Synthesis and electrochemical properties of Mg-doped chromium-based metal organic framework/reduced graphene oxide composite for supercapacitor application

Farisabadi, Ali; Moradi, Morteza; Borhani, Saeed; Hajati, Shaaker; Kiani, Mohammad Ali; Tayebifard, Seyed Ali

doi:10.1007/s10854-018-8853-2

Cited by 13 publications

(5 citation statements)

References 45 publications

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“…As displayed in Figure S7c, the interlaced plot lines indicated a similar value of the discharge capacity during CP measurement, further confirming the battery-type behavior. The discharge capacities were determined to be 213 and 232 C g –1 for PCN and CNFs/PCN electrodes, respectively, at a constant value of 0.5 A g –1 , which were higher than those of classic porous MOF electrodes. − When the current value was increased up to 6 A g –1 , the corresponding capacities dropped to 162 and 169 C g –1 . The calculated Coulombic efficiencies for the PCN and CNFs/PCN electrodes were 76% and 73%, respectively.…”

Section: Results and Discussionmentioning

confidence: 95%

Porous Cobalt Metal–Organic Frameworks as Active Elements in Battery–Supercapacitor Hybrid Devices

et al. 2020

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With the trigonal linker 4,4′,4″-s-triazine-2,4,6-triyltribenzoic acid as a building block, porous cobalt metal–organic frameworks (named as PCN) have been successfully prepared and directly utilized as active materials in alkaline battery-type devices. For comparison, their carbon-supported hybrids (CNFs/PCN) have also been employed as battery-type electrodes. We found that the pristine PCN displayed a better performance than the CNFs/PCN composite electrode in electrochemical cells. To further investigate their electrochemical performances, alkaline battery–supercapacitor hybrid (BSH) devices with these materials as positive electrodes and activated carbon (AC) as the negative electrode were fabricated. The results indicate that the PCN//AC BSH devices delivered a maximum energy density of 16.0 Wh kg–1 at a power density of 749 W kg–1 within the voltage range of 0–1.5 V, which are much higher than those of CNFs/PCN//AC devices (12.4 Wh kg–1 at 753 W kg–1).

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Section: Results and Discussionmentioning

confidence: 95%

Porous Cobalt Metal–Organic Frameworks as Active Elements in Battery–Supercapacitor Hybrid Devices

et al. 2020

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“…As a result, the as-prepared sss-BSH devices deliver more superior energy densities compared to the recent Fe-CP-based devices (Table S4). 20,49 The Ragone plots on the powerenergy of the as-synthesized devices are then depicted in Figure 5c. The sss-FeSC1//AC device possesses a maximum energy density of 40.0 W h kg −1 corresponding to a power density of 799 W kg −1 and remains that of 15.8 W h kg −1 at a power-density value of 8011 W kg −1 , which is a bit higher than that of the sss-FeSC2//AC device (35.4 W h kg −1 at 801 W kg −1 ).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Fe-Based Coordination Polymers as Battery-Type Electrodes in Semi-Solid-State Battery–Supercapacitor Hybrid Devices

Wang

Liu

et al. 2021

ACS Appl. Mater. Interfaces

151

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One two-dimensional Fe-based metal−organic framework (FeSC1) and one one-dimensional coordination polymer (FeSC2) have been solvothermally prepared through the reaction among FeSO 4 •7H 2 O, the tripodal ligand 4,4′,4″-striazine-2,4,6-triyl-tribenzoate (H 3 TATB), and flexible secondary building blocks p/m-bis((1H-imidazole-1-yl)methyl)benzene (bib). Given that their abundant interlayer spaces and different coordination modes, two compounds have been employed as battery-type electrodes to understand how void space and different coordination modes affect their performances in three-electrode electrochemical systems. Both materials exhibit outstanding but different electrochemical performances (including distinct capacities and charge-transfer abilities) under three-electrode configurations, where the charge storage for each electrode material is mainly dominated by the diffusion-controlled section (i ∝ v 0.5 ) through power-law equations. Additionally, the partial phase transformations to more stable FeOOH are also detected in the longterm cycling loops. After coupling with the capacitive carbon-based electrode to assemble into the semi-solid-state battery− supercapacitor-hybrid (sss-BSH) devices, the sss-FeSC1//AC BSH device delivers excellent capacitance, superior energy and power density, and longstanding endurance as well as the potential practical property.

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“…Xu et al reported a ZIF-67/polypyrrole nanotube composite-based electrode to attain a specific capacitance of 597.6 F g –1 at a current density of 0.5 A g –1 (electrolyte = 1 M Na 2 SO 4 ) . Several other MOF-based electrodes have also been proposed to design supercapacitors with considerable levels of specific capacitance. − As the literature survey has revealed, most of the MOF composite-based supercapacitor studies have been carried out in the presence of aqueous electrolytes. The assembly and complete device performance of those systems have not been reported.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Symmetrical Supercapacitor with a Combination of a ZIF-67/rGO Composite Electrode and a Redox Additive Electrolyte

et al. 2018

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The synthesis of a highly porous composite of ZIF-67 and reduced graphene oxide (rGO) using a simple stirring approach is reported. The composite has been investigated as an electrode to be assembled in a supercapacitor. In the presence of an optimized redox additive electrolyte (RAE), that is, 0.2 M K 3 [Fe(CN) 6 ] in 1 M Na 2 SO 4 , the ZIF-67/rGO composite electrode has combined the properties of improved conductivity, high specific surface area, and low resistance. The proposed composite electrode in the three-electrode system shows an ultrahigh specific capacitance of 1453 F g –1 at a current density of 4.5 A g –1 within a potential window of −0.1 to 0.5 V. Further, the ZIF-67/rGO composite electrode was used to fabricate a symmetrical supercapacitor whose operation in the presence of the RAE has delivered high values of specific capacitance (326 F g –1 at a current density of 3 A g –1 ) and energy density (25.5 W h kg –1 at a power density of 2.7 kW kg –1 ). The device could retain about 88% of its initial specific capacitance after 1000 repeated charge–discharge cycles. The practical usefulness of the device was also verified by combining two symmetrical supercapacitors in series and then lighting a white light-emitting diode (illumination for 3 min). This study, for the first time, reports the application of a ZIF-based composite (ZIF-67/rGO) in the presence of an RAE to design an efficient supercapacitor electrode. This proposed design is also scalable to a flexible symmetric device delivering high values of specific capacitance and energy density.

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Synthesis and electrochemical properties of Mg-doped chromium-based metal organic framework/reduced graphene oxide composite for supercapacitor application

Cited by 13 publications

References 45 publications

Porous Cobalt Metal–Organic Frameworks as Active Elements in Battery–Supercapacitor Hybrid Devices

Porous Cobalt Metal–Organic Frameworks as Active Elements in Battery–Supercapacitor Hybrid Devices

Fe-Based Coordination Polymers as Battery-Type Electrodes in Semi-Solid-State Battery–Supercapacitor Hybrid Devices

High-Performance Symmetrical Supercapacitor with a Combination of a ZIF-67/rGO Composite Electrode and a Redox Additive Electrolyte

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