Metal–Organic Framework Hexagonal Nanoplates: Bottom-up Synthesis, Topotactic Transformation, and Efficient Oxygen Evolution Reaction

Lin, Yifan; Wan, Hao; Wu, Dan; Chen, Gen; Zhang, Ning; Liu, Xiaohe; Li, Junhui; Cao, Yijun; Qiu, Guanzhou; Ma, Renzhi

doi:10.1021/jacs.0c01916

Cited by 166 publications

(110 citation statements)

References 42 publications

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“…Moreover, Liu and coworkers used BDC and 1,4‐diazabicyclo[2.2.2]octane (DABCO) for the synthesis of the 2D nickel‐based MOF hexagonal nanoplate (HXP) (Figure 8f). [ 67 ] The HXP was prepared by a pyridine‐assisted bottom‐up method, in which a topological network was guided by the inhibition and modulation of pyridine. Nanorods (HXR) and nanodisks (HXD) were synthesized from different amounts of pyridine.…”

Section: D Mofs For Oermentioning

confidence: 99%

Two‐Dimensional Metal–Organic Frameworks‐Based Electrocatalysts for Oxygen Evolution and Oxygen Reduction Reactions

Zhang

et al. 2020

Adv Energy and Sustain Res

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Due to unique intrinsic properties and flexible structure modulations, 2D metal–organic frameworks (MOFs)‐based materials have become the most promising candidates in the electrocatalysts of energy‐conversion systems such as oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). Herein, the background of fundamental 2D MOFs is first introduced and 2D MOF‐based electrocatalysts are classified based on OER and ORR. Meanwhile, the recent advances in the 2D MOF‐based OER and ORR electrocatalysts are emphasized and discussed including the subtle synthesis strategy, novel structures, unique morphologies, superior electrocatalytic performances, and the underlying reaction mechanism. Finally, the challenges and future perspectives for the developments and research of 2D MOFs‐based OER and ORR electrocatalysts are proposed.

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Section: D Mofs For Oermentioning

confidence: 99%

Two‐Dimensional Metal–Organic Frameworks‐Based Electrocatalysts for Oxygen Evolution and Oxygen Reduction Reactions

Zhang

et al. 2020

Adv Energy and Sustain Res

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“…Cu 2 + ions and BDC linkers slowly diffuse to the interface of two solutions, generating highly diluted 2D CuBDC nanosheets. AFM images (Figure 2f-h) demonstrate lateral dimensions above one micrometer and thicknesses in HXP@NC800 307 48 8 0.4 GCE [92] Co-NCS@CNT 360 92.9 N/A 0.17 GCE [93] Co@N-carbon 400 61 N/A 0.21 GCE [94] FeNi the range 5-25 nm. Zhang et al [56] synthesized 2D zeolitic imidazolate framework-L (ZIFÀ L) nanosheets by templateassisted deposition.…”

Section: Preparation and Characterization Of 2d Mofsmentioning

confidence: 99%

“…The metal/alloy nanostructure and carbonaceous components generated, originating from the metal units and organic ligands in the 2D MOFs, respectively, ensure high conductivity and active site concentration for OER. [91][92][93][94][95] Metal nanoparticles (e. g Ni or Co) embedded in carbon components with different compositions and morphologies derived from 2D MOFs are of special interest. Xu and associates [91] synthesized Ni nanoparticles (Ni NPs) locked in few-layered nitrogen-doped graphene (Ni@NC) obtained by high-temperature annealing of Ni MOFs in nitrogen atmosphere (Figure 6a).…”

