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Noble-Metal-Assisted Fast Interfacial Oxygen Migration with Topotactic Phase Transition in Perovskite Oxides
Wang, Qian1; Gu, Youdi2; Zhu, Wenxuan1; Han, Lei1; Pan, Feng1; Song, Cheng1
Corresponding AuthorSong, Cheng(songcheng@mail.tsinghua.edu.cn)
2021-09-12
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Pages9
AbstractTransition-metal perovskite oxides constitute a series of functional material systems for electronics, catalysis, and energy-conversion processes, in which oxygen migration and evolution play a key role. However, the stable metal-oxygen (M-O) bond forms a large energy barrier inhibiting ion diffusion. Therefore, seeking efficient and facile approaches to accelerate oxygen kinetics has become a significant issue. Here, the interaction (interfacial charge transfer and cooperative bonding) between noble metal (Pt, Ag) and perovskites oxide (SrCoO3-delta) is employed to weaken the (M-O) bond and decrease the energy barrier of oxygen migration. Noble metal layers serving as oxygen pumps can continuously extract oxygen from oxide films to the atmosphere. The temperature of the topotactic phase transition from perovskite (SrCoO3) to brownmillerite (SrCoO2.5) is remarkably lowered from approximate to 200 degrees C to room temperature. Furthermore, this approach can also be applied to SrFeO3 for similar topotactic phase reduction by moderate thermal activation. The finding of this study paves a promising and general pathway to achieve fast oxygen migration in perovskite oxides, with important application prospects in low-temperature electrodes and high-activity catalysis interface.
Keywordbarrier decrease noble metals oxygen ion migration perovskite oxides topotactic phase transition
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Beijing Municipality ; Beijing Innovation Center for Future Chip (ICFC), Tsinghua University
DOI10.1002/adfm.202106765
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFB0405704] ; National Natural Science Foundation of China[51871130] ; National Natural Science Foundation of China[51671110] ; Natural Science Foundation of Beijing Municipality[JQ20010] ; Beijing Innovation Center for Future Chip (ICFC), Tsinghua University
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000694958500001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166976
Collection中国科学院金属研究所
Corresponding AuthorSong, Cheng
Affiliation1.Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat MOE, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qian,Gu, Youdi,Zhu, Wenxuan,et al. Noble-Metal-Assisted Fast Interfacial Oxygen Migration with Topotactic Phase Transition in Perovskite Oxides[J]. ADVANCED FUNCTIONAL MATERIALS,2021:9.
APA Wang, Qian,Gu, Youdi,Zhu, Wenxuan,Han, Lei,Pan, Feng,&Song, Cheng.(2021).Noble-Metal-Assisted Fast Interfacial Oxygen Migration with Topotactic Phase Transition in Perovskite Oxides.ADVANCED FUNCTIONAL MATERIALS,9.
MLA Wang, Qian,et al."Noble-Metal-Assisted Fast Interfacial Oxygen Migration with Topotactic Phase Transition in Perovskite Oxides".ADVANCED FUNCTIONAL MATERIALS (2021):9.
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