Iron Zeolitic Imidazolate Framework (ZIF), production method thereof and nanocomposite derived from same
AssigneeUnversitat de Valencia
InventorsGUILLERMO MINGUEZ ESPALLARGAS, JAVIER LOPEZ CABRELLES, JORGE ROMERO PASCUAL, EUGENIO CORONADO MIRALLES
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Abstract
An electrocatalyst, more specifically an electrocatalyst derived from metal-organic framework is provided. An iron zeolitic imidazolate framework, the process for producing it, a graphite carbon nanocomposite containing it and iron nanoparticles, as well as the process for obtaining said nanocomposite from the iron zeolitic imidazolate framework are disclosed herein. Use of the nanocomposite as a catalyst is also disclosed.
Claims48
A zeolitic framework comprising the general structure A-B-A wherein A is iron, and B is a compound of formula I
- wherein R1, R2 and R3 are independently hydrogen, C1-4 alkyl, halo, cyano, or nitro, wherein when R2 and R3 are C1-4 alkyl, R2 and R3 may be (are optionally) joined together to form a ring comprising 3 to 7 carbons.
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A nanocomposite, comprising:
- a graphite carbon matrix and between 0.1 and 3% by weight of iron nanoparticles with respect to the total weight of the nanocomposite,
- wherein said iron nanoparticles have a diameter of between 1 and 60 nm,
- wherein said nanocomposite comprises between 70 and 95% by weight of carbon, between 3 and 20% by weight of oxygen, and between 0.2 and 5% by weight of nitrogen with respect to the total weight of the nanocomposite,
- and wherein said nanocomposite has a current density in the oxygen evolution reaction (OER) greater than 200 mA/cm2 in KOH 1M.
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Dependencies are inferred from the claim text.