Iron-based binary metal-organic framework nanorods as an efficient catalyst for the oxygen evolution reaction

Wu, Chuchu; Zhang, Xiaoming; Li, Huanqiao; Xia, Zhangxun; Yu, Shansheng; Wang, Suli

doi:10.1016/s1872-2067(20)63686-5

Cited by 65 publications

(22 citation statements)

References 65 publications

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“…The superior OER activity of the NiTe 2 /NF@CuFe catalyst was also verified by analyzing the electrochemical active surface area (ECSA) derived from electrochemical double layer capacitance (Cdl) values determined by cyclic voltammetry (CV) at various scan rates (10,20,30,40 Figures S10a,b and 8a reveal that the NiTe 2 /NF@CuFe catalyst has the largest Cdl value of 17.01 mF cm −2 , which is about two, four, and four times those of NiTe 2 /NF@Fe (8.23 mF cm −2 ; Figure S10g,h), NiTe 2 /NF@Cu (4.43 mF cm −2 ; Figure S10e,f), and NiTe 2 /NF (3.86 mF cm −2 ; Figure S10c,d). These obvious differences show that the introduction of Cu leads to an abundance of active sites that accelerate the OER.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Figure 7d and summarized in TableS2.46−59 Clearly, the NiTe 2 /NF@CuFe catalyst exhibits robust OER activity in 1.0 M KOH.The superior OER activity of the NiTe 2 /NF@CuFe catalyst was also verified by analyzing the electrochemical active surface area (ECSA) derived from electrochemical double layer capacitance (Cdl) values determined by cyclic voltammetry (CV) at various scan rates(10,20,30,40, and 50 mV s −1 ) in the non-Faradaic potential region. The Cdl values shown in…”

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confidence: 86%

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Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe₂/NF@CuFe Oxygen-Evolution Catalyst

Jin

Zheng

Dong

et al. 2022

ACS Sustainable Chem. Eng.

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Morphology and electronic-structure modulation are of widespread interest when designing oxygen-evolution-reaction (OER) electrocatalysts for use in fuel cells. In this study, we prepared a NiTe2/NF@CuFe catalyst using replacement reactions and hydrothermal reduction. NiTe2-nanoparticle morphology was adjusted by the introduction of multiple Fe centers and Cu replacement, which resulted in a NiTe2/NF@CuFe catalyst that exhibited excellent OER performance. The thus-prepared catalyst showed a low overpotential of 228 mV and a Tafel slope of 33 mV dec–1 at 10 mA cm–2 in 1 M KOH as the electrolyte. The catalyst is remarkably stable compared to the reference catalyst during electrocatalytic oxygen evolution over 12 h. Density function theory calculations confirmed that the Cu atoms not only facilitate neighboring charge-transfer processes but also build isolated areas of NiTe2 nanoparticles. Net charges and the electron localization function reveal that the well-distributed doped Fe atoms significantly stabilize the NiTe2 nanoparticles on the surface and improve its electronic activity during the OER process. This work provides an effective concept for the synthesis of highly efficient overall water-splitting electrocatalysts.

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Section: ■ Results and Discussionmentioning

confidence: 99%

mentioning

confidence: 86%

Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe₂/NF@CuFe Oxygen-Evolution Catalyst

Jin

Zheng

Dong

et al. 2022

ACS Sustainable Chem. Eng.

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“…A serious challenge for today’s AEMWE catalyst R&D is the correlation and translation from liquid-electrolyte, three-electrode catalyst screening setups to realistic MEA-based two-electrode single- or multicell electrolyzer setups. Even though there are promising laboratory-scale catalysts, a reliable quantitative performance prediction to scaled-up water electrolyzers of industrial design and power has remained challenging, unconsidered, and in the majority of studies unmentioned. ,− Only a few studies tackle the reasons for the performance differences between three-electrode setups, and two-electrode electrolyzer cell designs are often significant for various reasons . This work contributes to the difficulties in transferring a set of new OER catalysts from the three-electrode setup to realistic single electrolyzer cells.…”

