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  1. Artikel ; Online: Generalizable Synthesis of Highly Fluorinated Ionic Liquids.

    Wenny, Malia B / Walter, Miranda V / Slavney, Adam H / Mason, Jarad A

    The journal of physical chemistry. B

    2023  Band 127, Heft 9, Seite(n) 2028–2033

    Abstract: The unique chemistry of fluorocarbons (in particular, their weak intermolecular interactions and high degree of intrinsic free volume) makes them promising building blocks for ionic liquids with high gas capacities. Here, we report a generalizable method ...

    Abstract The unique chemistry of fluorocarbons (in particular, their weak intermolecular interactions and high degree of intrinsic free volume) makes them promising building blocks for ionic liquids with high gas capacities. Here, we report a generalizable method for the synthesis of fluorinated ionic liquids, which relies on the evolution of gaseous byproducts to drive product formation. This synthetic strategy overcomes solubility challenges that can hinder the synthesis of highly fluorinated ionic liquids via conventional methods and enables a systematic investigation of the effect of fluorination on ionic liquid viscosity and gas solubility.
    Sprache Englisch
    Erscheinungsdatum 2023-02-23
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 1520-5207
    ISSN (online) 1520-5207
    DOI 10.1021/acs.jpcb.2c08374
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: Halide Perovskites Breathe Too: The Iodide-Iodine Equilibrium and Self-Doping in Cs

    Vigil, Julian A / Wolf, Nathan R / Slavney, Adam H / Matheu, Roc / Saldivar Valdes, Abraham / Breidenbach, Aaron / Lee, Young S / Karunadasa, Hemamala I

    ACS central science

    2024  Band 10, Heft 4, Seite(n) 907–919

    Abstract: The response of an oxide crystal to the atmosphere can be personified as breathing-a dynamic equilibrium between ... ...

    Abstract The response of an oxide crystal to the atmosphere can be personified as breathing-a dynamic equilibrium between O
    Sprache Englisch
    Erscheinungsdatum 2024-04-02
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ISSN 2374-7943
    ISSN 2374-7943
    DOI 10.1021/acscentsci.4c00056
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel: Understanding the evolution of double perovskite band structure upon dimensional reduction.

    Connor, Bridget A / Su, Alexander C / Slavney, Adam H / Leppert, Linn / Karunadasa, Hemamala I

    Chemical science

    2023  Band 14, Heft 42, Seite(n) 11858–11871

    Abstract: Recent investigations into the effects of dimensional reduction on halide double perovskites have revealed an intriguing change in band structure when the three-dimensional (3D) perovskite is reduced to a two-dimensional (2D) perovskite with inorganic ... ...

    Abstract Recent investigations into the effects of dimensional reduction on halide double perovskites have revealed an intriguing change in band structure when the three-dimensional (3D) perovskite is reduced to a two-dimensional (2D) perovskite with inorganic sheets of monolayer thickness (
    Sprache Englisch
    Erscheinungsdatum 2023-09-14
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d3sc03105e
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Doubling the Stakes: The Promise of Halide Double Perovskites.

    Wolf, Nathan R / Connor, Bridget A / Slavney, Adam H / Karunadasa, Hemamala I

    Angewandte Chemie (International ed. in English)

    2021  Band 60, Heft 30, Seite(n) 16264–16278

    Abstract: When the stakes are doubled in a wager, a player must correctly place two consecutive bets to win, but the payout is larger. Similarly, two B sites in combination dictate the properties of ... ...

    Abstract When the stakes are doubled in a wager, a player must correctly place two consecutive bets to win, but the payout is larger. Similarly, two B sites in combination dictate the properties of A
    Mesh-Begriff(e) Alloys/chemistry ; Calcium Compounds/chemistry ; Coordination Complexes/chemistry ; Dimerization ; Ferrocyanides/chemistry ; Molecular Structure ; Oxides/chemistry ; Structure-Activity Relationship ; Thermodynamics ; Titanium/chemistry ; Transition Elements/chemistry
    Chemische Substanzen Alloys ; Calcium Compounds ; Coordination Complexes ; Ferrocyanides ; Oxides ; Transition Elements ; perovskite (12194-71-7) ; Titanium (D1JT611TNE) ; ferric ferrocyanide (TLE294X33A)
    Sprache Englisch
    Erscheinungsdatum 2021-03-26
    Erscheinungsland Germany
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202016185
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Tuning Defects in a Halide Double Perovskite with Pressure.

