Nanoscale cobalt metal–organic framework as a catalyst for visible light-driven and electrocatalytic water oxidation

Xu, Qingyu; Li, Hui; Yue, Fan; Chi, Le; Wang, Jide

doi:10.1039/c5nj03113c

Cited by 41 publications

(28 citation statements)

References 37 publications

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“…Therefore, it is of great significance and challenge to develop new strategies to explore direct MOFs as highly efficient electrocatalyst toward OER. To date, among the reported transition metal MOFs, Co‐based MOFs showed good electrocatalytic performance for OER . For example, Co‐ZIF‐67 displayed long‐term electrochemical durability for at least 24 h .…”

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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“…[17,34,35] In the last few decades, scientists have studied Co-NÀ C composites, [32] Co oxides/hydroxides, [36] Co chalcogenides, [37] Co phosphides, [38] Co phosphates [39] and Co MOFs [40] for electrocatalysis. It is indicated by density functional theory (DFT) calculation that different metals would more or less possess deviated electrochemical behaviors on account of d- investigation, cobalt-based compounds display excellent redox properties for catalysis and have attracted considerable attention from researchers all over the world.…”

Section: Monometallic-mof-based Catalystsmentioning

confidence: 99%

“…[40,44,45,55,56] The OER is an important process occurring at the anode of the energy storage and conversion devices and is under continuous study on account of the sluggish kinetics. [40,44,45,55,56] The OER is an important process occurring at the anode of the energy storage and conversion devices and is under continuous study on account of the sluggish kinetics.…”

Section: Co Mofs and Their Composites For The Oermentioning

confidence: 99%

“…It is indicated by density functional theory (DFT) calculation that different metals would more or less possess deviated electrochemical behaviors on account of d- investigation, cobalt-based compounds display excellent redox properties for catalysis and have attracted considerable attention from researchers all over the world. [17,34,35] In the last few decades, scientists have studied Co-NÀ C composites, [32] Co oxides/hydroxides, [36] Co chalcogenides, [37] Co phosphides, [38] Co phosphates [39] and Co MOFs [40] for electrocatalysis. Since 1995, when Yaghi et al reported the first material named Metal-Organic Frameworks (MOFs) in Nature, which was a cobaltbased complex, a plenty of new Co MOFs have been synthesized and applied for electrocatalysis.…”

Section: Monometallic-mof-based Catalystsmentioning

confidence: 99%

“…In recent years, the application of Co MOFs as catalysts for oxygen evolution reaction (OER) has increased. [40,44,45,55,56] The OER is an important process occurring at the anode of the energy storage and conversion devices and is under continuous study on account of the sluggish kinetics. [30,57,58] Flügel et al synthesized a new mixed-valent cobalt-based ZIF, Co II 3 Co III 2 (C 3 H 3 N 2 ) 12 (Figure 2a), with high thermal stability.…”

Section: Co Mofs and Their Composites For The Oermentioning

confidence: 99%

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

Sun

Xue

et al. 2019

ChemElectroChem

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Pristine metal‐organic frameworks (MOFs) and their composites, which have received wide attention in recent years, especially in the field of electrocatalysis, are emerging as distinctive electrocatalysts for the oxygen reduction reaction (ORR), hydrogen evolution reaction (HER), carbon dioxide reduction reaction (CO2RR), oxygen evolution reaction (OER), and many other electrochemical redox reactions. In this review, the attention is focused on the development of monometallic‐MOFs and multimetallic‐MOFs (including bimetallic‐MOFs and trimetallic‐MOFs) for electrocatalysis in recent years, including their design, catalytic performance and strategies for activity improvement. Finally, major challenges in utilizing pristine MOFs and their composites for electrocatalysis are highlighted.

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Critical Review, Recent Updates on Zeolitic Imidazolate Framework‐67 (ZIF‐67) and Its Derivatives for Electrochemical Water Splitting

et al. 2022

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High surface area provides abundant active sites for catalytic reaction High Surface area Open crystal structure can exposes more interior atoms to provide more active sites Open crystal structure Organic linker acts as source of nitrogen source to improve the conductivity of overall matrix Organic linker Metal nanoparticles and metal complexes can be encapsulated inside MOFs to form guest@MOFs Tunable pore structure Figure 2.Advantages of the ZIF-67 for electrocatalytic application. The schematics of ZIF-67 was reproduced under the terms of the CC BY license. [468]

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Nanoscale cobalt metal–organic framework as a catalyst for visible light-driven and electrocatalytic water oxidation

Abstract: Co-ZIF-67 is proposed as an efficient water oxidation catalyst under visible light.

Cited by 41 publications

References 37 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

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

Critical Review, Recent Updates on Zeolitic Imidazolate Framework‐67 (ZIF‐67) and Its Derivatives for Electrochemical Water Splitting

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