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Ultra-Small Platinum Nanoparticles Encapsulated in Sub-50 nm Hollow Titania Nanospheres for Low-Temperature Water-Gas Shift Reaction
Zhao, Hongyu1,2; Yao, Siyu4; Zhang, Mengtao4; Huang, Fei3; Fan, Qikui1,2; Zhang, Shumeng1,2; Liu, Hongyang3; Ma, Ding4; Gao, Chuanbo1,2
Corresponding AuthorLiu, Hongyang(liuhy@imr.ac.cn) ; Ma, Ding(dma@pku.edu.cn) ; Gao, Chuanbo(gaochuanbo@mail.xjtu.edu.cn)
2018-10-31
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume10Issue:43Pages:36954-36960
AbstractUltra-small platinum nanoparticles loaded over titania is a promising catalyst for the low-temperature water gas shift (WGS) reaction and shows the potential to work in a mobile hydrogen fuel cell system. Their precise size engineering (<3 nm) and reliable stabilization remain challenging. To address these issues, we report a reverse-micelle synthesis approach, which affords uniform ultra-small platinum nano particles (tunable in similar to 1.0-2.6 nm) encapsulated in hollow titania nanospheres with a shell thickness of only similar to 3-5 nm and an overall diameter of only similar to 32 nm. The Pt@TiO2 yolk/shell nanostructured catalysts display extraordinary stability and monotonically increasing activity with the decreasing size of the Pt nanoparticles in the WGS. The size-dependent variation in the electronic property of the Pt nanoparticles and the reducible oxide encapsulation that prevents the Pt nanoparticles from sintering are ascribed as the main reasons for the excellent catalytic performance.
Keywordultra-small platinum nanoparticles hollow titania nanospheres encapsulation water-gas shift size-dependent catalysis
Funding OrganizationNational Natural Science Foundation of China ; Cyrus Tang Foundation ; Ministry of Science and Technology (MOST) ; Youth Innovation Promotion Association Chinese Academy of Sciences
DOI10.1021/acsami.8b12192
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21671156] ; National Natural Science Foundation of China[21301138] ; National Natural Science Foundation of China[91545110] ; National Natural Science Foundation of China[21573254] ; Cyrus Tang Foundation ; Ministry of Science and Technology (MOST)[2016YFA0204100] ; Youth Innovation Promotion Association Chinese Academy of Sciences
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000449239600040
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130234
Collection中国科学院金属研究所
Corresponding AuthorLiu, Hongyang; Ma, Ding; Gao, Chuanbo
Affiliation1.Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710054, Shaanxi, Peoples R China
2.Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710054, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
4.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Hongyu,Yao, Siyu,Zhang, Mengtao,et al. Ultra-Small Platinum Nanoparticles Encapsulated in Sub-50 nm Hollow Titania Nanospheres for Low-Temperature Water-Gas Shift Reaction[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(43):36954-36960.
APA Zhao, Hongyu.,Yao, Siyu.,Zhang, Mengtao.,Huang, Fei.,Fan, Qikui.,...&Gao, Chuanbo.(2018).Ultra-Small Platinum Nanoparticles Encapsulated in Sub-50 nm Hollow Titania Nanospheres for Low-Temperature Water-Gas Shift Reaction.ACS APPLIED MATERIALS & INTERFACES,10(43),36954-36960.
MLA Zhao, Hongyu,et al."Ultra-Small Platinum Nanoparticles Encapsulated in Sub-50 nm Hollow Titania Nanospheres for Low-Temperature Water-Gas Shift Reaction".ACS APPLIED MATERIALS & INTERFACES 10.43(2018):36954-36960.
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