Electrocatalytic behaviour of the strontium selenide nanowires for hydrogen evolution reaction at various pH values

Iqbal, Muhammad Faisal; Yang, Yuyang; Li, Guijun; Razaq, Aamir; Zhang, Xincheng; Zhang, Meng

doi:10.1016/j.mssp.2022.106765

Cited by 6 publications

(2 citation statements)

References 66 publications

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“…The elemental spectrum of the strontium element represents the 3d orbital splitting into 3d 5/3 and 3d 3/2 at the binding energies of 133.46 and 135.28 eV, respectively. Moreover, the peaks at the binding energies of 134.41 and 136.30 eV correspond to the hydroxyl group of strontium and provide evidence of the successful synthesis of Hy-Sr(OH) 2 -200. − The elemental spectrum of the strontium element represents the 3d orbital doublet splitting into 3d 5/3 (peak A-1) and 3d 3/2 (peak A-2) with a difference of Δ V BE = 1.82 eV at the binding energies of 133.46 and 135.28 eV, respectively. A ratio of their concentration is 0.689.…”

Section: Resultsmentioning

confidence: 95%

Mesoporous Strontium Hydroxide Hydrate as a Nanostructure-Dependent Electrocatalyst for Hydrogen Evolution Reaction

Iqbal

Chen

Zhao

et al. 2022

ACS Appl. Nano Mater.

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Tremendous efforts have been directed to developing reliable electrocatalysts to gain clean hydrogen energy from water splitting and encounter energy challenges. The morphology at the nanoscale of electrocatalysts has also a significant influence on hydrogen evolution reaction. An alkaline-based electrocatalyst, strontium hydroxide hydrate, has been synthesized at temperatures of 80, 140, and 200 °C using the hydrothermal process. The employed growth temperature capably influences the morphology and intrinsic characteristics of the strontium hydroxide hydrate for the hydrogen evolution reaction. The mesoporous nature, greater electrochemical and specific surface area of nanorods, and facile proton donation by the acid jointly enhance the HER activity. Hy-Sr(OH)2-200 nanorods have exhibited a good overpotential of 84 mV in 0.5 M H2SO4 at the current density of 10 mA cm–2, which is better than the nanopallets (Hy-Sr(OH)2-80) and the hybrid morphology consisting of nanopallets and nanorods (Hy-Sr(OH)2-140). The mesoporous nature, greater electrochemical and specific surface area, and nanorod-like morphology have promoted and facilitated the adsorption and desorption of the active hydrogen atoms at the active sites inside the Hy-Sr(OH)2-200 nanorods. As a result, Hy-Sr(OH)2-200 nanorods exhibit the Tafel slope of 81 mV dec–1 in 0.5 M H2SO4 and follow the Volmer–Heyrovsky phenomena. Moreover, Hy-Sr(OH)2-200 nanorods show a good turnover frequency of 142.84 ms–1 at the fixed reversible hydrogen potential of 0.5 V, which is better than the other employed electrolytes and electrocatalysts fabricated at temperatures of 80 and 140 °C. The symmetric system, consisting of Hy-Sr(OH)2-200 nanorods, shows a good overpotential of 240 mV at a current density of 10 mA cm–2, along with a Tafel slope of 79 mV dec–1 in 0.5 M H2SO4. The electrocatalyst of Hy-Sr(OH)2-200 nanorods comprehensively exhibits good performance for the hydrogen evolution reaction.

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Section: Resultsmentioning

confidence: 95%

Mesoporous Strontium Hydroxide Hydrate as a Nanostructure-Dependent Electrocatalyst for Hydrogen Evolution Reaction

Iqbal

Chen

Zhao

et al. 2022

ACS Appl. Nano Mater.

Self Cite

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“…7 SC also possesses higher power densities, 8 good rate performance with time, needs low maintenance because it is highly durable, easily affordable because of less expensive, is safe to operate, has a good lifecycle, improvable energy density (E d ), and can charge/discharge rapidly due to their electrode materials. [9][10][11][12][13][14][15][16][17][18] On the other hand, a new type of battery called potassium ion batteries is an alternative to lithium-ion batteries. In new studies, it has been observed that potassium ion energy storage devices are an attractive option for grid-scale usage due to their excellent ionic conductivity, relatively low redox potential, abundance, and accessibility.…”

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confidence: 99%

Review—Recent Progress on MOFs-based Electrode Materials for Supercapacitor

Asghar,

Ghaly,

Awaji

et al. 2024

J. Electrochem. Soc.

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Supercapacitors are gaining popularity as energy storage devices (ESDs), and their electrode materials strongly influence their performance. There is no doubt that supercapacitors are capable and reliable ESDs for producing high power even when they operate at low energy levels. Surface modification of the materials can improve the power and energy density of the materials, which is beneficial for enhancing the electrochemical performance of the supercapacitor. During the past few years, more research has been reported to develop new electrode materials for improving the supercapacitors' energy density, charge retention, specific capacitance, stability, and rate performance. This review focuses on the execution of progressive organic-based electrode materials called metal-organic frameworks (MOFs) in the supercapacitor, which offer high electrode stability, capacity, and adjustable pore size, making them promising for electrochemical energy storage applications (supercapacitors) despite challenges. The main purpose of this review is to explain the MOFs-based electrode materials and their progress in the supercapacitor field. Because MOFs allow many attributes like multiple dimensions, additional accept ratio, and higher surface area, MOF fabrication provides stronger bonding between metal and organic linkers than traditional material, making them progressive materials for supercapacitors. Finally, the challenges and perspectives of MOFs-based electrode materials are discussed.

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Strategies to enhance the electrocatalytic behavior of metal selenides for hydrogen evolution reaction: A review

Iqbal

Gao

Mao

et al. 2023

International Journal of Hydrogen Energy

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Electrocatalytic behaviour of the strontium selenide nanowires for hydrogen evolution reaction at various pH values

Cited by 6 publications

References 66 publications

Mesoporous Strontium Hydroxide Hydrate as a Nanostructure-Dependent Electrocatalyst for Hydrogen Evolution Reaction

Mesoporous Strontium Hydroxide Hydrate as a Nanostructure-Dependent Electrocatalyst for Hydrogen Evolution Reaction

Review—Recent Progress on MOFs-based Electrode Materials for Supercapacitor

Strategies to enhance the electrocatalytic behavior of metal selenides for hydrogen evolution reaction: A review

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