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  1. AU="Jain, Prashant K"
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  1. Article ; Online: Primary role of photothermal heating in light-driven reduction of nitroarenes.

    Jain, Prashant K

    Nature nanotechnology

    2023  Volume 18, Issue 4, Page(s) 326

    Language English
    Publishing date 2023-03-30
    Publishing country England
    Document type Letter
    ZDB-ID 2254964-X
    ISSN 1748-3395 ; 1748-3387
    ISSN (online) 1748-3395
    ISSN 1748-3387
    DOI 10.1038/s41565-023-01352-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book ; Online: Superionic phase transition of copper(I) sulfide and its implication for purported superconductivity of LK-99

    Jain, Prashant K.

    2023  

    Abstract: Lee, Kim, and coworkers have recently claimed room-temperature and ambient-pressure superconductivity in a copper-doped lead apatite material named LK-99. However, the polycrystalline material synthesized has a significant fraction of copper(I) sulfide. ... ...

    Abstract Lee, Kim, and coworkers have recently claimed room-temperature and ambient-pressure superconductivity in a copper-doped lead apatite material named LK-99. However, the polycrystalline material synthesized has a significant fraction of copper(I) sulfide. Copper(I) sulfide has a known phase transition at 104 degrees C from an ordered low-temperature phase to a high-temperature superionic phase. As a result of this phase transition, copper(I) sulfide exhibits sharp transitions in electrical resistivity and heat capacity, which are expected to coincide with the temperature-induced transitions reported for LK-99. This implies that LK-99 must be synthesized without any copper(I) sulfide to allow unambiguous validation of the superconducting properties of LK-99.

    Comment: 6 pages, 3 figures
    Keywords Condensed Matter - Superconductivity ; Condensed Matter - Materials Science
    Publishing date 2023-08-09
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Comment on "Thermal effects - an alternative mechanism for plasmon-assisted photocatalysis" by Y. Dubi, I. W. Un and Y. Sivan,

    Jain, Prashant K

    Chemical science

    2020  Volume 11, Issue 33, Page(s) 9022–9023

    Abstract: A range of chemical reactions occurring on the surfaces of metal nanoparticles exhibit enhanced rates under plasmonic excitation. It is not straightforward to distinguish between photochemical and photothermal effect using Arrhenius fitting of the ... ...

    Abstract A range of chemical reactions occurring on the surfaces of metal nanoparticles exhibit enhanced rates under plasmonic excitation. It is not straightforward to distinguish between photochemical and photothermal effect using Arrhenius fitting of the reaction rates alone.
    Language English
    Publishing date 2020-08-13
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d0sc02914a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Superionic Conduction in One-Dimensional Nanostructures.

    Cho, Ki-Hyun / Jain, Prashant K

    ACS nano

    2022  Volume 16, Issue 8, Page(s) 12445–12451

    Abstract: Nanostructuring has become a powerful tool for tuning the electronic properties of materials and enhancing transport. As an example of relevance to next-generation battery technologies, nanocrystals have shown promise for realizing fast-ion conduction in ...

    Abstract Nanostructuring has become a powerful tool for tuning the electronic properties of materials and enhancing transport. As an example of relevance to next-generation battery technologies, nanocrystals have shown promise for realizing fast-ion conduction in solids; however, dissipationless ion transport over extended length scales is hindered by lossy interfaces formed between nanocrystals in a solid. Here we address this challenge by exploiting one-dimensional nanostructures for ion transport. Superionic conduction, with a record-high ionic conductivity of ∼4 S/cm at 150 °C, is demonstrated in solid electrolytes fabricated from nanowires of the earth-abundant solid copper selenide. This quasi-one-dimensional ionic conductivity is ∼5× higher than that in bulk cuprous selenide. Nanoscale dimensions in the radial direction lower ion-hopping barriers, while mesoscopically long, interface-free transport paths are available for ion transport in the axial direction. One-dimensional nanostructures can exceptionally boost solid-state devices that rely on ion transport.
    Language English
    Publishing date 2022-07-29
    Publishing country United States
    Document type Journal Article
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.2c03732
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The physics of plasmon-driven energy conversion.

    Jain, Prashant K / Kim, Zee Hwan / Wei, Wei David

    The Journal of chemical physics

    2023  Volume 159, Issue 7

    Language English
    Publishing date 2023-08-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3113-6
    ISSN 1089-7690 ; 0021-9606
    ISSN (online) 1089-7690
    ISSN 0021-9606
    DOI 10.1063/5.0168581
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 4' 49/16: Show issues

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  6. Article: Stochastic Noise in Single-Nanoparticle Catalysis

    Devasia, Dinumol / Jain, Prashant K.

    Journal of physical chemistry. 2021 Aug. 10, v. 125, no. 32

    2021  

    Abstract: Nanoparticle-based catalysts exhibit considerable complexity and heterogeneity. New light can be shed into these aspects by probing catalysis on the level of single nanoparticles. Here, we monitor on individual Ag nanoparticles plasmon-excitation-driven ... ...

