Engineering a molecular ruthenium catalyst into three-dimensional metal covalent organic frameworks for efficient water oxidation

Han, Wang-Kang; Liu, Yong; Feng, Jing-Dong; Yan, Xiaodong; Pang, Huan; Gu, Zhi-Guo

doi:10.1039/d3sc03681b

Cited by 8 publications

(3 citation statements)

References 35 publications

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“…In the past few decades, the development and evaluation of POM-based electrochemical water oxidation catalysts (WOCs) have proven to be effective under extreme conditions in which most organic ligands or oxide-based WOCs do not have the required long-term stability. 4,6–8 It is believed that the superior catalytic activity of the substituted POM species originates from their unique electronic structures and fast intra-electron transfer and variable oxidation states of the multiple transition metal centres, in which unusual high-valent states may exist as key intermediates for the oxidation. 9,10…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Ni-containing Keggin-type polyoxometalates with variable oxidation states as novel catalysts for electrochemical water oxidation

Li,

Ng,

et al. 2024

Chem. Sci.

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Section: Introductionmentioning

confidence: 99%

Stabilization of Ni-containing Keggin-type polyoxometalates with variable oxidation states as novel catalysts for electrochemical water oxidation

Li,

Ng,

et al. 2024

Chem. Sci.

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“…Inspired by the molecular catalysts, the same research group engineered another Ru(II) complex building unit for metal-containing COFs, achieving efficient photocatalytic water splitting for O 2 production (Figure 8c). 84 The resultant metal-containing COFs exhibited rare 3D interlocking structures characterized by the inclined interpenetration of 2D COFs. The Ru sites were periodically arranged within the crystalline frameworks.…”

mentioning

confidence: 99%

“…It is also critical to optimize the OER process when designing photocatalysts for water splitting. Inspired by the molecular catalysts, the same research group engineered another Ru(II) complex building unit for metal-containing COFs, achieving efficient photocatalytic water splitting for O 2 production (Figure c) . The resultant metal-containing COFs exhibited rare 3D interlocking structures characterized by the inclined interpenetration of 2D COFs.…”

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confidence: 99%

Functional Regulation of Covalent Organic Frameworks for Photocatalytic Water Splitting

Han,

Yuan,

et al. 2024

ACS Materials Lett.

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Solar-driven water splitting into hydrogen and oxygen fuels represents a promising way for clean energy production to achieve a carbonneutral future. The efficiency of photocatalytic water splitting strongly relies on the development of high-performance catalysts. Noteworthily, covalent organic frameworks (COFs) offer a distinctive platform for designing photo-to-chemical energy conversion, benefiting from their tailorable structure, ultrahigh porosity, robust framework, sufficient light absorption, and rich active sites. Herein we highlight a systematic overview of the recent research progress using COFs for photocatalytic water splitting half-reactions and overall water splitting. With an aim to shed light on understanding the structural design of COF photocatalysts for water splitting, various functional strategies are discussed. Finally, the major challenges and future perspectives are proposed with the hope of achieving the ongoing development of this emerging field.

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Rational Design of Covalent Organic Frameworks as Photocatalysts for Water Splitting

Li,

Liu,

Deng

et al. 2024

Adv Funct Materials

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Photocatalytic water splitting for hydrogen production represents a crucial approach for obtaining green energy through artificial solar energy utilization, offering a sustainable method for energy generation that helps mitigate energy shortages and protect the environment. Among the numerous photocatalytic materials, covalent organic frameworks (COFs) have garnered significant attention and intensive study from researchers due to their distinctive benefits, such as porosity, pre‐design capability, and tunability at the atomic level. Significant advancements are made in the development of materials, enhancement of performance, and comprehension of mechanisms. In this review, recent advancements in COF‐based photocatalytic water splitting are spotlighted, both in half‐reactions and overall reactions, with a particular emphasis on the rational design of COF structures to regulate the materials' optical and electrical properties, as well as the fundamental processes of photocatalysis. Drawing from current research in this field, the existing challenges, and potential opportunities are also discussed for future development.

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Engineering a molecular ruthenium catalyst into three-dimensional metal covalent organic frameworks for efficient water oxidation

Abstract: Three-dimensional metal covalent organic frameworks (3D MCOFs) were constructed by integrating molecular ruthenium water oxidation catalysts (WOCs) for realizing efficient water oxidation.

Cited by 8 publications

References 35 publications

Stabilization of Ni-containing Keggin-type polyoxometalates with variable oxidation states as novel catalysts for electrochemical water oxidation

Stabilization of Ni-containing Keggin-type polyoxometalates with variable oxidation states as novel catalysts for electrochemical water oxidation

Functional Regulation of Covalent Organic Frameworks for Photocatalytic Water Splitting

Rational Design of Covalent Organic Frameworks as Photocatalysts for Water Splitting

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