In Situ Preparation of 2D Co-B Nanosheets@1D TiO[sub.2] Nanofibers as a Catalyst for Hydrogen Production from Sodium Borohydride

In this study, 2D Co-B nanosheet-decorated 1D TiO[sub.2] nanofibers (2D Co-B NS-decorated 1D TiO[sub.2] NFs) are synthesized via electrospinning and an in situ chemical reduction technique. The as-prepared catalyst showed excellent catalytic performance in H[sub.2] generation from sodium borohydride (SBH). When compared to naked Co-B nanoparticles, the catalytic activity of the 2D Co-B NS-decorated 1D TiO[sub.2] NFs catalyst for the hydrolysis of SBH is significantly enhanced, as demonstrated by the high hydrogen generation rate (HGR) of 6020 mL min[sup.−1] g[sup.−1] at 25 °C. The activation energy of hydrolysis was measured to be 30.87 kJ mol[sup.−1] , which agreed with the reported values. The catalyst also showed good stability. Moreover, the effects of SBH, catalyst concentration, and temperature on the catalytic performance of 2D Co-B NS-decorated 1D TiO[sub.2] NFs were studied to gain a comprehensive understanding of the dehydrogenation mechanism of SBH. Based on these findings, we conclude that 2D Co-B NS-decorated 1D TiO[sub.2] NFs are effective catalytic materials for the dehydrogenation of SBH.