Corrosion Protection Coatings and Barrier Technologies

Corrosion protection coatings and barrier technologies offer a spectrum of chemical and physical methods to prevent material degradation in corrosive environments. Passive barrier systems include organic polymers, metal oxides, sol–gel matrices and two-dimensional materials, which impart continuous films to impede ingress of moisture and ions. Active coatings embed inhibitors within tailored micro- or nano-containers, releasing them in response to pH shifts or mechanical damage. Recent advances have focused on multifunctional formulations that combine corrosion resistance with thermal conductivity, mechanical robustness and environmental compatibility. Atomic-scale barriers derived from materials such as graphene and boron nitride exploit impermeability to gases and ions, providing long-term stability under harsh conditions. Hybrid organic–inorganic coatings integrate stimuli-responsive carriers and self-healing functionalities, enabling autonomous repair and extended service life across industries ranging from infrastructure and marine engineering to microelectronics and energy.

Research from Nature Portfolio

Recent studies have demonstrated the outstanding anticorrosive performance of atomic-scale barrier coatings. A bilayer graphene coating exhibits a Janus-doping effect that confers robust protection to copper substrates at ambient and elevated temperatures for extended periods, by balancing strong interfacial coupling with galvanic corrosion suppression. Foundational work on monolayer hexagonal boron nitride films grown by chemical vapour deposition has shown one order of magnitude reduction in corrosion rates on copper surfaces, establishing the potential of two-dimensional materials as ultrathin, chemically stable barrier layers.

Corrosion Protection Coatings and Barrier Technologies publication trend

The graph below shows the total number of articles in corrosion protection coatings and barrier technologies across all publications each year (not limited to Nature Index journals).

Technical terms

Barrier coating: A continuous film applied to a substrate that physically impedes the ingress of corrosive species such as ions, moisture and gases.

Nanocarrier: A micro- or nano-scale container, often composed of polymers, inorganic particles or frameworks, for encapsulating and releasing corrosion inhibitors on demand.

Self-healing coating: A protective layer designed to autonomously repair damage by releasing healing agents or regenerating the barrier structure upon external stimuli.

Janus doping: A strategy involving differential chemical modification of adjacent layers in a multilayer structure to balance interfacial adhesion and inert surface behaviour for enhanced anticorrosion.

Metal-organic framework (MOF): A porous crystalline material formed from metal ions and organic linkers, used in coatings for high loading capacity and controlled release of active agents.

References

1. Enhanced copper anticorrosion from Janus-doped bilayer graphene. Nature Communications (2023).
2. Corrosion resistance of monolayer hexagonal boron nitride on copper. Scientific Reports (2017).
3. Cerium Methacrylate Assisted Preparation of Highly Thermally Conductive and Anticorrosive Multifunctional Coatings for Heat Conduction Metals Protection. Nano-Micro Letters (2023).
4. Advanced materials for smart protective coatings: Unleashing the potential of metal/covalent organic frameworks, 2D nanomaterials and carbonaceous structures. Advances in Colloid and Interface Science (2023).
5. Metal-Organic Framework (MOF)/Epoxy Coatings: A Review. Materials (2020).