论文部分内容阅读
Hydrogen is a promising fuel for it is clean,highly abundant and non-toxic,but on-board storage of hydrogen is still a challenge.So it is imperative to have an efficient method of hydrogen storage.The mesoporous MCM-48 especially the nickel-containing MCM-48 has great potential in hydrogen storage.MCM-48 was prepared by hydrothermal synthesis.Then electroless plating technology was used to deposit Ni on the surface of MCM-48 under ultrasonic environment.Powder X-ray diffraction(XRD),transmission electron microscopy(TEM),and N_2 adsorption-desorption were employed to investigate the pore structure properties.The results showed that all the samples had Ia3 d cubic structure and pore channels were highly ordered.Hydrogen adsorption studies showed that the MCM-48 after nickel plating adsorbed nearly twice the amount of hydrogen than pure MCM-48 at 2.0 MPa,263 K.So we believe that a small amount of Ni can improve the capacity of hydrogen adsorption of MCM-48 efficiently.
Hydrogen is a promising fuel for it is clean, highly abundant and non-toxic, but on-board storage of hydrogen is still a challenge. So it is imperative to have an efficient method of hydrogen storage.The mesoporous MCM-48 especially the nickel -containing MCM-48 has great potential in hydrogen storage. MCM-48 was prepared by hydrothermal synthesis. Electroless plating technology was used to deposit Ni on the surface of MCM-48 under ultrasonic environment. Powder XRD transmission electron microscopy (TEM), and N_2 adsorption-desorption were employed to investigate the pore structure properties. The results showed that all the samples had Ia3 d cubic structure and pore channels were highly ordered. Hydrogen adsorption studies showed the the MCM-48 after nickel plating adsorbed nearly twice the amount of hydrogen than pure MCM-48 at 2.0 MPa, 263 K.So we believe that a small amount of Ni can improve the capacity of hydrogen adsorption of MCM-48 efficiently.