Interface engineering of NiMoSx heterostructure nanorods for efficient oxygen evolution reaction

Mao, Xiaoqing; Shen, Pei Kang

doi:10.1016/j.jcis.2022.07.157

Cited by 8 publications

(4 citation statements)

References 58 publications

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“…As a result, these results verify that B doping can efficiently enhance the catalytic performance of B–Co/Co 2 P, making it a promising OER electrode, even comparable to state-of-the art OER electrocatalysts reported recently (Figure c and Table S1). ,− Figure d presents the Tafel plots of B–Co/Co 2 P and Co/Co 2 P, and both of them possess a similar Tafel slope of 79.56 mV dec –1 , indicating that the boron doping did not change the reaction kinetics of the interfacial electrocatalysts. To explore the effect of B doping, electrochemical impedance spectroscopy was furthermore carried out to evaluate the interfacial charge transfer at the electrocatalysts and electrolytes.…”

Section: Resultsmentioning

confidence: 96%

Elemental Charge Engineering in Cobalt and Cobalt–Phosphide Interface for Enhanced Oxygen Evolution and Urea Oxidation Reactions

Ding,

Xiang,

Wan

et al. 2024

ACS Appl. Energy Mater.

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The development of cost-effective electrocatalysts with high performance for oxygen evolution and urea oxidation reaction (OER/UOR) is desirable but remains a great challenge. Here, we report a facile strategy for boron-doping cobalt and cobalt−phosphide interfacial electrocatalysts (B− Co/Co 2 P) for bifunctional OER/UOR. By virtue of B doping, the abundant exposed active sites as well as enhanced electrical conductivity can efficiently improve charge migration of the heterogeneous interfacial sites. Therefore, the obtained B−Co/Co 2 P electrocatalysts exhibit bifunctional OER/UOR activities with an outstanding overpotential of 284 and 107 mV at an industrial current density of 100 mA cm −2 , respectively. Such an excellent catalytic performance is attributed to the fact that the B dopant adjusts the electron distribution of interfacial catalytic sites and optimizes the adsorption/desorption of reaction intermediate species, as well as reduces the energy barriers of water oxidation. Furthermore, the setup two-electrode cell requires merely overpotentials of 280.7 and 56.9 mV to drive 10 mA cm −2 with robust stability in water splitting and urea electrolysis, respectively. Overall, this report provides a strategy to construct bifunctional OER/UOR catalysts with high efficiency for hydrogen generation.

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Section: Resultsmentioning

confidence: 96%

Elemental Charge Engineering in Cobalt and Cobalt–Phosphide Interface for Enhanced Oxygen Evolution and Urea Oxidation Reactions

Ding,

Xiang,

Wan

et al. 2024

ACS Appl. Energy Mater.

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“…The strong interaction, coordination effect, synergistic effect, and limited domain effect at the interface have a great influence on the activity and stability of the catalyst. The interface structure is usually formed between two or more different components and can theoretically be used as a transport channel for electrons or intermediates between different components [ 79 , 80 , 81 ]. The physical and chemical properties of electrocatalysts can be regulated by reasonably controlling the interfacial atomic arrangement, which has a great impact on the electrocatalytic performance.…”

Section: General Strategies and Progress In Regulating The Performanc...mentioning

confidence: 99%

Recent Advances in Manganese-Based Materials for Electrolytic Water Splitting

Zhou

Liu

et al. 2023

IJMS

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Developing earth-abundant and highly effective electrocatalysts for electrocatalytic water splitting is a prerequisite for the upcoming hydrogen energy society. Recently, manganese-based materials have been one of the most promising candidates to replace noble metal catalysts due to their natural abundance, low cost, adjustable electronic properties, and excellent chemical stability. Although some achievements have been made in the past decades, their performance is still far lower than that of Pt. Therefore, further research is needed to improve the performance of manganese-based catalytic materials. In this review, we summarize the research progress on the application of manganese-based materials as catalysts for electrolytic water splitting. We first introduce the mechanism of electrocatalytic water decomposition using a manganese-based electrocatalyst. We then thoroughly discuss the optimization strategy used to enhance the catalytic activity of manganese-based electrocatalysts, including doping and defect engineering, interface engineering, and phase engineering. Finally, we present several future design opportunities for highly efficient manganese-based electrocatalysts.

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“…[9][10][11][12] However, achieving low-cost and highly efficient catalysts is still a challenge for hydrogen production via the electrolysis of water [13][14][15] because, presently, the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) mainly depend on noble metals and noble-metal oxide catalysts, respectively. 16,17 Hence, the development of nonprecious metal catalysts is crucial. [18][19][20] An excellent OER catalyst should have the following characteristics: low internal resistance, rich active sites, suitable adsorption and desorption energy, low overpotential, and excellent stability; these characteristics are possessed by precious metal catalysts.…”

Section: Introductionmentioning

confidence: 99%

NiFeLDH/Mo_4/3B_2−xT_z/NF composite electrodes to enhance oxygen evolution performance

Xu,

Yang,

et al. 2024

J. Mater. Chem. A

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Interface engineering of NiMoSx heterostructure nanorods for efficient oxygen evolution reaction

Cited by 8 publications

References 58 publications

Elemental Charge Engineering in Cobalt and Cobalt–Phosphide Interface for Enhanced Oxygen Evolution and Urea Oxidation Reactions

Elemental Charge Engineering in Cobalt and Cobalt–Phosphide Interface for Enhanced Oxygen Evolution and Urea Oxidation Reactions

Recent Advances in Manganese-Based Materials for Electrolytic Water Splitting

NiFeLDH/Mo_4/3B_2−xT_z/NF composite electrodes to enhance oxygen evolution performance

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Interface engineering of NiMoSx heterostructure nanorods for efficient oxygen evolution reaction

Cited by 8 publications

References 58 publications

Elemental Charge Engineering in Cobalt and Cobalt–Phosphide Interface for Enhanced Oxygen Evolution and Urea Oxidation Reactions

Elemental Charge Engineering in Cobalt and Cobalt–Phosphide Interface for Enhanced Oxygen Evolution and Urea Oxidation Reactions

Recent Advances in Manganese-Based Materials for Electrolytic Water Splitting

NiFeLDH/Mo4/3B2−xTz/NF composite electrodes to enhance oxygen evolution performance

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NiFeLDH/Mo_4/3B_2−xT_z/NF composite electrodes to enhance oxygen evolution performance