Nanoelectrocatalysts for Anodic Oxygen Evolution in Acid: A Review

Yang, Jieyu; Zhao, Wenli; Xu, Fenghua; Hu, Xiaodong; Weng, Baicheng

doi:10.1021/acsanm.3c03670

Cited by 5 publications

(3 citation statements)

References 268 publications

(446 reference statements)

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“…For OER, electrocatalysts based on Ir/Ru are currently frequently employed. However, the extensive use of these materials is limited due to their high expense and rarity . Consequently, it is paramount to devise nonprecious metal-based catalytic materials that are economical, effective, and long lasting, serving as viable alternatives to materials based on precious metals.…”

Section: Energy Applications Of Csa-ncsmentioning

confidence: 99%

Carbon-Based Single-Atom Nanocatalysts for Electrochemical Energy Applications

Hao,

2024

ACS Appl. Nano Mater.

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Emerging carbon-based single-atom nanocatalysts (CSA-NCs) play a crucial role in promoting electrochemical reactions. These catalysts are highly attractive due to their exceptional performance, eco-friendliness, structural and chemical robustness, and ability to maximize active metal sites. The effectiveness of CSA-NCs in catalyzing sustainable fuel generation and bioinspired reactions relies on their electronic properties, which are determined by the metal centers, carbon matrices, and coordination characteristics. However, there is a significant gap in the literature regarding a comprehensive and critical review that highlights the successful integration of CSA-NCs into energy conversion and storage technologies. Therefore, it is essential to conduct a systematic comparison and exploration of the catalytic sites and associated mechanisms of CSA-NCs in various electrocatalytic utilizations. This review emphasizes the latest developments in the synthesizing strategies, multiscale characterization, and catalytic performance of CSA-NCs. The objective is to explore the electronic configuration and spatial organization of isolated atoms along with their interactions with the substrate. Furthermore, potential uses of the innovative catalysts in different electrocatalytic processes for renewable energy conversion systems are discussed. As research in this active field continues, it is imperative to emphasize future directions and potential breakthroughs that can further enhance the efficiency and applicability of CSA-NCs.

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Section: Energy Applications Of Csa-ncsmentioning

confidence: 99%

Carbon-Based Single-Atom Nanocatalysts for Electrochemical Energy Applications

Hao,

2024

ACS Appl. Nano Mater.

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“…27−29 The use of nanomaterials in catalysis has increased significantly in recent years due to higher surface area and more exposed active sites. 30 One more reason for choosing POM as a precursor is its well-defined molecular arrangement and orderly layer by layer crystal packing which can stop agglomeration during heating. 31 In a report published in 2020, Lu et al explored the CoMoS heterostructure as a bifunctional electrocatalyst for HER and OER, derived from Co 5 Mo 10 polyoxometalate.…”

mentioning

confidence: 99%

“…Polyoxometalates (POMs), which are a distinguishing class of nanosized clusters, have recently been proposed as viable water oxidation catalysts (WOCs) because of their strong redox activity, low cost, and high durability. − They can also be used as precursors for WOCs for synthesizing nanomaterials, owing to their huge structural diversity. − The use of nanomaterials in catalysis has increased significantly in recent years due to higher surface area and more exposed active sites …”

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confidence: 99%

Polyoxometalate-Derived Cu-MoO₂ Nanosheets as Electrocatalysts for Enhanced Acidic Water Oxidation

Sood,

Krishankant,

Bagdwal

et al. 2023

ACS Appl. Nano Mater.

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In the era of renewable energy, electrocatalytic water splitting has always shown considerable potential. Consequently developing earth-abundant, affordable, and durable electrocatalysts for oxygen evolution is crucial. In this regard, polyoxometalates have been in the spotlight recently because of their attractive properties and well-defined molecular arrangement. Herein, we report a "polyoxometalate-derived" noble metal-free electrocatalyst for efficient oxygen evolution in "acidic" medium for the first time. An octamolybdate cluster-based solid, [(Cu(pic) 2 ) 2 (Mo 8 O 26 )]•8H 2 O (POM), served as the precursor to obtain the nanosheet-like electrocatalyst [Cu 0.1 -{MoO 2 } 0.9 ] (PS-55) which offered the overpotential of 374 mV to reach 10 mA cm −2 current density and a tafel slope of 193 mV dec −1 , with the stability of 18 h. Density functional theory analysis revealed Mo as a prominent active site in PS-55. Projected density of states demonstrated a synergistic interaction between Cu-Mo d orbitals and O p orbitals, resulting in p-d mixing, a key factor driving the proficient oxygen evolution reaction. This work paves the way for studying POM-derived catalysts for acidic water oxidation.

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Recommended practice for measurement and evaluation of oxygen evolution reaction electrocatalysis

An,

Park,

Shin

et al. 2024

EcoMat

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The Oxygen evolution reaction (OER) is a pivotal technology driving next‐generation sustainable energy conversion and storage devices. Establishing a robust analytical methodology is paramount to fostering innovation in this field. This review offers a comprehensive discussion on measurement and interpretation, advocating for standardized protocols and best practices to mitigate the myriad factors that complicate analysis. The initial focus is directed toward substrate electrodes and gas bubbles, both significant contributors to reduced reliability and reproducibility. Subsequently, the review focuses on intrinsic activity assessment, identification of electrochemical active sites, and the disentanglement of competing process contributions. These careful methodologies ensure the systematic delivery of insights crucial for assessing OER performance. In conclusion, the review highlights the critical role played by precise measurement techniques and unbiased activity comparison methodologies in propelling advancements in OER catalyst development.image

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Nanoelectrocatalysts for Anodic Oxygen Evolution in Acid: A Review

Cited by 5 publications

References 268 publications

Carbon-Based Single-Atom Nanocatalysts for Electrochemical Energy Applications

Carbon-Based Single-Atom Nanocatalysts for Electrochemical Energy Applications

Polyoxometalate-Derived Cu-MoO₂ Nanosheets as Electrocatalysts for Enhanced Acidic Water Oxidation

Recommended practice for measurement and evaluation of oxygen evolution reaction electrocatalysis

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Nanoelectrocatalysts for Anodic Oxygen Evolution in Acid: A Review

Cited by 5 publications

References 268 publications

Carbon-Based Single-Atom Nanocatalysts for Electrochemical Energy Applications

Carbon-Based Single-Atom Nanocatalysts for Electrochemical Energy Applications

Polyoxometalate-Derived Cu-MoO2 Nanosheets as Electrocatalysts for Enhanced Acidic Water Oxidation

Recommended practice for measurement and evaluation of oxygen evolution reaction electrocatalysis

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Polyoxometalate-Derived Cu-MoO₂ Nanosheets as Electrocatalysts for Enhanced Acidic Water Oxidation