Constructing electronic interconnected bimetallic selenide-filled porous carbon nanosheets for stable and highly efficient sodium-ion half/full batteries

Zhang, Lei; Li, Xiao; Tai, Linlin; Shen, Chunping; Yang, Jun; Sun, Chencheng; Geng, Hongbo; Zuo, Xiaobing

doi:10.1039/d1nr05521f

Cited by 26 publications

(11 citation statements)

References 56 publications

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“…To study the reaction in the de/intercalation of Na + , we marked two obvious peaks as peak 1 and 2. The equation: log(i)=b log(v)+log(a) (In the equation, i means the current while v stands for the scan rate) reveals the relationship between i and v [17] After calculation, the slopes of two peaks are 0.88 and 0.94, which demonstrate the leading role of pseudocapacitive behavior (Figure 5b). To investigate the reaction of capacitive behavior in the electrochemical process quantificationally, deeper calculation was operated.…”

Section: Resultsmentioning

confidence: 99%

Boosting Pseudo‐capacitive Sodium Storage in Ultrafine Titanium Dioxide by an In‐situ Porous Forming Strategy

et al. 2022

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Due to its properties (stable, affordable and non‐toxic), titanium dioxide (TiO2) has a promising future as electrode material for sodium‐ion batteries (SIBs). Its Na+ insertion/deinsertion mechanism, on the other hand, results in poor electronic conductivity and sluggish ionic diffusivity, leading to rapid capacity fading. Herein, a molten salt method is employed to creat abundant carbon pores framework, being capable of supporting plentiful ultra‐fine TiO2 adhering (U‐TiO2/C). With this unique porous structure of lots of exposed active sites, the U‐TiO2/C composite provides a faster ions transport and volume expansion buffer zone during cycling. As anode for SIBs, the U‐TiO2/C manifests splendid electrochemical performance. Specifically, the U‐TiO2/C electrode delivers a high capacity of 202.7 mAh g−1 after 100 cycles at 0.1 A g−1 and 91.4 mAh g−1 at 1.0 A g−1 after 160 cycles. Even with the increased current density to 10.0 A g−1, the U‐TiO2/C electrode still performs a high capacity of 69.5 mAh g−1 after 2500 cycles. Detailed kinetic analysis has been investigated to quantificationally demonstrate that the surface pseudocapacitive storage behavior plays a dominant role in the enhanced sodium storage.

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Section: Resultsmentioning

confidence: 99%

Boosting Pseudo‐capacitive Sodium Storage in Ultrafine Titanium Dioxide by an In‐situ Porous Forming Strategy

et al. 2022

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“…20 To date, transition metal oxides, phosphates, and polymers have been studied extensively as electrodes in rechargeable batteries, albeit with certain drawbacks. [21][22][23] Among them, Prussian blue analogues (PBAs) with open three-dimensional frameworks stand out as a group of interesting electrode materials in diverse battery systems due to reversible redox chemistry, appealing wide open structures, and varied ionstorage capability. [24][25][26][27] The PBAs are a kind of metal hexacyanide materials, which are named as A x M a [M b (CN) 6 ] y •zH 2 O.…”

Section: Introductionmentioning

confidence: 99%

Interface and electronic structure engineering induced Prussian blue analogues with ultra-stable capability for aqueous NH₄⁺storage

et al. 2022

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“…In recent years, lithium-ion batteries (LIBs) have been commonly used in mobile electronic devices and electric vehicles as efficient energy storage devices [3][4][5]. However, Due to the lack of lithium resources, LIBs will not meet the market demand in the long term [6][7][8]. Due to the low cost and abundant storage of sodium, sodium-ion batteries (SIBs), which have a similar energy storage mechanism with LIBs, have been regarded as a promising candidate [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Electronic modulation and structure engineered MoSe2 with multichannel paths as an advanced anode for sodium-ion half/full batteries

Lin

Dong

et al. 2022

Sci. China Mater.

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Owing to the abundance and low price of sodium, researches on sodium-ion batteries (SIBs) as a lithiumion battery (LIB) alternative are emerging as a consensus. It is crucial to develop electrode materials suitable for sodium storage. In recent years, two-dimensional (2D) layered transition metal disulfide compounds (TMDs) have trigered interest in the realm of energy and environmental fields. In particular, MoSe 2 is thought to be a suitable material for SIBs due to its wide original layer spacing and high conductivity. Herein, N-doped dual carbon-coated MoSe 2 with multichannel paths (MoSe 2 /multichannel carbon nanofibers (MCFs)@NC) is fabricated via electrospinning, followed by a selenation and carbonization process. The existence of a 3D conductive network, abundant void spaces, and sufficient electron transportation pathways are conducive to rapid and fast charge transfer kinetics under volume expansion stress. When applied in SIBs, the MoSe 2 /MCFs@NC shows a high capability (319 mA h g −1 at 10 A g −1 ), as well as good cycling stability (303 mA h g −1 after 1100 cycles at 10 A g −1 ). Furthermore, coupled with the Na 3 V 2 (PO 4 ) 2 O 2 F cathode, the full cell also exhibits excellent performance. The theoretical calculation of the MoSe 2 /MCFs@NC confirms that the superiority of its SIB performance is owing to the strong interaction between the double-doped carbon and MoSe 2 . This scheme provides a wide space for preparing high-performance electrode materials for SIBs.

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Constructing electronic interconnected bimetallic selenide-filled porous carbon nanosheets for stable and highly efficient sodium-ion half/full batteries

Abstract: Because of their large theoretical capacity and relatively high electronic conductivity, transition metal selenides have been investigated as potential anodes for energy storage applications. On the other hand, the quick...

Cited by 26 publications

References 56 publications

Boosting Pseudo‐capacitive Sodium Storage in Ultrafine Titanium Dioxide by an In‐situ Porous Forming Strategy

Boosting Pseudo‐capacitive Sodium Storage in Ultrafine Titanium Dioxide by an In‐situ Porous Forming Strategy

Interface and electronic structure engineering induced Prussian blue analogues with ultra-stable capability for aqueous NH₄⁺storage

Electronic modulation and structure engineered MoSe2 with multichannel paths as an advanced anode for sodium-ion half/full batteries

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Constructing electronic interconnected bimetallic selenide-filled porous carbon nanosheets for stable and highly efficient sodium-ion half/full batteries

Abstract: Because of their large theoretical capacity and relatively high electronic conductivity, transition metal selenides have been investigated as potential anodes for energy storage applications. On the other hand, the quick...

Cited by 26 publications

References 56 publications

Boosting Pseudo‐capacitive Sodium Storage in Ultrafine Titanium Dioxide by an In‐situ Porous Forming Strategy

Boosting Pseudo‐capacitive Sodium Storage in Ultrafine Titanium Dioxide by an In‐situ Porous Forming Strategy

Interface and electronic structure engineering induced Prussian blue analogues with ultra-stable capability for aqueous NH4+storage

Electronic modulation and structure engineered MoSe2 with multichannel paths as an advanced anode for sodium-ion half/full batteries

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Interface and electronic structure engineering induced Prussian blue analogues with ultra-stable capability for aqueous NH₄⁺storage