Interfacial Kinetics Regulation of MoS<sub>2</sub>/Cu<sub>2</sub>Se Nanosheets toward Superior High‐Rate and Ultralong‐Lifespan Sodium‐Ion Half/Full Batteries

Wang, Bo; Xue, Jiang‐Yan; Li, Feilong; Geng, Hongbo; Lang, Jian‐Ping

doi:10.1002/cssc.202101856

Cited by 13 publications

(10 citation statements)

References 53 publications

(67 reference statements)

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“…This value is comparable with the most recent Cu 2 Se and other chalcogenide materials tested in NIBs (in the range of 70–100%). [ 16,50–56 ]…”

Section: Resultsmentioning

confidence: 99%

“…This value is comparable with the most recent Cu 2 Se and other chalcogenide materials tested in NIBs (in the range of 70-100%). [16,[50][51][52][53][54][55][56] The rate performance was then investigated for further assessment of the electrochemical performance (Figure 4d). The non-porous sample delivers the reversible specific capacities of 388, 259, 238, and 239 mAh g −1 at 100, 200, 500, and 1000 mA g −1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

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Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu₂Se as a Potential High‐Rate Anode for Sodium‐Ion Battery

Nagaura

Fernando

et al. 2022

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Figure 5. a,b) CV curves of non-porous (a) and 18-nm pore (b) samples at different scan rates from 0.2 to 1.2 mV s −1 . c,d) Relationship between log (i) and log (v) for non-porous (c) and 18-nm pore (d) samples. e,f) Capacitive contribution region of non-porous (e) and 18-nm pore (f) samples at 1 mV s −1 . g,h) Capacitive and diffusion-controlled behavior ratios of non-porous (g) and 18-nm pore (h) samples at different scan rates.

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“…This value is comparable with the most recent Cu 2 Se and other chalcogenide materials tested in NIBs (in the range of 70–100%). [ 16,50–56 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu₂Se as a Potential High‐Rate Anode for Sodium‐Ion Battery

Nagaura

Fernando

et al. 2022

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“…[313] Metal selenides have weaker electronegativity, larger ionic radius, higher conductivity, and lattice volume than metal sulfides, so they have better potential application in SIBs. [314] Early in 2013, Cu 2−x Se was used as the anode with a specific capacity of 120 mAh g −1 after 100 cycles. [315] Recently, Lin et al improved the storage capacity to 295 mAh g −1 at 10 A g −1 by designing a cubic phase CuSe with crystal-pillar-like morphology self-assembled by the nanosheets.…”

Section: Applicationsmentioning

confidence: 99%

Emerging 2D Copper‐Based Materials for Energy Storage and Conversion: A Review and Perspective

Ren

Wang

Chen

et al. 2022

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extensive interest, [1][2][3] such as SCs, [4] rechargeable ion batteries, [5] water splitting, [6] metal-air batteries, [7] and CO 2 RR. [8] However, the practical applications of SCs and rechargeable ion batteries are limited by low energy density and low power density, respectively. [9,10] The multiple-electron transfer reactions in water splitting have posed a significant challenge that limits the catalytic efficiency and cycle stability. [11] At present, the urgent issue of metal-air battery is to design high-performance bifunctional electrodes. [12] For CO 2 RR, the technical realization is limited by the activity and selectivity of the catalyst, and the selectivity of its product beyond that of CO. [13,14] In these electrochemical devices, electrodes represent the core component, which dictates the efficiency, energy and power density, as well as catalytic activity and durability.Since the birth of graphene, 2D materials have attracted great attention due to their unique electrochemical, mechanical, and optical properties and diverse applications, as manifested in over 3000 academic papers each year. [15,16] 2D materials possess some structural advantages over the 0D and 1D counterparts by interlayer gap bonding and weak out-of-plane Van der Waals interaction, which provides an interesting platform for energy storage and conversion research. [17,18] So far, the 2D material family mainly includes transition metal dichalcogenides, transition metal carbides, layered metal oxides, layered double hydroxides and other graphene-like materials, such as black phosphorus. Of these, copper-based materials have received extensive attention because of high natural abundance, low price, high strength, arc erosion resistance, easy preparation of various nanoshapes, wear resistance, etc. (Figure 1), [19,20] leading to excellent electrochemical performance and advancement of electrochemical energy storage and conversion (Figure 2). For example, with a large surface area and potential size effect, CuO nanostructures, a p-type semiconductor, have excellent physical and chemical properties for SCs, as well as interesting magnetic and superhydrophobic properties, as compared with other metal oxides, such as TiO 2 , ZnO, WO 3 , and SnO 2 . [21] Cu-S compounds are a promising lithium cathode with a high energy density and long cycling stability. [22] Cu-Se is also considered as a novel cathode 2D materials have shown great potential as electrode materials that determine the performance of a range of electrochemical energy technologies. Among these, 2D copper-based materials, such as Cu-O, Cu-S, Cu-Se, Cu-N, and Cu-P, have attracted tremendous research interest, because of the combination of remarkable properties, such as low cost, excellent chemical stability, facile fabrication, and significant electrochemical properties. Herein, the recent advances in the emerging 2D copper-based materials are summarized. A brief summary of the crystal structures and synthetic methods is started, and innovative strategies for improving electro...

