Optimized electroless deposition of NiCoP electrocalysts for enhanced water splitting

Battiato, Sergio; Bruno, Luca; Pellegrino, Anna Lucia; Terrasi, A.; Mirabella, S.

doi:10.1016/j.cattod.2022.10.011

Cited by 14 publications

(6 citation statements)

References 61 publications

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“…* and M-OOH*, M-OOH* finally combines with OH-to form oxygen and desorb. The specific OER reaction mechanism is shown below [68][69][70]:…”

Section: Difference Of Oxygen Evolution Reaction Mechanism Under Acid...mentioning

confidence: 99%

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

Yan,

Guo,

Tan

et al. 2024

Materials

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Water splitting is an important way to obtain hydrogen applied in clean energy, which mainly consists of two half-reactions: hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). However, the kinetics of the OER of water splitting, which occurs at the anode, is slow and inefficient, especially in acid. Currently, the main OER catalysts are still based on noble metals, such as Ir and Ru, which are the main active components. Hence, the exploration of new OER catalysts with low cost, high activity, and stability has become a key issue in the research of electrolytic water hydrogen production technology. In this paper, the reaction mechanism of OER in acid was discussed and summarized, and the main methods to improve the activity and stability of non-noble metal OER catalysts were summarized and categorized. Finally, the future prospects of OER catalysts in acid were made to provide a little reference idea for the development of advanced OER catalysts in acid in the future.

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“…* and M-OOH*, M-OOH* finally combines with OH-to form oxygen and desorb. The specific OER reaction mechanism is shown below [68][69][70]:…”

Section: Difference Of Oxygen Evolution Reaction Mechanism Under Acid...mentioning

confidence: 99%

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

Yan,

Guo,

Tan

et al. 2024

Materials

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“…Transition metal (TM)-based electrodes in combination with non-metallic elements can offer promising electrocatalytic alternatives due to their excellent electrochemical properties with the abundance on earth [ 6 , 7 , 8 ]. The TMs, i.e., Co, Fe, Ni, Mn, etc., with un-filled d-orbitals can promote excellent water electrolysis capability and alkaline media stability and, thus, can be suitable for water electrolysis systems [ 9 , 10 , 11 ]. Among them, cobalt (Co) is one of most widely studied TMs due to the high adsorption and desorption rates for the reaction intermediates of the water-splitting (WS) process [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

CoFeBP Micro Flowers (MFs) for Highly Efficient Hydrogen Evolution Reaction and Oxygen Evolution Reaction Electrocatalysts

Lin,

Habib,

Joni

et al. 2024

Nanomaterials

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Hydrogen is one of the most promising green energy alternatives due to its high gravimetric energy density, zero-carbon emissions, and other advantages. In this work, a CoFeBP micro-flower (MF) electrocatalyst is fabricated as an advanced water-splitting electrocatalyst by a hydrothermal approach for hydrogen production with the highly efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The fabrication process of the CoFeBP MF electrocatalyst is systematically optimized by thorough investigations on various hydrothermal synthesis and post-annealing parameters. The best optimized CoFeBP MF electrode demonstrates HER/OER overpotentials of 20 mV and 219 mV at 20 mA/cm2. The CoFeBP MFs also exhibit a low 2-electrode (2-E) cell voltage of 1.60 V at 50 mA/cm2, which is comparable to the benchmark electrodes of Pt/C and RuO2. The CoFeBP MFs demonstrate excellent 2-E stability of over 100 h operation under harsh industrial operational conditions at 60 °C in 6 M KOH at a high current density of 1000 mA/cm2. The flower-like morphology can offer a largely increased electrochemical active surface area (ECSA), and systematic post-annealing can lead to improved crystallinity in CoFeBP MFs.

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“…Electrochemical water splitting is a highly efficient hydrogen production technology without polluting byproducts [3,4]. Nevertheless, as one of the key reactions of water electrolysis, the oxygen evolution reaction (OER) suffers from high overpotential and sluggish reaction kinetics as a result of the complicated four-electron transfer process [5][6][7]. Currently, noble metal-based electrocatalysts, including RuO 2 and IrO 2 , are considered excellent electrocatalysts for OER [3,5,8].…”

Section: Introductionmentioning

confidence: 99%

Novel High-Entropy FeCoNiMoZn-Layered Hydroxide as an Efficient Electrocatalyst for the Oxygen Evolution Reaction

Cheng,

Han,

Han

et al. 2024

Nanomaterials

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The exploration of catalysts for the oxygen evolution reaction (OER) with high activity and acceptable price is essential for water splitting to hydrogen generation. High-entropy materials (HEMs) have aroused increasing interest in the field of electrocatalysis due to their unusual physicochemical properties. In this work, we reported a novel FeCoNiMoZn-OH high entropy hydroxide (HEH)/nickel foam (NF) synthesized by a facile pulsed electrochemical deposition method at room temperature. The FeCoNiMoZn-OH HEH displays a 3D porous nanosheet morphology and polycrystalline structure, which exhibits extraordinary OER activity in alkaline media, including much lower overpotential (248 mV at 10 mA cm−2) and Tafel slope (30 mV dec−1). Furthermore, FeCoNiMoZn-OH HEH demonstrates excellent OER catalytic stability. The enhanced catalytic performance of the FeCoNiMoZn-OH HEH primarily contributed to the porous morphology and the positive synergistic effect between Mo and Zn. This work provides a novel insight into the design of HEMs in catalytic application.

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Optimized electroless deposition of NiCoP electrocalysts for enhanced water splitting

Cited by 14 publications

References 61 publications

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

CoFeBP Micro Flowers (MFs) for Highly Efficient Hydrogen Evolution Reaction and Oxygen Evolution Reaction Electrocatalysts

Novel High-Entropy FeCoNiMoZn-Layered Hydroxide as an Efficient Electrocatalyst for the Oxygen Evolution Reaction

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