    Wolf, Nathan R / Jaffe, Adam / Slavney, Adam H / Mao, Wendy L / Leppert, Linn / Karunadasa, Hemamala I

    Journal of the American Chemical Society

    2022  Band 144, Heft 45, Seite(n) 20763–20772

    Abstract: Dopant defects in semiconductors can trap charge carriers or ionize to produce charge carriers─playing a critical role in electronic transport. Halide perovskites are a technologically important semiconductor family with a large pressure response. Yet, ... ...

    Abstract Dopant defects in semiconductors can trap charge carriers or ionize to produce charge carriers─playing a critical role in electronic transport. Halide perovskites are a technologically important semiconductor family with a large pressure response. Yet, to our knowledge, the effect of high pressures on defects in halide perovskites has not been experimentally investigated. Here, we study the structural, optical, and electronic consequences of compressing the small-bandgap double perovskites Cs
    Sprache Englisch
    Erscheinungsdatum 2022-11-07
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c08607
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel: Liquid and Glass Phases of an Alkylguanidinium Sulfonate Hydrogen-Bonded Organic Framework

    Slavney, Adam H. / Kim, Hong Ki / Tao, Songsheng / Liu, Mengtan / Billinge, Simon J. L. / Mason, Jarad A.

    Journal of the American Chemical Society. 2022 June 14, v. 144, no. 25

    2022  

    Abstract: Glassy phases of framework materials feature unique and tunable properties that are advantageous for gas separation membranes, solid electrolytes, and phase-change memory applications. Here, we report a new guanidinium organosulfonate hydrogen-bonded ... ...

    Abstract Glassy phases of framework materials feature unique and tunable properties that are advantageous for gas separation membranes, solid electrolytes, and phase-change memory applications. Here, we report a new guanidinium organosulfonate hydrogen-bonded organic framework (HOF) that melts and vitrifies below 100 °C. In this low-temperature regime, non-covalent interactions between guest molecules and the porous framework become a dominant contributor to the overall stability of the structure, resulting in guest-dependent melting, glass, and recrystallization transitions. Through simulations and X-ray scattering, we show that the local structures of the amorphous liquid and glass phases resemble those of the parent crystalline framework.
    Schlagwörter X-radiation ; crystallization ; glass ; guanidinium ; hydrogen bonding ; liquids ; memory ; sulfonates
    Sprache Englisch
    Erscheinungsverlauf 2022-0614
    Umfang p. 11064-11068.
    Erscheinungsort American Chemical Society
    Dokumenttyp Artikel
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c02918
    Datenquelle NAL Katalog (AGRICOLA)

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  7. Artikel: Understanding Relationships between Free Volume and Oxygen Absorption in Ionic Liquids

    Wenny, Malia B. / Molinari, Nicola / Slavney, Adam H. / Thapa, Surendra / Lee, Byeongdu / Kozinsky, Boris / Mason, Jarad A.

    Journal of physical chemistry. 2022 Feb. 03, v. 126, no. 6

    2022  

    Abstract: Understanding the factors that govern gas absorption in ionic liquids is critical to the development of high-capacity solvents for catalysis, electrochemistry, and gas separations. Here, we report experimental probes of liquid structure that provide ... ...

    Abstract Understanding the factors that govern gas absorption in ionic liquids is critical to the development of high-capacity solvents for catalysis, electrochemistry, and gas separations. Here, we report experimental probes of liquid structure that provide insights into how free volume impacts the O₂ absorption properties of ionic liquids. Specifically, we establish that isothermal compressibility─measured rapidly and accurately through small-angle X-ray scattering─reports on the size distribution of transient voids within a representative series of ionic liquids and is correlated with O₂ absorption capacity. Additionally, O₂ absorption capacities are correlated with thermal expansion coefficients, reflecting the beneficial effect of weak intermolecular interactions in ionic liquids on free volume and gas absorption capacity. Molecular dynamics simulations show that the void size distribution─in particular, the probability of forming larger voids within an ionic liquid─has a greater impact on O₂ absorption than the total free volume. These results establish relationships between the ionic liquid structure and gas absorption properties that offer design strategies for ionic liquids with high gas solubilities.
    Schlagwörter absorption ; catalytic activity ; electrochemistry ; ionic liquids ; liquids ; molecular dynamics ; oxygen ; probability ; small-angle X-ray scattering ; thermal expansion
    Sprache Englisch
    Erscheinungsverlauf 2022-0203
    Umfang p. 1268-1274.
    Erscheinungsort American Chemical Society
    Dokumenttyp Artikel
    ISSN 1520-5207
    DOI 10.1021/acs.jpcb.2c00202
    Datenquelle NAL Katalog (AGRICOLA)

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  8. Artikel ; Online: Liquid and Glass Phases of an Alkylguanidinium Sulfonate Hydrogen-Bonded Organic Framework.

