Plasma boosted N, P, O co-doped carbon microspheres for high performance Zn ion hybrid supercapacitors

Wang, Kangyao; Chen, Yao; Liu, Yuebin; Zhang, Heng; Shen, Yuxi; Pu, Ziyan; Qiu, Hailong; Li, Yueming

doi:10.1016/j.jallcom.2021.163588

Cited by 71 publications

(15 citation statements)

References 70 publications

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“…73 In addition to the remarkable C s , the 75-EG/ RGO-based ZHS also exhibited satisfactory cycle life. As shown in Figure 5e, the ZHS maintains 91.7% capacitance after (based on the mass of the cathode), which is comparable to some commercialized ESDs and many reported ESDs, including chemically activated graphene, 56 mesoporous carbons, 60 N, P, O-co-doped carbon microspheres, 63 N-Ti 3 C 2 , 61 and activated carbon-based ZHS. 74 To deeply investigate the charge storage mechanism and surface chemical states of the 75%-EG/RGO cathode, five representative potentials were chosen to perform ex situ XPS and ex situ XRD tests.…”

Section: ■ Results and Discussionsupporting

confidence: 70%

“…The Ragone plots of various ESDs are depicted in Figure f. At the power density of 70.9 W kg –1 , 75%-EG/RGO-based ZHS can deliver an energy density of 103 Wh kg –1 (based on the mass of the cathode), which is comparable to some commercialized ESDs and many reported ESDs, including chemically activated graphene, mesoporous carbons, N, P, O-co-doped carbon microspheres, N-Ti 3 C 2 , and activated carbon-based ZHS …”

Section: Results and Discussionmentioning

confidence: 77%

“…At 0.1 A g –1 , a high C s of 327.39 F g –1 (145.5 mAh g –1 ) was obtained, which is the total contribution of hierarchical porous structure, providing numerous active sites for EDLC and pseudocapacitance. As shown in Figure d, the high C s of 75%-EG/RGO is not only higher than most pure carbon electrodes ,,− but also comparable to or even better than many battery-type electrodes, such as Na 3 V 2 (PO 4 ) 2 F 3 (62 mAh g –1 ), 3,4,9,10-perylenetetracarboxylic dianhydride (π-PMC, 122.9 mAh g –1 ), three-dimensional (3D) graphene@polyaniline (154 mAh g –1 ), Co-Mn Prussian blue analogue (128.6 mAh g –1 ), 1,4-bis(diphenylamino)benzene (BDB, 125 mAh g –1 ), ZnMn 2 O 4 (134.7 mAh g –1 ), and Mn(BTC) metal–organic framework (112 mAh g –1 ) . In addition to the remarkable C s , the 75-EG/RGO-based ZHS also exhibited satisfactory cycle life.…”

Section: Results and Discussionmentioning

confidence: 90%

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Graphene Film with a Controllable Microstructure for Efficient Electrochemical Energy Storage

Jiang

Zhang

Sheng

et al. 2023

ACS Appl. Mater. Interfaces

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The agglomeration of graphene sheets and undesired pore size distribution usually lead to unsatisfactory electrochemical properties of reduced graphene oxide (RGO) film electrodes. Herein, crumpled exfoliated graphene (EG) sheets are adopted as the microstructure-regulating agent to tune the morphology and micro-/mesopore amounts with the aim of increasing active surface sites and ion transportation paths in electrodes. With the optimum ratio between EG and GO, the resulting 75%-EG/RGO shows significantly improved specific gravimetric capacitance (C s ) and rate capability when compared with pure RGO electrodes in a symmetrical supercapacitor system. Moreover, when coupling the 75%-EG/RGO cathode with a Zn anode to form a Zn ion hybrid supercapacitor (ZHS), the 75%-EG/RGO exhibits a much higher C s of 327.39 F g −1 at 0.1 A g −1 and can maintain 91.7% capacitance after 8000 cycles. Systematic ex situ X-ray diffraction (XRD) and X-ray photoelectron spectra (XPS) measurements reveal that the charge storage mechanism is based on both reversible physical adsorption and dual ion uptake. Furthermore, the quasi-solid-state flexible ZHS also presents high capacitive performance and can maintain ∼100% capacitance under various bending states, demonstrating potential application in wearable electronics. This strategy opens up a new path for constructing high-performance graphene film electrodes.

