Achieving Wide‑Temperature‑Range Physical and Chemical Hydrogen Sorption in a Structural Optimized Mg/N‑Doped Porous Carbon Nanocomposite (IMAGE)

Shanghai Jiao Tong University Journal Center

Achieving Wide‑Temperature‑Range Physical and Chemical Hydrogen Sorption in a Structural Optimized Mg/N‑Doped Porous Carbon Nanocomposite

Caption

  • The as-synthesized rN-pC exhibited H2 uptake of ~0.9 wt% at 77 K and ultralow pressure of ~0.1 bar, with an isosteric adsorption enthalpy (Qst) of ~14 kJ mol-1 H2 at zero coverage.
  • The 60MgH2@rN-pC started to decompose at 175 °C and released H2 of 3.38 wt% at 300 °C within 30 min, which showed outstanding desorption kinetics of MgH2 among Mg-carbon material nanocomposites.
  • The drawback of nanoconfinement scaffolds that cannot store hydrogen was firstly overcome.

Credit

Yinghui Li, Li Ren, Zi Li, Yingying Yao, Xi Lin, Wenjiang Ding, Andrea C. Ferrari*, Jianxin Zou*.

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License

CC BY-NC-ND

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