Anion and cation substitution in transition-metal oxides nanosheets for high-performance hybrid supercapacitors

Li, Jinghua; Liu, Zaichun; Zhang, Qiaobao; Cheng, Yong; Zhao, Bote; Dai, Shuge; Wu, Hong‐Hui; Zhang, Kaili; Ding, Dong; Wu, Yuping; Liu, Meilin; Wang, Mingsheng

doi:10.1016/j.nanoen.2018.12.011

Cited by 300 publications

(147 citation statements)

References 79 publications

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“…Transition metal oxides (TMOs) have attracted widespread attention as promising electrodes for SCs . However, the TMOs suffer from poor kinetics during charge storage.…”

Section: Recently Emerging Approaches For Surface Engineeringmentioning

confidence: 99%

“…Transition metal oxides (TMOs) have attracted widespread attention as promising electrodes for SCs. [42][43][44][45][46] However, the TMOs suffer from poor kinetics during charge storage. To intrinsically address the poor kinetics of TMOs, oxygen defects introduction has been proved to be efficient in boosting the capacitive performance of various TMOs such as MnO 2 , [36] Fe 2 O 3 , [37] Ti 2 Nb 10 O 29-x , [47] and Co 3 O 4 .…”

Section: Surface Functionalizationmentioning

confidence: 99%

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Surface Engineering for Advanced Aqueous Supercapacitors: A Review

Yang

et al. 2019

ChemElectroChem

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Considerable attention has been focused on aqueous supercapacitors (SCs), owing to their large power density and excellent cycling stability, which makes them more suitable for high power applications. However, the lower energy densities (E) of aqueous SCs as compared to batteries have impeded their range of commercial applications. To overcome this challenge, intensive studies have been devoted to the topic, in which surface engineering becomes critical to the high‐performance electrode design due to the efficient manipulation of a material surface to boost energy storage while maintaining the integrity of interior of the material. The purpose of this Minireview article is to highlight recent significant breakthroughs realized through surface engineering approaches such as surface functionalization, heterostructure design, and surface charge modulation. Current challenges, emerging trends, and opportunities for advanced SCs are discussed accordingly.

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“…Transition metal oxides (TMOs) have attracted widespread attention as promising electrodes for SCs . However, the TMOs suffer from poor kinetics during charge storage.…”

Section: Recently Emerging Approaches For Surface Engineeringmentioning

confidence: 99%

Section: Surface Functionalizationmentioning

confidence: 99%

Surface Engineering for Advanced Aqueous Supercapacitors: A Review

Yang

et al. 2019

ChemElectroChem

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“…Supercapacitors as efficient and green energy storage devices have received widespread interest owing to their high specific capacitance, high energy densities, fast charge and discharge ability . The majority of materials for supercapacitors include carbon‐based materials, conductive polymers, metal oxides . Conductive polymers and metal oxides are common electrode materials owing to easy preparation and processing, tunable conductivity and reversible redox characteristics, but the samples exhibit low cycle stabilities due to the structural defects appeared during the charge/discharge process .…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] The majority of materials for supercapacitors include carbon-based materials, [4,5] conductive polymers, [6,7] metal oxides. [8,9] Conductive polymers and metal oxides are common electrode materials owing to easy preparation and processing, tunable conductivity and reversible redox characteristics, but the samples exhibit low cycle stabilities due to the structural defects appeared during the charge/discharge process. [6][7][8][9] Carbonaceous materials as electrode materials have numerous advantages such as low cost, high specific area, and good stability.…”

Section: Introductionmentioning

confidence: 99%

“…[8,9] Conductive polymers and metal oxides are common electrode materials owing to easy preparation and processing, tunable conductivity and reversible redox characteristics, but the samples exhibit low cycle stabilities due to the structural defects appeared during the charge/discharge process. [6][7][8][9] Carbonaceous materials as electrode materials have numerous advantages such as low cost, high specific area, and good stability. [4,5] However, most carbons as electrode materials generally store the energy via the electrical double-layer (EDLC) mechanism, [2,10] which restricting their electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

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Green Synthesis of Pyridyl Conjugated Microporous Polymers as Precursors for Porous Carbon Microspheres for Efficient Electrochemical Energy Storage

Cheng

Zuo

et al. 2020

ChemElectroChem

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Efficient materials for electrochemical energy storage have received much attention. Herein we report a green metal‐free route to synthesize pyridyl conjugated microporous polymers (PCMPs) as precursors for nitrogen‐doped porous carbon microspheres (NCMs) with high surface areas up to 1232 m2 g−1 via a simple carbonization method. The resulting NCMs as supercapacitor electrodes exhibit high specific capacitance of 324 F g−1 at a current density of 0.1 A g−1, and high rate ability (182 F g−1 at 10 A g−1), and excellent cyclability (remained >97 % of initial capacitance at 2 A g−1 after 10000 cycles). This work also presents that molecular engineering of PCMP precursor, pyrolysis temperature and charge/discharge cycling allow the electrochemical energy storage properties of the NCMs to be controlled.

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