Modified MgH2 Hydrogen Storage Properties Based on Grapefruit Peel-Derived Biochar

Carbon materials play an important role in the development of solid hydrogen storage materials. The main purpose this work is to study low-cost synthesis biomass carbon (BC) and its positive effect on behavior magnesium hydride (MgH2). Herein, it proven that when used together with (MgH2), can be as adsorption desorption channel for hydrogen. initial dehydrogenation temperature MgH2 + 10 wt% BC composite 250 °C, which 110 °C lower than pure MgH2. In addition, system complete all processes within min at 350 °C. Meanwhile, 5.1 H2 also dehydrogenated 1 h 300 Under same conditions, hardly starts release After dehydrogenation, start absorb conditions 225 3 MPa, 6.13 absorbed h, basically reaching theoretical limit. Cycling experiments show has a good stability. cycles, capacity shows almost no obvious decline. It believed help research efficient carbon-based multifunctional catalysts.