Design Strategies for Stable and Active Co‐Based Electrocatalysts in Acidic Oxygen Evolution Reaction DOI

Chenchen Yan,

Junjie Zhou,

Yayun Zhao

и другие.

Chemistry - An Asian Journal, Год журнала: 2025, Номер unknown

Опубликована: Май 12, 2025

Abstract Proton exchange membrane water electrolysis (PEMWE) offers several advantages over alkaline electrolysis, including a more compact design, faster response time, lower ohmic losses, and higher gas purity. However, the harsh acidic conditions required for PEMWE have led to use of noble metal‐based electrocatalysts oxygen evolution reaction (OER), particularly ruthenium (Ru) iridium (Ir), which are both scarce costly. In recent years, significant progress has been made in development cobalt (Co)‐based electrocatalysts, exhibit promising performance OER, providing sustainable cost‐effective alternative precious metals. This review provides comprehensive summary, classification, discussion latest Co‐based catalysts OER. Key insights into fundamental mechanisms as well relationships between catalytic activity stability, highlighted. Additionally, examines various synthesis strategies highlights methods enhance their OER performance. Finally, concludes by addressing current challenges field offering future research directions aimed at developing high‐performance materials efficient under conditions.

Язык: Английский

Iridium-based catalysts for oxygen evolution reaction in acidic media: Mechanism, catalytic promotion effects and recent progress DOI Creative Commons
Chunyan Wang, Alex Schechter, Ligang Feng

и другие.

Deleted Journal, Год журнала: 2023, Номер 2, С. e9120056 - e9120056

Опубликована: Фев. 25, 2023

Iridium (Ir)-based catalysts are highly efficient for the anodic oxygen evolution reaction (OER) due to high stability and anti-corrosion ability in strong acid electrolyte. Recently, intensive attention has been directed novel, efficient, low-cost Ir-based overcome challenges of their application water electrolysis technique. To make a comprehensive understanding recently developed catalytic properties, mechanism promotion principles were discussed OER condition aimed proton exchange membrane electrolyzer (PEMWE) this review. The mechanisms adsorbate lattice first presented easy mechanism; brief perspective analysis from aspects geometric effect, electronic synergistic defect engineering, support effect was concluded. Then, latest progress practical introduced detail, which classified into varied composition Ir catalyst terms alloys, hetero-element doping, perovskite, pyrochlore, heterostructure, core–shell structure, supported catalysts. Finally, problems faced by current acidic electrolyte put forward. It is concluded that with low loading should be future, paid probing structural performance correlation, real PEMWE devices.Hopefully, effort can helpful catalysis OER, instructive novel design fabrication.

Язык: Английский

Процитировано

100

A review of cobalt-based catalysts for sustainable energy and environmental applications DOI Creative Commons
Suraj Gupta, R. Fernandes,

Rupali Patel

и другие.

Applied Catalysis A General, Год журнала: 2023, Номер 661, С. 119254 - 119254

Опубликована: Май 5, 2023

In a bid to tackle the degrading climate conditions, new age research in catalysis is predominantly focused on sustainable technologies associated with renewable energy conversion and environment purification. One of primary motivations for use low-cost, earth-abundant materials that can fulfill scale-up needs respective technologies. Cobalt (Co) based catalysts have been an indispensable part almost all areas they are often looked at as low-cost substitutes precious metal-based catalysts. context environmental applications, Co-based more commonly used reactions such hydrogen evolution reaction (HER), oxygen (OER), hydrolysis chemical hydrides, CO2 reduction (CO2RR) advanced oxidation processes (AOPs). interesting compounds Co plays diverse role facilitating different reactions. This review provides brief account significance elaborates their advancement each above-mentioned applications presents future directions An in-depth analysis gain deeper understanding systems highly desired promote breakthroughs catalysis.

Язык: Английский

Процитировано

85

PdO@CoSe2 composites: efficient electrocatalysts for water oxidation in alkaline media DOI Creative Commons
Abdul Hanan, Muhammad Yameen Solangi, Abdul Jaleel Laghari

и другие.

RSC Advances, Год журнала: 2023, Номер 13(1), С. 743 - 755

Опубликована: Янв. 1, 2023

In this study, we have prepared cobalt selenide (CoSe

Язык: Английский

Процитировано

34

Modified surface nano-topography for renewable energy applications for promising cobalt-based nanomaterials towards dual-functional electrocatalyst DOI
Iswary Letchumanan, Rozan Mohamad Yunus, Mohd Shahbudin Masdar

и другие.

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 59, С. 1518 - 1539

Опубликована: Фев. 16, 2024

Язык: Английский

Процитировано

11

Composition-controlled chemical bath deposition of Fe-doped NiO microflowers for boosting oxygen evolution reaction DOI
Sergio Battiato, Anna Lucia Pellegrino, Antonino Pollicino

и другие.

