TY  - JOUR
A1  - Delahaye, Emilie
A1  - Goebel, Ronald
A1  - Loebbicke, Ruben
A1  - Guillot, Regis
A1  - Sieber, Christoph
A1  - Taubert, Andreas
T1  - Silica ionogels for proton transport
JF  - Journal of materials chemistry
N2  - A number of ionogels - silica-ionic liquid (IL) hybrid materials - were synthesized and studied for their ionic conductivity. The materials are based on a sulfonated IL, 1-methyl-3-(3-sulfopropyl-)-imidazolium p-toluenesulfonate, [PmimSO(3)H][PTS], which contains a sulfonic acid/sulfonate group both in the IL anion and in the side chain of the IL cation. By way of the sulfonate-sulfonic acid proton transfer, the IL imparts the ionogel with a high ionic conductivity of ca. 10(-2) S cm(-1) in the as-synthesized state at 120 degrees C and 10(-3) S cm(-1) in the dry state at 120 degrees C. The ionogels are stable up to ca. 150 degrees C in dynamic thermogravimetric analysis. This suggests that these materials, which are relatively cheap and easily fabricated, could find application in fuel cells in intermediate temperature ranges where many other membrane materials are not suitable.
Y1  - 2012
U6  - https://doi.org/10.1039/c2jm00037g
SN  - 0959-9428
VL  - 22
IS  - 33
SP  - 17140
EP  - 17146
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Goebel, Ronald
A1  - Xie, Zai-Lai
A1  - Neumann, Mike
A1  - Günter, Christina
A1  - Loebbicke, Ruben
A1  - Kubo, Shiori
A1  - Titirici, Maria-Magdalena
A1  - Giordano, Cristina
A1  - Taubert, Andreas
T1  - Synthesis of mesoporous carbon/iron carbide hybrids with unusually high surface areas from the ionic liquid precursor [Bmim][FeCl4]
JF  - CrystEngComm
N2  - Mesoporous carbon/iron carbide hybrid materials with surface areas reaching 800 m(2) g(-1) were synthesized via an exotemplating route using monolithic mesoporous silica as template and the ionic liquid 1-butyl-3-methylimidazolium tetrachloridoferrate(III) [Bmim][FeCl4] as carbon and iron source. After heat treatment (750 degrees C under argon) of the [Bmim][FeCl4] precursor confined within the silica matrix, the silica exotemplate was removed with HF leaving the mesoporous C/Fe3C hybrid behind. The surface areas and the pore sizes depend on the exotemplate and the surface areas a significantly larger than any other surface area reported for C/Fe3C hybrid materials so far. The approach is thus a prototype for the synthesis of high-surface area iron carbide-based hybrid materials with potential application in catalysis.
Y1  - 2012
U6  - https://doi.org/10.1039/c2ce25064k
SN  - 1466-8033
VL  - 14
IS  - 15
SP  - 4946
EP  - 4951
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  -