Transition metal-based bimetallic MOFs and MOF-derived catalysts for electrochemical oxygen evolution reaction

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(4), P. 1897 - 1927

Published: Jan. 1, 2021

The review summarizes transition metal-based bimetallic MOFs and their derived materials as electrocatalytic for the OER. mechanisms of OER probed by DFT calculation andin situcharacterization techniques are also discussed.

Language: Английский

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Recent development in electrocatalysts for hydrogen production through water electrolysis

International Journal of Hydrogen Energy, Journal Year: 2021, Volume and Issue: 46(63), P. 32284 - 32317

Published: July 30, 2021

Language: Английский

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Bimetallic metal–organic frameworks and MOF-derived composites: Recent progress on electro- and photoelectrocatalytic applications

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 451, P. 214264 - 214264

Published: Oct. 25, 2021

Language: Английский

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Surface carbon layer controllable Ni3Fe particles confined in hierarchical N-doped carbon framework boosting oxygen evolution reaction

Advanced Powder Materials, Journal Year: 2021, Volume and Issue: 1(2), P. 100020 - 100020

Published: Dec. 10, 2021

Developing high-efficiency and low-cost catalysts towards oxygen evolution reaction (OER) is extremely important for overall water splitting rechargeable metal−air batteries. Herein we propose a promising organometallic coordination polymer (OCP) induced strategy to construct hierarchical N-doped carbon framework with NiFe nanoparticles encapsulated inside (Nx[email protected]–C) as highly active stable OER catalyst. The synthesis of OCP precursor depends on the unique molecular structure iminodiacetonitrile (IDAN), which can coordinate metal ions form Ni2Fe(CN)6 prussian blue analogs (PBA) structure. Unlike previous PBA-induced methods, thickness layer covering surface core be well controlled during pyrolysis through adjusting amount IDAN, builds wonderful bridge investigating relationship between catalytic performance. Both experimental characterizations theoretical studies validate that suitable layers leads optimal activity stability. By optimizing composition, optimized Ni3[email protected]–C exhibits low overpotentials (260 ​mV at 10 ​mA ​cm−2; 320 50 ​cm−2), improved kinetics (79 dec−1), robust long-term stability, exceeds those benchmark RuO2.

Language: Английский

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NiCo-Based Electrocatalysts for the Alkaline Oxygen Evolution Reaction: A Review

ACS Catalysis, Journal Year: 2021, Volume and Issue: 11(20), P. 12485 - 12509

Published: Sept. 27, 2021

Electrocatalytic water splitting is a sustainable way to produce hydrogen energy, but the oxygen evolution reaction (OER) at anode has sluggish kinetics and low energy conversion efficiency, which major bottleneck for large-scale production. The design synthesis of robust low-cost OER catalysts are crucial OER. NiCo-based electrocatalysts have suitable atomic electronic structures, show high activity stability during process. Recently, significant progress been made in regulating structure composition understanding nature catalysis, especially mechanism, catalytic active sites, structure–activity relationship. In this work, we summarized discussed latest development OER, with particular emphasis on catalyst synthesis, strategies boosting performance, catalysis from experimental theoretical perspectives. some descriptors, relationships based unveiled. Finally, challenges futuristic outlooks improving performance proposed, hope review can provide guidance more efficient electrocatalysts.

Language: Английский

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Water splitting performance of metal and non-metal-doped transition metal oxide electrocatalysts

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 474, P. 214864 - 214864

Published: Oct. 12, 2022

Language: Английский

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Promoting Surface Reconstruction of NiFe Layered Double Hydroxide for Enhanced Oxygen Evolution

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(48)

Published: Oct. 30, 2022

A dynamic surface reconstruction of oxide electrocatalysts in alkaline media is widely observed especially for layered double hydroxide (LDH), but little known about how to promote the toward desired surfaces improved oxygen evolution reaction (OER). Here, NiFe LDH nanosheets successfully induced a higher degree via situ sulfur doping than that by natural electrochemical activation. Theoretical calculations, operando Raman, and various ex characterizations reveal S anion-induced effect can lower energy barrier facilitate phase transformation into highly active S-doped oxyhydroxides. The generated S-NixFeyOOH optimize intermediate adsorption OER kinetics. reconstructed S-oxyhydroxides catalyst presents superior activity long-term durability compared undoped ones. This work provides structure–composition–activity relationship during restructuring pre-catalysts.

Language: Английский

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Trilayer Metal–Organic Frameworks as Multifunctional Electrocatalysts for Energy Conversion and Storage Applications

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(8), P. 3411 - 3428

Published: Feb. 15, 2022

The need for enhanced energy storage and improved catalysts has led researchers to explore advanced functional materials sustainable production storage. Herein, we demonstrate a reductive electrosynthesis approach prepare layer-by-layer (LbL) assembled trimetallic Fe–Co–Ni metal–organic framework (MOF) in which the metal cations within each layer or at interface of two layers are linked one another by bridging 2-amino-1,4-benzenedicarboxylic acid linkers. Tailoring catalytically active sites an LbL fashion affords highly porous material that exhibits excellent trifunctional electrocatalytic activities toward hydrogen evolution reaction (ηj=10 = 116 mV), oxygen 254 as well reduction (half-wave potential 0.75 V vs reference electrode) alkaline solutions. dispersion-corrected density theory calculations suggest prominent catalytic activity MOF HER, OER, ORR is due initial negative adsorption water on nodes elongated O–H bond length H2O molecule. MOF-based Zn–air battery remarkable performance cycling stability over 700 cycles outperform commercial noble benchmarks. When asymmetric device configuration, activated carbon||Fe–Co–Ni supercapacitor provides superb specific power up 56.2 W h kg–1 42.2 kW kg–1, respectively. This work offers not only novel multimetallic but also benchmark multifunctional electrocatalyst splitting batteries.

Language: Английский

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Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3694 - 3812

Published: March 22, 2024

Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable

Language: Английский

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Energy‐Saving Hydrogen Production by Seawater Electrolysis Coupling Sulfion Degradation

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(16)

Published: Feb. 12, 2022

Electrolysis of costless and infinite seawater is a promising way toward grid-scale hydrogen production without causing freshwater stress. Practical potential this technology, however, hindered by low energy efficiency anode corrosion the detrimental chlorine chemistry in addition to unaffordable electricity expense. Herein, energy-saving reported chlorine-free splitting coupling sulfion oxidation. It yields at cell voltage 0.97 V, cutting consumption 2.32 kWh per m3 H2 300 mA cm-2 . Compared alkaline water electrolysis, expense primarily saved 60% with 50% lower equivalent input. Benefiting from ultralow voltage, hazardous fully avoided regardless Cl- crossover. Meanwhile, it also allows fast degradation S2- pollutant body value-added sulfur 80% efficiency, for further reducing cost protection ecosystem. Connecting such hybrid electrolyzer commercial solar can harvest better sustainability. This work may offer new opportunities low-cost unlimited ocean resources environmental protection.

Language: Английский

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