 °C, showing a marked improvement over the undoped counterpart. Furthermore, unlike conventional surface modifications of TiO₂ supports, lattice doping provides an intrinsic solution to the persistent challenge of active component detachment, significantly enhancing the material's practical applicability. This work not only provides a facile yet effective ion doping strategy but also advances fundamental understanding of catalyst design, offering new avenues for developing robust catalytic systems.

查看原文本刊更多论文

在柔性钛网上原位生长fe掺杂TiO2用于CO氧化

在这项研究中，我们通过可扩展的多步合成方法开发了一系列Fe-TiO2/Ti单片催化剂。结果表明，通过调整离子交换时间可以精确控制铁的负载，综合表征证实了铁成功掺入到TiO2晶格中。与原始TiO2/Ti相比，fe掺杂的催化剂表现出明显增加的化学吸附氧浓度和氧空位，从而增强了催化性能。优化后的Fe-TiO2/Ti催化剂在~ 258℃下的CO转化率达到100%，比未掺杂的催化剂有明显提高。此外，与传统的TiO2载体表面修饰不同，晶格掺杂为活性成分脱落的持续挑战提供了一种内在的解决方案，显著提高了材料的实用性。这项工作不仅提供了一种简单而有效的离子掺杂策略，而且还推进了对催化剂设计的基本理解，为开发强大的催化系统提供了新的途径。

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

Research on Chemical Intermediates 化学-化学综合

CiteScore

5.70

自引率

18.20%

发文量

229

审稿时长

2.6 months

期刊介绍： Research on Chemical Intermediates publishes current research articles and concise dynamic reviews on the properties, structures and reactivities of intermediate species in all the various domains of chemistry. The journal also contains articles in related disciplines such as spectroscopy, molecular biology and biochemistry, atmospheric and environmental sciences, catalysis, photochemistry and photophysics. In addition, special issues dedicated to specific topics in the field are regularly published.