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Peer-reviewedCC BYChemSusChem

Emerging Decoupled Water Electrolysis for Green Hydrogen Production: Current Progress and Future Roadmap.

  • Anindita Chakraborty1
  • Bokinala Moses Abraham2
  • Joydeep Dutta3
  • Ujjwal Pal1
  1. 1Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.
  2. 2School of Chemistry, University of Leeds, Leeds, UK.
  3. 3Functional Nanomaterials Group, Department of Applied Physics, KTH Royal Institute of Technology, Stockholm, Sweden.
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Abstract

Decoupled water electrolysis (DWE) offers a unique strategy for green hydrogen production by separating the hydrogen and oxygen evolution reactions either in time or space, with the potential for integration to intermittent renewable energy sources. This review highlights the critical assessment of DWE, including the different components used and the operational strategies to accelerate the hydrogen economy. Special emphasis is placed on redox mediator engineering, catalyst innovation, membranes, and next-generation cell architectures to overcome current limitations associated with conventional electrolyzers including efficiency, stability, and cost. The in silico approaches, including density functional theory and molecular dynamics-driven parameter optimization can accelerate DWE by bridging the gap between lab-scale technology development and industrial scale-up, thereby facilitating the rise of DWE as one of the next-generation technologies for green hydrogen production. A visionary roadmap is proposed, showing the pathway from proof-of-concept laboratory studies toward market deployment, with the aim of recognizing DWE as a cornerstone technology for a sustainable, low-carbon hydrogen future. The review is conceptualized based on literature survey and identified research gaps.

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Cite

BibTeXRIS
BibTeX
@article{chakraborty2026emerging,
  title = {{Emerging Decoupled Water Electrolysis for Green Hydrogen Production: Current Progress and Future Roadmap.}},
  author = {Anindita Chakraborty and Bokinala Moses Abraham and Joydeep Dutta and Ujjwal Pal},
  journal = {ChemSusChem},
  year = {2026},
  month = oct,
  doi = {10.1002/cssc.71166},
  url = {https://europepmc.org/article/MED/42921830},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Emerging Decoupled Water Electrolysis for Green Hydrogen Production: Current Progress and Future Roadmap.
AU  - Anindita Chakraborty
AU  - Bokinala Moses Abraham
AU  - Joydeep Dutta
AU  - Ujjwal Pal
PY  - 2026
DA  - 2026/10/01
JO  - ChemSusChem
DO  - 10.1002/cssc.71166
UR  - https://europepmc.org/article/MED/42921830
AB  - Decoupled water electrolysis (DWE) offers a unique strategy for green hydrogen production by separating the hydrogen and oxygen evolution reactions either in time or space, with the potential for integration to intermittent renewable energy sources. This review highlights the critical assessment of DWE, including the different components used and the operational strategies to accelerate the hydrogen economy. Special emphasis is placed on redox mediator engineering, catalyst innovation, membranes, and next-generation cell architectures to overcome current limitations associated with conventional electrolyzers including efficiency, stability, and cost. The in silico approaches, including density functional theory and molecular dynamics-driven parameter optimization can accelerate DWE by bridging the gap between lab-scale technology development and industrial scale-up, thereby facilitating the rise of DWE as one of the next-generation technologies for green hydrogen production. A visionary roadmap is proposed, showing the pathway from proof-of-concept laboratory studies toward market deployment, with the aim of recognizing DWE as a cornerstone technology for a sustainable, low-carbon hydrogen future. The review is conceptualized based on literature survey and identified research gaps.
SN  - 1864-5631
SN  - 1864-564X
ER  -