Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Developments in Strategic Ceramic Materials - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites |
| Herausgeber/-innen | Dongming Zhu, Thomas Fischer, Jingyang Wang, Waltraud M. Kriven |
| Herausgeber (Verlag) | American Ceramic Society |
| Seiten | 21-35 |
| Seitenumfang | 15 |
| Auflage | 8 |
| ISBN (Print) | 9781119040439 |
| Publikationsstatus | Veröffentlicht - 28 Dez. 2015 |
| Veranstaltung | Developments in Strategic Ceramic Materials - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015 - Daytona Beach, USA / Vereinigte Staaten Dauer: 25 Jan. 2015 → 30 Jan. 2015 |
Publikationsreihe
| Name | Ceramic Engineering and Science Proceedings |
|---|---|
| Nummer | 8 |
| Band | 36 |
| ISSN (Print) | 0196-6219 |
Abstract
Ammonia-borane, NH3BH3 can easily be dissolved in sodium aluminate and silicate solutions. Brought together reveal immediate gel formation. After successive drying (80°C) X-ray diffraction pattern and IR absorption spectra showed a re-crystallization of NH3BH3 and the formation of a geopolymer. SEM/EDX analyses indicate that a new NH3BH3-geopolymer (AB-G) composite material formed. The geopolymer part consists of mainly sialate units similar to those obtained for NaBH4-geopolymer composites [1]. Acid catalyzed hydrogen release reveals boric acid and NH4Cl for AB and AB-G in the filtrate. For AB-G the geopolymer part has transformed to silica gel extracting Al3+ in the solution. The AB-G shows enhanced stability in neutral and weak basic solution compared to AB. TG/DTA experiments reveal a total weight loss of 11.8 % for AB-G in two main exothermic steps at around 120°C and 155°C when heated to 300°C. IR absorption spectra indicate transformations to PIB (polyiminoboranes) taken from samples cooled from 300°C.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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Developments in Strategic Ceramic Materials - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites. Hrsg. / Dongming Zhu; Thomas Fischer; Jingyang Wang; Waltraud M. Kriven. 8. Aufl. American Ceramic Society, 2015. S. 21-35 (Ceramic Engineering and Science Proceedings; Band 36, Nr. 8).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Ammonia-borane geopolymer (AB-G) composite
AU - Schomborg, Lars
AU - Assi, Zeina
AU - Buhl, J. Christian
AU - Rüscher, Claus H.
AU - Wark, Michael
PY - 2015/12/28
Y1 - 2015/12/28
N2 - Ammonia-borane, NH3BH3 can easily be dissolved in sodium aluminate and silicate solutions. Brought together reveal immediate gel formation. After successive drying (80°C) X-ray diffraction pattern and IR absorption spectra showed a re-crystallization of NH3BH3 and the formation of a geopolymer. SEM/EDX analyses indicate that a new NH3BH3-geopolymer (AB-G) composite material formed. The geopolymer part consists of mainly sialate units similar to those obtained for NaBH4-geopolymer composites [1]. Acid catalyzed hydrogen release reveals boric acid and NH4Cl for AB and AB-G in the filtrate. For AB-G the geopolymer part has transformed to silica gel extracting Al3+ in the solution. The AB-G shows enhanced stability in neutral and weak basic solution compared to AB. TG/DTA experiments reveal a total weight loss of 11.8 % for AB-G in two main exothermic steps at around 120°C and 155°C when heated to 300°C. IR absorption spectra indicate transformations to PIB (polyiminoboranes) taken from samples cooled from 300°C.
AB - Ammonia-borane, NH3BH3 can easily be dissolved in sodium aluminate and silicate solutions. Brought together reveal immediate gel formation. After successive drying (80°C) X-ray diffraction pattern and IR absorption spectra showed a re-crystallization of NH3BH3 and the formation of a geopolymer. SEM/EDX analyses indicate that a new NH3BH3-geopolymer (AB-G) composite material formed. The geopolymer part consists of mainly sialate units similar to those obtained for NaBH4-geopolymer composites [1]. Acid catalyzed hydrogen release reveals boric acid and NH4Cl for AB and AB-G in the filtrate. For AB-G the geopolymer part has transformed to silica gel extracting Al3+ in the solution. The AB-G shows enhanced stability in neutral and weak basic solution compared to AB. TG/DTA experiments reveal a total weight loss of 11.8 % for AB-G in two main exothermic steps at around 120°C and 155°C when heated to 300°C. IR absorption spectra indicate transformations to PIB (polyiminoboranes) taken from samples cooled from 300°C.
UR - http://www.scopus.com/inward/record.url?scp=84959888229&partnerID=8YFLogxK
U2 - 10.1002/9781119211747.ch3
DO - 10.1002/9781119211747.ch3
M3 - Conference contribution
AN - SCOPUS:84959888229
SN - 9781119040439
T3 - Ceramic Engineering and Science Proceedings
SP - 21
EP - 35
BT - Developments in Strategic Ceramic Materials - A Collection of Papers Presented at the 39th International Conference on Advanced Ceramics and Composites
A2 - Zhu, Dongming
A2 - Fischer, Thomas
A2 - Wang, Jingyang
A2 - Kriven, Waltraud M.
PB - American Ceramic Society
T2 - Developments in Strategic Ceramic Materials - 39th International Conference on Advanced Ceramics and Composites, ICACC 2015
Y2 - 25 January 2015 through 30 January 2015
ER -