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Section: ■ Results and Discussionsupporting

confidence: 70%

Section: Results and Discussionmentioning

confidence: 77%

Section: Results and Discussionmentioning

confidence: 90%

See 1 more Smart Citation

Graphene Film with a Controllable Microstructure for Efficient Electrochemical Energy Storage

Jiang

Zhang

Sheng

et al. 2023

ACS Appl. Mater. Interfaces

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“…Boron doping enhanced the chemisorption of SO 4 2− on the carbon cathode surface and the reaction between the oxygen dopant and Zn ions increased the capacity. Additionally, Wang et al [ 106 ] prepared plasma‐treated carbon microspheres (RNP‐1‐2‐Air) with N, P, O co‐doping. RNP‐1‐2‐Air as cathode material for ZHSCs exhibited an energy density of 54.4 Wh kg −1 at a power density of 4000 W kg −1 with capacitance retention of ~100% after 10,000 cycles.…”

Section: Design Of Cathode Materialsmentioning

confidence: 99%

Zinc‐ion hybrid supercapacitors: Design strategies, challenges, and perspectives

Chen

Zhang

Gao

et al. 2022

Carbon Neutralization

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Zinc‐ion hybrid supercapacitors (ZHSCs) may be the most promising energy storage device alternatives for portable and large‐scale electronic devices in the future, as they combine the benefits of both supercapacitors and zinc‐ion batteries. Even though many surprise outcomes have been accomplished with ZHSCs, the creation of suitable cathode materials and electrolytes, as well as the enhancement of zinc anodes, continue to be the most difficult obstacles in the development of high‐performance ZHSCs. The low capacitance of the cathode material, poor stability, and low utilization rate of the zinc anode seriously affect the electrochemical performance and application of ZHSCs. Furthermore, parasitic processes in aqueous electrolytes, such as the hydrogen and oxygen evolution reactions might result in low‐voltage windows and unsatisfied cycling performance of the ZHSCs. This review provides a concise summary of the most recent developments and energy storage mechanisms in ZHSCs. Meanwhile, the cathode material design strategy (structural engineering, hybrid‐composite design, heteroatom doping, and so on), the zinc anode design strategy (zinc foil improvement, zinc‐free metal composites, and so on), and the structure–activity relationship of the electrochemical performance of ZHSCs are discussed. Additionally, a summary of the impact of modifications in electrolyte composition on the electrochemical performance of ZHSCs is provided. Finally, this review also discusses the future development direction of ZHSCs. It is anticipated that this evaluation will serve as a helpful reference for the creation of high‐performance ZHSCs, which will hasten the development of these devices.

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“…Several treatments on the carbon surface can be explored to increase the electrochemical performances of the carbonaceous matrix [19][20][21][22][23] . The introduction of heteroatoms on the carbon surface, such as nitrogen, oxygen, sulfur, and phosphorus, generally affects properties like wettability and conductivity 24 , changing the total capacitance.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of Iron Oxide Decorated Activated Carbon Cloth as a Binder-Free Flexible Electrode

et al. 2022

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The oxidation and deposition of transition metal oxides on porous carbon precursor materials strongly influence the final performance of supercapacitor electrodes. Thus, the influence of oxidation time combined with simple iron oxide deposition was evaluated on a flexible carbon fiber cloth electrode oxidized at three different times and exposed to spontaneous iron oxide deposition. The 140 minutes oxidation time increased by two times the iron quantity deposited on the activated carbon fiber cloth (ACC) and also increased the crystallinity of the carbon matrix. The iron oxide deposition improved the contribution of anions to store energy, enhancing the pseudocapacitive effect in the samples. The optimal oxidation time of the ACC140_Fe sample with the greater iron oxide deposition achieves 116.8 F g -1 . The binder-free flexible electrode presents a successful design through pre-oxidation and spontaneous iron oxide deposition on the carbon matrix without expensive and environmentally unfriendly chemical treatments.

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Plasma boosted N, P, O co-doped carbon microspheres for high performance Zn ion hybrid supercapacitors

Cited by 71 publications

References 70 publications

Graphene Film with a Controllable Microstructure for Efficient Electrochemical Energy Storage

Graphene Film with a Controllable Microstructure for Efficient Electrochemical Energy Storage

Zinc‐ion hybrid supercapacitors: Design strategies, challenges, and perspectives

Electrochemical Properties of Iron Oxide Decorated Activated Carbon Cloth as a Binder-Free Flexible Electrode

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