Modular and Stepwise Synthesis of a Hybrid Metal–Organic Framework for Efficient Electrocatalytic Oxygen Evolution

Shen, John; Liao, Pei‐Qin; Zhou, Dong‐Dong; He, Chun‐Ting; Wu, Jiangxue; Zhang, Wei‐Xiong

doi:10.1021/jacs.6b12353

Cited by 351 publications

(227 citation statements)

References 47 publications

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“…ChemSusChem 2017, 10,4374 -4392 www.chemsuschem.org lysts. [116] NiCo-based thin MOF nanosheets, [108] aN iFe MOF array, [109] and an iron-cobalt carboxylate framework (Fe 3 -Co 2 ) [110] exhibit highere lectrocatalytic OER activity than commercial RuO 2 and IrO 2 .T hese examples demonstrate the viability of MOFs as alternatives to precious-metal-based heterogeneous electrocatalysts.…”

Section: Discussionmentioning

confidence: 99%

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Electrocatalytic Metal–Organic Frameworks for Energy Applications

2017

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With the global energy demand expected to increase drastically over the next several decades, the development of a sustainable energy system to meet this increase is paramount. Renewable energy sources can be coupled with electrochemical conversion processes to store energy in chemical bonds. To promote these difficult transformations, electrocatalysts that operate at high conversion rates and efficiency are required. Metal–organic frameworks (MOFs) have emerged as a promising class of materials; however, the insulating nature of MOFs has limited their application as electrocatalysts. The recent development of conductive MOFs has led to several electrocatalytic MOFs that display activity comparable to that of the best‐performing heterogeneous catalysts. Although many electrocatalytic MOFs exhibit low activity and stability, the few successful examples highlight the possibility of MOF electrocatalysts as replacements for noble‐metal‐based catalysts in commercial energy‐converting devices. We review herein the use of pristine MOFs as electrocatalysts to facilitate important energy‐related reactions.

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Section: Discussionmentioning

confidence: 99%

“…[110] The electrocatalytic activity of the thermally stable, water-stable, anda lkalinestable MOF [{Fe 3 …”

Section: Bimetallic Mofsmentioning

confidence: 99%

Electrocatalytic Metal–Organic Frameworks for Energy Applications

2017

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“…[2] Their coordinatively unsaturated metal sites,which are exposed atomically dispersed metal ions,can be applied as highly active catalytic sites in catalysis, separation, and sensing. [6] These advantages can improve the performance of MOFs in supercapacitors, [1b] oxygen evolution reaction (OER), [7] oxygen reduction reaction (ORR), [8] hydrogen evolution reaction (HER) [9] and electrochemical CO 2 reduction (ECR). [6] These advantages can improve the performance of MOFs in supercapacitors, [1b] oxygen evolution reaction (OER), [7] oxygen reduction reaction (ORR), [8] hydrogen evolution reaction (HER) [9] and electrochemical CO 2 reduction (ECR).…”

Section: Introductionmentioning

confidence: 99%

“…[11] Nevertheless,the ultrasonication-assisted exfoliation is only applicable to limited MOFs and many common bulk MOFs,s uch as the MOF-74, [13] ZIF-67, [14] MOF-5, [15] and MIL [16] series cannot be exfoliated because of their intrinsic structures.M eanwhile,t he overlong treatment duration will give rise to the unavoidable morphology damage and structural deterioration. [7,18] Forexample,using aliquid-liquid interface to control the growth of MOF nanosheets can be used to synthesize nickel bis(dithiolene) nanosheets [19] and Cu-BDC MOF nanosheets. [7,18] Forexample,using aliquid-liquid interface to control the growth of MOF nanosheets can be used to synthesize nickel bis(dithiolene) nanosheets [19] and Cu-BDC MOF nanosheets.…”

Section: Introductionmentioning

confidence: 99%

A Surfactant‐Free and Scalable General Strategy for Synthesizing Ultrathin Two‐Dimensional Metal–Organic Framework Nanosheets for the Oxygen Evolution Reaction

Zhuang

Liu

et al. 2019

Angewandte Chemie

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Metal-organic framework (MOFs) two-dimensional (2D) nanosheets have many coordinatively unsaturated metal sites that act as active centres for catalysis.T od ate,l imited numbers of 2D MOFs nanosheets can be obtained through topdown or bottom-up synthesis strategies.Herein, we report a2D oxide sacrifice approach (2dOSA) to facilely synthesizeultrathin MOF-74 and BTC MOF nanosheets with af lexible combination of metal sites,whichc annot be obtained through the delamination of their bulk counterparts (top-down)o rt he conventional solvothermal method (bottom-up). The ultrathin iron-cobalt MOF-74 nanosheets prepared are only 2.6 nm thick. The sample enriched with surface coordinatively unsaturated metal sites,e xhibits as ignificantly higher oxygen evolution reaction reactivity than bulk FeCo MOF-74 particles and the state-of-the-art MOF catalyst. It is believed that this 2dOSA could provideanew and simple way to synthesize various ultrathin MOF nanosheets for wide applications.

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“…[10] The electrocatalysts re-ported so far can be divided into nanostructure electrocatalysts and crystalline molecular electrocatalysts. [11] The former are highly active and easy to recycle, [12] but lack clear structural information,s uch as the wide distribution of defects and the complex active components, which poses great challenges to the investigation of the reactionm echanism. [13] In contrast, the latter possess conveniently designed structures, whichi sb eneficial to study the mechanism.…”

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confidence: 99%

Exploring the Influence of Halogen Coordination Effect of Stable Bimetallic MOFs on Oxygen Evolution Reaction

Lü

Liu

Dong

et al. 2019

Chemistry A European J

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The energy crisis and environmental pollution have forced scientists to explore alternative energy conversion and storage devices. The anodic reactions of these devices are all oxygen evolution reactions (OER), so the development of efficient OER electrocatalysts is of great significance. At the same time, understanding the reaction mechanism of OER is conducive to the rational design of efficient OER electrocatalysts. In general, catalytic active centers play a direct role in OER performance. In this paper, a series of stable bimetallic metal–organic frameworks (MOFs, named as Fe3‐Con‐X2, n=2, 3 and X=F, Cl, Br) with similar structure were synthesized by changing the halogen coordinated with the cobalt metal active center, aiming to investigate the influence of halogen substitution effect on OER performance. It was found that the OER activity of Fe3‐Co3‐F2 is much better than Fe3‐Co2‐Cl2 and Fe3‐Co2‐Br2, indicating that the regulation of the electronegativity change of the coordination halogen atom can regulate the coordination electron structure of the metal active center, thereby achieving effective regulation of OER performance.

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Modular and Stepwise Synthesis of a Hybrid Metal–Organic Framework for Efficient Electrocatalytic Oxygen Evolution

Cited by 351 publications

References 47 publications

Electrocatalytic Metal–Organic Frameworks for Energy Applications

Electrocatalytic Metal–Organic Frameworks for Energy Applications

A Surfactant‐Free and Scalable General Strategy for Synthesizing Ultrathin Two‐Dimensional Metal–Organic Framework Nanosheets for the Oxygen Evolution Reaction

Exploring the Influence of Halogen Coordination Effect of Stable Bimetallic MOFs on Oxygen Evolution Reaction

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