The identification of suitable methods to develop NMs is therefore likely to be the key for breakthroughs in various scientific fields. The design of NCs is at the interface of several disciplines including chemistry and nanoscience . A range of wet-chemistry strategies are common to prepare NMs due to their relative simplicity and turnability . For instance, metal nanoparticles (NPs) are promising catalysts . An example is gold (Au) NPs relevant for various catalytic processes , such as CO 3/29 oxidation, including electrocatalytic processes , such as alcohol-oxidations at the core of direct alcohol fuel cells (DAFCs) technologies for energy conversion . Several metal NPs can be obtained by colloidal approaches , i.e. by reduction of a metal precursor in an organic or aqueous solvent in the presence of reducing agents.