selectspec writes: Despite being the most abundant element in the universe, creating Hydrogen gas here on Earth is a relatively expensive process. While Hydrogen can be cheaply produced from hydrocarbons like natural gas, extracting it from water has proved tricky with most methods being rather inefficient and impractical. Some new research has emerged involving a process involves nano-materials made out of rust (iron oxide) immersed in water exposed to sunlight. The process is 15% efficient in terms of capturing the solar energy, which isn't bad considering current generation photovoltaic solar panels operate around 20% efficiency.
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