Pristine Transition‐Metal‐Based Metal‐Organic Frameworks for Electrocatalysis

Sun, Fuwei; Li, Qing; Xue, Huaiguo; Pang, Huan

doi:10.1002/celc.201801520

Cited by 84 publications

(41 citation statements)

References 214 publications

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“…Metal–organic frameworks (MOFs), especially, pillared‐layered MOFs, are rising star materials in the field of materials science because of their ultrafine porosity, rich active metal‐sites and tunable structures, which have attracted enormous interest and have a widespread application in catalysis, energy conversion technologies, and environmentally friendly technologies . In particular, MOFs have been employed as high active electrocatalysts to improve the sluggish reaction kinetics of water oxidation [i.e., the oxygen evolution reaction (OER)] as one of the determine steps and the key processes in water splitting and metal–air batteries .…”

Section: Methodsmentioning

confidence: 99%

Rational Design of a N,S Co‐Doped Supermicroporous CoFe–Organic Framework Platform for Water Oxidation

et al. 2020

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It remains ac hallenge to rational design of an ew metal-organic framework (MOF)a sh ighly efficient direct electrocatalysts for the oxygen evolution reaction(OER). Herein, we developed as imple and effective method to explore an ew pillaredlayered MOF with syringic acid as ap romising OER electrocatalyst. The isostructuralm ono-, heterobimetallic MOF and N,S codoped MOF by mixing thiourea were quicklys ynthesized in a high yield under solvothermal condition. Moreover,t he optimized N,S co-doped MOF exhibits the lowest overpotential of 254 mV at 10 mA cm À2 on ag lass carbon electrode andas mall Ta fel slope of 50 mV dec À1 ,e specially,t his catalysta lso possesses long-term electrochemical durability for at least 16 h. According to the characterization, the incorporationo fNa nd S atoms into this heterobimetallic CoFe-based MOF could modify its pore structure,t une the electronic structure, accordingly,i mprove the mass and electron transportation,a nd facilitate the formation of active species, as ac onsequence, the improveda ctivity of this new N,S co-doped MOF for OER should be mainly be ascribed to higher electrochemical activation toward the actives peciesv ia in situ surface modification during the OER process.Metal-organic frameworks (MOFs), especially,p illared-layered MOFs, are rising star materials in the field of materials science because of their ultrafinep orosity,r ich active metal-sites and tunable structures, which have attracted enormousi nterest and have aw idespread application in catalysis, energy conversion technologies, and environmentally friendly technologies. [1][2][3][4][5][6][7][8][9][10][11][12][13] In particular,M OFs have been employed as high active electrocatalysts to improvet he sluggish reactionk inetics of water oxidation[ i.e.,t he oxygen evolution reaction (OER)] as one of the determine steps and the key processes in water splitting and metal-air batteries. [5][6][7][8][9][10][11][12][13] However,m ost of direct MOFs as electrocatalysts have poor long-term electrochemical durability in reaction media (strong acid or strongb ase), limiting their practical application in the field of water splitting since the long-term stability and high activity are equally importantf or catalysts. [14][15][16][17][18][19] Besides, it is criticalt hat improving MOF conductivity to enhancet heir intrinsic catalytic activity because of their low electronic conductivity and poor mass permeability.O ne effective strategy is to fabricate their derivatives through high temperature pyrolysis or chemical conversions, [20][21][22][23][24][25][26][27][28][29][30][31][32][33] such as metal oxides or hydroxides, [24][25][26] carbonbased derivatives, [27][28][29][30] and composite materials. [31][32][33] Although these derivatives exhibit improved electrocatalytic performance compared with the pristine MOFs precursors, during the pyrolysis, the intrinsics tructure of MOFs has been destroyed, simultaneously,t hese expensive organic ligands have been decomposed, severely hampering their practically largesca...

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Section: Methodsmentioning

confidence: 99%

Rational Design of a N,S Co‐Doped Supermicroporous CoFe–Organic Framework Platform for Water Oxidation

et al. 2020

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“…Therefore, people are committed to manufacturing efficient and alternative homogeneous and heterogeneous electrocatalysts . Due to the advantages of adjustable pore structure, large specific surface area and high design flexibility, MOF/COF materials have attracted much attention in the research of electrochemical water cracking . Because of its poor conductivity and electrochemical activity, many researches are devoted to improving the composition and structure of MOFs and COFs by post‐treatment to obtain higher OER performance.…”

Section: Electrochemical Applications Of 2d Mof/cof Nanosheetsmentioning

confidence: 99%

Two‐Dimensional MOF and COF Nanosheets: Synthesis and Applications in Electrochemistry

et al. 2020

Chemistry A European J

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Metal–organic framework (MOF) and covalent organic framework (COF) nanosheets are a new type of two‐dimensional (2D) materials with unique design principles and various synthesis methods. They are considered ideal electrochemical devices due to the ultrathin thickness, easily tunable molecular structure, large porosity and other unique properties. There are two common methods to synthesize 2D MOF/COF nanosheets: bottom‐up and top‐down. The top‐down strategy mainly includes ultrasonic assisted exfoliation, electrochemical exfoliation and mechanical exfoliation. Another strategy mainly includes interface synthesis, modulation synthesis, surfactant‐assisted synthesis. In this Review, the development of ultrathin 2D nanosheets in the field of electrochemistry (supercapacitors, batteries, oxygen reduction, and hydrogen evolution) is introduced, and their unique dimensional advantages are highlighted.

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“…A series of alternative electrocatalysts with earth abundance and high activity for ORR have been explored, such as carbon‐based non‐precious metals or alloys, transition metal hydrides and heteroatom doped porous carbon . Among these electrocatalysts, MOF‐based nanomaterials have been proved to serve as distinctive electrocatalysts for ORR over the past decade due to their large surface area, tunable chemical composition and pore structure …”

Section: Design Of Mof‐based Materials With High Activity Towards Watmentioning

confidence: 99%

Recent Approaches to Design Electrocatalysts Based on Metal–Organic Frameworks and Their Derivatives

Liu

Hou

et al. 2019

Chemistry An Asian Journal

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Rational design and synthesis of efficient electrocatalysts are important constituents in addressing the currently growing provision issues.T ypical reactions, which are important to catalyzei nt his respect, include CO 2 reduction, the hydrogen and oxygen evolution reactions as well as the oxygen reduction reaction. The most efficient catalysts known up-to-date for these processes usuallycontain expensive and scarce elements, substantially impeding implementation of such electrocatalysts at al arger scale. Metal-organic frameworks (MOFs)a nd their derivatives containing affordable components and building blocks, as an emerging class of porousf unctional materials, have been recently attracting ag reat attentiont hanks to their tunable structure and composition together with high surface area, just to name af ew. Up to now,s everal MOFs and MOF-derivatives have been reporteda se lectrode materials for the energy-related electrocatalytic application. In this review article, we summarize and analyze current approaches to design such materials. The design strategies to improve the Faradaic efficiency and selectivity of these catalysts are discussed. Last but not least, we discuss some novel strategies to enhance the conductivity,c hemical stability and efficiency of MOF-derived electrocatalysts.[a] Dr.he returned to TUM and took the Chair of Inorganica nd Metal-Organic Chemistry. He has been elected Vice President of the Deutsche Forschungsgemeinschaft (DFG) in 2016. His research focuses on group 13/transition metalc ompounds and clusters, precursors for chemical vapor deposition( CVD) and the materials chemistry of metal-organic frameworks (MOFs). Figure 2. a) Illustration of synthesis of the two-dimensional cobalt dithiolene catalyst for the HER. Reproduced with permission from reference [37].Copyright 2014, American Chemical Society. b) and c) The active sites of [NiFe] and [NiFeSe] hydrogenases in metalselenolate polymersand corresponding voltammetric characterisation of these materials concerning the electrochemical hydrogen evolution activity.b )a nd c) Reproduced with permission from reference [38].

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Pristine Transition‐Metal‐Based Metal‐Organic Frameworks for Electrocatalysis

Cited by 84 publications

References 214 publications

Rational Design of a N,S Co‐Doped Supermicroporous CoFe–Organic Framework Platform for Water Oxidation

Rational Design of a N,S Co‐Doped Supermicroporous CoFe–Organic Framework Platform for Water Oxidation

Two‐Dimensional MOF and COF Nanosheets: Synthesis and Applications in Electrochemistry

Recent Approaches to Design Electrocatalysts Based on Metal–Organic Frameworks and Their Derivatives

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