Abstract: A method for making a metal oxyhydroxide electrocatalytic material comprises titrating a precursor solution with a (bi)carbonate salt, the precursor solution comprising a first metal salt and a solvent, wherein the titration induces reactions between the (bi)carbonate salt and the first metal salt to provide first metal carbonate species in the titrated precursor solution; and exposing the titrated precursor solution to microwave radiation to decompose the first metal carbonate species to form the metal oxyhydroxide electrocatalytic material and carbon dioxide. Mixed metal oxyhydroxide electrocatalytic materials such as nickel-iron oxyhydroxide may be formed. Also provided are the materials themselves, electrocatalytic systems comprising the materials, and methods of using the materials and systems.

Abstract: Electrodes are provided comprising a FeS2 electrocatalytic material, the FeS2 electrocatalytic material comprising FeS2 nanostructures in the form of FeS2 wires, FeS2 discs, or both, wherein the FeS2 wires and the FeS2 discs are hyperthin having a thickness in the range of from about the thickness of a monolayer of FeS2 molecules to about 20 nm. The FeS2 nanostructures may be polycrystalline comprising a non-pyrite majority crystalline phase. The FeS2 nanostructures may be in the form of FeS2 discs wherein substantially all the FeS2 discs have at least partially curved edges.

Abstract: A method for making a metal oxyhydroxide electrocatalytic material comprises titrating a precursor solution with a (bi)carbonate salt, the precursor solution comprising a first metal salt and a solvent wherein the titration induces reactions between the (bi)carbonate salt and the first metal salt to provide first metal carbonate species in the titrated precursor solution; and exposing the titrated precursor solution to microwave radiation to decompose the first metal carbonate species to form the metal oxyhydroxide electrocatalytic material and carbon dioxide. Mixed metal oxyhydroxide electrocatalytic materials such as nickel-iron oxyhydroxide may be formed. Also provided are the materials themselves, electrocatalytic systems comprising the materials, and methods of using the materials and systems.

Abstract: A method for making a metal oxyhydroxide electrocatalytic material comprises titrating a precursor solution with a (bi)carbonate salt, the precursor solution comprising a first metal salt and a solvent, wherein the titration induces reactions between the (bi)carbonate salt and the first metal salt to provide first metal carbonate species in the titrated precursor solution; and exposing the titrated precursor solution to microwave radiation to decompose the first metal carbonate species to form the metal oxyhydroxide electrocatalytic material and carbon dioxide. Mixed metal oxyhydroxide electrocatalytic materials such as nickel-iron oxyhydroxide may be formed. Also provided are the materials themselves, electrocatalytic systems comprising the materials, and methods of using the materials and systems.

Abstract: Electrodes are provided comprising a FeS2 electrocatalytic material, the FeS2 electrocatalytic material comprising FeS2 nanostructures in the form of FeS2 wires, FeS2 discs, or both, wherein the FeS2 wires and the FeS2 discs are hyperthin having a thickness in the range of from about the thickness of a monolayer of FeS2 molecules to about 20 nm. The FeS2 nanostructures may be polycrystalline comprising a non-pyrite majority crystalline phase. The FeS2 nanostructures may be in the form of FeS2 discs wherein substantially all the FeS2 discs have at least partially curved edges.

Abstract: A method for making a metal oxyhydroxide electrocatalytic material comprises titrating a precursor solution with a (bi)carbonate salt, the precursor solution comprising a first metal salt and a solvent, wherein the titration induces reactions between the (bi)carbonate salt and the first metal salt to provide first metal carbonate species in the titrated precursor solution; and exposing the titrated precursor solution to microwave radiation to decompose the first metal carbonate species to form the metal oxyhydroxide electrocatalytic material and carbon dioxide. Mixed metal oxyhydroxide electrocatalytic materials such as nickel-iron oxyhydroxide may be formed. Also provided are the materials themselves, electrocatalytic systems comprising the materials, and methods of using the materials and systems.