Published: Jan. 1, 2024
Language: Английский
Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 3, 2025
Hydrogen produced with no greenhouse gas emissions is termed "green hydrogen" and will be essential to reaching decarbonization targets set forth by nearly every country as per the Paris Agreement. Proton exchange membrane water electrolyzers (PEMWEs) are expected contribute substantially green hydrogen market. However, PEMWE market penetration insignificant, accounting for less than a gigawatt of global capacity. Achieving substantive via require PEMWEs reach capacities hundreds gigawatts 2030. This paper serves an overarching roadmap cell-level improvements necessary gigawatt-scale deployment, insights from three well-established technology companies included. Analyses presented economies scale, renewable energy prices, government policies, accelerated stress tests, component-specific improvements.
Language: Английский
Citations
6
SusMat, Journal Year: 2024, Volume and Issue: 4(4)
Published: July 18, 2024
Abstract Hydrogen is a favored alternative to fossil fuels due the advantages of cleanliness, zero emissions, and high calorific value. Large‐scale green hydrogen production can be achieved using proton exchange membrane water electrolyzers (PEMWEs) with utilization renewable energy. The porous transport layer (PTL), positioned between flow fields catalyst layers (CLs) in PEMWEs, plays critical role facilitating water/gas transport, enabling electrical/thermal conduction, mechanically supporting CLs membranes. Superior corrosion resistance essential as PTL operates acidic media oxygen saturation working potential. This paper covers development high‐performance titanium‐based PTLs for PEMWEs. heat/electrical conduction mass mechanisms how they affect overall performances are reviewed. By carefully designing controlling substrate microstructure, protective coating, surface modification, performance regulated optimized. two‐phase characteristics enhanced by fine‐tuning microstructure wettability PTL. addition microporous top‐layer effectively improve PTL|CL contact increase availability catalytic sites. anticorrosion coatings, which crucial chemical stability conductivity PTL, compared analyzed terms composition, fabrication, performance.
Language: Английский
Citations
10
International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 103, P. 310 - 326
Published: Jan. 18, 2025
Language: Английский
Citations
0
International Journal of Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 244, P. 126889 - 126889
Published: March 15, 2025
Language: Английский
Citations
0
Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(5), P. 054501 - 054501
Published: April 22, 2024
Optimization of proton exchange membrane water electrolyzers (PEMWE) has become a focus researchers looking for reliable way to generate power. A vital component PEMWE operation is the porous transport layer (PTL) on anode side, which where oxygen produced. The PTL must allow access catalyst and remove simultaneously. In this work, previously developed imaging technique used bilayer structures. multiscale modeling approach was study effect evolution performance. First, micro scale model predict pathways through different Results showed that results in higher saturation faster PTL. Second, macro performance using PTLs. Predictions potential values between 10 20 mV below single values. This points improving operation. Findings from work show how addition mesoporous substrate will improve removal surface,
Language: Английский
Citations
1
Published: Jan. 1, 2024
Language: Английский
Citations
0