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“…Among the limited choice of anode materials for SIBs encompassing hard carbon, metal oxides, metal sulfides, and metal selenides, , tin selenides (SnSe and SnSe 2 ) with unique layered structure and large interlayer spacing have attracted increasing attention in virtue of the high theoretical capacities (780 and 756 mA h g –1 ) arising from the combined mechanism of conversion and alloying reaction and preferable reversibility due to the relatively weaker M (metal)-Se bonds as compared with their oxide and sulfide counterparts . However, the inherently low electrical conductivity, shuttling effects from dissolved polyselenides, as well as serious aggregation and pulverization of tin selenides commonly result in dramatic deterioration of the electrochemical properties with inferior rate capability and fast capacity fading upon cycling. , In this regard, several efficient strategies involving micro/nanostructure engineering and combination of carbonaceous materials ( e.g.…”

Section: Introductionmentioning

confidence: 99%

“…7 Hence, the practical utilization of SIBs is greatly restricted by the lack of suitable anode materials, and exploiting appropriate anode materials with satisfied energy capacity and cycling durability is urgently necessary, which still remains a big challenge. 8 Among the limited choice of anode materials for SIBs encompassing hard carbon, 9 metal oxides, 10 metal sulfides, and metal selenides, 11,12 tin selenides (SnSe and SnSe 2 ) with unique layered structure and large interlayer spacing have attracted increasing attention in virtue of the high theoretical capacities (780 and 756 mA h g −1 ) arising from the combined mechanism of conversion and alloying reaction 13 and preferable reversibility due to the relatively weaker M (metal)-Se bonds as compared with their oxide and sulfide counterparts. 14 conductivity, shuttling effects from dissolved polyselenides, as well as serious aggregation and pulverization of tin selenides commonly result in dramatic deterioration of the electrochemical properties with inferior rate capability and fast capacity fading upon cycling.…”

Section: ■ Introductionmentioning

confidence: 99%

Spatially Confined Synthesis of SnSe Spheres Encapsulated in N, Se Dual-Doped Carbon Networks toward Fast and Durable Sodium Storage

Hou

Zhu

et al. 2022

ACS Appl. Mater. Interfaces

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On account of the high theoretical capacity and preferable electrochemical reversibility, tin selenides have emerged as potential anode materials in the field of sodium ion batteries (SIBs). Unfortunately, the large volume changes, low electrical conductivity, and shuttling effect of polyselenides have impeded their real application. In this work, we present a spatially confined reaction approach for controllable fabrication of SnSe spheres, which are embedded in polydopamine (PDA)-derived N, Se dual-doped carbon networks (SnSe@NSC) through a one-step carbonization and selenization method. The NSC shell can not only buffer the volume changes during the cycling but also ensure strong coupling interaction between the SnSe core and carbon shell through Sn–C bonds, leading to excellent conductivity and structural integrity of the composite. Meanwhile, DFT theory calculations confirm that N, Se codoping in the carbon shell can endow the composite with enhanced adsorption energy and accelerated transfer ability of Na+. Consequently, the SnSe@NSC anode exhibits a high discharge capacity of 302.6 mA h g–1 over 500 cycles at 1 A g–1 and a competitive rate capability of 285.3 mA h g–1 at 10 A g–1. Additionally, a sodium ion full battery is assembled by coupling the SnSe@NSC anode with the cathode of Na3V2(PO4)3 and verified with good cycling durability (190 mA h g–1 at 1 A g–1 over 500 cycles) and high energy density (204.3 W h kg–1). Our scalable and facile design of heterostructured SnSe@NSC provides a new avenue to develop novel advanced anode materials for SIBs.

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Interfacial Kinetics Regulation of MoS₂/Cu₂Se Nanosheets toward Superior High‐Rate and Ultralong‐Lifespan Sodium‐Ion Half/Full Batteries

Cited by 13 publications

References 53 publications

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu₂Se as a Potential High‐Rate Anode for Sodium‐Ion Battery

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu₂Se as a Potential High‐Rate Anode for Sodium‐Ion Battery

Emerging 2D Copper‐Based Materials for Energy Storage and Conversion: A Review and Perspective

Spatially Confined Synthesis of SnSe Spheres Encapsulated in N, Se Dual-Doped Carbon Networks toward Fast and Durable Sodium Storage

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Interfacial Kinetics Regulation of MoS2/Cu2Se Nanosheets toward Superior High‐Rate and Ultralong‐Lifespan Sodium‐Ion Half/Full Batteries

Cited by 13 publications

References 53 publications

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu2Se as a Potential High‐Rate Anode for Sodium‐Ion Battery

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu2Se as a Potential High‐Rate Anode for Sodium‐Ion Battery

Emerging 2D Copper‐Based Materials for Energy Storage and Conversion: A Review and Perspective

Spatially Confined Synthesis of SnSe Spheres Encapsulated in N, Se Dual-Doped Carbon Networks toward Fast and Durable Sodium Storage

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Interfacial Kinetics Regulation of MoS₂/Cu₂Se Nanosheets toward Superior High‐Rate and Ultralong‐Lifespan Sodium‐Ion Half/Full Batteries

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu₂Se as a Potential High‐Rate Anode for Sodium‐Ion Battery

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu₂Se as a Potential High‐Rate Anode for Sodium‐Ion Battery