Two-dimensional Sc2C: A reversible and high-capacity hydrogen storage material predicted by first-principles calculations

Hu, Qianku; Wang, Haiyan; Wu, Qinghua; Xiao-tao, YE; Zhou, Aiguo; Sun, Dandan; Wang, Libo; Liu, Baozhong; He, Julong

doi:10.1016/j.ijhydene.2014.05.037

Cited by 185 publications

(91 citation statements)

References 42 publications

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“…2D materials with large surface areas are most promising for hydrogen storage [143,144]. The calculations show that pristine Sc 2 C, Ti 2 C, and V 2 C might be used as hydrogen storage media [64,65]. Sc 2 C with the largest surface area among all MXenes possesses the 9.0 wt.%, which is higher than gravimetric storage capacity target, 5.5 wt.% by 2015, set by United States Department of Energy.…”

Section: Energy Storage: Hydrogen Storage Ion Batteries and Supercamentioning

confidence: 97%

“…Theoretically, many applications have been proposed for MXenes in electronic [39][40][41][42][43], magnetic [44][45][46][47][48], optical [49,50], thermoelectric [51][52][53][54][55][56], and sensing devices [57], as well as being new potential materials for catalytic and photocatalytic reactions [58][59][60][61][62][63], hydrogen storage media [64,65], and nanoscale superconductivity [66]. Some of MXenes are predicted to be topological insulators with large band gaps involving only d orbitals [67][68][69][70][71].…”

Section: Introductionmentioning

confidence: 99%

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Electronic properties and applications of MXenes: a theoretical review

et al. 2017

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Recent chemical exfoliation of layered MAX phase compounds to novel two-dimensional transition metal carbides and nitrides, so called MXenes, has brought new opportunity to materials science and technology. This review highlights the computational attempts that have been made to understand the physics and chemistry of this very promising family of advanced two-dimensional materials, and to exploit their novel and exceptional properties for electronic and energy harvesting applications.

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Section: Energy Storage: Hydrogen Storage Ion Batteries and Supercamentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Electronic properties and applications of MXenes: a theoretical review

et al. 2017

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“…In fields other than electrochemistry, MXenes' unique structures and properties provide the material class with many other potential applications, including adsorbents [16,65], hydrogen storage media [66,67], catalyst supporters [21,68,69], additives [70,71], and many others [72][73][74][75]. However, many of these applications are still hypothetical or at the fundamental stage.…”

Section: Other Applicationsmentioning

confidence: 99%

“…The results showed that hydrogen can be adsorbed on both sides of Ti 2 C, with a calculated maximum capacity of 8.6 wt.%, exceeding the target value of 5.5 wt.%. The hydrogen storage performance of Sc 2 C was also studied computationally [67]. The result (9.0 wt.%) exceeded even that of Ti 2 C. Therefore, MXenes may be fascinating materials for hydrogen storage, pending experimental confirmation.…”

Section: Other Applicationsmentioning

confidence: 99%

Recent advances in MXene: Preparation, properties, and applications

2015

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Owing to the exceptional properties of graphene, intensive studies have been carried out on novel two-dimensional (2D) materials. In the past several years, an elegant exfoliation approach has been used to successfully create a new family of 2D transition metal carbides, nitrides, and carbonitrides, termed MXene, from layered MAX phases. More recently, some unique properties of MXene have been discovered leading to proposals of potential applications. In this review, we summarize the latest progress in development of MXene from both a theoretical and experimental view, with emphasis on the possible applications.

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“…MXenes have important application in many areas, such as hydrogen storage [18,19], lead adsorption [20], and catalysis [21]. Especially, as conductive and hydrophilic 2D materials [14], MXenes are promising electrode materials for electrochemical energy storage  [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical performance of Ti3C2 supercapacitors in KOH electrolyte

Gao

Wang

et al. 2015

J Adv Ceram

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Two-dimensional (2D) carbide Ti 3 C 2 was synthesized by exfoliating Ti 3 AlC 2 in HF solution and used for supercapacitive performance investigation in 3 M KOH electrolyte. The specific surface area (SSA) of as-synthesized Ti 3 C 2 was 22.35 m 2 /g. Ti 3 C 2 -based supercapacitor electrodes exhibited good energy storage ability and had a volumetric capacitance 119.8 F/cm 3 at the current density of 2.5 A/g. Moreover, the addition of carbon black into Ti 3 C 2 powders greatly improved the performance of Ti 3 C 2 -based capacitors because carbon black restrained the preferred orientation of 2D Ti 3 C 2 , providing fast ion transport channels, and in turn, decreasing electrical resistance from 16.7 Ω to 3.5 Ω.

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Two-dimensional Sc2C: A reversible and high-capacity hydrogen storage material predicted by first-principles calculations

Cited by 185 publications

References 42 publications

Electronic properties and applications of MXenes: a theoretical review

Electronic properties and applications of MXenes: a theoretical review

Recent advances in MXene: Preparation, properties, and applications

Electrochemical performance of Ti3C2 supercapacitors in KOH electrolyte

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