Bimetallic NiCo Metal–Organic Frameworks with High Stability and Performance Toward Electrocatalytic Oxidation of Urea in Seawater DOI

Soheila Sanati,

Reza Abazari, Alexander M. Kirillov

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(34), P. 15813 - 15820

Published: Aug. 14, 2024

The urea oxidation reaction (UOR) is an alternative anodic for hydrogen generation via water splitting. significance of UOR lies in both H2 production and the decontamination urea-containing wastewater. Commercial electrocatalysts this field are generally based on noble metals show several limitations. Bimetal–organic frameworks (BMOFs) can be excellent candidates replacement noble-metal-based catalysts beacuse their promising features, such as a tunable structure, high surface area, abundant sites electrocatalysis. In study, series nickel–cobalt BMOFs (Nix-Coy-BMOFs: x y refer to molar fraction Ni Co) were synthesized applied UOR. particular, Ni0.15Co0.85-MOF material with structure similar that its parent Co-MOF, revealed exceptional electrocatalytic performance, evidenced by low values overpotential (1.33 V vs RHE at 10 mA cm–2), TOF (0.47 s–1), Tafel slope (125 mV dec–1). At 40 cm–2 current density, also showed stability during 72 h tests. This performance NiCo-BMOF assigned synergistic effect between Co Ni, active sites, porosity, all which result increased rate due acceleration charge mass transfers. Thus, present work introduces efficient noble-metal-free energy from urea-based

Language: Английский

Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting DOI
Quan Li, Hui Jiang,

Guoliang Mei

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3694 - 3812

Published: March 22, 2024

Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable

Language: Английский

Citations

245
Facet Engineering of Advanced Electrocatalysts Toward Hydrogen/Oxygen Evolution Reactions DOI Creative Commons
Changshui Wang, Qian Zhang, Bing Yan

et al.

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: Feb. 16, 2023

The electrocatalytic water splitting technology can generate high-purity hydrogen without emitting carbon dioxide, which is in favor of relieving environmental pollution and energy crisis achieving neutrality. Electrocatalysts effectively reduce the reaction barrier increase efficiency. Facet engineering considered as a promising strategy controlling ratio desired crystal planes on surface. Owing to anisotropy, with different orientations usually feature facet-dependent physical chemical properties, leading differences adsorption energies oxygen or intermediates, thus exhibit varied activity toward evolution (HER) (OER). In this review, brief introduction basic concepts, fundamental understanding mechanisms well key evaluating parameters for both HER OER are provided. formation facets comprehensively overviewed aiming give scientific theory guides realize dominant planes. Subsequently, three strategies selective capping agent, etching coordination modulation tune summarized. Then, we present an overview significant contributions facet-engineered catalysts HER, OER, overall splitting. particular, highlight that density functional calculations play indispensable role unveiling structure–activity correlation between plane catalytic activity. Finally, remaining challenges provided future prospects designing advanced electrocatalysts discussed.

Language: Английский

Citations

150
Fine-tune the electronic structure in Co-Mo based catalysts to give easily coupled HER and OER catalysts for effective water splitting DOI
Xinhui Zhang, Aiping Wu, Dongxu Wang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 328, P. 122474 - 122474

Published: Feb. 15, 2023

Language: Английский

Citations

147
Iron-based metal–organic frameworks and their derived materials for photocatalytic and photoelectrocatalytic reactions DOI
Yangdan Pan, Reza Abazari,

Beenish Tahir

et al.

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 499, P. 215538 - 215538

Published: Nov. 1, 2023

Language: Английский

Citations

128
Dual-metal-organic-framework derived CoP/MoP hybrid as an efficient electrocatalyst for acidic and alkaline hydrogen evolution reaction DOI
Shanshan Liu, Lingjuan Ma, Ji-Sen Li

et al.

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 631, P. 147 - 153

Published: Nov. 4, 2022

Language: Английский

Citations

96
In Situ Immobilizing Atomically Dispersed Ru on Oxygen-Defective Co3O4 for Efficient Oxygen Evolution DOI
Cheng‐Zong Yuan, Shuo Wang, Kwan San Hui

et al.

ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(4), P. 2462 - 2471

Published: Feb. 2, 2023

The synergistic regulation of the electronic structures transition-metal oxide-based catalysts via oxygen vacancy defects and single-atom doping is efficient to boost their evolution reaction (OER) performance, which remains challenging due complex synthetic procedures. Herein, a facile defect-induced in situ deposition strategy developed anchor atomically dispersed Ru onto vacancy-rich cobalt oxides (Ru/Co3O4–x) based on spontaneous redox between Ru3+ ions nonstoichiometric Co3O4–x. Accordingly, as-prepared Ru/Co3O4–x electrocatalyst with coexistence vacancies atoms exhibits excellent performances toward OER low overpotential 280 mV at 10 mA cm–2, small Tafel slope value 86.9 dec–1, good long-term stability alkaline media. Furthermore, density functional theory calculations uncover that could synergistically tailor electron decentralization d-band center Co atoms, further optimizing adsorption oxygen-based intermediates (*OH, *O, *OOH) reducing barriers OER. This work proposes an available for constructing electrocatalysts abundant noble metal presents deep understanding engineering transition-metal-based evolution.

Language: Английский

Citations

96
Strategies for enhancing the catalytic activity and electronic conductivity of MOFs-based electrocatalysts DOI

Peiyun Zhou,

Junjun Lv, Xiubing Huang

et al.

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 478, P. 214969 - 214969

Published: Dec. 14, 2022

Language: Английский

Citations

90
Design strategies and effect comparisons toward efficient piezocatalytic system DOI
Chunyang Wang, Cheng Hu, Fang Chen

et al.

Nano Energy, Journal Year: 2022, Volume and Issue: 107, P. 108093 - 108093

Published: Dec. 15, 2022

Language: Английский

Citations

90
Design and Advanced Manufacturing of NU‐1000 Metal–Organic Frameworks with Future Perspectives for Environmental and Renewable Energy Applications DOI Creative Commons
Reza Abazari,

Soheila Sanati,

Majed A. Bajaber

et al.

Small, Journal Year: 2023, Volume and Issue: 20(15)

Published: Nov. 23, 2023

Abstract Metal–organic frameworks (MOFs) represent a relatively new family of materials that attract lots attention thanks to their unique features such as hierarchical porosity, active metal centers, versatility linkers/metal nodes, and large surface area. Among the extended list MOFs, Zr‐based‐MOFs demonstrate comparably superior chemical thermal stabilities, making them ideal candidates for energy environmental applications. As Zr‐MOF, NU‐1000 is first synthesized at Northwestern University. A comprehensive review various approaches synthesis MOFs obtaining properties (e.g., diverse morphologies, area, particular pore size distribution) applications in catalysis (electro‐, photo‐catalysis), CO 2 reduction, batteries, hydrogen storage, gas storage/separation, other fields are presented. The further outlines current challenges development derivatives practical applications, revealing areas future investigation.

Language: Английский

Citations

82
Pillared-MOF@NiV-LDH Composite as a Remarkable Electrocatalyst for Water Oxidation DOI
Yangdan Pan,

Soheila Sanati,

Reza Abazari

et al.

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(51), P. 20913 - 20922

Published: Dec. 15, 2022

Oxygen evolution reaction (OER) represents a highly important electrochemical transformation in energy storage and conversion technologies. Considering the low rate of this four-electron half-reaction, there is demand for efficient, stable, noble-metal-free electrocatalysts to improve kinetic economical parameters. In work, new pillared-MOF@NiV-LDH nanocomposite based on CoII metal-organic framework (pillared-MOF) heterometallic Ni/V-layered double hydroxide (NiV-LDH) was assembled via simple protocol, characterized, explored as an electrocatalyst OER. A remarkable electrocatalytic efficiency 1 M KOH evidenced by overpotential (238 mV at 10 mA cm-2 current density) small value Tafel slope (62 dec-1). These parameters are very close those reference IrO2 superior majority LDH- MOF-based systems previously applied Excellent stability confirmed chronopotentiometry tests 70 h linear-sweep voltammetry after 7000 cycles. Features such rich electroactive sites, porous structure, high surface area, synergic effect between pillared-MOF NiV-LDH likely responsible Despite prior reports application OER, present study describes first example where type LDH blended with MOF generate material. The interface two components composite can electronic structure and, turn, behavior. introduction paves way toward synthesis other multicomponent materials potential applications different fields.

Language: Английский

Citations

81