Recent advancements of polyaniline-based nanocomposites for supercapacitors

Liu, Panbo; Yan, Jing; Guang, Zhaoxu; Huang, Ying; Li, Xifei; Huang, Wenhuan

doi:10.1016/j.jpowsour.2019.03.094

Cited by 315 publications

(131 citation statements)

References 180 publications

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“…Along with the improvement of economy and growing requirements of people, the developments of highperformance nonrenewable energy resources are more and more urgent and eager, such as alkaline-ion batteries, fuel cell, and supercapacitors. [1][2][3][4] Among them, lithium-ion batteries (LIBs) still occupy the dominant energy conversion and storage positions all over the world on account of the wide voltage windows, ultrahigh power density, and long cyclic life, which are widely applied for portable electronic units and mobile communication equipments. 5,6 Nevertheless, the traditional LIBs cannot satisfy people's growing requirements on account of the fast capacity decay after repeated charging and discharging.…”

Section: Introductionmentioning

confidence: 99%

A novel flower‐like metal‐based oxides with cross‐linked networks for rapid lithium‐ion storage

et al. 2020

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Summary A cross‐linked MnO2 coated ZnFe2O4 hollow nanosphere composite is synthesized and controlled via a facial and handy route. The connected MnO2 nanoplates form a cross‐linked network, which is conducive to the rapid transfer of Li ions. The composite with unique architecture can not only release the strain and stress caused by the insertion and desertion of lithium ions but also greatly improve the electrical conductivity and lithium ion diffusivity. Consequently, when used as a lithium‐ion battery anode material, the electrode shows an excellent initial reversible capacity of 933.5 mAh/g with an initial coulombic efficiency of 62.5%. After 100 cycles, the reversible capacity stabilized at 605.6 mAh/g with a high capacity retention of 91% from the 20th cycle to the 100th cycle. At a high current density of 3 A/g, an excellent capacity of 390.6 mAh/g can be retained. In this case, the electrode shows broad application prospects for novel power storage systems.

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Section: Introductionmentioning

confidence: 99%

A novel flower‐like metal‐based oxides with cross‐linked networks for rapid lithium‐ion storage

et al. 2020

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“…Nowadays, various electrode materials have been developed to satisfy the increasing demand of the energy storage systems, such as carbon materials, conductive polymers, transition metal oxides/hydroxides, sulfides and nitrides. [6][7][8][9][10][11][12][13] Among them, activated carbon, graphene, carbon nanotube and porous carbon are widely used in EDLC [14] and conductive polymers, MnO 2 and RuO 2 , etc. are considered to be typical pseudocapacitor materials.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Organic Framework Derived Ni₂P/C Hollow Microspheres as Battery‐Type Electrodes for Battery‐Supercapacitor Hybrids

Liu

Wang

et al. 2019

ChemElectroChem

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Nickel phosphide (Ni 2 P/C) hollow microspheres were synthesized via a facile two-step route based on metal-organic framework (MOF) precursors. Unlike direct phosphating the MOF by calcination that would damage the MOF structure and that would form multiple phases, solvothermal method was able to convert the Ni-based MOF to one-pure-phase nickel phosphide with the MOF skeleton maintained, as suggested by XRD, XPS, and SEM. When using as the battery-supercapacitor hybrids electrode material, the optimized Ni 2 P/C exhibited the specific capacity 670.4 C/g (1676 F/g) at 1 A/g in a threeelectrode system, and a maximum energy density 42.74 Wh/kg at 764.23 W/kg in an asymmetric supercapacitor. It also delivered an energy density of 35.39 Wh/kg at 7000 W/kg with the rate capability retention of 92 % after 5000 cycles. The high specific surface area and the increased amount of electrochemically active sites endowed by the unique morphology, together with the low charge transfer resistance all contribute to the excellent electrochemical performance of the Ni 2 P/C material. These also indicate that solvothermal method is feasible in converting MOF to metal phosphide for the application in energy storage and conversion systems.[a] Prof.

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“…[1][2][3] The oxygen reduction reaction (ORR) is the most critical reaction toward fuel cells and other air batteries, which plays a vital role for the practical application for these energy conversion devices. [1][2][3] The oxygen reduction reaction (ORR) is the most critical reaction toward fuel cells and other air batteries, which plays a vital role for the practical application for these energy conversion devices.…”

Section: Introductionmentioning

confidence: 99%

Template‐free synthesis of novel hollow carbon nanospheres with dual active sites as catalyst for fuel cell cathode to improve oxygen reduction reaction performances

et al. 2019

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Summary A new template‐free controlled method is reported herein to prepare the novel hollow carbon nanospheres with dual active sites of FeN4 and FeC3 by in situ growth reaction on graphene nanosheets, labeled as HCN‐FNFCG. As‐prepared HCN‐FNFCG nanomaterials possess hierarchically porous FeN4/FeC3 shells with structures of microporous, mesoporous, and macroporous properties. Moreover, the hierarchically porous HCN‐FNFCG nanomaterials with dual active sites of FeN4 and FeC3 have not been reported before. The HCN‐FNFCG nanomaterials, as oxygen reduction reaction (ORR) catalysts, are first studied systematically toward cathodic ORR of fuel cell. The measurements have illustrated that HCN‐FNFCG‐650 has the best ORR performances among these HCN‐FNFCG nanomaterials studied. The onset potential of HCN‐FNFCG‐650 has reached 1.095 V in alkaline electrolyte, and its maximum current density is 6.48 mA cm−2. Additionally, the HCN‐FNFCG‐650 has also displayed small electrochemical impedance, its Tafel‐slope value is 44.25 mV dec−1, much lower than that of the 20% Pt/C (69.57 mV dec−1). And its value of current density is still maintained 92.83% of the initial value after 9000‐second continuous tests. High tolerance against methanol crossover is also exhibited for HCN‐FNFCG‐650. This novel method of template‐free synthesis can provide a promising strategy for preparing hollow nanospheres with hierarchically porous shells. And it can be used to design ORR electrocatalysts, electrode materials, or other applications.

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Recent advancements of polyaniline-based nanocomposites for supercapacitors

Cited by 315 publications

References 180 publications

A novel flower‐like metal‐based oxides with cross‐linked networks for rapid lithium‐ion storage

A novel flower‐like metal‐based oxides with cross‐linked networks for rapid lithium‐ion storage

Metal‐Organic Framework Derived Ni₂P/C Hollow Microspheres as Battery‐Type Electrodes for Battery‐Supercapacitor Hybrids

Template‐free synthesis of novel hollow carbon nanospheres with dual active sites as catalyst for fuel cell cathode to improve oxygen reduction reaction performances

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Recent advancements of polyaniline-based nanocomposites for supercapacitors

Cited by 315 publications

References 180 publications

A novel flower‐like metal‐based oxides with cross‐linked networks for rapid lithium‐ion storage

A novel flower‐like metal‐based oxides with cross‐linked networks for rapid lithium‐ion storage

Metal‐Organic Framework Derived Ni2P/C Hollow Microspheres as Battery‐Type Electrodes for Battery‐Supercapacitor Hybrids

Template‐free synthesis of novel hollow carbon nanospheres with dual active sites as catalyst for fuel cell cathode to improve oxygen reduction reaction performances

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Metal‐Organic Framework Derived Ni₂P/C Hollow Microspheres as Battery‐Type Electrodes for Battery‐Supercapacitor Hybrids