Electrocatalytic Behavior of Functionalized Nanoparticles

Functionalized nanoparticles have emerged as versatile platforms for electrocatalysis, combining the high surface‐to‐volume ratio of nanoscale metals with tailored surface chemistries that modulate activity, selectivity and stability. By attaching organic ligands or inorganic shells to the metal core, researchers can tune electronic structure, local adsorption energies and interfacial charge transfer kinetics. Such modifications influence key metrics—including overpotential, turnover frequency and Faradaic efficiency—across reactions ranging from hydrogen evolution and oxygen reduction to CO₂ and nitrogen reduction. Surface functionalisation also governs nanoparticle dispersion on supports, resistance to sintering and tolerance to poisoning species. The interplay between ligand‐induced electronic effects and mass transport within porous assemblies underpins advances in energy conversion, sustainable fuel synthesis and decentralised chemical production. Ongoing efforts focus on deciphering structure–function relationships at atomic resolution, integrating in situ spectroscopies and computational modelling to guide rational design of next‐generation electrocatalysts.

Research from Nature Portfolio

Recent studies have demonstrated that controlling ligand dipole moment on platinum‐nickel alloy nanoparticles can lower the overpotential for oxygen reduction by altering Pt d‐band occupancy, yielding a twofold increase in mass activity under fuel‐cell conditions. Another series of investigations has shown that immobilising cobalt‐porphyrin complexes on graphene‐supported gold nanoparticles drastically enhances CO₂ reduction selectivity towards carbon monoxide, attributed to synergistic electronic coupling between the metal core and the macrocyclic ligand. A third line of work has explored copper sulfide nanoparticles capped with polymeric ligands for electrochemical nitrate reduction, achieving near‐unity Faradaic efficiency for ammonia at industrially relevant current densities by balancing adsorption strength and proton delivery at the catalyst surface.

Electrocatalytic Behavior of Functionalized Nanoparticles publication trend

The graph below shows the total number of articles in electrocatalytic behavior of functionalized nanoparticles across all publications each year (not limited to Nature Index journals).

Technical terms

Electrocatalysis: Acceleration of electrochemical reactions at electrode surfaces by catalysts.

Overpotential: Extra potential beyond the thermodynamic requirement to drive an electrochemical reaction at a given rate.

Turnover Frequency (TOF): Number of reactant molecules converted per active site per unit time.

Faradaic Efficiency: Fraction of total charge that produces the desired chemical product.

Functionalisation: Attachment of molecules or ions to a nanoparticle surface to modify its properties.

d‐Band Model: Framework linking metal electronic states to adsorption energies of intermediates.

Proton‐Coupled Electron Transfer (PCET): Concerted transfer of electrons and protons in redox reactions.