Ion exchange synthesis of Fe-doped clustered CoP nanowires as superior electrocatalyst for hydrogen evolution reaction

Yu, Xiaorui; Chen, Lixin; Jia, Liuyu; Feng, Lizhi; Liu, Yang; Li, Jing; Liu, Baodan

doi:10.1016/j.ijhydene.2023.01.108

Cited by 12 publications

(5 citation statements)

References 54 publications

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“…As the initial precursor, the unique structure of pre-CoP-FeP 4 /NF serves as the foundation for the high catalytic efficiency of WP/CoP-FeP 4 /NF. Figure S6 illustrates the CoP-FeP 4 /NF structure, which shows that although phosphorization treatment causes distortion and elevation in flat nanosheets on the catalyst surface, it does not alter the overall composite structure of nanosheet and nanowire . This suggests that the phosphatation process has an impact on the morphology of the material.…”

Section: Resultsmentioning

confidence: 99%

“…Figure S6 illustrates the CoP-FeP 4 /NF structure, which shows that although phosphorization treatment causes distortion and elevation in flat nanosheets on the catalyst surface, it does not alter the overall composite structure of nanosheet and nanowire. 37 This suggests that the phosphatation process has an impact on the morphology of the material. SEM images of CoP/NF and FeP 4 /NF, shown in Figures S7 and S8, respectively, clearly depict the structure of Co nanowires and Fe nanosheets.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

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Amorphous/Crystalline Nanostructured WP/CoP-FeP₄/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Meng,

Wu,

et al. 2023

ACS Appl. Nano Mater.

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Transition-metal catalysts have significant potential for achieving commercial hydrogen production from electrolytic water due to their low cost and exceptional catalytic performance in overall water splitting. The electronic structure, active sites, and reaction kinetics of the catalyst can be optimized by compounding transition metals, thereby further enhancing its catalytic activity. Here, a nonprecious metal catalyst WP/CoP-FeP 4 /NF is designed. In WP/CoP-FeP 4 /NF, the nanosheets form a regular array structure, and the nanowires grow outward from the voids of the nanosheet arrays. Additionally, a large number of nanoparticles are attached to both the surfaces of the nanowires and those of the nanosheets. The nanostructures in WP/CoP-FeP 4 /NF are small, with both nanosheet nanowires and nanoparticles being less than 200 nm in size. The acceleration of optimized electronic structure, oxygen vacancies, and interfacial engineering between the catalytic performance in overall water splitting are investigated. WP/CoP-FeP 4 /NF is evaluated for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) at current densities of 100 mA cm −2 in alkaline solutions with overpotentials as low as 128 and 244 mV. The catalytic performances of both HER and OER remained at a high level (98% for the HER and 99.83% for the OER) even after continuous operation under 100 mA cm −2 current density for up to 80 h (HER) or 46 h (OER). This work provides an idea for the design of catalysts with crystalline and amorphous heterostructures for overall water splitting at high currents.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Experimental Sectionmentioning

confidence: 99%

Amorphous/Crystalline Nanostructured WP/CoP-FeP₄/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Meng,

Wu,

et al. 2023

ACS Appl. Nano Mater.

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“…175–178 Recently, various methods, such as hydrothermal, ion-exchange, electrochemical deposition or galvanic replacement reaction, have been developed for heteroatom doping and have achieved significant progress. 12,179–182 Similar to the alloying and single-atom strategies, the doping strategy of metal Ru can achieve high-catalytic activity while saving the usage of precious Ru. In addition, the incorporation of Ru can act as a highly effective catalytic site and modulate the electronic structure of different matrices, resulting in optimal catalytic performance.…”

Section: Nanostructure Engineering Of Ru-modified Electrocatalystsmentioning

confidence: 99%

Nanostructure engineering of ruthenium-modified electrocatalysts for efficient electrocatalytic water splitting

Tong,

Chen

2024

J. Mater. Chem. A

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“…To date, transition-metal-based compounds, including sulfides, 15 phosphide, 16 and carbides, 17 have been pursued by electrocatalysts for hydrogen evolution reaction. Molybdenumbased transition metal oxide MoO 2 is a metal-semiconductor with a twisted rutile structure, 18 which has significant metal properties and high conductivity.…”

Section: ■ Introductionmentioning

confidence: 99%

Efficient Hydrogen Production over Molybdenum Tungsten Bimetallic Oxide NF/PMo_nW_12–n Catalyst on Nickel Foam

Zhao,

Li,

et al. 2024

Langmuir

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Developing inexpensive, efficient, and stable catalysts is crucial for reducing the cost of electrolytic hydrogen production. Recently, polyoxometalates (POMs) have gained attention and widespread use due to their excellent electrocatalytic properties. This study designed and synthesized three composite materials, NF/PMo n W 12−n , by using phosphomolybdic-tungstic heteropolyacids as precursors to grow in situ on nickel foam via the hydrothermal process and subsequent calcination. Then, their catalytic performances are systematically investigated. This work demonstrates that the NF/PMo n W 12−n catalysts generate more low valent oxides under the synergistic effect of Mo and W, further enhancing activity for hydrogen evolution reaction (HER). Among these electrocatalysts, NF/PMo 6 W 6 exhibits the perfect HER performance, η 10 is only 74 mV. It also shows great stability during long-term electrolysis. The current study introduces a fresh approach for producing electrocatalysts that are both cost-effective and highly efficient.

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Ion exchange synthesis of Fe-doped clustered CoP nanowires as superior electrocatalyst for hydrogen evolution reaction

Cited by 12 publications

References 54 publications

Amorphous/Crystalline Nanostructured WP/CoP-FeP₄/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Amorphous/Crystalline Nanostructured WP/CoP-FeP₄/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Nanostructure engineering of ruthenium-modified electrocatalysts for efficient electrocatalytic water splitting

Efficient Hydrogen Production over Molybdenum Tungsten Bimetallic Oxide NF/PMo_nW_12–n Catalyst on Nickel Foam

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Ion exchange synthesis of Fe-doped clustered CoP nanowires as superior electrocatalyst for hydrogen evolution reaction

Cited by 12 publications

References 54 publications

Amorphous/Crystalline Nanostructured WP/CoP-FeP4/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Amorphous/Crystalline Nanostructured WP/CoP-FeP4/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Nanostructure engineering of ruthenium-modified electrocatalysts for efficient electrocatalytic water splitting

Efficient Hydrogen Production over Molybdenum Tungsten Bimetallic Oxide NF/PMonW12–n Catalyst on Nickel Foam

Contact Info

Product

Resources

About

Amorphous/Crystalline Nanostructured WP/CoP-FeP₄/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Amorphous/Crystalline Nanostructured WP/CoP-FeP₄/NF Heterojunctions for Efficient Electrocatalytic Overall Water Splitting

Efficient Hydrogen Production over Molybdenum Tungsten Bimetallic Oxide NF/PMo_nW_12–n Catalyst on Nickel Foam