Pillared nickel-based metal-organic frameworks as electrode material with high electrochemical performance

Jiang, Xianyan; Deng, Songqiang; Sun, Li; Liu, Junjie; Qi, N. D.; Chen, Zhiquan

doi:10.1016/j.jelechem.2020.114802

Cited by 14 publications

(14 citation statements)

References 45 publications

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“…However, the Ni-MOFs constructed by metal ions and two kinds of organic ligands materials are rarely reported. The electrochemical performance of the Ni 2 (bdc) 2 (dabco) MOF, which is self-assembled by Ni 2+ , 1,4-benzenedicarboxylic acid (bdc), and 1,4-diazabicyclo[2.2.2]-octane (dabco), has been reported by us and shows good potential applications in energy storage . Thus, to further improve the charge storage capacity of Ni 2 (bdc) 2 (dabco), we prepared the Cu 2+ and Zn 2+ bimetallic doped Ni 2 (bdc) 2 (dabco) (CuZnNi–MOF).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Performance of Bimetallic Doped Ni-Based Metal–Organic Frameworks by Redox Additives in an Alkaline Electrolyte

Jiang

Deng

Liu

et al. 2021

ACS Appl. Energy Mater.

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A Cu 2+ and Zn 2+ bimetallic doped metal−organic framework Ni 2 (bdc) 2 (dabco) (CuZnNi−MOF, where bdc is 1,4benzenedicarboxylic acid and dabco is 1,4-diazabicyclo[2.2.2]-octane), has been successfully synthesized by the solvothermal method. The carbon-held metal compound nanoparticles (MCN@C) and metal oxide composite (CuOZnONiO) were subsequently obtained by using the CuZnNi−MOF as the precursor. The electrochemical performance of the prepared samples was evaluated in an electrolyte with and without a redox additive (K 4 Fe(CN) 6 ). The specific capacity of the samples tested in the electrolyte with Fe(CN) 6 4− /Fe(CN) 6 3− has a high value of 112.5 mA h g −1 at 1 A g −1 , which is much higher than that measured in the electrolyte without the redox additive, indicating that the Fe(CN) 6 4− /Fe(CN) 6 3− redox couple can effectively enhance the electrochemical performance of electrode materials. An asymmetric supercapacitor (ASC) CuZnNi−MOF//PEDOT-AC (poly(3,4ethylenedioxythiophene)-activated carbon) was further assembled and tested in 3 M KOH + 0.05 MK 4 Fe(CN) 6 electrolyte. The ASC shows a high energy density of 25.2 W h kg −1 , a maximum power density of 8 808 W kg −1 , and also superb cycling performance. Moreover, two assembled ASCs in series connection are found to be able to light up a red light-emitting diode for at least 20 min.

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Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Performance of Bimetallic Doped Ni-Based Metal–Organic Frameworks by Redox Additives in an Alkaline Electrolyte

Jiang

Deng

Liu

et al. 2021

ACS Appl. Energy Mater.

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“…26 The symmetric and asymmetric stretching vibrations of the C–O bond in Zn-BDC can be distinguished by the bands at 1589 and 1389 cm −1 . 31 Besides, a relatively large peak at 3178 cm −1 indicates the loose binding of H 2 O with Zn-BDC. 32 FTIR spectra confirm that both Zn-BTC and Zn-BDC have carboxyl groups.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical conversion of CO₂ to syngas with a stable H₂/CO ratio in a wide potential range over ligand-engineered metal–organic frameworks

Cao

Liu

et al. 2022

J. Mater. Chem. A

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“…The increased pore volume beyond the estimate can be traced to interparticle mesopores above 5 nm (Table 1 and Figure S6a). Open microporous channels can provide active sites for electrochemical reaction and open mesoporous channels will improve the diffusion rate of electrolyte ions [ 58 ]. b The total pore volumes were determined at p/p0 = 0.95 from the adsorption branch for pores ≤ 25 nm.…”

