Porous coordination polymer and hydrogen molecule storage method, hydrogen storage device, hydrogen molecule separation method and hydrogen purifier using the same

A porous coordination polymer, wherein

• the porous coordination polymer is formed of unit lattices;
• each of the unit lattices has a shape of a cube having eight vertexes and twelve sides;
• each of the vertexes of the unit lattices consists of a Zn4O cluster;
• each of the sides of the unit lattices consists of a −OOC—C≡C—COO− group;
• and
• the inside of at least a part of the unit lattices is empty.

A method for storing hydrogen molecules, the method comprising:

• (a) bringing a gas containing hydrogen molecules into contact with a porous coordination polymer to absorb the hydrogen molecules into the inside of the porous coordination polymer;
• wherein
• the porous coordination polymer is formed of unit lattices;
• each of the unit lattices has a shape of a cube having eight vertexes and twelve sides;
• each of the vertexes of the unit lattices consists of a Zn4O cluster;
• each of the sides of the unit lattices consists of a −OOC—C≡C—COO− group;
• and
• the inside of at least a part of the unit lattices is empty.

A hydrogen storage device, comprising:

• a sealed container;
• wherein
• a porous coordination polymer is located in the sealed container;
• the porous coordination polymer is formed of unit lattices;
• each of the unit lattices has a shape of a cube having eight vertexes and twelve sides;
• each of the vertexes of the unit lattices consists of a Zn4O cluster;
• each of the sides of the unit lattices consists of a −OOC—C≡C—COO− group;
• and
• the inside of at least a part of the unit lattices is empty.

A method for separating only hydrogen molecules from a gas containing the hydrogen molecules and impurities, the method comprising:

• (a) bringing the gas into contact with a porous coordination polymer to absorb only the hydrogen molecules into the inside of the porous coordination polymer;
• wherein
• the porous coordination polymer is formed of unit lattices;
• each of the unit lattices has a shape of a cube having eight vertexes and twelve sides;
• each of the vertexes of the unit lattices consists of a Zn4O cluster;
• each of the sides of the unit lattices consists of a −OOC—C≡C—COO− group;
• and
• the inside of at least a part of the unit lattices is empty.

A hydrogen purifier, comprising:

• a sealed container;
• an inlet connected to the sealed container;
• and
• an outlet connected to the sealed container;
• wherein
• a porous coordination polymer is located in the sealed container;
• the porous coordination polymer is formed of unit lattices;
• each of the unit lattices has a shape of a cube having eight vertexes and twelve sides;
• each of the vertexes of the unit lattices consists of a Zn4O cluster;
• each of the sides of the unit lattices consists of a −OOC—C≡C—COO− group;
• and
• the inside of at least a part of the unit lattices is empty.