Storing electrons from hydrogen for clean chemical reactions

Researchers from Kyushu University have developed a hydrogen energy carrier to address some of the biggest hurdles in the path toward a sustainable hydrogen economy. As explained in a paper published in JACS Au, this novel ...

Chemical substance

cept

A chemical substance is a material with a specific chemical composition.

A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Some typical chemical substances are diamond, gold, salt (sodium chloride) and sugar (sucrose). Generally, chemical substances exist as a solid, liquid, or gas, and may change between these phases of matter with changes in temperature or pressure. Chemical reactions convert one chemical substance into another.

Forms of energy, such as light and heat, are not considered to be matter, and thus they are not "substances" in this regard.

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