Aluminum-based material can scrub CO2 from coal-fired power plants’ exhaust – by Staff ( – November 6, 2022)

An international team of researchers is proposing the idea of using aluminum formate – a metal-organic framework (MOF) – to remove carbon dioxide from coal-fired power plants’ exhaust before the greenhouse gas reaches the atmosphere.

In a paper published in the journal Science Advances, the research group explains that MOFs have exhibited great potential for filtering and separating organic materials—often the various hydrocarbons in fossil fuels—from one another.

Some MOFs have shown promise at refining natural gas or separating the octane components of gasoline; others might contribute to reducing the cost of plastics manufacturing or cheaply converting one substance to another. Their capacity to perform such separations comes from their inherently porous nature.

Among them, aluminum formate – which the scientists refer to as ALF – has proven effective in separating carbon dioxide from the other gases that commonly fly out of the smokestacks of coal-fired power plants. It also lacks the shortcomings that other proposed carbon filtration materials have.

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