Cover Picture: Fast and Reversible Surface Redox Reaction in Nanocrystalline Vanadium Nitride Supercapacitors (Adv. Mater. 9/2006) | Zendy

Choi D. | Zendy; Blomgren G. E. | Zendy; Kumta P. N. | Zendy

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Cover Picture: Fast and Reversible Surface Redox Reaction in Nanocrystalline Vanadium Nitride Supercapacitors (Adv. Mater. 9/2006)

Author(s) -

Choi D.,

Blomgren G. E.,

Kumta P. N.

Publication year - 2006

Publication title -

advanced materials

Language(s) - English

Resource type - Reports

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200690036

Subject(s) - vanadium nitride , materials science , nanocrystalline material , redox , supercapacitor , vanadium , transmission electron microscopy , transition metal , nitride , chemical engineering , nanotechnology , capacitance , electrode , metallurgy , catalysis , organic chemistry , chemistry , layer (electronics) , engineering

The cover shows a high magnification transmission electron microscopy image of VN nanoparticles that exhibit enhanced supercapacitor response. The high capacitance is due to V undergoing a series of highly reversible redox reactions. These involve a transition between II–IV oxidation states via hydroxyl bonding confined to a few atomic layers of vanadium oxides formed on the surface of the underlying nitride, as discussed by Kumta and co‐workers on p. 1178.

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