Hierarchical Ni–Mo–P nanoarrays toward efficient urea oxidation reaction

Li, Jing; Hu, Feng; Hei, Jinpei; Liu, Guoan; Wei, Hui; Wang, Nannan; Wei, Hehe

doi:10.1039/d2dt02983a

Cited by 8 publications

(1 citation statement)

References 42 publications

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“…It is also observed that the peaks located at 2θ = 31.98, 34.64, 36.8, and 41.68° correspond to the (040), (111), (041), and (131) facets of MoP 2 (JCPDS No. 89-2678) . The results stated above prove the successful synthesis of MoP 2 –NiCoP heterostructures.…”

Section: Resultssupporting

confidence: 54%

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP₂–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Qian,

Hu,

Zheng

et al. 2024

Inorg. Chem.

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One of the crucial parts of the electrochemically focused energy conversion and storage system is the hydrogen evolution reaction. The further exploration of electrocatalysts made of nonprecious metals could help to bring the technology closer to industrialization. Here, we present an effective hydrogen evolution reaction (HER) electrocatalyst that employs hydrothermal and phosphorization steps to create three-dimensional (3D) porous MoP 2 −NiCoP heterostructure nanosheets on nickel foam (MoP 2 − NiCoP/NF). H 2 O-dissociation and H-adsorption were effectively achieved due to the distinctive interface engineering between NiCoP and MoP 2 , which functions as a channel for immediate electron transfer. Compared to the single-component MoP 2 and NiCoP, the synergistic interaction between the heterogeneous components coupling and the 3D porous structure enables MoP 2 −NiCoP/NF to exhibit satisfactory catalytic activity with an ultralow overpotential of 50 mV at 10 mA cm −2 , which is close to the commercial Pt/C catalyst in alkaline media. More importantly, it exhibits good stability, with the ability to be electrolyzed in 1.0 M KOH electrolyte for 24 h without a significant change in overpotential. This study offers directions for the design of low-cost, high-activity, transition metal phosphides (TMPs)-based HER catalyst alternatives for future practical applications.

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Section: Resultssupporting

confidence: 54%

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP₂–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Qian,

Hu,

Zheng

et al. 2024

Inorg. Chem.

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Phosphide‐Based Electrocatalysts for Urea Electrolysis: Recent Trends and Progress

Kumar,

Bhanuse,

2024

ChemPhysChem

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Electrolysis is a trend in producing hydrogen as a fuel for renewable energy development, and urea electrolysis is considered as one of the advanced electrolysis processes, where efficient materials still need to be explored. Notably, urea electrolysis came into existence to counter‐part the electrode reactions in water electrolysis, which has hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Among those reactions, OER is sluggish and limits water splitting. Hence, urea electrolysis emerged with urea oxidation reaction (UOR) and HER as their reactions to tackle the water electrolysis. Among the explored materials, noble‐metal catalysts are efficient, but their cost and scarcity limit the scaling‐up of the Urea electrolysis. Hence, current challenges must be addressed and novel efficient electrocatalysts are to be implemented to commercialize urea electrolysis technology. Phosphides, as an efficient UOR electrocatalyst, have gained huge attention due to their exceptional lattice structure geometry. The phosphide group benefits the water molecule adsorption, and water dissociation and facilitates the oxyhydrate of the metal site. This review provides a summary of recent trends in phosphide‐based electrocatalysts for urea electrolysis, discusses synthesis strategies, and crystal structure relationship with catalytic activity, and presents the challenges of phosphide electrocatalysts in urea electrolysis.

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Superwetting molybdenum-based sulfide/phosphide heterostructures for efficient water electrolysis and solar thermoelectricity self-powered hydrogen production

Jiang

Wang

Liang

et al. 2023

Applied Surface Science

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Hierarchical Ni–Mo–P nanoarrays toward efficient urea oxidation reaction

Abstract: Urea oxidation reaction (UOR) that possesses low theoretical potential and superior kinetics is an attractive substitution to the anodic oxygen evolution reaction (OER) in overall water splitting; however, the implementation...

Cited by 8 publications

References 42 publications

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP₂–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP₂–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Phosphide‐Based Electrocatalysts for Urea Electrolysis: Recent Trends and Progress

Superwetting molybdenum-based sulfide/phosphide heterostructures for efficient water electrolysis and solar thermoelectricity self-powered hydrogen production

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Hierarchical Ni–Mo–P nanoarrays toward efficient urea oxidation reaction

Abstract: Urea oxidation reaction (UOR) that possesses low theoretical potential and superior kinetics is an attractive substitution to the anodic oxygen evolution reaction (OER) in overall water splitting; however, the implementation...

Cited by 8 publications

References 42 publications

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP2–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP2–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Phosphide‐Based Electrocatalysts for Urea Electrolysis: Recent Trends and Progress

Superwetting molybdenum-based sulfide/phosphide heterostructures for efficient water electrolysis and solar thermoelectricity self-powered hydrogen production

Contact Info

Product

Resources

About

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP₂–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP₂–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction