Borazine is a by-product often encountered in the thermal decomposition of ammonia borane, which leads to an inescapable hindrance towards sustainability and cost effectiveness. In this study, a low cost, low surface area clay mineral, bentonite, was modified and introduced as a support material. Bentonite (42.4 m² g⁻¹) revealed decomposition characteristics comparable to previously reported high surface area (usually 700–1000 m² g⁻¹) support materials. In addition, borazine formation from bentonite supported ammonia borane was observed to be completely eliminated. Extensive size strain analysis (Williamson–Hall and Warren–Averbach) indicated that the crystalline parameters were observed to be a considerable factor affecting the dehydrogenation reaction along with the high surface area. However, using in situ XRD and MS characterization, the supported decomposition was attributed to a facile pathway, which was dominated by DADB formation. The proposed pathway justifies the borazine elimination and more steady hydrogen release from AB.

中文翻译：

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一个原位上氨硼烷的固态分解研究：未缓和的副产物抑制由天然丰富层状粘土矿物†

硼嗪是氨硼烷热分解中经常遇到的副产物，导致不可避免地阻碍了可持续性和成本效益。在这项研究中，对低成本，低表面积粘土矿物，膨润土进行了改性，并将其作为载体材料引入。膨润土（42.4 m ² g ^-1）的分解特性可与先前报道的高表面积（通常为700–1000 m ² g ^-1）相媲美）支持材料。另外，观察到完全消除了由膨润土负载的氨硼烷形成的硼嗪。广泛的尺寸应变分析（Williamson-Hall和Warren-Averbach）表明，结晶参数是影响脱氢反应以及高表面积的重要因素。但是，使用原位XRD和MS表征，支持的分解归因于一种简便的途径，该途径主要由DADB的形成决定。所提出的途径证明消除了硼嗪和从AB中释放出更稳定的氢。