Boosting electrocatalytic water splitting via metal-metalloid combined modulation in quaternary Ni-Fe-P-B amorphous compound

Tang, Wukui; Liu, Xiaofang; Li, Ya; Pu, Yanhui; Lu, Yao; Song, Zhiming; Wang, Qiang; Yu, Ronghai; Shui, Jianglan

doi:10.1007/s12274-020-2627-x

Cited by 89 publications

(38 citation statements)

References 68 publications

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“…It is quite challenging to distinguish and confirm the metal‐phosphorus coordination, which is usually characterized by a combination of several spectroscopy techniques [53] . X‐ray photoelectron spectroscopy (XPS) is used to analyze the chemical states of each element [54] . The XPS spectra of phosphorus can be deconvoluted into five major components at binding energies of 129 eV∼130.6 eV (assigned to P−M), [15,24,26] 132.1 eV∼132.9 eV (assigned to P−C), 133.3 eV∼133.8 eV (assigned to P−O), ∼134.2 eV (assigned to P−O−M) and ∼135.5 eV (assigned to PO 3 − ) [10,47] .…”

Section: Active Site Identificationmentioning

confidence: 99%

Recent Advances in Phosphorus‐Coordinated Transition Metal Single‐Atom Catalysts for Oxygen Reduction Reaction

et al. 2020

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Carbon‐supported heteroatom‐coordinated metal single‐atom catalysts (SACs) are promising electrocatalysts for oxygen reduction reaction (ORR) due to their low cost and tunable catalytic activity. Adjusting the electronic structure of the active center is an effective way to improve the activity of SACs. Compared with the intensively studied nitrogen‐coordinated transition metal atoms (e. g. Fe, Co and Mn), phosphorus‐coordinated and nitrogen‐phosphorus dual‐coordinated ones exhibit different electronic structures, which changes the reaction energy barrier and enhances the catalytic activity. This review summarizes recent advances in phosphorus coordination SACs for ORR in terms of theoretical study, site structure determination, synthesis method and catalytic activity. Further research is called for to explore the precise synthesis of phosphorus coordination SACs in a controllable manner and check the SACs under actual working conditions.

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Section: Active Site Identificationmentioning

confidence: 99%

Recent Advances in Phosphorus‐Coordinated Transition Metal Single‐Atom Catalysts for Oxygen Reduction Reaction

et al. 2020

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“…[28][29][30] For instance, in metal borides, B donates electrons to Co while in metal phosphides, Co donates electrons to P. This opposing electron transfer mechanism in metal borides and phosphides, when combined in a PB, generates metal sites with an optimal electronic density for interaction with reactants and products. [29][30][31] Although this characteristic of a single-metal PB is established, the synergistic effect created by presence of multi-metals in PBs has been seldom investigated.…”

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confidence: 99%

Alkaline Water Oxidation Using a Bimetallic Phospho‐Boride Electrocatalyst

et al. 2020

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New oxygen evolution reaction (OER) electrocatalysts based on low‐cost elements, which set new benchmark levels of activity, are vital if water electrolysis is to be applied on a global scale. Herein, a low‐cost bimetallic phospho‐boride catalyst was developed that showed outstanding OER activity of approximately 195 mV to achieve 10 mA cm−2 in alkaline water electrolysis, with a minimal catalyst loading of 0.3 mg cm−2. The contrasting electron transfer property of the metal borides and phosphides when combined in phospho‐boride modulated the electron density of the Co atom, yielding highly active CoOOH species at lower potentials. The addition of Mo at low levels further enhanced the activity by increasing the surface area and by formation of nano‐crystalline domains. The combined contributions from each of the components resulted in a new benchmark mass activity of 666 A g−1 at 300 mV overpotential. This work presents a new avenue towards fabricating electrode materials with exceptional performances.

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“…The impressive earth‐abundant bifunctional materials for overall water splitting include the transition metal hydroxides (and oxides), [2a,3] chalcogenides, [4] phosphides, [5] borides [6] and their hybrids [6,7] . Some significant advances have been made on the syntheses of these catalysts that allow access to highly nanostructured materials.…”

Section: Introductionmentioning

confidence: 99%

“…The interwoven NiS/NiS 2 structure was synthesized by one step thermal sulfidation at 400–500 °C under Ar atmosphere for 2 h [4a] . The Ni−Fe−P−B nanoparticles were synthesized by wet‐chemical reduction under nitrogen protection and vigorously mechanical stirring [6] . The heterostructures of MoS 2 /Ni 3 S 2 were prepared using a nickel foam and (NH 4 ) 2 MoS 4 through a one‐pot solvothermal reaction in N , N ‐dimethylformamide at 200 °C for 12 h [7a] .…”

Section: Introductionmentioning

confidence: 99%

High‐Performance Bifunctional Ni−Fe−S Catalyst in situ Synthesized within Graphite Intergranular Nanopores for Overall Water Splitting

Yang

Yang³

et al. 2021

ChemSusChem

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Low‐cost and efficient bifunctional catalysts are urgently needed for overall water splitting used in large‐scale energy storage. In this study, we develop a nickel and iron (di)sulfide (Ni−Fe−S) composite catalyst that is in situ synthesized and fixed within the intergranular nanopores inside high pure polycrystalline graphite. Two precursor solutions (reactants) may permeate the graphite intergranular pores to a depth of more than 3.5 mm. The nanoscale pores serve as an array of nanoreactors for the synthesis of the Ni−Fe−S nanoparticles under conditions much milder than usual. The prepared catalyst efficiently catalyzes both the hydrogen and oxygen evolution reactions (HER and OER) in 1.0 M KOH. It delivers a current density of 400 mA cm−2 at a full cell voltage of around 2.3 V without considerable activity decay over 24 h electrolysis. The active species of the catalyst are different for the HER and OER and discussed accordingly. The synthesis strategy based on the nanopores in a monolithic conductive substrate proves to be a simple, efficient, and promising way to prepare electrocatalysts that are cheap, abundant, and industrially attractive.

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Boosting electrocatalytic water splitting via metal-metalloid combined modulation in quaternary Ni-Fe-P-B amorphous compound

Cited by 89 publications

References 68 publications

Recent Advances in Phosphorus‐Coordinated Transition Metal Single‐Atom Catalysts for Oxygen Reduction Reaction

Recent Advances in Phosphorus‐Coordinated Transition Metal Single‐Atom Catalysts for Oxygen Reduction Reaction

Alkaline Water Oxidation Using a Bimetallic Phospho‐Boride Electrocatalyst

High‐Performance Bifunctional Ni−Fe−S Catalyst in situ Synthesized within Graphite Intergranular Nanopores for Overall Water Splitting

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