Transformation of microwave synthesized highly uniform FeMo-MIL-88B nanorod to oxynitride derivate for overall water splitting reaction

Oxygen Electrocatalysis by Transition Metal Nitrides: History, Current Trends and Future Prospects

“…For instance, Choi et al proposed the construction of a novel 3D rod-shaped porous ironmolybdenum oxynitride (FeMoON) as a distinctive electrocatalytic material for OER in an alkaline medium. [109] Toward OER, the FeMoON affords a high current density of 850 mA cm À 2 at a mere 364 mV overpotential. In another report, Wang et al observed that Ni 3 FeN is unstable and would be converted partially into NiFeOOH under oxygen-evolution conditions, forming a NiFeOOH/Ni 3 FeN/Ni heterojunction.…”

“…For instance, Choi et al. proposed the construction of a novel 3D rod‐shaped porous iron‐molybdenum oxynitride (FeMoON) as a distinctive electrocatalytic material for OER in an alkaline medium [109] . Toward OER, the FeMoON affords a high current density of 850 mA cm −2 at a mere 364 mV overpotential.…”

“…Increasing reports claim that TMNs as highly-efficient OER catalysts; however, current studies showed that TMNs act as pre-catalysts/scaffolds to induce OER-active (oxy) hydroxide generation during the electrochemical process. [33,109,110] This is because of their instability under aqueous and oxidizing environments. Of course, this does not mean TMNs are not worth exploring in OER electrocatalysis.…”

Electrocatalytic hydrogen evolution of MOF-derived materials based on conjugated or unconjugated ligands

“…4 Hydrogen energy, which combines the above advantages, is highly sought after for its high energy density and pollutionfree oxidation product water; therefore, it is considered the most ideal substitute for chemical fuels. [5][6][7] The electrolysis of water to produce hydrogen is one of the common methods used for obtaining hydrogen. [8][9][10] This method has two problems: high overpotential and slow kinetic reaction.…”

Improved the Electrocatalytic Hydrogen Evolution Performances of Co-MOF Derivatives Through Introducing Zinc Ions by Two Ways

“…Accompanied by the continuous use of conventional fossil fuels, human beings are not only facing the problem of environmental pollution but also the depletion of fossil energy. − Therefore, the demand for clean energy is increasing. Hydrogen energy is widely concerned as renewable clean energy with high energy and environmental friendliness. − At present, electrolysis of water is widely considered as one of the effective methods to produce hydrogen and oxygen, − but as a half-reaction of electrolysis of water, the overpotential of the hydrogen evolution reaction (HER) is very large, which causes the application of water splitting to be restricted. − For some noble metal catalysts, like platinum, the Gibbs free energy approaches zero, which is very conducive to the HER, but they are expensive and abundance is very low. , Hence, it is essential to develop nonprecious metal-based HER catalysts with simple synthesis, low cost, and high efficiency. , Recently, metal–organic frameworks (MOFs) have been used as precursors of carbon electrocatalysts. Because of its high specific surface area and adjustable pore size, MOF is a good electrocatalyst precursor for the HER. − At present, the more common MOF-derived electrocatalysts are nonprecious catalysts, such as Co, Mo, Ni, and Zn. − To improve the performance of these electrocatalysts, researchers have adopted many methods, such as doping with nonmetallic elements and metal elements. − Therefore, in this paper, a new Co-MOF was synthesized by a simple solvothermal method, then, the Co-MOF was introduced into a Zn ion, and finally, a cobalt/zinc bimetallic carbon nanocomposite was obtained.…”