Supercapacitor Electrodes from the in Situ Reaction between Two-Dimensional Sheets of Black Phosphorus and Graphene Oxide

Cao, Jianyun; He, Pei; Brent, Jack R.; Yılmaz, Halil; Lewis, David J.; Kinloch, Ian A.; Derby, Brian

doi:10.1021/acsami.7b18853

Cited by 47 publications

(23 citation statements)

References 44 publications

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“…Most of the energy-storage devices are based on batteries, which still have low power density and safety issues [ 6 , 7 ]. Supercapacitors have emerged as a promising alternative for Li-ion batteries (LIBs) as they exhibit high power densities, excellent and fast cycling stability, and longevity [ 1 , 8 , 9 , 10 ]. Hybrid supercapacitors based on pseudocapacitance (usually based on transition metal oxides) have high energy density than electric double-layer capacitors (EDLCs).…”

Section: Introductionmentioning

confidence: 99%

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

et al. 2020

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Manganese oxide (MnO2) is a promising material for supercapacitor applications, with a theoretical ultra-high energy density of 308 Wh/kg. However, such ultra-high energy density has not been achieved experimentally in MnO2-based supercapacitors because of several practical issues, such as low electrical conductivity of MnO2, incomplete utilization of MnO2, and dissolution of MnO2. The present study investigates the potential of MnO2/reduced graphene oxide (rGO) hybrid nanoscroll (GMS) structures as electrode material for overcoming the difficulties and for developing ultra-high-energy storage systems. A hybrid supercapacitor, comprising MnO2/rGO nanoscrolls as anode material and activated carbon (AC) as a cathode, is fabricated. The GMS/AC hybrid supercapacitor exhibited enhanced energy density, superior rate performance, and promising Li storage capability that bridged the energy–density gap between conventional Li-ion batteries (LIBs) and supercapacitors. The fabricated GMS/AC hybrid supercapacitor demonstrates an ultra-high lithium discharge capacity of 2040 mAh/g. The GMS/AC cell delivered a maximum energy density of 105.3 Wh/kg and a corresponding power density of 308.1 W/kg. It also delivered an energy density of 42.77 Wh/kg at a power density as high as 30,800 W/kg. Our GMS/AC cell’s energy density values are very high compared with those of other reported values of graphene-based hybrid structures. The GMS structures offer significant potential as an electrode material for energy-storage systems and can also enhance the performance of the other electrode materials for LIBs and hybrid supercapacitors.

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Section: Introductionmentioning

confidence: 99%

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

et al. 2020

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“…A similar strategy was adopted to prepare hybrid electrodes consisting of a few-layer exfoliated black phosphorous (H x PO y ) and rGO flakes. [65] The H x PO y /rGO hybrid supercapacitor exhibited a specific capacitance of 104.4 F/g at a current density of 0.25 A g À 1 in 1 M H 3 PO 4 aqueous electrolyte. The relaxation time for the H x PO y /rGO hybrid supercapacitor was 0.31 s, whereas it was 1.8 s for the pristine rGO supercapacitor, which indicates that the former possessed superior rate capability when compared to the latter.…”

Section: D Phosphorene-based Symmetric Hybrid Supercapacitorsmentioning

confidence: 96%

Symmetric, Asymmetric, and Battery‐Type Supercapacitors Using Two‐Dimensional Nanomaterials and Composites

Cherusseri

Pandey

Thomas

2020

Batteries & Supercaps

100

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Recent advances in the field of energy storage devices such as supercapacitors and batteries have helped mankind to cater to their power demands to a greater extent. 2D materials‐based electrodes have attracted great interest in the recent past due to their unique properties such as large surface area, good electronic conductivity, excellent electrochemical properties, and good chemical, electrochemical, and thermal stabilities, which are essential requirements for a supercapacitor electrode to obtain high‐performance. In this review, we discuss the recent advancements in the field of 2D materials such as MXenes, transition metal dichalcogenides, phosphorene, and their composites as electrodes in high‐performance supercapacitors. The electrochemical performances of these 2D materials‐based electrodes in symmetric, asymmetric, and battery‐type hybrid supercapacitors are reviewed. Emphasis is given to the recent developments on the battery‐type hybrid supercapacitors fabricated using these 2D materials‐based electrodes. The future perspectives of these materials in the next‐generation energy storage are also briefly discussed.

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“…2020, 7,1902359 Based on their high specific surface area and good electrical conductivity, BPNSs have been already employed as electrode materials in energy storage devices. [60,100,115,118,131,132,[213][214][215][216][217][218] The high theoretical capacity (2596 mAh g −1 ) of BPNSs makes it as a promising electrode material in lithium-ion and sodiumion batteries (LIBs and SIBs). [61] BPNSs based anode materials for LIBs exhibit improved first charge and discharge capacities compared to existing graphitic anode materials.…”

Section: Applications Of Functionalized Bpnssmentioning

confidence: 99%

“…Based on their high specific surface area and good electrical conductivity, BPNSs have been already employed as electrode materials in energy storage devices . The high theoretical capacity (2596 mAh g −1 ) of BPNSs makes it as a promising electrode material in lithium‐ion and sodium‐ion batteries (LIBs and SIBs) .…”

Section: Applications Of Functionalized Bpnssmentioning

confidence: 99%

Recent Advances in Chemical Functionalization of 2D Black Phosphorous Nanosheets

Thurakkal

Zhang

2019

Advanced Science

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BPNSs can be mechanically peeled off from bulk BP crystals using scotch-tape. [37] Although this method can produce high quality 2D BPNSs in a simple and cost-effective manner, the obtained BPNSs show inhomogeneous size, poor repeatability, and extremely low production yield. To obtain BPNSs in a high yield, several alternative methods were employed including metal assisted mechanical exfoliation [102] and exfoliation using polydimethylsiloxane (PDMS) stamp, [70] viscoelastic stamp using blue Nitto tape, [103] and poly(methyl methacrylate)/poly(vinyl alcohol) stack. [104] In another approach, Zhu and co-workers reported a large-scale preparation of relatively stable BPNSs through high energy solid-state mechanical ball milling of bulk BP in the presence of an additive LiOH. [105] The high-energy mechanical milling facilitates the generation of free radicals at the edges by breaking the PP bonds and thus leads to the formation of stable hydroxyl functionalized BPNSs. In addition, this method has been widely utilizing as an efficient method to synthesize functionalized BPNSs for various applications. [106,107] Adv. Sci. 2020, 7, 1902359 3.20-3.73 Å a 1L 2L 3L Bulk Armchair b

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Supercapacitor Electrodes from the in Situ Reaction between Two-Dimensional Sheets of Black Phosphorus and Graphene Oxide

Cited by 47 publications

References 44 publications

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

Symmetric, Asymmetric, and Battery‐Type Supercapacitors Using Two‐Dimensional Nanomaterials and Composites

Recent Advances in Chemical Functionalization of 2D Black Phosphorous Nanosheets

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