Significant efforts have been dedicated to phase

The gap

Evidence profile

Sourced from the abstract and stated research gap and stated challenges of the source papers, classified as general, drawn from work published between 2024 and 2026, spanning 3 journals. Those papers have been cited 242 times in total.

Supporting evidence — 5 representative gaps

• One‐pot synthesis of PtNi /carbon composites derived from polytetrahydrofuran for bifunctional alkaline HER and ORR (2026) · Bulletin of the Korean Chemical Society · doi

  The resulting catalyst delivers efficient alkaline HER and, importantly, sustains hydrogen evolution deep into the high‐current‐density regime with strong operational durability, addressing a key limitation of many PtNi‐based catalysts commonly evaluated only at low currents.

  generalabstractevidence 5/5
  Keywords: resulting catalyst delivers efficient alkaline importantly sustains hydrogen evolution deep high current density regime strong
• Crystal Phase Engineering Accelerates Hydrogen Reverse Spillover for Efficient Alkaline Hydrogen Production (2026) · Nano-Micro Letters · doi

  While significant efforts have been dedicated to phase regulation of active metals, the role of crystal phase of catalyst supports in steering the hydrogen migration during hydrogen evolution reaction (HER) remains underexplored.

  generalabstractevidence 5/5
  Keywords: phase hydrogen significant efforts dedicated regulation active metals role crystal catalyst supports steering migration evolution
• Oxophilic Ce single atoms-triggered active sites reverse for superior alkaline hydrogen evolution (2024) · Nature Communications · cited 121× · doi

  The state-of-the-art alkaline hydrogen evolution catalyst has a serious problem that hydrogen evolution primarily proceeds on the less active ruthenium single atoms instead of the more efficient small ruthenium nanoparticles. There is a need to develop a new catalyst that can improve the hydrogen evolution activity.

  generalstated research gapevidence 5/5
  Keywords: state-of-the-art alkaline hydrogen evolution catalyst has serious problem
• Oxophilic Ce single atoms-triggered active sites reverse for superior alkaline hydrogen evolution (2024) · Nature Communications · cited 121× · doi

  The less active ruthenium single atoms instead of the more efficient small ruthenium nanoparticles are used for hydrogen evolution. The strong oxophilicity of cerium needs to be utilized to drive the alkaline hydrogen evolution centers to the more active ruthenium nanoclusters.

  generalstated challengesevidence 5/5
  Keywords: less active ruthenium single atoms instead efficient small
• Proton shuttling at electrochemical interfaces under alkaline hydrogen evolution (2026) · Nature Communications · doi

  The mechanism of the hydrogen evolution reaction in alkaline media remains less understood than in acidic conditions. The role of alkali metal cations in water dissociation is unclear. There is a lack of molecular-level insights into the hydrogen evolution reaction in alkaline media.

  generalstated research gapevidence 5/5
  Keywords: mechanism hydrogen evolution reaction alkaline media remains less

Questions about this gap