TY - JOUR AB - Sodium borohydride (NaBH4 ) is among the most studied hydrogen storage materials because it is able to deliver high-purity H2 at room temperature with controllable kinetics via hydrolysis; however, its regeneration from the hydrolytic product has been challenging. Now, a facile method is reported to regenerate NaBH4 with high yield and low costs. The hydrolytic product NaBO2 in aqueous solution reacts with CO2 , forming Na2 B4 O7 ?10?H2 O and Na2 CO3 , both of which are ball-milled with Mg under ambient conditions to form NaBH4 in high yield (close to 80?%). Compared with previous studies, this approach avoids expensive reducing agents such as MgH2 , bypasses the energy-intensive dehydration procedure to remove water from Na2 B4 O7 ?10?H2 O, and does not require high-pressure H2 gas, therefore leading to much reduced costs. This method is expected to effectively close the loop of NaBH4 regeneration and hydrolysis, enabling a wide deployment of NaBH4 for hydrogen storage. AU - Zhu, Y AU - Ouyang, L AU - Zhong, H AU - Liu, J AU - Wang, H AU - Shao, H AU - Huang, Z AU - Zhu, M DA - 2020/05/01 DO - 10.1002/anie.201915988 EP - 8629 JO - Angewandte Chemie (International ed. in English) PB - Wiley PY - 2020/05/01 SP - 8623 TI - Closing the Loop for Hydrogen Storage: Facile Regeneration of NaBH4 from its Hydrolytic Product. VL - 59 Y1 - 2020/05/01 Y2 - 2024/03/28 ER -