Efficient chemical regeneration of LiBH4NH3 spent fuel for hydrogen storage. (5th January 2015)

• Record Type: Journal Article
• Authors: Tan, Yingbin; Chen, Xiaowei; Xia, Guanglin; Yu, Xuebin
• Is Part Of: International journal of hydrogen energy. Volume 40:Number 1(2015)
• Page Start: 146
• Page End: 150
• Publication Date: 2015-01-05
• Subjects: Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2014.11.040
• Languages: English
• ISSNs: 0360-3199

Abstract

<abstract xml:lang="en" abstract-type="author" id="abs0010"> <title id="sectitle0010">Abstract</title> <sec> <p id="abspara0010">The absence of an efficient method for the regeneration of ammine metal borohydrides (M(BH₄)_n<italic>x</italic>NH₃, AMBs) from their dehydrogenated products has hindered their potential application as hydrogen storage materials. In this paper, we demonstrate a high-yield chemical regeneration of LiBH₄<bold />NH₃ based on a three step process (digestion (H⁺ addition), reduction (H⁻ addition), and ammonia complexation) at ambient temperature. Our results demonstrated that Li–B–N polymer was digested by methanol to form LiB(OCH₃)₄, which can be converted into LiBH₄ by using LiAlH₄ in the reduction process. The generation of LiBH₄<bold />NH₃ in ammonia complexion step was achieved by exposing the obtained LiBH₄ in an ammonia atmosphere.</p> </sec> </abstract>