Three Stages of Oxidation of Nickel-Cobalt Nanoparticles (IMAGE)

DOE/Brookhaven National Laboratory

Three Stages of Oxidation of Nickel-Cobalt Nanoparticles

Caption

Three stages of oxidation of nickel-cobalt nanoparticles. Left: the pristine nickel-cobalt nanoparticle. Middle: an intermediate stage in which the formation of pinholes allows oxygen access to the interior. Right: the Swiss-cheese-like structure with dark areas representing the voids within the particle. Catalytic reactions can occur across the entire surfaces and along the inner surfaces of the pores.

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Brookhaven National Laboratory

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