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Light-Controlled Nanoparticle Collision Experiments
Wang, Qian1,3; Bae, Je Hyun1,4; Nepomnyashchii, Alexander B.1; Jia, Rui1,2; Zhang, Suojiang3; Mirkin, Michael, V1,2
2020-04-16
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY LETTERS
ISSN1948-7185
Volume11Issue:8Pages:2972-2976
AbstractElectrochemical monitoring of catalytically amplified collisions of individual metal nanoparticles (NP) with ultramicroelectrodes (UME) has been extensively used to study electrocatalysis, mass-transport, and charge-transfer processes at the single NP level. More recently, photoelectrochemical collision experiments were carried out with semiconductive NPs. Here, we introduce two new types of light-controlled nanoimpact experiments. The first experiment involves localized photodeposition of catalyst (Pt) on TiO2 NPs with a glass-sheathed carbon fiber simultaneously serving as the light guide and collector UME. The collisions of in situ prepared Pt@TiO2 NPs with the carbon surface produced blips of water oxidation current, while the activity of pristine TiO2 NPs was too low to yield measurable signal. In another experiment, collisions of catalytic (Ir oxide) NPs with the semiconductor (Nb doped n-type TiO2 rutile single crystal) electrode are monitored by measuring the photocurrent of water oxidation.
DOI10.1021/acs.jpclett.0c00585
Language英语
WOS KeywordTIO2 POWDER ; PHOTODEPOSITION ; PLATINUM ; PHOTOANODES
Funding ProjectU.S. Department of Energy, Basic Energy Sciences[DE-SC0017603]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
Funding OrganizationU.S. Department of Energy, Basic Energy Sciences
WOS IDWOS:000526353000027
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40007
Collection中国科学院过程工程研究所
Corresponding AuthorMirkin, Michael, V
Affiliation1.CUNY Queens Coll, Dept Chem & Biochem, Flushing, NY 11367 USA
2.CUNY, Grad Ctr, New York, NY 10016 USA
3.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China
4.Chungnam Natl Univ, Grad Sch Analyt Sci & Technol, Daejeon 34134, South Korea
Recommended Citation
GB/T 7714
Wang, Qian,Bae, Je Hyun,Nepomnyashchii, Alexander B.,et al. Light-Controlled Nanoparticle Collision Experiments[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2020,11(8):2972-2976.
APA Wang, Qian,Bae, Je Hyun,Nepomnyashchii, Alexander B.,Jia, Rui,Zhang, Suojiang,&Mirkin, Michael, V.(2020).Light-Controlled Nanoparticle Collision Experiments.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,11(8),2972-2976.
MLA Wang, Qian,et al."Light-Controlled Nanoparticle Collision Experiments".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 11.8(2020):2972-2976.
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