International Journal of Hydrogen Energy, Год журнала: 2023, Номер 48(48), С. 18291 - 18300

Опубликована: Фев. 15, 2023

Язык: Английский

Процитировано

22

Cobalt compounds-based hollow structure electrocatalysts for water splitting: a review DOI Open Access
Ha Huu,

Thi Hong Chuong Nguyen,

Hai Bang Truong

и другие.

International Journal of Hydrogen Energy, Год журнала: 2023, Номер 49, С. 613 - 632

Опубликована: Июль 16, 2023

Язык: Английский

Процитировано

18

Hollow-structured cobalt sulfide electrocatalyst for alkaline oxygen evolution reaction: Rational tuning of electronic structure using iron and fluorine dual-doping strategy DOI
Hyejin Kim,

Kyeongseok Min,

Giseong Song

и другие.

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 665, С. 922 - 933

Опубликована: Март 30, 2024

Язык: Английский

Процитировано

8

Crystalline to Amorphous: Unveiling the Potential of Transition Metal Oxide‐based Electrocatalysts for Facile Oxygen Evolution Reaction in Alkaline Media DOI
Baran Sarac, A. Sezai̇ Saraç

ChemCatChem, Год журнала: 2024, Номер 16(16)

Опубликована: Янв. 27, 2024

Abstract Transition metal oxides/hydroxides exhibit reasonable oxygen activity in alkaline electrolytes and have been identified as potential electrocatalysts. Some highly active transition oxides or hydroxides can alter their surface chemistry response to the electrolyte environment. This review presents performance of some recently developed metal‐based electrocatalytic evolution reaction (OER). Despite promising catalytic many metals alloys due incompletely filled d orbitals, low corrosion resistance media barriers use Metallic glasses (MGs), with disordered atomic structure, unique exciting properties that cannot be found crystalline metals. glasses′ chemical stem from metastable defective nature, well structural homogeneity. In case Zr‐based MGs, presence MG−OH ads MG−O x species on for enables rapid electron transfer chemisorbed OH − an “activated” MG leading generation amorphous Zr‐rich layer. oxide layer formation favors OER understood by decreased Tafel slope stable nature during open circuit measurements solution. Unlike as‐spun counterpart, relatively small impedance magnitude characteristic frequency post‐OER electrode corroborate enhancement kinetics after electrochemistry. Compared early discovered electrodes, MG‐oxide assembly outperforms precision composite forms regarding electroactivity stability.

Язык: Английский

Процитировано

7

Tetranuclear CoII4O4 Cubane Complex: Effective Catalyst Toward Electrochemical Water Oxidation DOI

Ezhava Manu Manohar,

Hariharan N. Dhandapani, Soumalya Roy

и другие.

Inorganic Chemistry, Год журнала: 2024, Номер 63(11), С. 4883 - 4897

Опубликована: Март 4, 2024

The reaction of Co(OAc)2·6H2O with 2,2′-[{(1E,1′E)-pyridine-2,6-diyl-bis(methaneylylidene)bis(azaneylylidene)}diphenol](LH2) a multisite coordination ligand and Et3N in 1:2:3 stoichiometric ratio forms tetranuclear complex Co4(L)2(μ-η1:η1-OAc)2(η2-OAc)2]· 1.5 CH3OH· CHCl3 (1). Based on X-ray diffraction investigations, 1 comprises distorted Co4O4 cubane core consisting two completely deprotonated ligands [L]2– four acetate ligands. Two distinct types CoII centers exist the complex, where Co(2) center has octahedral geometry; alternatively, Co(1) pentagonal–bipyramidal geometry. Analysis magnetic data shows predominant antiferromagnetic coupling (J = −2.1 cm–1), while anisotropy is easy-plane type (D1 8.8, D2 0.76 cm–1). Furthermore, demonstrates an electrochemical oxygen evolution (OER) overpotential 325 mV Tafel slope 85 dec–1, required to attain current density 10 mA cm–2 moderate stability under alkaline conditions (pH 14). Electrochemical impedance spectroscopy studies reveal that compound charge transfer resistance (Rct) 2.927 Ω, which comparatively lower than standard Co3O4 (5.242 Ω), indicating rapid kinetics between electrode electrolyte solution enhances higher catalytic activity toward OER kinetics.

Язык: Английский

Процитировано

7

Ion exchange in metal-organic frameworks and their derivatives: a facile strategy for enhanced water splitting DOI
Haoran Li, Xin Li,

Jiayan Dai

и другие.

Materials Today Energy, Год журнала: 2024, Номер 44, С. 101595 - 101595

Опубликована: Май 9, 2024

Язык: Английский

Процитировано

7