Section: Characterizationmentioning

confidence: 99%

Synthesis of Ketjenblack Decorated Pillared Ni(Fe) Metal-Organic Frameworks as Precursor Electrocatalysts for Enhancing the Oxygen Evolution Reaction

Beglau¹,

Rademacher²,

Oestreich³

et al. 2023

Preprint

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Metal-organic frameworks (MOFs) are investigated for the oxygen evolution reaction (OER) due to their structure diversity, high specific surface area, adjustable pore size and abundant active sites. However, the poor conductivity of most MOFs restricts this application. Herein, through a facile one-step solvothermal method, the Ni-based pillared metal-organic framework [Ni2(BDC)2DABCO] (BDC = 1,4-benzenedicarboxylate, DABCO = 1,4-diazabicyclo[2.2.2]octane), its bimetallic nickel-iron form [Ni(Fe)(BDC)2DABCO] and their modified Ketjenblack (mKB) composites were synthesized and tested towards OER in an alkaline medium (KOH 1 mol L–1). A synergistic effect of the bimetallic nickel-iron MOF and the conductive mKB additive enhance the catalytic activity of the MOF/mKB composites. All MOF/mKB composite samples (7, 14, 22, 34 wt.% mKB) indicated much higher OER performances than the MOFs and mKB alone. The Ni-MOF/mKB14 composite (14 wt. % of mKB) demonstrated an overpotential of 294 mV at a current density of 10 mA cm–2 and Tafel slope of 32 mV dec–1, which is comparable with commercial RuO2 commonly used as a benchmark material for OER. The catalytic performance of Ni(Fe)MOF/mKB14 (0.57 wt% Fe) was improved further to an overpotential of 279 mV at a current density of 10 mA cm–2. The low Tafel slope of 25 mV dec–1 as well as a low reaction resistance due to electrochemical impedance spectroscopy (EIS) measurement confirm the excellent OER performance of the Ni(Fe)MOF/mKB14 composite. For practical applications, the Ni(Fe)MOF/mKB14 electrocatalyst was impregnated into commercial nickel foam (NF), where overpotentials of 247 and 291 mV at current densities of 10 and 50 mA cm–2, respectively, were realized. The activity was maintained for 30 h at the applied current density of 50 mA cm–2. The electrocatalytic system consisting of earth-abundant Ni and Fe metals only would be attractive for the development of efficient, practical and economical energy conversion materials for efficient OER activity.

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Pillared nickel-based metal-organic frameworks as electrode material with high electrochemical performance

Cited by 14 publications

References 45 publications

Enhanced Electrochemical Performance of Bimetallic Doped Ni-Based Metal–Organic Frameworks by Redox Additives in an Alkaline Electrolyte

Enhanced Electrochemical Performance of Bimetallic Doped Ni-Based Metal–Organic Frameworks by Redox Additives in an Alkaline Electrolyte

Electrochemical conversion of CO₂ to syngas with a stable H₂/CO ratio in a wide potential range over ligand-engineered metal–organic frameworks

Synthesis of Ketjenblack Decorated Pillared Ni(Fe) Metal-Organic Frameworks as Precursor Electrocatalysts for Enhancing the Oxygen Evolution Reaction

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Pillared nickel-based metal-organic frameworks as electrode material with high electrochemical performance

Cited by 14 publications

References 45 publications

Enhanced Electrochemical Performance of Bimetallic Doped Ni-Based Metal–Organic Frameworks by Redox Additives in an Alkaline Electrolyte

Enhanced Electrochemical Performance of Bimetallic Doped Ni-Based Metal–Organic Frameworks by Redox Additives in an Alkaline Electrolyte

Electrochemical conversion of CO2 to syngas with a stable H2/CO ratio in a wide potential range over ligand-engineered metal–organic frameworks

Synthesis of Ketjenblack Decorated Pillared Ni(Fe) Metal-Organic Frameworks as Precursor Electrocatalysts for Enhancing the Oxygen Evolution Reaction

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Electrochemical conversion of CO₂ to syngas with a stable H₂/CO ratio in a wide potential range over ligand-engineered metal–organic frameworks