    Abstract Nanoparticle-based catalysts exhibit considerable complexity and heterogeneity. New light can be shed into these aspects by probing catalysis on the level of single nanoparticles. Here, we monitor on individual Ag nanoparticles plasmon-excitation-driven CO₂ reduction and formation of multicarbon species on the Ag surface. The measurements show that catalytic activities and selectivities are variable from one nanoparticle to another, an effect that would typically be attributed to structural and morphological differences between nanoparticles. However, the nanoparticle-to-nanoparticle variations observed here are accompanied by temporal fluctuations in the catalytic activity. We infer that the variation captures, in addition to static heterogeneities in the nanoparticle-based catalyst, noise from inherent stochasticity of catalytic events occurring on the nanoparticle surface. Such noise can be an inadvertent source of variations observed in single-nanoparticle, single-molecule studies of catalysis.
    Keywords carbon dioxide ; catalysts ; catalytic activity ; nanosilver ; physical chemistry
    Language English
    Dates of publication 2021-0810
    Size p. 17734-17741.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1932-7455
    DOI 10.1021/acs.jpcc.1c05108
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: In Situ Electron Microscopy of Transformations of Copper Nanoparticles under Plasmonic Excitation.

    Alcorn, Francis M / van der Veen, Renske M / Jain, Prashant K

    Nano letters

    2023  Volume 23, Issue 14, Page(s) 6520–6527

    Abstract: Metal nanoparticles are attracting interest for their light-absorption properties, but such materials are known to dynamically evolve under the action of chemical and physical perturbations, resulting in changes in their structure and composition. Using ... ...

    Abstract Metal nanoparticles are attracting interest for their light-absorption properties, but such materials are known to dynamically evolve under the action of chemical and physical perturbations, resulting in changes in their structure and composition. Using a transmission electron microscope equipped for optical excitation of the specimen, the structural evolution of Cu-based nanoparticles under simultaneous electron beam irradiation and plasmonic excitation was investigated with high spatiotemporal resolution. These nanoparticles initially have a Cu core-Cu
    Language English
    Publishing date 2023-07-03
    Publishing country United States
    Document type Journal Article
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.3c01474
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Order via subito

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  8. Article ; Online: Time-resolved transmission electron microscopy for nanoscale chemical dynamics.

    Alcorn, Francis M / Jain, Prashant K / van der Veen, Renske M

    Nature reviews. Chemistry

    2023  Volume 7, Issue 4, Page(s) 256–272

    Abstract: The ability of transmission electron microscopy (TEM) to image a structure ranging from millimetres to Ångströms has made it an indispensable component of the toolkit of modern chemists. TEM has enabled unprecedented understanding of the atomic ... ...

    Abstract The ability of transmission electron microscopy (TEM) to image a structure ranging from millimetres to Ångströms has made it an indispensable component of the toolkit of modern chemists. TEM has enabled unprecedented understanding of the atomic structures of materials and how structure relates to properties and functions. Recent developments in TEM have advanced the technique beyond static material characterization to probing structural evolution on the nanoscale in real time. Accompanying advances in data collection have pushed the temporal resolution into the microsecond regime with the use of direct-electron detectors and down to the femtosecond regime with pump-probe microscopy. Consequently, studies have deftly applied TEM for understanding nanoscale dynamics, often in operando. In this Review, time-resolved in situ TEM techniques and their applications for probing chemical and physical processes are discussed, along with emerging directions in the TEM field.
    Language English
    Publishing date 2023-02-22
    Publishing country England
    Document type Journal Article ; Review
    ISSN 2397-3358
    ISSN (online) 2397-3358
    DOI 10.1038/s41570-023-00469-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Book ; Online: Taking the Heat Off of Plasmonic Chemistry

    Jain, Prashant K.

    2019  

    Abstract: Several chemical reactions catalyzed by plasmonic nanoparticles show enhanced rates under visible-light-excitation of the localized surface plasmon resonance of the nanoparticles. But it has been argued that there is an associated photothermal effect ... ...

    Abstract Several chemical reactions catalyzed by plasmonic nanoparticles show enhanced rates under visible-light-excitation of the localized surface plasmon resonance of the nanoparticles. But it has been argued that there is an associated photothermal effect that can complicate the analysis and/or interpretation of the nature of the role played by plasmon excitation. This Viewpoint discusses this dilemma and provides some best practices for accounting for photothermal contributions in plasmon-excitation-driven chemistry. A classification of plasmonic chemistry into plasmonic photocatalysis and plasmonic photosynthesis is also proposed. It is argued that photosynthetic reactions, which require a Gibb's free energy input, constitute an ultimate test of the non-thermal, photochemical action of plasmon excitation.

    Comment: 12 pages, no figures, Viewpoint
    Keywords Physics - Chemical Physics ; Condensed Matter - Materials Science
    Publishing date 2019-08-25
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Book ; Online: Phenomenological Arrhenius Analyses in Plasmon-Enhanced Catalysis

    Jain, Prashant K.

    2019  

    Abstract: A range of chemical reactions occurring on the surfaces of metal nanoparticles exhibit enhanced rates under plasmonic excitation. Recent analyses based on Arrhenius law fitting have argued in favor of a purely photothermal mechanism of enhancement and ... ...

    Abstract A range of chemical reactions occurring on the surfaces of metal nanoparticles exhibit enhanced rates under plasmonic excitation. Recent analyses based on Arrhenius law fitting have argued in favor of a purely photothermal mechanism of enhancement and suggested the lack of an involvement of hot electrons. However, there is a caveat as shown here: under certain scenarios, it is practically impossible to distinguish between a photochemical (non-thermal) effect of plasmonic excitation and a purely photothermal one using a phenomenological Arrhenius fitting of the reaction rates alone.

    Comment: 4 pages, 1 figure, technical comment
    Keywords Physics - Chemical Physics ; Condensed Matter - Materials Science
    Publishing date 2019-08-14
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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