The Ouzo effect to selectively assemble molybdenum clusters into nanomarbles or nanocapsules with increased HER activity†
Flavien
Sciortino, 
a
Jérôme
Cuny,
b
Fabien
Grasset,
c
Corinne
Lagrost,
a
Pierric
Lemoine,
a
Yann
Molard,
a
Stéphane
Cordier,
a
Soizic
Chevance
a
and
Fabienne
Gauffre
*a
a
Jérôme
Cuny,
b
Fabien
Grasset,
c
Corinne
Lagrost,
a
Pierric
Lemoine,
a
Yann
Molard,
a
Stéphane
Cordier,
a
Soizic
Chevance
a
and
Fabienne
Gauffre
*a
Abstract
Metal cluster nanoparticles are obtained by simple solvent shifting called the Ouzo effect. Remarkably, the assembly of [{Mo6Br8}L6]2− (L = Br− or NCS−) cluster units can be directed into nanomarbles or nanocapsules depending on the cluster chemistry. When deposited on electrodes, these nanoparticles show good activities in electrochemical water splitting under mild conditions.
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