Manganese oxide coated TiO2 nanotube-based electrode for efficient and selective electrocatalytic sulfide oxidation to colloidal sulfur

Sergienko, N. V.; Radjenović, Jelena

doi:10.1016/j.apcatb.2021.120383

Cited by 15 publications

(2 citation statements)

References 66 publications

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“…For this reason, interest in the synthesis of Mn ion complexes to study their structural, chemical, electrochemical and oxidative properties has developed and continues to grow [5][6][7]. However, the problems of separating the catalyst from the reaction products and regenerating its active form are causing research to shift from homogeneous catalysis toward heterogeneous catalysis and electrocatalysis [8][9][10][11][12][13][14]. Catalysts are immobilized in inorganic materials [10] and in polymers [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…However, the problems of separating the catalyst from the reaction products and regenerating its active form are causing research to shift from homogeneous catalysis toward heterogeneous catalysis and electrocatalysis [8][9][10][11][12][13][14]. Catalysts are immobilized in inorganic materials [10] and in polymers [11,12]. This is a step toward increasing mediator stability and developing electrochemical sensors [14].…”

Section: Introductionmentioning

confidence: 99%

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Modification of Glassy Carbon Electrodes with Complexes of Manganese(II) with Some Phenanthroline Derivatives Immobilized in Nafion Layer

Tomczyk,

Seliger

2024

IJMS

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Manganese(II) complexes with phenanthroline derivatives modified with different substituents were synthesized and incorporated into Nafion layers covering the surfaces of glassy carbon electrodes and were studied electrochemically. Formal potentials and apparent diffusion coefficients were calculated and discussed. The suitability for electrocatalytic oxidation of ascorbic acid and glycolic acid was examined. The surfaces of modified electrodes were characterized using atomic force microscopy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modification of Glassy Carbon Electrodes with Complexes of Manganese(II) with Some Phenanthroline Derivatives Immobilized in Nafion Layer

Tomczyk,

Seliger

2024

IJMS

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Regulating Charge Transfer in a Heterojunction Photoanode for Efficient Photo‐Charging of Zn‐Air/Sulfion Hybrid Batteries

Kong,

Qiao,

et al. 2024

Adv Funct Materials

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Integrating sulfion‐rich wastewater purification with photo‐charging Zn‐Air batteries enables dual benefits for solar energy storage and environmental protection. However, photo‐charging efficiency is hindered by charge transfer issues. Here, the study synthesizes a CdS@CdIn2S4 core–shell photoelectrode and uses Kelvin Probe Force Microscopy (KPFM) to probe surface potential changes and photo‐charge transfer under illumination. The outer shell (CdIn2S4) exhibits upward band bending and a Conduction Band (CB) more negative than bulk CdS, leading to the accumulation of photoelectrons on the surface, which is detrimental to sulfion oxidation. Vacancy engineering aligns the Fermi energy of two materials, creating an optimal type‐II configuration that accumulates holes on the surface, thereby boosting the photo‐charging current density in Zn‐Air/Sulfion hybrid batteries by 18‐fold. A benchmark photo‐charging current density of 1.26 mA cm−2 is therefore achieved for Zn‐Air/Sulfion hybrid batteries. This work demonstrates the effectiveness of regulating charge transfer pathways in photo‐charging Zn‐Air/Sulfion hybrid batteries, showing potential applications in various photo‐assisted batteries.

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Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

Kogularasu,

Lee,

Sriram

et al. 2023

Angewandte Chemie

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In the evolving field of electrocatalysis, thermal treatment of nano‐electrocatalysts has become an essential strategy for performance enhancement. This review systematically investigates the impact of various thermal treatments on the catalytic potential of nano‐electrocatalysts. The focus encompasses an in‐depth analysis of the changes induced in structural, morphological, and compositional properties, as well as alterations in electro‐active surface area, surface chemistry, and crystal defects. By providing a comprehensive comparison of commonly used thermal techniques, such as annealing, calcination, sintering, pyrolysis, hydrothermal, and solvothermal methods, this review serves as a scientific guide for selecting the right thermal technique and favorable temperature to tailor the nano‐electrocatalysts for optimal electrocatalysis. The resultant modifications in catalytic activity are explored across key electrochemical reactions such as electrochemical (bio)sensing, catalytic degradation, oxygen reduction reaction, hydrogen evolution reaction, overall water splitting, fuel cells, and carbon dioxide reduction reaction. Through a detailed examination of the underlying mechanisms and synergistic effects, this review contributes to a fundamental understanding of the role of thermal treatments in enhancing electrocatalytic properties. The insights provided offer a roadmap for future research aimed at optimizing the electrocatalytic performance of nanomaterials, fostering the development of next‐generation sensors and energy conversion technologies.

show abstract

Manganese oxide coated TiO2 nanotube-based electrode for efficient and selective electrocatalytic sulfide oxidation to colloidal sulfur

Cited by 15 publications

References 66 publications

Modification of Glassy Carbon Electrodes with Complexes of Manganese(II) with Some Phenanthroline Derivatives Immobilized in Nafion Layer

Modification of Glassy Carbon Electrodes with Complexes of Manganese(II) with Some Phenanthroline Derivatives Immobilized in Nafion Layer

Regulating Charge Transfer in a Heterojunction Photoanode for Efficient Photo‐Charging of Zn‐Air/Sulfion Hybrid Batteries

Unlocking Catalytic Potential: Exploring the Impact of Thermal Treatment on Enhanced Electrocatalysis of Nanomaterials

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