Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation

Autor: Maximilian Hovestadt, Sebastian Friebe, Lailah Helmich, Marcus Lange, Jens Möllmer, Roger Gläser, Alexander Mundstock, Martin Hartmann

Publikováno v: Molecules, Vol 23, Iss 4, p 889 (2018)

In this study, two zeolitic imidazolate frameworks (ZIFs) called ZIF-4 and ZIF-zni (zni is the network topology) were characterized by sorption studies regarding their paraffin/olefin separation potential. In particular, equilibrated pure and mixed g

Externí odkaz: https://doaj.org/article/7308a7d5edd94783a73e2eb47db5689b

Direct Examination of the Deactivation of the Boron–Oxygen Center in Cz-Si Solar Cells Under Regeneration Conditions via Electroluminescence

Autor: Lailah Helmich, Dominic C. Walter, Jan Schmidt

Publikováno v: IEEE Journal of Photovoltaics. 9:1472-1476

We examine the regeneration kinetics of the boron–oxygen defect in boron-doped p -type Czochralski-grown silicon (Cz-Si) solar cells as a function of the excess carrier concentration Δ n at the regeneration conditions, i.e., at elevated temperatur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a93450adea5052dc36060281f04c35e0
https://doi.org/10.1109/jphotov.2019.2926855

Impact of hydrogen on the boron-oxygen-related lifetime degradation and regeneration kinetics in crystalline silicon

Autor: Dominic C. Walter, Jan Schmidt, Lailah Helmich, Vladimir V. Voronkov, Robert J. Falster

Publikováno v: Solar Energy Materials and Solar Cells. 232:111340

We examine the impact of hydrogen on the boron-oxygen-related lifetime degradation and regeneration kinetics in boron-doped p-type Czochralski-grown silicon wafers. We introduce the hydrogen into the silicon bulk by rapid thermal annealing. The hydro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::838d346470a835f196e722edaa24e521
https://doi.org/10.1016/j.solmat.2021.111340

Enhanced Flexible Thermoelectric Generators Based on Oxide–Metal Composite Materials

Autor: Michael Bittner, Artur Brittner, Armin Feldhoff, Lailah Helmich, Benjamin Geppert

Publikováno v: Journal of Electronic Materials. 46:2356-2365

The thermoelectric performance of flexible thermoelectric generator stripes was investigated in terms of different material combinations. The thermoelectric generators were constructed using Cu-Ni-Mn alloy as n-type legs while varying the p-type leg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::94e8a0c8b2c3d4c3710983d1d6f12c2a
https://doi.org/10.1007/s11664-017-5281-7

Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation

Autor: Lailah Helmich, Alexander Mundstock, Sebastian Friebe, Martin Hartmann, Roger Gläser, Jens Möllmer, Maximilian Hovestadt, Marcus Lange

Publikováno v: Molecules 23 (2018), Nr. 4
Molecules; Volume 23; Issue 4; Pages: 889
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry
Molecules, Vol 23, Iss 4, p 889 (2018)

In this study, two zeolitic imidazolate frameworks (ZIFs) called ZIF-4 and ZIF-zni (zni is the network topology) were characterized by sorption studies regarding their paraffin/olefin separation potential. In particular, equilibrated pure and mixed g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65f3404acc47aec949737d1b7ab9c54b
https://doi.org/10.3390/molecules23040889