Ammonia‐Borane Geopolymer (AB‐G) Composite
Ammonia‐Borane Geopolymer (AB‐G) Composite
复制标题
氨硼烷地质聚合物 (ABâG) 复合材料
DOI:
10.1002/9781119211747.ch3
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
M. Wark
中科院分区:
文献类型:
--
作者:
L. Schomborg;Z. Assi;J. C. Buhl;C. H. Rüscher;M. Wark
Ammonia‐borane, NH3BH3can easily be dissolved in sodium aluminate and silicate solutions. Brought together reveal immediate gel formation. After successive drying (80°C) Xray diffraction pattern and IR absorption spectra shows a re‐crystallization of NH3BH3and the formation of a geopolymer. SEM/EDX analyses indicate the formation of a new3BH3‐geopolymer (ABG) composite material. The geopolymer part consists of mainly sialate units similar to those obtained for NaBH4‐geopolymer composites. Acid catalyzed hydrogen release reveals boric acid and NH4for 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.
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DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
J. Buhl;T. Gesing;T. Höfs;C. Rüscher
通讯作者:
C. Rüscher
DOI:
10.1002/9781118807743.ch9
发表时间:
2013
期刊:
Zeitschrift für Kristallographie - Crystalline Materials
影响因子:
--
作者:
C. Rüscher;Lars Schomborg;A. Schulz;J. Buhl
通讯作者:
J. Buhl
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
C. Rüscher;E. Mielcarek;J. Wongpa;F. Jirasit;W. Lutz
通讯作者:
W. Lutz
影响因子:
2.1
作者:
Ruescher, Claus H.;Mielcarek, Elzbieta M.;Lohaus, Ludger
通讯作者:
Lohaus, Ludger
影响因子:
4
作者:
T. K. Nielsen;A. Karkamkar;M. Bowden;F. Besenbacher;T. Jensen;T. Autrey
通讯作者:
T. Autrey