Electrocatalytic Nanostructures for Energy Conversion

Electrocatalytic nanostructures harness tailored architectures at the nanoscale to drive key energy‐conversion processes with enhanced efficiency, selectivity and durability. By engineering features such as high surface area, controlled pore networks and precise atomic arrangements, these materials promote rapid charge transfer and expose abundant active sites for reactions including hydrogen evolution, oxygen reduction, carbon dioxide reduction and alcohol oxidation. Advances in synthesis techniques—ranging from soft and hard templating to dealloying and self‐assembly—have yielded mesoporous, core–shell, hollow and two‐dimensional morphologies that address challenges of mass transport, catalyst stability and material utilisation. Such nanoarchitectures enable fine‐tuning of electronic structures, adsorption energies and catalytic pathways, thereby underpinning practical applications in fuel cells, water electrolysis and CO₂ utilisation. The global significance of these developments lies in their potential to reduce reliance on precious metals, cut energy losses and accelerate deployment of sustainable energy systems.

Research from Nature Portfolio

Seminal work has demonstrated the synthesis of mesoporous rhodium nanoparticles via polymeric micelle templates, yielding a high‐surface‐area network that exhibits enhanced methanol oxidation activity and remarkable thermal stability up to 400 °C. A general soft-enveloping strategy has been introduced for controlled growth of metallic nanocrystals inside mesoporous silica templates, producing monodispersed structures—such as Ag nanowires, AuAg networks and Pt frameworks—with superior electrocatalytic methanol oxidation performance. In addition, ordered nanoporous platinum nanowires have been fabricated by dual templating with anodic aluminium oxide and silica spheres, creating large, uniform mesopores that deliver high electrochemically active surface areas and outstanding mass and specific activities in methanol fuel‐cell reactions.

Electrocatalytic Nanostructures for Energy Conversion publication trend

The graph below shows the total number of articles in electrocatalytic nanostructures for energy conversion across all publications each year (not limited to Nature Index journals).

Technical terms

Electrocatalysis: Acceleration of electrochemical reactions at an electrode surface by a catalyst.

Mesoporosity: Presence of interconnected pores of 2–50 nm diameter within a material.

Nanoarchitectonics: Precise arrangement of atoms and nanostructures to yield targeted properties.

Template synthesis: Use of sacrificial scaffolds to define the shape and pore structure of nanomaterials.

Dealloying: Selective removal of one component from an alloy to form a porous framework.

Active site: Specific location on a catalyst surface where reactant molecules undergo chemical transformation.

References

1. Mesoporous metallic rhodium nanoparticles. Nature Communications (2017).
2. A general soft-enveloping strategy in the templating synthesis of mesoporous metal nanostructures. Nature Communications (2018).
3. Controlled Synthesis of Pt Nanowires with Ordered Large Mesopores for Methanol Oxidation Reaction. Scientific Reports (2016).
4. Dealloying Strategies for Mesoporous AuCu Nanoparticles: Impact on Internal Metallic Structure and Electrocatalytic Performance. Small Structures (2024).
5. Two-dimensional mesoporous metals: a new era for designing functional electrocatalysts. Chemical Science (2023).
6. Mesoporous PdBi nanocages for enhanced electrocatalytic performances by all-direction accessibility and steric site activation. Chemical Science (2022).