Recent advances in metal sulfides: from controlled fabrication to electrocatalytic, photocatalytic and photoelectrochemical water splitting and beyond

Chemical Society Reviews, Journal Year: 2019, Volume and Issue: 48(15), P. 4178 - 4280

Published: Jan. 1, 2019

This review describes an in-depth overview and knowledge on the variety of synthetic strategies for forming metal sulfides their potential use to achieve effective hydrogen generation beyond.

Language: Английский

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Rational Design of Nanoarray Architectures for Electrocatalytic Water Splitting

Advanced Functional Materials, Journal Year: 2019, Volume and Issue: 29(20)

Published: Jan. 21, 2019

Abstract Electrochemical water splitting is recognized as a practical strategy for impelling the transformation of sustainable energy sources such solar from electricity to clean hydrogen fuel. To actualize large‐scale production, it paramount develop low‐cost, earth‐abundant, efficient, and stable electrocatalysts. Among those electrocatalysts, alternative architectural arrays grown on conductive substrates have been proven be highly efficient toward due large surface area, abundant active sites, synergistic effects between electrocatalysts substrates. Herein, advancement nanoarray architectures in electrocatalytic applications reviewed. The categories different nanoarrays reliable versatile synthetic approaches are summarized. A unique emphasis highlighted promising strategies enhance activities stability by component manipulation, heterostructure regulation, vacancy engineering. intrinsic mechanism analysis electronic structure optimization, intermediates' adsorption facilitation, coordination environments' amelioration also discussed with regard theoretical simulation situ identification. Finally, challenges opportunities valuable directions pathways outstanding performance provided conversion field, facilitating development systems.

Language: Английский

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High‐Performance Flexible Quasi‐Solid‐State Supercapacitors Realized by Molybdenum Dioxide@Nitrogen‐Doped Carbon and Copper Cobalt Sulfide Tubular Nanostructures

Advanced Science, Journal Year: 2018, Volume and Issue: 5(10)

Published: Aug. 11, 2018

Abstract Flexible quasi‐/all‐solid‐state supercapacitors have elicited scientific attention to fulfill the explosive demand for portable and wearable electronic devices. However, use of electrode materials faces several challenges, such as intrinsically slow kinetics volume change upon cycling, which impede energy output electrochemical stability. This study presents well‐aligned molybdenum dioxide@nitrogen‐doped carbon (MoO 2 @NC) copper cobalt sulfide (CuCo S 4 ) tubular nanostructures grown on flexible fiber in supercapacitors. Benefiting from chemically stable interfaces, affluent active sites, efficient 1D electron transport, MoO @NC CuCo integrated conductive substrates deliver excellent performance. A quasi‐solid‐state asymmetric supercapacitor composed negative positive achieves an ultrahigh density 65.1 W h kg −1 at a power 800 retains favorable 27.6 12.8 kW . Moreover, it demonstrates good cycling performance with 90.6% capacitance retention after 5000 cycles mechanical flexibility by enabling 92.2% 2000 bending cycles. provides effective strategy develop superior

Language: Английский

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A critical review on transition metal phosphide based catalyst for electrochemical hydrogen evolution reaction: Gibbs free energy, composition, stability, and true identity of active site

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 478, P. 214956 - 214956

Published: Dec. 22, 2022

Language: Английский

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Bimetallic‐Based Electrocatalysts for Oxygen Evolution Reaction

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(10)

Published: Dec. 26, 2022

Abstract The electrochemical oxygen evolution reaction (OER) is a core electrode for the renewable production of high‐purity hydrogen, carbon‐based fuel, synthetic ammonia, etc. However, sluggish kinetics OER result in high overpotential and limit widespread application OER‐based technologies. Recent studies have shown that bimetallic‐based materials with synergism different metal components to regulate adsorption dissociation energy intermediates are promising electrocatalyst candidates lower cost consumption. In past two decades, tremendous efforts been devoted developing applications focus on compositions, phase, structure, etc., highlight components. there lack critical thinking organized analysis materials. This review critically discusses challenges materials, summarizes current optimization strategies enhance both activity stability, highlights state‐of‐the‐art electrocatalysts OER. relationship between componential/structural features their electrocatalytic properties presented form comprehensive electronic geometric modifications based thorough reported works discuss future realize sustainable applications.

Language: Английский

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Constructing a highly oriented layered MOF nanoarray from a layered double hydroxide for efficient and long-lasting alkaline water oxidation electrocatalysis

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(15), P. 8771 - 8776

Published: Jan. 1, 2019

Template-directed synthesized Fe_0.1-Ni-MOF nanoarray (Fe_0.1-Ni-MOF/NF) behaves efficiently as an electrocatalyst for alkaline water oxidation with a strong electrochemical durability.

Language: Английский

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Multilayer hollow MnCo2O4 microsphere with oxygen vacancies as efficient electrocatalyst for oxygen evolution reaction

Chemical Engineering Journal, Journal Year: 2020, Volume and Issue: 421, P. 127831 - 127831

Published: Nov. 30, 2020

Language: Английский

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Hierarchically Structured CuCo₂S₄ Nanowire Arrays as Efficient Bifunctional Electrocatalyst for Overall Water Splitting

ACS Sustainable Chemistry & Engineering, Journal Year: 2018, Volume and Issue: 6(9), P. 11877 - 11883

Published: July 16, 2018

Hydrogen produced from water splitting offers a green alternative to conventional energy such as fossil fuels. Herein, CuCo2S4 nanowire arrays were synthesized on nickel foam substrate by two-step hydrothermal approach and utilized highly efficient bifunctional electrocatalyst for overall splitting. The identified an exceptionally active catalyst the hydrogen evolution reaction (HER) in basic solution with extremely low overpotential of 65 mV reach current density 10 mA/cm2. hierarchically structured electrode was also toward oxygen (OER), achieving high 100 mA/cm2 at only 310 mV. Consequently, alkaline electrolyzer constructed using both anode cathode can realize cell voltage 1.65 V, suggesting promising

Language: Английский

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In-situ synthesis of free-standing FeNi-oxyhydroxide nanosheets as a highly efficient electrocatalyst for water oxidation

Chemical Engineering Journal, Journal Year: 2020, Volume and Issue: 395, P. 125180 - 125180

Published: April 23, 2020

Language: Английский

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Simultaneously boosting hydrogen production and ethanol upgrading using a highly-efficient hollow needle-like copper cobalt sulfide as a bifunctional electrocatalyst

Journal of Colloid and Interface Science, Journal Year: 2021, Volume and Issue: 602, P. 325 - 333

Published: June 4, 2021

Language: Английский

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