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PEM Water Electrolysis for Hydrogen Production
Release time:
2025-07-17
1. Basic Principles PEM water electrolysis for hydrogen production refers to a process that uses a proton exchange membrane (PEM) as a solid electrolyte and pure water as the raw material for water electrolysis to produce hydrogen. In short, it decomposes water molecules into hydrogen and oxygen using electrical energy, with this process facilitated by the proton exchange membrane. Hydrogen is generated on one side of the membrane, and oxygen on the other, enabling precise control of water electrolysis. Compared with traditional water pyrolysis, PEM water electrolysis technology offers advantages such as high energy efficiency, fast reaction rate, and strong economic viability. Additionally, it is more capable of matching the volatility of renewable energy power generation.
2. Application Prospects
(1) Industrial Sector
Green hydrogen produced by PEM water electrolysis can be applied in carbon-intensive industries such as ammonia synthesis, oil refining, chemicals, and steel, which helps achieve the dual-carbon goals.
(2) Transportation Sector
Hydrogen refueling stations built using PEM water electrolysis technology can produce green hydrogen on-site, which is then used in fuel cell vehicles, railways, aviation, and shipping.
(3) Energy Storage Sector
New energy power from wind, photovoltaic, and other sources is integrated into hydrogen energy storage systems to produce green hydrogen through water electrolysis. The produced hydrogen is stored in hydrogen storage tanks, and when needed, it is combined with hydrogen fuel cells to generate electricity and connect to the grid, supplying power to the grid. This helps address the issue of large-scale absorption of renewable energy.
(4) Medical Sector
Hydrogen has a strong antioxidant effect, which can help reduce the occurrence and progression of diseases such as cardiovascular and cerebrovascular diseases, liver diseases, and diabetes. It also has a good therapeutic effect on inflammatory diseases such as asthma, rheumatoid arthritis, and enteritis.
PEM water electrolysis for hydrogen production is gradually becoming a key driver in the "green hydrogen" era.
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