Lee, Hyun-Sook Hwang, Son-Jong Kim, Hoon Kee Lee, Young-Su Park, Jinsol Yu, Jong-Sung Cho, Young Whan 2024-01-20T14:01:20Z 2024-01-20T14:01:20Z 2021-09-05 2012-10 1948-7185 https://pubs.kist.re.kr/handle/201004/128828 We discuss the use of nuclear magnetic resonance (NMR) spectroscopy to investigate the physical state of the eutectic composition of LiBH4-Ca(BH4)(2) (LC) infiltrated into mesoporous scaffolds and the interface effect of various scaffolds. Eutectic melting and the melt infiltration of mixed borohydrides were observed through in situ NMR. In situ and ex situ NMR results for LC mixed with mesoporous scaffolds indicate that LiBH4 and Ca(BH4)(2) exist as an amorphous mixture inside of the pores after infiltration. Surprisingly, the confinement of the eutectic LC mixture within the mesopores is initiated below the melting temperature, which indicates a certain interaction between the borohydrides and the mesoporous scaffolds. The confined borohydrides remain inside of the pores after cooling. These phenomena were not observed in microporous or nonporous materials, and this observation highlights the importance of the pore structure of the scaffolds. Such surface interactions may be associated with a faster dehydrogenation of the nanoconfined borohydrides. English American Chemical Society In Situ NMR Study on the Interaction between LiBH4-Ca(BH4)(2) and Mesoporous Scaffolds Article 10.1021/jz301199y 1 The Journal of Physical Chemistry Letters, v.3, no.20, pp.2922 - 2927 The Journal of Physical Chemistry Letters 3 20 2922 2927 N scie scopus 000310177200001 2-s2.0-84867651376 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Atomic, Molecular & Chemical Chemistry Science & Technology - Other Topics Materials Science Physics Article METAL BOROHYDRIDES LIBH4 CARBON NANOPARTICLES REVERSIBILITY CONFINEMENT DESORPTION RELEASE Energy and Charge Transport Energy Conversion and Storage