In situ reaction-induced strong metal-support interaction to enhance catalytic performance and stability of toluene oxidation

IF 8.1 1区 工程技术 Q1 ENGINEERING, CHEMICAL
Xinhui Hao, Shuaining Wu, Xuelong Lv, Jing Chen, Hongpeng Jia
{"title":"In situ reaction-induced strong metal-support interaction to enhance catalytic performance and stability of toluene oxidation","authors":"Xinhui Hao, Shuaining Wu, Xuelong Lv, Jing Chen, Hongpeng Jia","doi":"10.1016/j.seppur.2024.130266","DOIUrl":null,"url":null,"abstract":"The construction of strong metal-support interaction (SMSI) represents an attractive strategy to enhance the catalytic performance of the catalysts. Herein, the SMSI state over the Pt/TiO<sub>2</sub> catalyst that inductively formed with a toluene atmosphere at a temperature below 300 °C is reported. During this process, the Pt species is covered by TiO<sub>x</sub> overlayers, while the Pt species is endowed to an electron-sufficient state, and more defects on the surface are produced simultaneously. Owing to the existence of formed SMSI, the interface of Pt and TiO<sub>2</sub> with an improved redox property is conducive for oxygen species activation to expedite toluene conversion. The experimental results demonstrate that the catalysts with SMSI state exhibit improved catalytic activity and stability (5 vol% water and 800 °C thermal treatment). This work posits that the SMSI state of noble metal-supported catalysts can be dynamically produced during toluene conversion, which paves a novel method for designing efficient catalysts for the practical elimination of VOCs.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.seppur.2024.130266","RegionNum":1,"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

The construction of strong metal-support interaction (SMSI) represents an attractive strategy to enhance the catalytic performance of the catalysts. Herein, the SMSI state over the Pt/TiO2 catalyst that inductively formed with a toluene atmosphere at a temperature below 300 °C is reported. During this process, the Pt species is covered by TiOx overlayers, while the Pt species is endowed to an electron-sufficient state, and more defects on the surface are produced simultaneously. Owing to the existence of formed SMSI, the interface of Pt and TiO2 with an improved redox property is conducive for oxygen species activation to expedite toluene conversion. The experimental results demonstrate that the catalysts with SMSI state exhibit improved catalytic activity and stability (5 vol% water and 800 °C thermal treatment). This work posits that the SMSI state of noble metal-supported catalysts can be dynamically produced during toluene conversion, which paves a novel method for designing efficient catalysts for the practical elimination of VOCs.

Abstract Image

原位反应诱导强金属-支撑相互作用,提高甲苯氧化的催化性能和稳定性
构建强金属-支撑相互作用(SMSI)是提高催化剂催化性能的一种有吸引力的策略。本文报告了 Pt/TiO2 催化剂在低于 300 °C 的甲苯气氛中感应形成的 SMSI 状态。在此过程中,铂元素被 TiOx 覆盖,同时铂元素被赋予电子充足状态,表面同时产生更多缺陷。由于形成的 SMSI 的存在,氧化还原性得到改善的铂和 TiO2 的界面有利于氧物种的活化,从而加速甲苯的转化。实验结果表明,具有 SMSI 状态的催化剂具有更高的催化活性和稳定性(5 Vol% 水和 800 °C 热处理)。这项研究认为,贵金属支撑催化剂的 SMSI 状态可在甲苯转化过程中动态产生,这为设计高效催化剂以实际消除挥发性有机化合物铺平了道路。
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
Separation and Purification Technology
Separation and Purification Technology 工程技术-工程:化工
CiteScore
14.00
自引率
12.80%
发文量
2347
审稿时长
43 days
期刊介绍: Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信