Category Archives: Fullerenes

Reversible hydrogen absorption in sodium intercalated fullerenes

Posted on 10 July 2012 by Daniele Pontiroli

The hydrogen absorption of sodium intercalated fullerenes was determined and compared to pure fullerenes C60. Up to 3.5 mass% hydrogen can reversibly be absorbed in NaxC60 at 200 C and a hydrogen pressure of 200 bar. The absorbed amount of … Continue reading →

Posted in Fullerenes, Hydrogen Storage | Leave a comment

NMR Study of the Mott Transitions to Superconductivity in the Two Cs3C60 Phases

Posted on 23 June 2010 by Daniele Pontiroli

We report a NMR and magnetometry study on the expanded intercalated fulleride Cs3C60 in both its A15 and face centered cubic structures. NMR allowed us to evidence that both exhibit a first-order Mott transition to a superconducting state, occurring at … Continue reading →

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Fullerenium Salts: A New Class of C60-Based Compounds

Posted on 26 January 2010 by Daniele Pontiroli

We report on the preparation and characterization of a fullerenium salt in the solid state, where the fullerene is in the 2+ oxidized state. To succeed in this long-standing challenge, we exploit the oxidizing power of one of the strongest … Continue reading →

Posted in Crystallography, Fullerenes | Leave a comment

Superionic Conductivity in the Li4C60 Fulleride Polymer

Posted on 8 April 2009 by Daniele Pontiroli

We report on the extraordinary superionic conductivity in the fulleride polymer Li4C60 , a crystalline material with no disorder. 7Li , NMR, and dc/ac conductivity show uncorrelated ionic hopping across small energy barriers (ΔEa∼200  meV ) and an ionic conductivity of … Continue reading →

Posted in Batteries, Fullerenes | Leave a comment