AUTHOR=Fan Yanping , Chen Dandan , Yuan Zhenluo , Chen Qiang , Fan Guangxin , Zhao Dan , Liu Baozhong 

TITLE=Flexible, Water-Resistant and Air-Stable LiBH4 Nanoparticles Loaded Melamine Foam With Improved Dehydrogenation

JOURNAL=Frontiers in Chemistry

VOLUME=8

YEAR=2020

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.00045

DOI=10.3389/fchem.2020.00045

ISSN=2296-2646

ABSTRACT=<p>Flexible, water-resistant, and air-stable hydrogen storage material (named PMMA-LiBH<sub>4</sub>/GMF), consisting of LiBH<sub>4</sub> nanoparticles confined by poly (methylmethacrylate) (PMMA) and reduced graphene oxide (rGO) modified melamine foam (GMF), were prepared by a facile method. PMMA-LiBH<sub>4</sub>/GMF can recover original shape after compression at the strain of 50% and exhibits highly hydrophobic property (water contact angle of 123°). Owing to the highly hydrophobic property and protection of PMMA, PMMA-LiBH<sub>4</sub>/GMF demonstrates outstanding water-resistance and air-stability. Significantly, the onset dehydrogenation temperature of PMMA-LiBH<sub>4</sub>/GMF at first step is reduced to 94°C, which is 149°C less than that of LiBH<sub>4</sub>/GMF, and the PMMA-LiBH<sub>4</sub>/GMF desorbs 2.9 wt% hydrogen within 25 min at 250°C, which is obviously more than the dehydrogenation amount of LiBH<sub>4</sub>/GMF under the same conditions. It's our belief that the flexible, water-resistant and air-stable PMMA-LiBH<sub>4</sub>/GMF with a simple preparation route will provide a new avenue to the research of hydrogen storage materials.</p>