Fe/Ni bimetal organic framework as efficient oxygen evolution catalyst with low overpotential

Zheng, Fuqin; Zhang, Ziwei; Xiang, Dong; Li, Ping; Du, Cuicui; Zhuang, Zhihua; Li, Xiaokun; Chen, Wei

doi:10.1016/j.jcis.2019.08.005

Cited by 94 publications

(44 citation statements)

References 37 publications

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“…The major diffraction peaks of chromium in Zr/Cr‐SO 3 H MOF can be seen at 24.5, 33.6, 36.2, and 41.5°, indicating the formation of bimetallic MOF. Besides, the diffraction peaks intensity of Zr‐SO 3 H MOF increased after incorporated chromium metal ions, which indicates the good crystallinity . The similarity of the diffraction peaks of both samples reveals that the obtained MOFs have the identical topology structure which is composed by coupled metal ions center with 2‐sulfoterepthalic acid ligands to grow a two‐dimensional structure, which also validated by microscopic analysis.…”

Section: Resultssupporting

confidence: 56%

“…Besides, the diffraction peaks intensity of Zr-SO 3 H MOF increased after incorporated chromium metal ions, which indicates the good crystallinity. 44 The similarity of the diffraction peaks of both samples reveals that the obtained MOFs have the identical topology structure which is composed by coupled metal ions center with 2-sulfoterepthalic acid ligands to grow a twodimensional structure, 45 which also validated by microscopic analysis. Further, the acidic stability of the synthesized MOF was studied and the results presented in Figure S1.…”

Section: Characterizations Of Mofsmentioning

confidence: 67%

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Improving the performance of sulfonated polymer membrane by using sulfonic acid functionalized hetero‐metallic metal‐organic framework for DMFC applications

et al. 2019

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Summary Proton transport played a crucial part in the fuel cells, sensors, and batteries. The electrolyte used in fuel cells should possess high proton conductivity and good chemical stability. Herein, taking advantage of the high proton conductivity of metal‐organic framework (MOF) and the good chemical stability of branched polymers, a new heterometallic mediated MOF (Zr‐Cr‐SO3H) is synthesized and utilized as a filler in the highly branched sulfonated polymer (BSP). In addition, Zr‐SO3H MOF is also prepared for comparison. Transmission electron microscope study shows that the prepared MOF particles are spherical in size and interconnected through nanosheets. The optimized quantity of MOFs inside the polymer matrix improves the water sorption, mechanical property, and proton conductivity. The composite membranes display an improved open‐circuit voltage than the pristine BSP membrane. By comparing the Zr‐SO3H MOF incorporated composite membrane, Zr‐Cr‐SO3H MOF incorporated composite membranes display higher proton conductivity and peak power density in a single‐cell test. In particular, the single‐cell fabricated with Zr‐Cr‐SO3H MOF incorporated composite membrane is able to reach the peak power density of 64.6 mWcm−2 at 60°C, which is 26% greater than the Nafion 212 membrane. Furthermore, this work offers a new strategy for the utilization of hetero‐metal MOF as a filler for proton exchange membrane applications.

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Section: Resultssupporting

confidence: 56%

Section: Characterizations Of Mofsmentioning

confidence: 67%

Improving the performance of sulfonated polymer membrane by using sulfonic acid functionalized hetero‐metallic metal‐organic framework for DMFC applications

et al. 2019

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“…The electrochemical stability is another important indicator to evaluate the performance of the electrocatalyst. 36 As shown in Figure 4 d, after 2000 consecutive cyclic voltammetry (CV) scanning cycles at 100 mV s –1 between 1.3 and 1.8 V [vs reversible hydrogen electrode (RHE)], the OER electrocatalytic performance of Fe(5%)-Ni@NC shows no apparent change. Moreover, the chronoamperometric measurement for Fe(5%)-Ni@NC was performed constantly at 1.50 V (vs RHE).…”

Section: Resultsmentioning

confidence: 99%

MOF-Derived Fe-Doped Ni@NC Hierarchical Hollow Microspheres as an Efficient Electrocatalyst for Alkaline Oxygen Evolution Reaction

et al. 2021

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The development of low-cost and efficient electrocatalysts for oxygen evolution reaction (OER) is of great importance for producing hydrogen via water splitting. Metal–organic frameworks (MOFs) provide an opportunity for the facile preparation of high-efficiency OER electrocatalysts. In this work, we prepared iron-doped nickel nanoparticles encapsulated in nitrogen-doped carbon microspheres (Fe-Ni@NC) with a unique hierarchical porous structure by directly pyrolyzing the MOF precursor for effectively boosting OER. The Fe doping has a significant enhancement effect on the catalytic performance. The optimized Fe (5%)-Ni@NC catalyst represents a remarkable activity with an overpotential of 257 mV at 10 mA cm –2 and superior stability toward OER in 1.0 M KOH.

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“…In the meantime, a humble Tafel slope of 49 mV/dec was acquired. After a few months, Zheng et al 124 prepared another series of Fe/Ni‐MOFs, with 1,3,5‐trimesic acid (H 3 BTC) applied as an organic ligand (FeNi‐BTC) through a solvothermal method. The prepared MOFs generate ample unsaturated metal active sites for OER.…”

Section: Multimetallic Mofs‐based Oer Electrocatalystmentioning

confidence: 99%

Metal‐organic frameworks‐derived novel nanostructured electrocatalysts for oxygen evolution reaction

2020

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Engineering cost‐effective catalysts with exceptional performance for the electrochemical oxygen evolution reaction (OER) remains crucial for the accelerated development of renewable energy techniques, and especially so, given the pivotal role of OER in water electrolysis. On the basis of the metal nodes (clusters) and organic linkers, metal‐organic frameworks (MOFs) and their derivatives are rapidly gaining ground in the fabrication of electrocatalysts, with promising catalytic activity and sound durability in OER, thanks to their controllable pore structures, abundant unsaturated active sites of metal ion, extensive specific surface area, as well as easily functionalized/modified surfaces. This review presents an in‐depth understanding of the established progress of MOFs‐derived materials for OER electrocatalysis. The material designing strategies of the pristine, monometallic, and multimetallic MOFs‐based catalysts are summarized to indicate the infinite possibilities of the morphology and the composition of MOF‐derived materials. While emphasis is laid on the essential features of MOF‐derived materials for the electrocatalysis of the corresponding reactions, insights about the applications in OER are discussed. Finally, this paper is concluded by presenting challenges and perspectives for MOF‐derived materials’ future applications in OER electrocatalysis.

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Fe/Ni bimetal organic framework as efficient oxygen evolution catalyst with low overpotential

Cited by 94 publications

References 37 publications

Improving the performance of sulfonated polymer membrane by using sulfonic acid functionalized hetero‐metallic metal‐organic framework for DMFC applications

Improving the performance of sulfonated polymer membrane by using sulfonic acid functionalized hetero‐metallic metal‐organic framework for DMFC applications

MOF-Derived Fe-Doped Ni@NC Hierarchical Hollow Microspheres as an Efficient Electrocatalyst for Alkaline Oxygen Evolution Reaction

Metal‐organic frameworks‐derived novel nanostructured electrocatalysts for oxygen evolution reaction

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