Electric Field Effects in Catalysis

Electric fields can modulate chemical reactivity by stabilising charged or polar transition states and intermediates, thereby altering reaction kinetics and selectivity. Both endogenous fields in enzyme active sites and applied external fields can influence bond activation, isomerisation and phase behaviour. Recent advances in experimental techniques and computational modelling have enabled precise control and characterisation of field orientations and strengths, revealing mechanisms by which electric fields lower activation barriers, steer reaction pathways and enable non-thermal control over catalytic processes. Applications range from enzyme design and single-molecule switches to solvent-mediated catalysis and sustainable fuel synthesis, underscoring the broad potential of electric-field-induced catalysis in chemical, biological and materials science contexts.

Research from Nature Portfolio

Ab initio molecular dynamics has shown that fields of 0.10–0.15 V Å⁻¹ can induce electrofreezing of bulk water to a ferroelectric glassy phase, highlighting field-mediated control of interfacial hydration and catalytic microenvironments. In molecular junctions, strong local fields generated by scanning tunnelling microscope tips catalyse the cis-to-trans isomerisation of cumulene derivatives by stabilising zwitterionic resonance forms, achieving exclusive trans selectivity via transition-state lowering. Theoretical investigations further propose that intense electric fields can drive methanol dehydration directly to dimethyl ether, pointing to field-enabled routes for clean fuel synthesis without conventional acid catalysts.

Electric Field Effects in Catalysis publication trend

The graph below shows the total number of articles in electric field effects in catalysis across all publications each year (not limited to Nature Index journals).

Technical terms

Electric field: A vector field representing the force exerted on charged particles, measured in volts per metre (V m⁻¹) or volts per ångström (V Å⁻¹).

Oriented external electric field (OEEF): A controlled electric field applied in a fixed direction to influence molecular alignment and reaction pathways.

Transition state: A high-energy, transient configuration of nuclei and electrons at the apex of a reaction energy profile, whose stabilisation lowers the activation barrier.

Polarizability: The extent to which a molecule’s electron cloud can be distorted by an external electric field, affecting its interaction energy.

Electrostatic preorganisation: The arrangement of charged and polar residues around a catalytic centre to generate a stabilising electric field for the transition state.

References

1. Electrofreezing of liquid water at ambient conditions. Nature Communications (2024).
2. Directing isomerization reactions of cumulenes with electric fields. Nature Communications (2019).
3. Novel electrochemical route to cleaner fuel dimethyl ether. Scientific Reports (2017).
4. Solvent Organization and Rate Regulation of a Menshutkin Reaction by Oriented External Electric Fields are Revealed by Combined MD and QM/MM Calculations. Journal of the American Chemical Society (2020).
5. How Oriented External Electric Fields Modulate Reactivity. Chemistry - A European Journal (2021).
6. Electrostatic Origin of the Catalytic Power of Enzymes and the Role of Preorganized Active Sites*. Journal of Biological Chemistry (1998).
7. Dipolar molecules inside C 70 : an electric field-driven room-temperature single-molecule switch. Physical Chemistry Chemical Physics (2016).