Facile-Synthesized Ni-Metal–Organic Framework/Nano Carbon Electrode Material for High-Performance Supercapacitors

Liang, Ruibin; Du, Yongquan; Lin, Jizhen; Chen, Jianwen; Xiao, Peng

doi:10.1021/acs.energyfuels.2c01058

Cited by 15 publications

(14 citation statements)

References 28 publications

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“…It can be seen that all three catalysts exhibit similar shapes of CV curves. In the positive scan direction of the potential, the desorption peaks of H occur in the potential range of −0.2 and 0.05 V. In the negative scan direction, the adsorption peaks of H appear from 0.05 V to −0.2 V. With reference to the literature, − the electrochemical specific surface area (ECSA) of the catalyst can be calculated from the area of the adsorption and desorption peaks of H. The ECSA value for the 1:1-PtCo/NCS-II catalyst is 265.7 m 2 g pt –1 , which is higher than the 1:1-PtCo/NCS-I catalyst (156.2 m 2 g pt –1 ) and 1:1-PtCo/NCS-III catalyst (253.2 m 2 g pt –1 ), so the 1:1-PtCo/NCS-II has the potential for higher electrocatalytic activity. To further investigate the electrocatalytic activity of three catalysts for the methanol oxidation reaction, CV tests are performed in a mixed solution of 0.5 M H 2 SO 4 + 1.0 M CH 3 OH.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Electrochemical Performances of a Versatile Nitrogen-Doped Carbon Skeleton Material Derived from a Humate-CoFe-ZIF/Melamine Precursor

Yuan

Cong

et al. 2022

ACS Appl. Electron. Mater.

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Humic acid (HA), melamine, and ZIFs are superior precursors for preparing carbon materials. Especially, metal ions in ZIFs are excellent nanocatalysts for synthesizing CNTs or graphene, while melamine and ZIFs are good dopants for fabricating nitrogen-doped carbon materials. Here, nitrogendoped carbon skeletal materials (NCS) assembled by a large number of bamboo-like CNTs and a small number of graphene layers were elaborately synthesized by a two-step pyrolysis process using a humate-CoFe-ZIF (HA-CoFe-ZIF) composite material as the template and melamine as the carbon and nitrogen source. NCS-II exhibits desirable supercapacitive characteristics and superior support performance due to a harmoniously assembled graphitic structure, favorite nitrogen incorporation mainly including pyridinic N and pyrrolic N at a high dosage of 5.24 wt %, abundant mesoporous structure, and large specific surface. As a supercapacitor electrode material, NCS-II demonstrates a high electrochemical capacitance (324 F g −1 at 1 A g −1 ), wide operating current density range (1−50 A g −1 ), and rate capability (64% from 5 A g −1 to 50 A g −1 ). And the prepared NCS-II//AC asymmetric supercapacitor also displays a large specific capacitance (129 F g −1 at 1 A g −1 ), good cycling stability (96% at 5 A g −1 for 10 000 cycles), and high energy density (25.6 Wh kg −1 at 600 W kg −1 ). As a catalyst support, the NCS-II provides plentiful active sites and a large specific surface area for the highly dispersed loading of PtCo nanoparticles. The prepared 1:1-PtCo/NCS-II catalyst exhibits high catalytic activity, good cycling stability, and strong CO tolerance ability for methanol oxidation reaction (MOR). Its ECSA value, CV peak current density, and peak current retention after 500 CV turns are high, up to 265.7 m 2 g pt −1 , 850 mA mg Pt −1 , and 79%, respectively.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Electrochemical Performances of a Versatile Nitrogen-Doped Carbon Skeleton Material Derived from a Humate-CoFe-ZIF/Melamine Precursor

Yuan

Cong

et al. 2022

ACS Appl. Electron. Mater.

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“…Also, this material exhibited excellent capacitance retention. 2 Recent advancements in the search for an effective material for its application in supercapacitors led us to focus on nickel-based MOFs with a high surface area and excellent capacitance retention. To date, Ni-MIL-77 nanobelts have been synthesized and used in the field of electrolysis for the determination of glucose in human serum, 28 determination of urea in human body fluids, 29 as a bifunctional oxygen catalyst, 30 for electrocatalytic urea evolution, 10 for high sensitive detection of nitrite, 31 etc.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The peak centered at 530.8 eV can be attributed to the metal−oxygen (Ni−O) bond, and the peak at 531.5 is due to the O element in the ligand, which is in accordance with literature reports. 2 Electrochemical Performance. The electrochemical activity of 1D-Ni-MIL-77 was studied using cyclic voltammetry (CV) and galvanostatic charge−discharge curve (GCD) experiments.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The problem of global climate change and the extensive usage of fossil fuels is progressively growing worse . It has become a prominent topic to discuss how to deal with severe environmental pollution and energy shortages using clean renewable energy sources, including solar, wind, tidal, and hydrogen . An important obstacle to the effective consumption of various renewable energy sources is the intermittent nature of the energy supply .…”

