Coherent Bragg imaging of 60 nm Au nanoparticles under electrochemical control at the NanoMAX beamline.

ABSTRACT: Nanoparticles are essential electrocatalysts in chemical production, water treatment and energy conversion, but engineering efficient and specific catalysts requires understanding complex structure-reactivity relations. Recent experiments have shown that Bragg coherent diffraction imaging might be a powerful tool in this regard. The technique provides three-dimensional lattice strain fields from which surface reactivity maps can be inferred. However, all experiments published so far have investigated particles an order of magnitude larger than those used in practical applications. Studying smaller particles quickly becomes demanding as the diffracted intensity falls. Here, in situ nanodiffraction data from 60 nm Au nanoparticles under electrochemical control collected at the hard X-ray nan

SUBMITTER: Bjorling A 

PROVIDER: S-EPMC6730624 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature