Quantitative Analysis of the Interface between Titanium Dioxide Support and Noble Metal by Electron Energy Loss Spectroscopy

doi:10.1021/acsami.3c09791

IMR OpenIR

	Quantitative Analysis of the Interface between Titanium Dioxide Support and Noble Metal by Electron Energy Loss Spectroscopy
	Chen, Junnan 1,2; Qi, Yujie 1; Lu, Ming 1,3; Dong, Shaoming 1,2; Zhang, Bingsen 1,2
通讯作者	Zhang, Bingsen(bszhang@imr.ac.cn)
	2023-08-24
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	15 期号:35 页码:42104-42111
摘要	The interface structure of supported catalysts plays a significant role in the strong metal-support interactions (SMSI). However, it remains limited on interpreting interface structures, thus affecting the understanding of SMSI origin and impact on catalytic performance. Herein, electronic energy loss spectroscopy was adopted to characterize the interface microstructures of Pt/TiO2 materials. After high-temperature reduction processing, it was observed that the coating on the surface of the Pt metal particles was TiOx . Then, based on Gaussian function fitting, an effective and valid method was established for quantitative analysis on Ti L edge loss spectrum. This method allowed us to accurately determine the stoichiometric number of TiOx phases. In order to probe the classical phenomenon of strong metal-support interactions in more detail, we also discussed and analyzed the origin of TiOx and its effect on the electronic structure of the material using density functional theory calculations. The structure of surfaces and interfaces as well as the chemical evolution of supported catalysts on a microscale have been revealed, thereby providing a new analysis method and research perspectives for the future study of metal-support interactions.
关键词	EELS titanium dioxide oxygen vacancies metal-support interactions DFT
资助者	National Natural Science Foundation of China ; Research Fund of Shenyang National Laboratory for Materials Science ; Development Plan of Science and Technology of Jilin Province
DOI	10.1021/acsami.3c09791
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[22072164] ; National Natural Science Foundation of China[5216114540] ; Research Fund of Shenyang National Laboratory for Materials Science ; Development Plan of Science and Technology of Jilin Province[YDZJ202201ZYTS305]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001063566900001
出版者	AMER CHEMICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179133
专题	中国科学院金属研究所
通讯作者	Zhang, Bingsen
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Jilin Normal Univ, Joint Lab MXene Mat, Key Lab Funct Mat Phys & Chem, Minist Educ, Changchun 130103, Peoples R China
推荐引用方式 GB/T 7714	Chen, Junnan,Qi, Yujie,Lu, Ming,et al. Quantitative Analysis of the Interface between Titanium Dioxide Support and Noble Metal by Electron Energy Loss Spectroscopy[J]. ACS APPLIED MATERIALS & INTERFACES,2023,15(35):42104-42111.
APA	Chen, Junnan,Qi, Yujie,Lu, Ming,Dong, Shaoming,&Zhang, Bingsen.(2023).Quantitative Analysis of the Interface between Titanium Dioxide Support and Noble Metal by Electron Energy Loss Spectroscopy.ACS APPLIED MATERIALS & INTERFACES,15(35),42104-42111.
MLA	Chen, Junnan,et al."Quantitative Analysis of the Interface between Titanium Dioxide Support and Noble Metal by Electron Energy Loss Spectroscopy".ACS APPLIED MATERIALS & INTERFACES 15.35(2023):42104-42111.