Section: Introductionmentioning

confidence: 99%

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One-Dimensional Ni-MIL-77 Metal–Organic Framework as an Efficient Electrode Nanomaterial for Asymmetric Supercapacitors

Panigrahy

Panda

Shekhawat

et al. 2023

ACS Appl. Nano Mater.

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The design and synthesis of one-dimensional (1D) metal–organic frameworks (MOFs) with a high surface area are crucial for their potential usage in supercapacitor applications. 1D-Ni-MIL-77 MOF, synthesized by a one-step solvothermal method, is used here to investigate its activity in supercapacitor applications. High surface-to-volume ratios and short ion diffusion path lengths in 1D-structured nanomaterials result in high charge/discharge rates. 1D-Ni-MIL-77 MOF nanobelts show a high surface area of 93.48 m2 g–1 that gives ample active electrochemical sites. 1D-Ni-MIL-77 shows a specific capacitance (C) value of 1376 F g–1 under the current of 1 A g–1. Additionally, an asymmetric supercapacitor (ASC) was assembled by employing activated carbon as the negative electrode and a 1D-Ni-MIL-77 nanobelt as the positive electrode. With the assembled ASC, at a power density of 750 W kg–1, an energy density of 25 W h kg–1 was attained with a voltage ranging from 0 to 1.5 V. The cyclic durability of the ASC was examined, and it exhibited excellent retention of 95% of its initial capacitance after 5000 cycles.

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“…Since the discovery of carbon nanotubes (CNTs) by lijima in 1991, they have been used as promising electrode materials due to their high electrical conductivity, no pollution, and electrical energy storage ability . Since then, carbon nanotubes have been frequently used in 3D scaffolds as dispersants, enhancing the electrolyte and electrode materials and providing a flexible substrate to buffer volume changes during charge–discharge cycles. , However, pristine CNTs have an inert surface and strong π–π interactions, hindering the bond formation between metal precursors and CNTs. Therefore, some pretreatment methods are usually required for further synthesis as supercapacitor electrodes.…”

Section: Introductionmentioning

confidence: 99%

Controllable Preparation of Cu NPs/CNTs@PANI Composites as Electrode Materials for Electrochemical Double-Layer Capacitors

et al. 2022

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Copper nanoparticles are uniformly supported on acidified carbon nanotubes (CNTs/Cu NPs) by a mild liquid-phase reduction method without surfactants or bridging molecules. The surface of copper nanoparticles is smooth without impurities. Then, polystyrene (PS) microspheres are prepared by emulsion polymerization and composited with CNTs/Cu NPs (CNTs/Cu NPs/PS). Nanocopper/carbon nanotubes as the core and polyaniline as the shell were prepared via situ polymerization as a core–shell structure (PANI@CNTs/Cu NPs/PS). At a high temperature, the PS cracks and eliminates materials, forming porous structures, and the polyaniline is carbonized, realizing nitrogen doping of the material (NCMP). The results indicated that the acidified carbon nanotubes played a crucial role in the synthesis procedure, achieving consistent growth of copper on carbon nanotubes. The size of evenly dispersed copper nanoparticles is about 5–15 nm. When NCMP is applied as an electrode material, it demonstrates excellent electrochemical performance as a high-performance supercapacitor.

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Facile-Synthesized Ni-Metal–Organic Framework/Nano Carbon Electrode Material for High-Performance Supercapacitors

Cited by 15 publications

References 28 publications

Synthesis and Electrochemical Performances of a Versatile Nitrogen-Doped Carbon Skeleton Material Derived from a Humate-CoFe-ZIF/Melamine Precursor

Synthesis and Electrochemical Performances of a Versatile Nitrogen-Doped Carbon Skeleton Material Derived from a Humate-CoFe-ZIF/Melamine Precursor

One-Dimensional Ni-MIL-77 Metal–Organic Framework as an Efficient Electrode Nanomaterial for Asymmetric Supercapacitors

Controllable Preparation of Cu NPs/CNTs@PANI Composites as Electrode Materials for Electrochemical Double-Layer Capacitors

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