The hydrogen evolution reaction (HER) and oxygen

The gap

Evidence profile

Sourced from the abstract and stated research gap of the source papers, classified as general, drawn from work published between 2020 and 2026, spanning 5 journals. Those papers have been cited 155 times in total.

Supporting evidence — 5 representative gaps

• A Straightforward Model for Quantifying Local pH Gradients Governing the Oxygen Evolution Reaction (2024) · Journal of the American Chemical Society · cited 44× · doi

  Whereas local pH environments have been observed and characterized in reductive half-reactions, including the CO 2 reduction and hydrogen evolution reactions, the incompatibility of conventional techniques and materials has limited studies in oxidative half-reactions, including the oxygen evolution reaction (OER), which provides the reducing equivalents for solar-to-fuels electrolysis.

  generalabstract
  Keywords: reactions half including evolution local environments observed characterized reductive reduction hydrogen incompatibility conventional techniques materials
• The Corrosive Cl–-Induced Rapid Surface Reconstruction of Amorphous NiFeCoP Enables Efficient Seawater Splitting (2024) · ACS Catalysis · cited 84× · doi

  Limited by the violent oxidation and corrosion environment of the oxygen evolution reaction (OER) in seawater electrolysis, the design of catalysts with high activity and stability is crucial for improving the hydrogen production performance of the electrolysis cell.

  generalabstractevidence 5/5
  Keywords: electrolysis limited violent oxidation corrosion environment oxygen evolution reaction seawater design catalysts high activity stability
• Recent Advances in Electrochemical Water Splitting and Reduction of CO2 into Green Fuels on 2D Phosphorene‐Based Catalyst (2020) · Energy Technology · cited 27× · doi

  However, the application of 2D phosphorene‐based catalyst in the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), reduction of CO 2 into green fuels, and the nitrogen electroreduction reaction (N 2 RR) have not been explored further.

  generalabstractevidence 5/5
  Keywords: reaction evolution application phosphorene based catalyst hydrogen oxygen reduction green fuels nitrogen electroreduction explored further
• A novel method to fabricate Ni(OH) 2 /Ni(OOH) nanoflakes doped Cu 2 O@CuO core-shell nanomaterials using Cu 2 O nanocrystals as a template for electrochemical oxygen evolution reaction in alkaline solutions (2026) · Arabian Journal of Chemistry · doi

  The hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are still challenging. There is a need for sustainable green energy sources to reduce overconsumption of fossil fuels and mitigate environmental pollution.

  generalstated research gapevidence 5/5
  Keywords: hydrogen evolution reaction her oxygen oer still challenging
• Decoupling charge‒discharge electrolysis for hydrogen evolution and organic oxidation reactions (2026) · Nature Communications · doi

  The limitations of coupled electrolysis systems, such as compromised catalyst stability and product selectivity. The need for a decoupled electrolysis strategy to optimize the hydrogen evolution reaction paired with valuable chemical synthesis. The requirement for a universally applicable design for other OORs-paired reduction systems.

  generalstated research gapevidence 5/5
  Keywords: limitations coupled electrolysis systems compromised catalyst stability product

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