Cameron Luke Bentley

TL;DR: In this paper, the authors used a suite of correlative operando scanning probe and X-ray microscopy techniques to establish a link between the oxygen evolution activity and the local operational chemical, physical and electronic nanoscale structure of single-crystalline β-Co(OH)2 platelet particles.

TL;DR: This Perspective provides a roadmap for next-generation studies in electrochemistry and electrocatalysis, advocating that complex electrode surfaces and interfaces be broken down and studied as a set of simpler "single entities" from which the resulting nanoscale understanding of reactivity can be used to create rational models that are self-consistent across broader length scales and time scales.

TL;DR: In this article, the first spatially-resolved measurements of HER activity on natural crystals of molybdenite, achieved using voltammetric scanning electrochemical cell microscopy (SECCM) measurements have allowed the HER to be visualized at multiple different potentials to construct electrochemical flux movies with nanoscale resolution.

TL;DR: It is demonstrated how a simple meniscus imaging probe of just 30 nm in size can be deployed for direct electrochemical and topographical imaging of electrocatalytic materials at the nanoscale, and shows, for the first time, that electrochemical reaction rates vary significantly across an individual AuNP surface and that these single entities cannot be considered as uniformly active.

TL;DR: Recent years have seen spectacular progress, such that a variety of different types of SEPM technique are now available and 10s of nm spatial resolution is becoming increasingly accessible, opening many new opportunities for the characterization of flux processes and interfacial activity in a whole raft of systems, including electrode surfaces, electromaterials, soft matter, living cells and tissues.