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Regeneration of Supported Ammonia Borane to Achieve Higher Yield
ChemistrySelect ( IF 1.9 ) Pub Date : 2021-02-09 , DOI: 10.1002/slct.202004833 Animesh Hajari 1 , Binayak Roy 1 , Vinit Kumar 1 , Ankita Bishnoi 1 , Pratibha Sharma 1
ChemistrySelect ( IF 1.9 ) Pub Date : 2021-02-09 , DOI: 10.1002/slct.202004833 Animesh Hajari 1 , Binayak Roy 1 , Vinit Kumar 1 , Ankita Bishnoi 1 , Pratibha Sharma 1
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Ammonia borane is considered as a potential hydrogen storage material due to its high hydrogen content, ease of handling, and moderate dehydrogenation temperature. The regeneration of ammonia borane (AB) is essential for its use as a sustainable hydrogen storage material. In the current work, we attempted to regenerate AB from the post heated product (spent fuel, i. e., products obtained after hydrogen release) through a digestion mediated B−O−C route. We have also demonstrated the dehydrogenation and regeneration compatibility with the use of a cost‐effective layered aluminosilicate support material, bentonite (gBen), and this facilitated both the dehydrogenation and regeneration processes. The isothermal dehydrogenation study suggested that the support material helped to improve the hydrogen release kinetics from AB at lower temperatures. During the regeneration process, gBen supported AB is observed to provide a higher yield (71 %) of the digested compound ammonium tetramethylborate (ATMB) as against post heated AB (with 35 % in case of pure AB to post AB to ATMB), which finally resulted in increasing the overall regeneration yield of AB. The regeneration of AB with high yield and purity is confirmed by 11B NMR and XRD analysis.
中文翻译：
负载型硼烷的再生可实现更高的收率
氨硼烷因其氢含量高，易于处理和适度的脱氢温度而被认为是潜在的储氢材料。氨硼烷（AB）的再生对于将其用作可持续的储氢材料至关重要。在当前的工作中，我们试图通过消化介导的B-O-C途径从后加热产物（废燃料，即氢释放后获得的产物）再生AB。我们还证明了使用具有成本效益的层状铝硅酸盐载体材料膨润土（gBen）可以实现脱氢和再生的兼容性，这促进了脱氢和再生过程。等温脱氢研究表明，载体材料有助于在较低温度下改善AB的氢释放动力学。在再生过程中，观察到gBen负载的AB相对于后加热的AB（在纯AB的情况下为35％的AB到ATMB的情况下，消化的化合物四甲基硼酸铵（ATMB）的产率为71％）。最终提高了AB的整体再生收率。通过以下方法证实了AB的高产和高纯度再生11 B NMR和XRD分析。
更新日期：2021-02-09
中文翻译：
负载型硼烷的再生可实现更高的收率
氨硼烷因其氢含量高，易于处理和适度的脱氢温度而被认为是潜在的储氢材料。氨硼烷（AB）的再生对于将其用作可持续的储氢材料至关重要。在当前的工作中，我们试图通过消化介导的B-O-C途径从后加热产物（废燃料，即氢释放后获得的产物）再生AB。我们还证明了使用具有成本效益的层状铝硅酸盐载体材料膨润土（gBen）可以实现脱氢和再生的兼容性，这促进了脱氢和再生过程。等温脱氢研究表明，载体材料有助于在较低温度下改善AB的氢释放动力学。在再生过程中，观察到gBen负载的AB相对于后加热的AB（在纯AB的情况下为35％的AB到ATMB的情况下，消化的化合物四甲基硼酸铵（ATMB）的产率为71％）。最终提高了AB的整体再生收率。通过以下方法证实了AB的高产和高纯度再生11 B NMR和XRD分析。
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