Hydrogen adsorption properties of single-walled carbon nanotube—Nanocrystalline platinum composites

Abstract Single-walled carbon nanotubes (SWNTs) have been synthesized by the pyrolysis of methane using hydrogen decrepitated Mischmetal (Mm) based AB 3 alloy hydride catalyst by catalytic chemical vapour deposition (CCVD) technique. The use of metal hydrides as catalysts for the bulk synthesis of good quality SWNTs by CCVD technique has been demonstrated. Nanocrystalline Pt dispersed single-walled carbon nanotubes (Pt/SWNT) have been prepared by chemical reduction method using functionalized SWNT. SWNTs and Pt/SWNTs have been characterized by SEM, TEM, HRTEM, Raman, TGA and XRD studies. Hydrogen storage properties of as-grown, purified SWNT and nanocrystalline Pt dispersed SWNT have been investigated using high-pressure Seiverts’ apparatus in the pressure range 1–100 bar and at 298 and 125 K. The effects of purification and dispersion of Pt nanoparticles on the hydrogen storage capacity have been discussed based on the chemisorption process.

[1]  Peter Lamp,et al.  Physisorption of Hydrogen on Microporous Carbon and Carbon Nanotubes , 1998 .

[2]  Andreas Hirsch,et al.  Sidewall Functionalization of Carbon Nanotubes. , 2001, Angewandte Chemie.

[3]  Kuo Chu Hwang,et al.  Efficient cleavage of carbon graphene layers by oxidants , 1995 .

[4]  Yuchen Ma,et al.  Effective hydrogen storage in single-wall carbon nanotubes , 2001 .

[5]  Cheng,et al.  Hydrogen storage in single-walled carbon nanotubes at room temperature , 1999, Science.

[6]  S. Ramaprabhu,et al.  Design and development of hydrogen absorption/desorption high pressure apparatus based on the pressure reduction method , 1998 .

[7]  Richard E. Smalley,et al.  Surface defect site density on single walled carbon nanotubes by titration , 2000 .

[8]  Kenneth A. Smith,et al.  Hydrogen adsorption and cohesive energy of single-walled carbon nanotubes , 1999 .

[9]  A. Reddy,et al.  Pt/SWNT-Pt/C Nanocomposite Electrocatalysts for Proton-Exchange Membrane Fuel Cells , 2007 .

[10]  A. Reddy,et al.  Alloy hydride catalyst route for the synthesis of single-walled carbon nanotubes, multi-walled carbon nanotubes and magnetic metal-filled multi-walled carbon nanotubes , 2006 .

[11]  A. Ōya,et al.  Comparison of hydrogen adsorption abilities of platinum-loaded carbon fibers prepared using two different methods , 2000 .

[12]  M. W. Cole,et al.  Hydrogen Adsorption in Nanotubes , 1998 .

[13]  Un Jeong Kim,et al.  Raman and IR spectroscopy of chemically processed single-walled carbon nanotubes. , 2005, Journal of the American Chemical Society.

[14]  Z. Gu,et al.  Purification of single-walled carbon nanotubes , 1999 .

[15]  J. Karl Johnson,et al.  Optimization of Carbon Nanotube Arrays for Hydrogen Adsorption , 1999 .

[16]  D. Bethune,et al.  Storage of hydrogen in single-walled carbon nanotubes , 1997, Nature.

[17]  Quan Qing,et al.  Effect of Chemical Oxidation on the Structure of Single-Walled Carbon Nanotubes , 2003 .

[18]  B. Mcenaney,et al.  Molecular Simulations of Hydrogen Storage in Carbon Nanotube Arrays , 2000 .

[19]  S. Ramaprabhu,et al.  Nanostructured Pt functionlized multiwalled carbon nanotube based hydrogen sensor. , 2006, The journal of physical chemistry. B.

[20]  Palmer,et al.  Competing routes for charge transfer in co-adsorption of K and O2 on graphite. , 1993, Physical review letters.

[21]  M. Dresselhaus,et al.  Physical properties of carbon nanotubes , 1998 .

[22]  Gu Xu,et al.  High pressure saturation of hydrogen stored by single-wall carbon nanotubes , 2004 .

[23]  X. Bai,et al.  Hydrogen storage in aligned carbon nanotubes , 2001 .

[24]  A. Züttel,et al.  Hydrogen-storage materials for mobile applications , 2001, Nature.

[25]  Chen,et al.  High H2 uptake by alkali-doped carbon nanotubes under ambient pressure and moderate temperatures , 1999, Science.

[26]  Y. Sakurai,et al.  Dependence of hydrogen storage characteristics of mechanically milled carbon materials on their host structures , 2004 .

[27]  K. L. Tan,et al.  Nanosized Nickel(or Cobalt)/Graphite Composites for Hydrogen Storage , 2002 .

[28]  T. Mallouk,et al.  Individual single-walled nanotubes and hydrogels made by oxidative exfoliation of carbon nanotube ropes. , 2003, Journal of the American Chemical Society.

[29]  Hyun-Seok Kim,et al.  Hydrogen storage in ni nanoparticle-dispersed multiwalled carbon nanotubes. , 2005, The journal of physical chemistry. B.

[30]  W. Goddard,et al.  Liquefaction of H2 molecules upon exterior surfaces of carbon nanotube bundles , 2005 .

[31]  Quan-hong Yang,et al.  Hydrogen adsorption/desorption behavior of multi-walled carbon nanotubes with different diameters , 2003 .

[32]  J. Johnson,et al.  MOLECULAR SIMULATION OF HYDROGEN ADSORPTION IN SINGLE-WALLED CARBON NANOTUBES AND IDEALIZED CARBON SLIT PORES , 1999 .

[33]  F. Wei,et al.  The evaluation of the gross defects of carbon nanotubes in a continuous CVD process , 2003 .

[34]  T. Fukunaga,et al.  Hydrogen desorption property of mechanically prepared nanostructured graphite , 2001 .

[35]  Malcolm L. H. Green,et al.  Mechanical damage of carbon nanotubes by ultrasound , 1996 .

[36]  S. Wiberley,et al.  Introduction to infrared and Raman spectroscopy , 1965 .

[37]  A. Reddy,et al.  Hydrogen storage properties of nanocrystalline Pt dispersed multi-walled carbon nanotubes , 2007 .

[38]  Y. Hao,et al.  Defect Location of Individual Single-Walled Carbon Nanotubes with a Thermal Oxidation Strategy , 2002 .

[39]  Richard E. Smalley,et al.  Enhancement of adsorption inside of single-walled nanotubes: opening the entry ports , 2000 .

[40]  E. Yoo,et al.  Atomic Hydrogen Storage in Carbon Nanotubes Promoted by Metal Catalysts , 2004 .