Considerations for dual barrel electrode fabrication and experimentation

Krushinski, Lynn E.; Kauffmann, Philip J.; Wang, Amber K.; Dick, Jeffrey E.

doi:10.1039/d3an01969a

Cited by 2 publications

(1 citation statement)

References 34 publications

(39 reference statements)

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“…Stochastic electrochemical methods are commonly employed for single entity measurements, including single doped partially oxidized polyaniline for nitrite reduction, Nafion-based particles for permanganate reduction, and pyrroloquinoline quinone (PQQ) modified multiwalled carbon nanotube for hydrazine oxidation and poly(vinylferrocene)-modified graphene nanoplatelets for cysteine oxidation . One area of great interest moving forward is the development of new measurement modalities to study curious chemistry in electrochemically unreachable environments. ,− One potentially exciting new avenue of inquiry for such studies is single entity electrocatalysis in a dissolving microdroplet. , …”

Section: Specific Electrocatalytic Reactionsmentioning

confidence: 99%

Single Entity Electrocatalysis

Clarke,

Krushinski,

Vannoy

et al. 2024

Chem. Rev.

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Making a measurement over millions of nanoparticles or exposed crystal facets seldom reports on reactivity of a single nanoparticle or facet, which may depart drastically from ensemble measurements. Within the past 30 years, science has moved toward studying the reactivity of single atoms, molecules, and nanoparticles, one at a time. This shift has been fueled by the realization that everything changes at the nanoscale, especially important industrially relevant properties like those important to electrocatalysis. Studying single nanoscale entities, however, is not trivial and has required the development of new measurement tools. This review explores a tale of the clever use of old and new measurement tools to study electrocatalysis at the single entity level. We explore in detail the complex interrelationship between measurement method, electrocatalytic material, and reaction of interest (e.g., carbon dioxide reduction, oxygen reduction, hydrazine oxidation, etc.). We end with our perspective on the future of single entity electrocatalysis with a key focus on what types of measurements present the greatest opportunity for fundamental discovery.

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