Tailoring of Single Walled Carbon Nanohorns for Hydrogen Storage and Catalyst Supports

Conference · Sun Dec 31 23:00:00 EST 2006

OSTI ID:1158730

Hu, Hui ^[1]; Zhao, Bin ^[1]; Puretzky, Alexander A ^[1]; Rouleau, Christopher M ^[1]; Styers-Barnett, David J ^[1]; Geohegan, David B ^[1]; Brown, Craig M. ^[2]; Liu, Yun ^[2]; Zhou, Wei ^[3]; Kabbour, Houria ^[4]; Neumann, Dan ^[3]

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1. ORNL
2. Indiana University Cyclotron Facility, Bloomington, IN
3. National Institute of Standards and Technology (NIST)
4. California Institute of Technology, Pasadena

We report the post-processing chemical treatments of single walled carbon nanohorns (SWNHs) as a medium with tunable porosity to optimize hydrogen adsorption. Laser synthesized SWNHs are oxidized in air to achieve surface areas up to 1900 m2/g. Chemistry methods are described for the decoration of SWNHs with 1-3 nm Pt nanoparticles to probe spillover and metal-assisted hydrogen storage mechanisms. Hydrogen storage of opened SWNHs is 2.6 wt% at 77K, which is 3 times as that of as-prepared SWNHs.

• Research Organization: Oak Ridge National Laboratory (ORNL); Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE); SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1158730
• Country of Publication: United States
• Language: English

Related Subjects

Hydrogen Storage
Nanohorns
Single Walled