Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Guenther J. Redhammer"'
Autor:
Radek Škoda, Lutz Nasdala, Manfred Wildner, Guenther J. Redhammer, Agnes Blanka Kruzslicz, Bhuwadol Wanthanachaisaeng, Christoph Hauzenberger
Publikováno v:
The Journal of Gemmology. 37:66-79
Das Edelsteinabbaugebiet Bo Phloi befindet sich in der Provinz Kanchanaburi im Westen Thailands, etwa 30 km nordlich der Stadt Kanchanaburi. Die Gegend war beruhmt fur ihre blauen Saphirkristalle in Edelsteinqualitat. Da die Produktion von Korund inz
Autor:
Giordano Montegrossi, Francesco Di Benedetto, Andrea Griesi, Gerold Tippelt, Guenther J. Redhammer, Giovanni Orazio Lepore, Maurizio Romanelli, Stefano Martinuzzi, Alessandro Lavacchi, Andrea Caneschi, Andrea Giaccherini, Giuseppe Cucinotta, Georg Amthauer, Matteo Mannini
Publikováno v:
'Journal of Geosciences ', vol: 65, pages: 3-14 (2020)
In the field of the renewables, a large effort has been devoted in the last years to obtain conventional and new materials for solar energy conversion by using methods which couple a good efficiency and scalability with energetic and environmental co
Publikováno v:
ACS Applied Materials & Interfaces. 11:39859-39874
A sequence of chemical vapor synthesis and thermal annealing in defined gas atmospheres was used to prepare phase-pure anatase TiO2 nanocrystal powders featuring clean surfaces and a narrow particl...
Autor:
Giancarlo Della Ventura, Roberta Oberti, Guenther J. Redhammer, Umberto Susta, Augusto Marcelli, Fabio Bellatreccia
Publikováno v:
The American mineralogist 102 (2017): 117–125. doi:10.2138/am-2017-5859
info:cnr-pdr/source/autori:Giancarlo Della Ventura1,2,*, Umberto Susta1, Fabio Bellatreccia1,2, Augusto Marcelli2, Günther J. Redhammer3, and Roberta Oberti/titolo:Deprotonation of Fe-dominant amphiboles: Single-crystal HT-FTIR spectroscopic studies of synthetic potassic-ferro-richterite/doi:10.2138%2Fam-2017-5859/rivista:The American mineralogist/anno:2017/pagina_da:117/pagina_a:125/intervallo_pagine:117–125/volume:102
info:cnr-pdr/source/autori:Giancarlo Della Ventura1,2,*, Umberto Susta1, Fabio Bellatreccia1,2, Augusto Marcelli2, Günther J. Redhammer3, and Roberta Oberti/titolo:Deprotonation of Fe-dominant amphiboles: Single-crystal HT-FTIR spectroscopic studies of synthetic potassic-ferro-richterite/doi:10.2138%2Fam-2017-5859/rivista:The American mineralogist/anno:2017/pagina_da:117/pagina_a:125/intervallo_pagine:117–125/volume:102
High-temperature Fourier transform infrared (HT-FTIR) spectroscopy was used to characterize the deprotonation process of synthetic potassic-ferro-richterite of composition A ( K 0 . 90 Na 0 . 07 ) B ( Ca 0 . 54 Na 1 . 46 ) C ( Fe 4 . 22 2 + Fe 0 . 78
Autor:
Rainer T. Lechner, Cigdem Yumusak, Halime Coskun, Gundula Voss, Nicola Demitri, Gian Paolo Suranna, Nevsal Sunger, Guenther J. Redhammer, Serdar N. Sariciftci, Uwe Monkowius, Max Burian, Eric Daniel Głowacki, Giuseppe Romanazzi
Publikováno v:
Advanced functional materials
25 (2015): 776–787. doi:10.1002/adfm.201402539
info:cnr-pdr/source/autori:Glowacki, Eric Daniel; Romanazzi, Giuseppe; Yumusak, Cigdem; Coskun, Halime; Monkowius, Uwe; Voss, Gundula; Burian, Max; Lechner, Rainer T.; Demitri, Nicola; Redhammer, Günther J.; Sünger, Nevsal; Suranna, Gian Paolo; Sariciftci, Serdar/titolo:Epindolidiones-versatile and stable hydrogen-bonded pigments for organic field-effect transistors and light-emitting diodes/doi:10.1002%2Fadfm.201402539/rivista:Advanced functional materials (Print)/anno:2015/pagina_da:776/pagina_a:787/intervallo_pagine:776–787/volume:25
25 (2015): 776–787. doi:10.1002/adfm.201402539
info:cnr-pdr/source/autori:Glowacki, Eric Daniel; Romanazzi, Giuseppe; Yumusak, Cigdem; Coskun, Halime; Monkowius, Uwe; Voss, Gundula; Burian, Max; Lechner, Rainer T.; Demitri, Nicola; Redhammer, Günther J.; Sünger, Nevsal; Suranna, Gian Paolo; Sariciftci, Serdar/titolo:Epindolidiones-versatile and stable hydrogen-bonded pigments for organic field-effect transistors and light-emitting diodes/doi:10.1002%2Fadfm.201402539/rivista:Advanced functional materials (Print)/anno:2015/pagina_da:776/pagina_a:787/intervallo_pagine:776–787/volume:25
Hydrogen-bonded pigments are remarkably stable high-crystal lattice energy organic solids. Here a lesser-known family of compounds, the epindolidiones, which demonstrates electronic transport with extraordinary stability, even in highly demanding aqu
Autor:
Guenther J. Redhammer, Andrew G. Christy, Stuart J. Mills, Fabrizio Nestola, Clivia Hejny, Volker Kahlenberg
Publikováno v:
American Mineralogist. 98:1966-1971
Single-crystal diffraction of jarosite, KFe 3 3+ (SO 4 ) 2 (OH) 6 , has been undertaken at low temperatures that proxy for martian surface conditions. Room-temperature data are consistent with literature data [ a = 7.2913(5), c = 17.1744(17), and V =
Autor:
Guenther J. Redhammer, R.G. Berman, Jean-Louis Robert, Denis G. Rancourt, Patrick H. J. Mercier
Publikováno v:
American Mineralogist. 90:399-410
Based on powder X-ray diffraction (pXRD) measurements of many mica solid solution series of synthetic powder samples (between Mg, Co, Ni, and Fe end-members, with different degrees of oxidation, vacancy, and Al/Si contents, and including an OH/F subs
Autor:
Edward S. Grew, Guenther J. Redhammer, Karl Schmetzer, Georg Amthauer, Mark A. Cooper, Frank C. Hawthorne
Publikováno v:
American Mineralogist. 84:536-549
Iron is an important constituent of kornerupine, ([]Mg,Fe) (Al,Mg,Fe) 9 (Si,Al,B) 5 O 21 (OH,F). We obtained Mossbauer spectra at 300 K on twelve samples with Sigma Fe = 0.30-1.30 atoms per formula unit (apfu) and Fe (super 3+) /Sigma Fe = 0-0.31; se
Publikováno v:
American Mineralogist. 84:493-505
ZrO2-EMF measurements were carried out on natural biotite samples between about 400 and 1100 8C in a closed system in a pure argon atmosphere (99.9999%). The EMF patterns are complex and cannot be compared to classical equilibrium 1/T-log ƒ data. In
Autor:
Guenther J. Redhammer
Publikováno v:
European Journal of Mineralogy. 10:439-452