Section: Morphology and Surface Composition Of Tunable Anion-interlac...mentioning

confidence: 99%

Anion-Tuned Layered Double Hydroxide Anodes for Anion Exchange Membrane Water Electrolyzers: From Catalyst Screening to Single-Cell Performance

et al. 2022

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Anion exchange membrane water electrolysis (AEMWE) is an attractive emerging green hydrogen technology. However, the scaling of trends in activity of anode catalysts for the oxygen evolution reaction (OER) from a liquid-electrolyte, three-electrode environment to the two-electrode single-cell format has remained poorly considered. Herein, we critically investigate the scaling of kinetic and catalytic properties of a family of highly active Ni foam (NF) supported, anion (A–)-tuned NiFe(-A–)-OER catalysts. Trends in catalytic activity suggest impressive improvements of up to 91-fold in three-electrode setups (3LC) compared to uncoated NF. While we demonstrate the successful qualitative structure–performance tunability in a 5 cm2 AEMWE single cell, we also find serious limitations in the quantitative predictability of three-electrode setups for single-cell performance trends. Cell environments appear to equalize the cell performances of designer catalysts, which has important ramifications for electrode development. We succeed in analyzing and discussing some of these translation limitations in terms of previously overlooked effects summarized in the activity improvement factor f.

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“…Metal-Organic Frameworks (MOFs) are a type of inorganicorganic hybrid crystalline materials, composed of inorganic metal ions and organic ligands through coordination bonds, intermolecular forces or hydrogen bonds. [1][2][3] MOFs are a good building block and are widely used in the fields of photocatalytic, [4] drug delivery, [5] adsorption, [6] temperature sensors, [7,8] and corrosion protection. [9] Through different metal ions and organic ligands, they can flexibly and conveniently adjust their connection and surface functional groups.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure and Characterization of Two Cobalt (II) Complexes Based on Pyridine Carboxylic Acid Ligands

Wei

Liu

Wei

et al. 2021

Zeitschrift anorg allge chemie

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Two undocumented cobalt (II) complexes 3pydc)namely Co-MOF 2), were successfully synthesized by solvothermal method. The X-ray single crystal diffraction, infrared spectrometer (IR), UV-Vis spectrum and X-ray diffraction were used to characterize and analyze the structure of the two MOFs. The single crystal structure analysis showed that Co-MOF 1 reconnected by CoÀ N bond and CoÀ O bond to form a onedimensional chains. The Co-MOF 2 was connected by CoÀ O and CoÀ N bonds to form a one-dimensional chain.The results indicated that complexes Co-MOF 1 and Co-MOF 2 have a certain thermal stability and fluorescence properties.

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Iron-based binary metal-organic framework nanorods as an efficient catalyst for the oxygen evolution reaction

Cited by 65 publications

References 65 publications

Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe₂/NF@CuFe Oxygen-Evolution Catalyst

Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe₂/NF@CuFe Oxygen-Evolution Catalyst

Anion-Tuned Layered Double Hydroxide Anodes for Anion Exchange Membrane Water Electrolyzers: From Catalyst Screening to Single-Cell Performance

Synthesis, Crystal Structure and Characterization of Two Cobalt (II) Complexes Based on Pyridine Carboxylic Acid Ligands

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Iron-based binary metal-organic framework nanorods as an efficient catalyst for the oxygen evolution reaction

Cited by 65 publications

References 65 publications

Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe2/NF@CuFe Oxygen-Evolution Catalyst

Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe2/NF@CuFe Oxygen-Evolution Catalyst

Anion-Tuned Layered Double Hydroxide Anodes for Anion Exchange Membrane Water Electrolyzers: From Catalyst Screening to Single-Cell Performance

Synthesis, Crystal Structure and Characterization of Two Cobalt (II) Complexes Based on Pyridine Carboxylic Acid Ligands

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Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe₂/NF@CuFe Oxygen-Evolution Catalyst

Effect of Interfacial Strength and Anchoring in a Highly Efficient NiTe₂/NF@CuFe Oxygen-Evolution Catalyst