Nickel nanoshells

Z.S. Wronski, G.J.C. Carpenter, Carbon nanoshells obtained from leaching carbonyl nickel metal powders, Carbon 44(2006) 1779-1789. 

In 2010 [95], Ozaki and collaborators mixed a furan resin with iron, cobalt, or nickel acetylacetonates and carbonized the mixture in N2 at 600 to 1,000 °C. The resulting material was ball milled and then acid washed to remove excess metal. The best catalyst was obtained with the Co complex carbonized at 800 °C. Its Fonset in 0.5 M H2SO4 was 0.62 V vs. RHE. The catalyst had a specific surface area of 211 m /g and its N/C ratio was 0.035. Its ORR activity was explained by the formation of carbon nanoshells, but also by N doping of the catalyst carbonaceous material. 

Sattarahmady N, Heli H, Moosavi-Movahedi AA (2010) An electrochemical acetylcholine biosensor based on nanoshells of hollow nickel microspheres-carbon microparticles-Nalion nanocomposite. Biosens Bioelectron 25 2329-2335... 

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