Section: Metals/alloysmentioning

confidence: 99%

“…Ni@NC exhibited a low η of 280 mV at 10 mA cm À 2 and excellent catalytic stability (duration of 10 h at 1.52 V vs. RHE) for OER (Figure 6h and i). Liu and associates [92] designed a novel approach to prepare distorted hexagonal (3,4)-connected Ni 2 (BDC) 2 (DABCO) (BDC = 1,4-benzenedicarboxylic acid, DABCO = 1,4-diazabicyclo[2.2.2]octane) framework nanoplates, which were transformed to Ni@N-doped carbon nanoplates by pyrolysis, exhibiting a η of 307 mV at 10 mA cm À 2 . Meanwhile, Dong and associates [93] reported 2D carbon framework-encapsulated highly dispersed Co nanoparticles on N-doped carbon nanotubes (Co-NCS@CNTs) by carbonizing 2D ZIF (ZIFÀ L) nanosheets in an atmosphere of H 2 and Ar.…”

Section: Metals/alloysmentioning

confidence: 99%

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Recent Progress of Two‐Dimensional Metal‐Organic Frameworks and Their Derivatives for Oxygen Evolution Electrocatalysis

et al. 2020

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The development of high‐performance transition metal−based electrocatalysts for the oxygen evolution reaction (OER) is paramount for electrochemical secondary metal‐air batteries and water splitting. Two‐dimensional (2D) metal‐organic framework (MOF) nanosheets have recently emerged as a novel class of efficient electrocatalysts for OER, due to a high specific surface area, ultrasmall thickness and abundance of active sites. Here, we summarize recent progress in the preparation and characterization of 2D transition metal−based MOFs (e. g. Ni, Co and Cu), as well as their composites and derivatives, including metals/alloys, metal oxides/chalcogenides and metal phosphides/hydroxides, as OER electrocatalysts reported over the past several years. Design principles and preparation routes are presented. The performance of the electrocatalysts is directly compared in terms of overpotential (η) (thermodynamics) and electrocatalytic current density (kinetics), as well as operational stability (economics). Many of these materials exhibit superior catalytic activity compared to the noble metal−based catalysts such as RuO2 (η<300 mV at 10 mA cm−2), and considerable stability with negligible decay with operation over several hours to days. Challenges and perspectives of applying 2D MOFs and their derivatives for OER electrocatalysis are also discussed.

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“…Moreover, Lin et al [ 111 ] presented a novel hexagonal 2D MOF nanoplates by a topology‐guided bottom‐up synthesis method. The hexagon channel was used as a template, and the new 2D nickel‐based MOF hexagonal nanoplate was synthesized under the regulation of pyridine.…”

Section: Catalytic Mechanismmentioning

confidence: 99%

Review on Synthesis and Catalytic Coupling Mechanism of Highly Active Electrocatalysts for Water Splitting

2021

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Hydrogen (H2), derived from electrochemical water splitting, is usually believed to be a promising alternative for fossil energy due to its environmentally friendly and renewable traits. At present, IrO2 and Pt/C are regarded as the state‐of‐the‐art electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively, but their poor durability and high cost severely impede the wide applications. Thus, constructing highly active, stable, and low‐cost electrocatalysts for OER and HER is significantly important. Herein, the synthesis methods, construction of active sites, and catalytic coupling mechanisms for water splitting are fully summarized. In particular, the alloy effect, interface effect, various defects, and doping effects in electrocatalysts are the main reasons to improve the intrinsic catalytic activities. Finally, the future development trend of electrochemical catalysts for water splitting is prospected in the conclusion. It is believed that a comprehensive understanding of materials design strategies is provided, which is beneficial to the development of water splitting.

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Metal–Organic Framework Hexagonal Nanoplates: Bottom-up Synthesis, Topotactic Transformation, and Efficient Oxygen Evolution Reaction

Cited by 166 publications

References 42 publications

Two‐Dimensional Metal–Organic Frameworks‐Based Electrocatalysts for Oxygen Evolution and Oxygen Reduction Reactions

Two‐Dimensional Metal–Organic Frameworks‐Based Electrocatalysts for Oxygen Evolution and Oxygen Reduction Reactions

Recent Progress of Two‐Dimensional Metal‐Organic Frameworks and Their Derivatives for Oxygen Evolution Electrocatalysis

Review on Synthesis and Catalytic Coupling Mechanism of Highly Active Electrocatalysts for Water Splitting

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