Ordered mesoporous carbon/molybdenum carbide nanocomposite with high electrochemical performance asymmetric supercapacitor

Abdolahi, Bahare; Gholivand, Mohammad Bagher; Shamsipur, Mojtaba; Amiri, Masoud

doi:10.1016/j.jallcom.2022.164185

Cited by 16 publications

(2 citation statements)

References 37 publications

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“…Such a performance is excellent compared with others reported in the literature (Table S8). − The excellent capacitance retention could root in the charging and discharging activation of the heteroatom-doped carbon nanomaterial. It was worth noting that the specific capacitance improved along with the increasing cycles.…”

Section: Resultsmentioning

confidence: 99%

Carbon Nanomaterials Made from Supramolecular Hybridization of Cucurbit[6]uril with Phosphomolybdic Acid for Supercapacitors

Jin

Zhao

et al. 2023

ACS Appl. Nano Mater.

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Carbonaceous nanomaterials are attractive as supercapacitor electrode materials due to their high electronic conductivity, large specific surface area, and low cost. This study prepared a supramolecular carbon source (Q[6]-PMA) via a facile one-pot supramolecular synthesis with cucurbit[6]uril (Q[6]) and phosphomolybdic acid (PMA). Further carbonization of Q[6]-PMA at various temperatures produced N, O, P, and Mo-enriched carbon nanomaterials, Q[6]-PMAC-Xs, whose N and Mo contents were 14.08−24.67 and 24.03−51.91%, respectively. The product's mesoporous surface area was 243.2−376.2 m 2 g −1 . A symmetric supercapacitor device with Q[6]-PMAC-600 as electrodes achieved a stable cycle performance with 106.9% capacitance retention and 96.88% coulombic efficiency after 10,000 cycles. The supercapacitor device exhibited a specific capacitance (C sp ) of 132.34 F g −1 , the highest energy density of 36.03 W h kg −1 at a power density of 560 W kg −1 , and a current density of 0.2 A g −1 in a 1.0 M KCl electrolyte. In this case, the organic/inorganic hybridization with supramolecular interactions successfully explored a pathway for carbon nanomaterials.

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Section: Resultsmentioning

confidence: 99%

Carbon Nanomaterials Made from Supramolecular Hybridization of Cucurbit[6]uril with Phosphomolybdic Acid for Supercapacitors

Jin

Zhao

et al. 2023

ACS Appl. Nano Mater.

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“…Poor electrical conductivity is one of the reasons for the low activity of molybdenum carbide materials [62,63]. Nowadays, many researchers find that the conductivity of the molybdenum carbide material and the hydrogen evolution capacity can be improved by compounding molybdenum carbide with carbon materials or doped carbon materials.…”

Section: The Activity Enhancement Of Molybdenum Carbide By Compositin...mentioning

confidence: 99%

Recent Progress on Molybdenum Carbide-Based Catalysts for Hydrogen Evolution: A Review

Zhou,

Jia,

Wang

et al. 2023

Sustainability

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Hydrogen is an ideal alternative energy for fossil fuels to solve aggravating environmental and energy problems. Electrocatalytic hydrogen evolution reaction (HER) driven by renewable electricity (sunlight, wind, tide, etc.) is considered to be one of the most promising approaches for hydrogen production. However, its large-scale applications are greatly limited by the use of noble platinum (Pt) group electrocatalysts. As an earth-abundant/non-noble HER catalyst, molybdenum carbide (MoxC: MoC or Mo2C) has attracted extensive attention in the field of sustainable hydrogen production due to its excellent Pt-like catalytic activity, low cost, high chemical stability, and natural abundance. In this review, the progress on the strategies for optimizing the catalytic activity of MoxC is summarized, including optimization of synthesis methods, composites with carbon material, non-precious metal doping, transition metal doping, construction of the heterogeneous structure, etc. Among them, the importance of sulphur-doping, Ni-doping, and heterophase structure on molybdenum carbide-based catalysts for enhancement of HER activity has been highlighted. In addition, molybdenum carbide-based bi-functional catalysts are presented for the application in full water splitting. Finally, several effective strategies for molybdenum carbide-based catalyst design are concluded, and challenges remained in electrocatalytic water splitting are raised. Future development trends and perspectives for this promising material are also discussed.

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Making a wearable supercapacitor based on highly porous 3D nitrogen-doped graphene

Amiri¹,

Golmohammadi

Mohammadi³

2022

J Mater Sci: Mater Electron

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Ordered mesoporous carbon/molybdenum carbide nanocomposite with high electrochemical performance asymmetric supercapacitor

Cited by 16 publications

References 37 publications

Carbon Nanomaterials Made from Supramolecular Hybridization of Cucurbit[6]uril with Phosphomolybdic Acid for Supercapacitors

Carbon Nanomaterials Made from Supramolecular Hybridization of Cucurbit[6]uril with Phosphomolybdic Acid for Supercapacitors

Recent Progress on Molybdenum Carbide-Based Catalysts for Hydrogen Evolution: A Review

Making a wearable supercapacitor based on highly porous 3D nitrogen-doped graphene

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