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Adsorption of hydrogen on multiwalled carbon natotubes at 77 K |
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| Authors: | Yaping Zhou Kui Feng Yan Sun and Li Zhou |
| Institution: | a Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, PR China b High Pressure Adsorption Laboratory (State Key Laboratory of Chemical Engineering), School of Chemical Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, PR China |
| Abstract: | Adsorption of H2 on multiwalled carbon nanotubes was measured at 77 K by a volumetric method. Adsorption and desorption isotherms are largely reversible. The adsorption capacity increased remarkably after receiving heat treatment at 400 °C and being pressed into pellets. The isotherms show typical feature of supercritical adsorption and were satisfactorily modeled by the model that applied for usual supercritical adsorption. The maximal adsorption capacity of hydrogen under the condition tested is less than 0.5 wt%. |
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