Tootfinder

Cost-optimized replacement strategies for water electrolysis systems affected by degradation
Marie Arnold, Jonathan Brandt, Geert Tjarks, Anna Vanselow, Richard Hanke-Rauschenbach
https://arxiv.org/abs/2508.16370

Cost-optimized replacement strategies for water electrolysis systems affected by degradation
A key factor in reducing the cost of green hydrogen production projects using water electrolysis systems is to minimize the degradation of the electrolyzer stacks, as this impacts the lifetime of the stacks and therefore the frequency of their replacement. To create a better understanding of the economics of stack degradation, we present a linear optimization approach minimizing the costs of a green hydrogen supply chain including an electrolyzer with degradation modeling. By calculating the le…

In situ growth of a type-II ZnO/ZnS heterostructure:From stability to band-offset
P. R. A de Oliveira, I. Coelho, G. Felix, P. Venezuela, F. Stavale
https://arxiv.org/abs/2506.14499

In situ growth of a type-II ZnO/ZnS heterostructure:From stability to band-offset
We have successfully obtained a ZnO/ZnS heterostructure by heating a ZnS(001) single crystal in a controlled impurities-free oxygen atmosphere. Combining X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM), we explore the stability, electronic structure, and morphology of that interface. Our XPS measurements reveal a binding energy shift of the core-level peaks, indicating a band-bending effect due to the formation of a hybrid ZnO/ZnS interface. In addition, AFM measuremen…

Feds say Smartmatic bribed Venezuela's top election official with luxury home (Antonio María Delgado/Miami Herald)
https://www.miamiherald.com/news/nation-world/world/americas/venezuela/article311579664.html
http://www.memeorandum.com/250804/p130#a250804p130

Crosslisted article(s) found for econ.GN. https://arxiv.org/list/econ.GN/new
[1/1]:
- Cost-optimized replacement strategies for water electrolysis systems affected by degradation
Marie Arnold, Jonathan Brandt, Geert Tjarks, Anna Vanselow, Richard Hanke-Rauschenbach

Electrically reconfigurable nonvolatile flatband absorbers in the mid-infrared with wide spectral tuning range
Romil Audhkhasi, Virat Tara, Matthew Klein, Andrew Tang, Rui Chen, Shivashankar Vangala, Joshua R. Hendrickson, Arka Majumdar
https://arxiv.org/abs/2506.07258

Electrically reconfigurable nonvolatile flatband absorbers in the mid-infrared with wide spectral tuning range
While recent advances in reconfigurable photonics have provided new avenues for manipulating light on the subwavelength scale, on-demand control of infrared absorption remains elusive. Here, we experimentally demonstrate a plasmonic metasurface based on the phase change material Ge2Sb2Te5 with in-situ electrically-switchable infrared absorption in the 3-5 microns wavelength range. Unlike traditional infrared microstructures based on volatile phase change materials, our device does not require t…