Enhanced supercapacitive performance of delaminated two-dimensional titanium carbide/carbon nanotube composites in alkaline electrolyte

Yan, Pengtao; Zhang, Ruijun; Jia, Jin; Wu, Chao; Zhou, Aiguo; Xu, Jiang; Zhang, Xuesha

doi:10.1016/j.jpowsour.2015.03.017

Cited by 212 publications

(101 citation statements)

References 28 publications

(22 reference statements)

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“…[148] Solution mixing is the most common method to form the MXene/CNT composites. [70,75,132,148,151,152] MXene/CNT composites can adsorb other function materials, such as in Ti 3 C 2 T x /CNTs/S composite, where sulfur is a cathode material for lithium-sulfur batteries. The surfaces of these functionalized MXenes are negatively charged.…”

Section: Mxene-carbon Nanotubes Compositesmentioning

confidence: 99%

“…MXenes can be composited with many materials that do not provide pseudocapacitance, such as EG, [136] rGO, [140] CNTs [152] and so on. In MXenes/rGO composites, rGO film can go into the interlamination of MXene layers, which causes the restacking of the MXene layers to be suppressed.…”

Section: Mxene/carbon-based Supercapacitor Electrodesmentioning

confidence: 99%

“…Therefore, MXene/rGO films will be suitable electrode materials in flexible supercapacitors [131,140,152] and all-solid-state supercapacitors (ASSSs). Furthermore, rGO films and Ti 3 C 2 T x films are flexible, so the Ti 3 C 2 T x /rGO flake can be even more flexible.…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

“…Therefore, MXene/rGO films will be suitable electrode materials in flexible supercapacitors [131,140,152] and all-solid-state supercapacitors (ASSSs). [75,132,152,155] Moreover, MXene/CNTs materials can be used in the SCs with organic electrolytes and these SCs have demonstrated good electrochemical properties. For example, an MXene/ rGO nanofiber has been prepared, and the performance of this material is obviously improved because the special structure reduces resistance.…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

“…[75,132,152,155] Moreover, MXene/CNTs materials can be used in the SCs with organic electrolytes and these SCs have demonstrated good electrochemical properties. [152,156] For example, the CNTs grow vertically from the PDA lead to more thorough separation of MXene layers and obtain a better capacity. [48,155] Even in EMITFSI electrolyte, the Ti 3 C 2 T x /CNT composites show good electrochemical performance (Figure 4d).…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

See 4 more Smart Citations

MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors

Yang

Bao

Jaumaux

et al. 2019

Adv Materials Inter

229

142

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The family of 2D transition metal carbides, nitrides, and carbonitrides (collectively called MXenes) is rapidly studied since the initial synthesis of Ti3C2Tx (MXene). The surface of MXenes etched by hydrofluoric acid has hydrophilic groups (F, OH, and O), which leads the surface to be negatively charged. Consequently, the negatively charged surface can facilitate the compounding of MXenes with other positively charged materials and prevent MXenes from aggregating with some negatively charged substances, thus promoting the formation of a stable dispersion. The MXene‐based composites have better electrochemical performance than both precursors due to synergistic effects. This review elaborates and discusses the development of MXene‐based composites. It is aimed to summarize the various methods of fabricating MXene‐based composites. The applications of MXene‐based composites in batteries and supercapacitors are presented along with analysis of their excellent electrochemical performances. Finally, the authors propose the approach for further enhancing the electrochemical performances of MXene‐based composite electrode materials.

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Section: Mxene-carbon Nanotubes Compositesmentioning

confidence: 99%

Section: Mxene/carbon-based Supercapacitor Electrodesmentioning

confidence: 99%

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

See 3 more Smart Citations

MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors

Yang

Bao

Jaumaux

et al. 2019

Adv Materials Inter

229

142

View full text Add to dashboard Cite

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Chemically Modified Carbon Nanotubes in Energy Production and Storage

Mohamed¹,

Mousa²,

Mazrouaa³

2022

Chemically Modified Carbon Nanotubes for Commercial Applications

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Flexible MXene/Graphene Films for Ultrafast Supercapacitors with Outstanding Volumetric Capacitance

Yan

Ren

Maleski

et al. 2017

Adv Funct Materials

1,436

1,053

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Due to their unique properties and diversity, two-dimensional (2D) nanomaterials have attracted tremendous interest from the scientific community in recent years, especially for energy storage applications. Herein, we present a strategy to prepare flexible and conductive MXene/graphene (reduced graphene oxide, rGO) supercapacitor electrodes by using electrostatic self-assembly between positively charged rGO with poly(diallyldimethylammonium chloride) and negatively charged MXene nanosheets. After electrostatic assembly, rGO nanosheets are inserted in-between MXene layers. As a result, the self-restacking of MXene nanosheets is effectively prevented, leading to a considerably increased interlayer spacing. Accelerated diffusion of electrolyte ions enables more electroactive sites to become accessible. The as-prepared freestanding MXene/rGO-5wt% electrode displays a volumetric capacitance of 1040 F cm -3 at a scan rate of 2 mV s -1 and anThis article is protected by copyright. All rights reserved.3 impressive rate capability with 61% capacitance retention at 1 V s -1 . Moreover, the film electrode exhibits long cycle life with almost no capacitance decay after 20,000 cycles. More importantly, our binder-free, symmetric supercapacitor fabricated with MXene/rGO-5wt%shows a maximum volumetric energy density of 34.6 Wh L -1 and an ultrahigh volumetric power density up to 74.4 kW L -1 , which is among the highest values reported for carbon and MXene based materials in aqueous electrolytes. This work not only provides fundamental insight into the effect of interlayer spacing on the electrochemical performance of 2D hybrid materials, but also sheds light on the design of next-generation flexible, portable and highly integrated supercapacitors with high volumetric and rate performances.

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Enhanced supercapacitive performance of delaminated two-dimensional titanium carbide/carbon nanotube composites in alkaline electrolyte

Cited by 212 publications

References 28 publications

MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors

MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors

Chemically Modified Carbon Nanotubes in Energy Production and Storage

Flexible MXene/Graphene Films for Ultrafast Supercapacitors with Outstanding Volumetric Capacitance

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