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2022-07-01
12:57
[FZJ-2022-02609] Journal Article
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Surface-to-space atmospheric waves from Hunga Tonga-Hunga Ha’apai eruption
The January 2022 Hunga Tonga–Hunga Haʻapai eruption was one of the most explosive volcanic events of the modern era, producing a vertical plume which peaked > 50 km above the Earth. The initial explosion and subsequent plume triggered atmospheric waves which propagated around the world multiple times. [...]
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2022-06-29
09:00

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2022-06-27
14:56
[FZJ-2022-02544] Journal Article
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A highly stable bimetallic transition metal phosphide catalyst for selective dehydrogenation of n‐heptane
ChemCatChem XXX, cctc.202200371 () [10.1002/cctc.202200371]
In this work, we demonstrate RuP2-MoP catalystsbeing highly stable and selective for the dehydrogenation of longchainalkanes like n-heptane. Compared to a monometallic MoPcatalyst, the bimetallic system substantially increases n-hepteneselectivity from 40% towards 80%. [...]
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2022-06-23
16:17

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2022-06-23
13:00

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2022-06-23
12:05
[FZJ-2022-02488] Journal Article
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Negative sulfur-based electrodes and their application in battery cells: Dual-ion batteries as an example
In this work, a cell concept comprising of an anion intercalating graphite-based positive electrode (cathode) and an elemental sulfur-based negative electrode (anode) is presented as a transition metal- and in a specific concept even Li-free cell setup using a Li-ion containing electrolyte or a Mg-ion containing electrolyte. The cell achieves discharge capacities of up to 37 mAh g−1 and average discharge cell voltages of up to 1.9 V [...]
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2022-06-23
11:08
[FZJ-2022-02487] Journal Article
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Energetics of Technical Integration of 2‐Propanol Fuel Cells: Thermodynamic and Current and Future Technical Feasibility
Energy technology XXX, 2200343 - () [10.1002/ente.202200343]
2-Propanol/acetone is a promising liquid organic hydrogen carrier system for fuelcell reactions. Herein, six different concepts for a 2-propanol/acetone fuel cellsystem are evaluated in MATLAB simulation with respect to their thermodynamicintegration and technical feasibility. [...]

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2022-06-15
08:03
[FZJ-2022-02386] Journal Article
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Active solution heating and cooling in electrospinning enabling spinnability from various solvents
Solution electrospinning is a facile method for the production of nanofibrous meshes. Here, we present a syringe-jacket heat exchanger as a simple add-on for solution electrospinning, which enables spinning from various solvents by a direct and precise solution temperature control between -20 °C and 100 °C. [...]
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2022-06-13
10:47
[FZJ-2022-02367] Journal Article
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Correlating Structural Disorder to $Li^+$ Ion Transport in $Li_{4–x}Ge_{1–x}Sb_xS_4$ (0 ≤ x ≤ 0.2)
Chemistry of materials XX, acs.chemmater.2c00608 () [10.1021/acs.chemmater.2c00608]
Strong compositional influences are known to affect the ionic transport within the thio-LISICON family, however, a deeper understanding of the resulting structure - transport correlations have up until now been lacking. Employing a combination of high-resolution neutron diffraction, impedance spectroscopy and nuclear magnetic resonance spectroscopy, together with bond valence site energy calculations and the maximum entropy method for determining the underlying Li+ scattering density distribution of a crystal structure, this work assesses the impact of the Li+ substructure and charge carrier density on the ionic transport within the Li4-xGe1-xSbxS4 substitution series. [...]
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2022-06-10
09:44

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