G
G. Wiegand
Researcher at Karlsruhe Institute of Technology
Publications - 27
Citations - 413
G. Wiegand is an academic researcher from Karlsruhe Institute of Technology. The author has contributed to research in topics: Supercritical fluid & Supercritical carbon dioxide. The author has an hindex of 11, co-authored 26 publications receiving 358 citations. Previous affiliations of G. Wiegand include ETH Zurich.
Papers
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Journal ArticleDOI
Interfacial tension between water and non-polar fluids up to 473 K and 2800 bar
G. Wiegand,E. U. Franck +1 more
TL;DR: In this paper, the Pendant Drop or standing bubble is applied to measure interfacial tension between water and nonpolar fluids to high temperatures and pressures, and a high pressure cell with two sapphire windows and auxiliary equipment with several feed autoclaves is described.
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Bio-inspired, large scale, highly-scattering films for nanoparticle-alternative white surfaces.
Julia Syurik,Radwanul Hasan Siddique,Antje Dollmann,Guillaume Gomard,Marc Schneider,Matthias Worgull,G. Wiegand,Hendrik Hölscher +7 more
TL;DR: Inspired by the white beetle of the genus Cyphochilus, ultra-thin, porous PMMA films are fabricated by foaming with CO2 saturation with results in very thin films with exceptional whiteness.
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Enhanced Photoluminescence in Quantum Dots–Porous Polymer Hybrid Films Fabricated by Microcellular Foaming
Yu Shudong,Yu Shudong,Benjamin Fritz,S. Johnsen,Dmitry Busko,Bryce S. Richards,Marc Hippler,G. Wiegand,Yong Tang,Zongtao Li,Uli Lemmer,Hendrik Hölscher,Guillaume Gomard +12 more
TL;DR: In this paper, a tailored network of micropores inside these hybrid films is introduced to tackle these optical shortcomings by exploiting the microcellular foaming approach which is rapid, cost effective and only makes use of a green solvent (supercritical carbon dioxide).
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Small-Scale CO2 Injection into a Deep Geological Formation at Heletz, Israel
Auli Niemi,Jacob Bensabat,Fritjof Fagerlund,Martin Sauter,Julia Ghergut,Tobias Licha,Thomas Fierz,G. Wiegand,Maria Rasmusson,Kristina Rasmusson,Vladimir Shtivelman,Michael Gendler +11 more
TL;DR: In this paper, the authors present the experimental plans and designs as well as examples of predictive modeling of a pilot-scale CO2 injection experiment at the Heletz site (Israel), where the overall objective is to find optimal ways to characterize CO2 -relevant in-situ medium properties, including field-scale residual and dissolution trapping, to explore ways of characterizing heterogeneity through joint analysis of different types of data, and to detect leakage.
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The viscosity of n-decane to high temperatures of 573 K and high pressures of 300 MPa
TL;DR: In this article, the dynamic viscosity of liquid n-decane has been measured with the oscillating disk method from 293 K to 573 K and from 0.1 MPa to 300 MPa.