    Slavney, Adam H / Kim, Hong Ki / Tao, Songsheng / Liu, Mengtan / Billinge, Simon J L / Mason, Jarad A

    Journal of the American Chemical Society

    2022  Band 144, Heft 25, Seite(n) 11064–11068

    Abstract: Glassy phases of framework materials feature unique and tunable properties that are advantageous for gas separation membranes, solid electrolytes, and phase-change memory applications. Here, we report a new guanidinium organosulfonate hydrogen-bonded ... ...

    Abstract Glassy phases of framework materials feature unique and tunable properties that are advantageous for gas separation membranes, solid electrolytes, and phase-change memory applications. Here, we report a new guanidinium organosulfonate hydrogen-bonded organic framework (HOF) that melts and vitrifies below 100 °C. In this low-temperature regime, non-covalent interactions between guest molecules and the porous framework become a dominant contributor to the overall stability of the structure, resulting in guest-dependent melting, glass, and recrystallization transitions. Through simulations and X-ray scattering, we show that the local structures of the amorphous liquid and glass phases resemble those of the parent crystalline framework.
    Sprache Englisch
    Erscheinungsdatum 2022-06-14
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.2c02918
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Colossal barocaloric effects with ultralow hysteresis in two-dimensional metal-halide perovskites.

    Seo, Jinyoung / McGillicuddy, Ryan D / Slavney, Adam H / Zhang, Selena / Ukani, Rahil / Yakovenko, Andrey A / Zheng, Shao-Liang / Mason, Jarad A

    Nature communications

    2022  Band 13, Heft 1, Seite(n) 2536

    Abstract: Pressure-induced thermal changes in solids-barocaloric effects-can be used to drive cooling cycles that offer a promising alternative to traditional vapor-compression technologies. Efficient barocaloric cooling requires materials that undergo reversible ... ...

    Abstract Pressure-induced thermal changes in solids-barocaloric effects-can be used to drive cooling cycles that offer a promising alternative to traditional vapor-compression technologies. Efficient barocaloric cooling requires materials that undergo reversible phase transitions with large entropy changes, high sensitivity to hydrostatic pressure, and minimal hysteresis, the combination of which has been challenging to achieve in existing barocaloric materials. Here, we report a new mechanism for achieving colossal barocaloric effects that leverages the large volume and conformational entropy changes of hydrocarbon order-disorder transitions within the organic bilayers of select two-dimensional metal-halide perovskites. Significantly, we show how the confined nature of these order-disorder phase transitions and the synthetic tunability of layered perovskites can be leveraged to reduce phase transition hysteresis through careful control over the inorganic-organic interface. The combination of ultralow hysteresis and high pressure sensitivity leads to colossal reversible isothermal entropy changes (>200 J kg
    Sprache Englisch
    Erscheinungsdatum 2022-05-09
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-022-29800-9
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Understanding Relationships between Free Volume and Oxygen Absorption in Ionic Liquids.

    Wenny, Malia B / Molinari, Nicola / Slavney, Adam H / Thapa, Surendra / Lee, Byeongdu / Kozinsky, Boris / Mason, Jarad A

    The journal of physical chemistry. B

    2022  Band 126, Heft 6, Seite(n) 1268–1274

    Abstract: Understanding the factors that govern gas absorption in ionic liquids is critical to the development of high-capacity solvents for catalysis, electrochemistry, and gas separations. Here, we report experimental probes of liquid structure that provide ... ...

    Abstract Understanding the factors that govern gas absorption in ionic liquids is critical to the development of high-capacity solvents for catalysis, electrochemistry, and gas separations. Here, we report experimental probes of liquid structure that provide insights into how free volume impacts the O
    Mesh-Begriff(e) Ionic Liquids/chemistry ; Molecular Dynamics Simulation ; Oxygen ; Solubility ; Solvents/chemistry
    Chemische Substanzen Ionic Liquids ; Solvents ; Oxygen (S88TT14065)
    Sprache Englisch
    Erscheinungsdatum 2022-02-03
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 1520-5207
    ISSN (online) 1520-5207
    DOI 10.1021/acs.jpcb.2c00202
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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