Synthesis and evaluation on performance of hydrogen storage of multi-walled carbon nanotubes decorated with platinum

Abstract

By means of chemical reduction, nanoparticles of platinum were deposited on the surface of multi-walled carbon nanotubes (MWCNTs). The performance of hydrogen storage of as-prepared MWCNTs decorated with platinum was investigated. The results indicate that: (1) Hydrogen uptake is more quick and intense for decorated MWCNTs than that for not decorated ones at 10.931 MPa and room temperature. The saturation of hydrogen uptake of the former only lasts about 30 min, while the latter needs about 150 min; (2) The amount of hydrogen uptake of decorated MWCNTs is about 1.13wt%, which is larger than that of not decorated ones (about 0.54wt%); (3) However, more than 37% hydrogen absorbed by decorated MWCNTs is chemisorbed.

Keywords

nanoscale platinum / carbon nanotubes / hydrogen storage / materials of energy resource / Pt/carbon nanotubes catalysts

References

[1] Iijima S. Helical Microtubes of Graphitic Carbon. Nature, 1991, 358: 56-58.

[2] Dillon A C, Jones T A, Bekkedahl C H, . Storage of Hydrogen Single-walled Carbon Nanotubes. Nature, 1997, 386(6623): 377-379.

[3] Dillon A C, Heben M J. Hydrogen Storage Using Carbon Adsorbents: Past, Present and Future. Appl. Phys., A, 2001, 72(2): 133-142.

[4] Darkrim F L, Malbrunot P, Tartaglia G P. Review of Hydrogen Storage by Adsorption in Carbon Nanotubes. Int. J. Hydrogen Energy, 2002, 27: 193-202.

[5] Liu C, Fan Y Y, Liu M, . Hydrogen Storage in Single-walled Carbon Nanotubes at Room Temperature. Science, 1999, 286(5442): 1127-1129.

[6] Li X S, Zhu H W, Ci L H, . Effects of Structure and Surface Properties on Carbonnanotubes' Hydrogen Storage Characteristics. Chinese Science bulletin, 2001, 16(46): 1358-1359.

[7] Lee S M, An K H, Lee Y H, . A Hydrogen Storage Mechanism in Single-walled nanotubes. J. Am. Chem. Soc., 2001, 123: 5059-5063.

[8] Heben M J, Dillon A C, Gennett T, . Rapid, Room Temperature, High-Density Hydrogen Adsorption on Single-walled Carbon Nanotubes at Atmospheric Pressure by a Metal Alloy. Materials Research Society Syposium Proceedings, 2001, 633: A9.1-A9.1.

[9] Gao X P, Qin X, Wu F,et al. Composite Hydrogen Storage Material of Hydrogen Storage Alloys/Carbon Nanotube and Producing Method Thereof.Patent, WO 01/53550A1

[10] Hibino K. Hydrogen Storage Method,Patent, JP10-072201

[11] Ankudinov A L, Rehr J J, John L, . Effect of Hydrogen Adsorption on the X-ray Adsorption Spectra of Small Pt Clusters. Physical Review Letter, 2001, 86(8): 1642-1645.

[12] Rajesh B, Ravindranathan K, . Preparation of Pt−Ru Bimetallic System Supported on Carbon Nanotubes. J. Mater. Chem., 2000, 10: 1757-1759.

[13] Ma Z Q, Xu C L, Yan J, . Preliminary Study on Hydrogen Storage in Carbon Nanofibers. New Carbon materials, 2000, 15(1): 64-67.