Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

Yang, Yongchao; Yang, Yuxin; Liu, Yangyang; Zhao, Shenlong; Tang, Zhiyong

doi:10.1002/smsc.202100015

Cited by 104 publications

(60 citation statements)

References 157 publications

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“…[19] However, coprecipitation is only applicable to metal oxides to synthesize single atoms, which are prone to agglomeration of single atoms during precipitation, which also reduces the efficiency and selectivity of SACs. [20]…”

Section: Wet-chemistry Methodsmentioning

confidence: 99%

Metal‐Organic‐Framework‐Based Single‐Atomic Catalysts for Energy Conversion and Storage: Principles, Advances, and Theoretical Understandings

Yang

Yan

Kong

et al. 2021

Advanced Sustainable Systems

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Metal NPs have promising applications in catalysis. Metal active sites are usually located in the crosssections, edges, and corners of crystals and, depending on their locations, the crystals exhibit different catalytic activities. [3] Achieving maximum metal utilization by reducing the size of metal NPs to the atomic level is an effective method of improving the catalytic activity of metal catalysts. It has been found that singleatom catalysts have greatly improved catalytic performance, activity, and selectivity, and that metal single-atom catalysts (SACs) have high electrocatalytic activity and stability and are an effective strategy for achieving cost-effective catalysts for fuel cell applications. [4] An SAC was first proposed by Zhang et al. in 2011 and is defined as a carrier consisting of only isolated single atomic active sites. [1b] In recent years, SACs have emerged as having great potential for development. Their maximum atomic utilization efficiency and excellent performance have provided excellent catalytic performance in a variety of important reactions. [5] In addition, SACs have great potential in identifying and modulating the structure of the active canter to improve catalytic performance. SACs can minimize the use of noble metals and are highly advantageous in achieving 100% atomic utilization efficiency. Due to the single-atom nature of their active sites, SACs provide enhanced catalytic activity and have attracted much research attention in recent years. To avoid the agglomeration of single atoms and to achieve the separation and isolation of individual atoms, many strategies have been reported for synthesizing single atoms, such as wet chemical methods, electrochemical deposition, chemical vapor deposition, and high-temperature pyrolysis. However, it is challenging to maintain a high loading while avoiding agglomeration of individual atoms during the synthesis process. If the metal loading is too high, the high surface energy of single atoms tends to cause agglomeration of atoms. Therefore, the homogeneous dispersion and atomic size of active sites have been the focus of scientific research for decades. In general, the most common approach to preparing single-atom catalysts is to find suitable carriers to anchor single-atom metal sites (SMSs), [6] e.g., as active complexes, cations, or metal atoms) on the surface of heterogeneous carriers such as metals, metal oxides, silica, or carbon materials. However, these anchor sites are limited and disordered, leadingIn recent years, the development of alternative energy-saving, efficient, and clean catalysts for various electrochemical reactions has attracted increasing research attention. Among the various types of catalysts, singleatom catalysts (SACs) have unique properties. However, individual atoms are prone to agglomeration due to their high surface energy, which poses a major challenge to the development of SACs. Metal-organic frameworks (MOFs) have the advantages of high porosity and specific surface area, and MOF materials can be ideal ca...

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Section: Wet-chemistry Methodsmentioning

confidence: 99%

Metal‐Organic‐Framework‐Based Single‐Atomic Catalysts for Energy Conversion and Storage: Principles, Advances, and Theoretical Understandings

Yang

Yan

Kong

et al. 2021

Advanced Sustainable Systems

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“…These structural advantages allow a comprehensive understanding of the structure–performance relationship at the atomic level. Up to now, MOFs with different morphologies, such as nanoparticles, nanocages, nanowires, nanotubes, and nanorods, have been widely studied as specific catalysts for CO 2 RR 48 …”

Section: Mofs For Co2rrmentioning

confidence: 99%

“…Up to now, MOFs with different morphologies, such as nanoparticles, nanocages, nanowires, nanotubes, and nanorods, have been widely studied as specific catalysts for CO 2 RR. 48 In 2012, Hinogami et al 49 first studied the electrocatalytic performance of MOF in CO 2 RR. The copper-rubeanate MOF showed a high CO selectivity above 90% from −1.2 to −1.6 V versus the standard hydrogen electrode, which can be attributed to the synergistic effect between active metal sites and proton-conductive ligand.…”

Section: Mofs For Co Rrmentioning

confidence: 99%

2D π‐conjugated metal–organic frameworks for CO₂ electroreduction

Yang

Wang

2022

SmartMat

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Electrochemically converting CO2 molecules into valuable chemicals and fuels opens up a promising route to utilize CO2 source. To overcome the low efficiency and durability that hinder its practical applications, tremendous research efforts have been devoted to nano‐level or atomic‐level catalyst design. The advent of metal–organic frameworks (MOFs) provides novel opportunities for CO2 reduction catalysts, which may integrate the respective advantages of traditional catalysts and single‐atom catalysts. In this review, we summarize the recent advances in two‐dimensional (2D) π‐conjugated MOF catalysts and discuss their practical applications in CO2 reduction reaction (CO2RR). First, we systematically introduce the development of electrocatalysts for CO2RR applications. Meanwhile, various types of 2D porphyrin/phthalocyanine‐based MOFs and corresponding electrocatalytic performances arising from active‐site engineering, surface reconstruction, and thickness control are briefly overviewed. Finally, we highlight their major challenges and opportunities facing CO2RR, and hope that this review can offer new insight into MOF catalyst design.

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“…13–15 Therefore, an available carbon source with a facile synthetic strategy is highly desired for the development of highly efficient and environment-friendly electrocatalyst. 16,17…”

Section: Introductionmentioning

confidence: 99%

“…[13][14][15] Therefore, an available carbon source with a facile synthetic strategy is highly desired for the development of highly efficient and environment-friendly electrocatalyst. 16,17 Unlike chemical precursors, biomass materials can be obtained directly from nature, which are easily accessible and economical. 18,19 Moreover, most biomass materials are rich in heteroatoms including oxygen (O), nitrogen (N), phosphorus (P), and sulfur (S).…”

Section: Introductionmentioning

confidence: 99%

Expanding the interlamellar spacing of biomass-derived hybrids with intercalated nanotubes for enhanced oxygen reduction reaction

et al. 2022

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Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

Cited by 104 publications

References 157 publications

Metal‐Organic‐Framework‐Based Single‐Atomic Catalysts for Energy Conversion and Storage: Principles, Advances, and Theoretical Understandings

Metal‐Organic‐Framework‐Based Single‐Atomic Catalysts for Energy Conversion and Storage: Principles, Advances, and Theoretical Understandings

2D π‐conjugated metal–organic frameworks for CO₂ electroreduction

Expanding the interlamellar spacing of biomass-derived hybrids with intercalated nanotubes for enhanced oxygen reduction reaction

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Metal–Organic Frameworks for Electrocatalysis: Beyond Their Derivatives

Cited by 104 publications

References 157 publications

Metal‐Organic‐Framework‐Based Single‐Atomic Catalysts for Energy Conversion and Storage: Principles, Advances, and Theoretical Understandings

Metal‐Organic‐Framework‐Based Single‐Atomic Catalysts for Energy Conversion and Storage: Principles, Advances, and Theoretical Understandings

2D π‐conjugated metal–organic frameworks for CO2 electroreduction

Expanding the interlamellar spacing of biomass-derived hybrids with intercalated nanotubes for enhanced oxygen reduction reaction

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Product

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2D π‐conjugated metal–organic frameworks for CO₂ electroreduction