Enhancing the cycling stability of MgH₂ using nitrogen modified titanate

Abstract

By introducing nitrogen anions, we obtained a N-doped K2Ti6O13 (N-KTiO) catalyst with a considerably reduced band gap. The experimental results demonstrate that the N-KTiO could enhance the de/re-hydrogenation kinetics and...

Boosting Hydrogen Storage Performance of MgH2 by Oxygen Vacancy-Rich H-V2O5 Nanosheet as an Excited H-Pump

“…1 g and S2 ). The electron-donating ability of N atoms could enhance the charge transfer, facilitating the decomposition of hydrogen molecule, and destabilization of the Mg-H bond [ 42 , 43 ]. However, due to the small content of N, the effect of N element on the improvement of properties is not emphasized in this work.…”

Fabrication of amorphous TiO2 hydrogen channels and graphene wrappers to enhance the hydrogen storage properties of MgH2 with extremely high cycle stability

“…5 The hydrogen releasing temperatures of pristine MgH 2 have been demonstrated to be above 300 °C, which is not practically applicable. 6 Various methods, such as alloying 4,7–10 and nanosizing 6,11–15 to improve the thermodynamic properties and catalysts 4,16–30 to improve the kinetic properties, have been tried to improve the hydrogen storage properties of MgH 2 . Transition metals, with their multivalent character, were found to be effective in enhancing the hydrogen storage performance of hydrogen storage materials.…”

“…Transition metals, with their multivalent character, were found to be effective in enhancing the hydrogen storage performance of hydrogen storage materials. 16–25 The transition metal oxide-based catalyst TiO 2 has attracted much attention due to its earth abundance, thermodynamic stability, and non-toxicity. Porous carbon-supported crystalline TiO 2 nanocomposites were prepared by calcining furfuryl alcohol-filled MIL-125(Ti) at 900 °C and introduced into MgH 2 by ball milling to dramatically enhance the hydrogen storage performance of MgH 2 .…”