LANGMUIR
·
2022
·
IF 4.331
Haohao Zhang,Zhen Kong,Xing Gao,Jianxiong Wang,Lina Tian,Yapeng Yuan,Jibin Song,Hongliang Li
Rational design of electrode materials with an excellent structure and morphology is crucial for improving electrochemical properties. Herein, various unique nanostructured Bi2S3 materials with controllable morphology were obtained through a simple and efficient oil bath reaction strategy. Bi2S3 with different morphologies can be obtained by regulating the polarity of solvent, and the lattice spacing can also be adjusted. The Bi2S3 nanomaterials obtained with ethanol as solvent (BS-3) show a three-dimensional nanoflower-like structure assembled with porous layers. The unique structure facilitates the transport of ions and accommodates the volume variation of Bi2S3 during energy storage. Consequently, BS-3 nanoflowers exhibited superior cycling stability and excellent high-rate capability for lithium storage (maintained a high capacity of 923.8 mA h g–1 after 950 cycles at 1.0 A g–1) and excellent sodium storage. We provide guidance for precise synthesis and energy storage application of Bi2S3 nanomaterials.
研究领域:
材料科学
·
能源存储
·
纳米技术
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 43
·22874-22885
·
IF 11.301
Yamin Zhang,Zhongpu Wang,Deping Li,Qing Sun,Kangrong Lai,Kaikai Li,Qunhui Yuan,Xingjun Liu,Lijie Ci
Porous carbon has attracted extensive attention as an electrode material for various energy storage devices considering its advantages such as high theoretical capacitance/capacity, high conductivity, low cost and earth abundance. However, there still exist limitations hindering its practical applications, such as the tedious fabrication process, limited metal-ion transport kinetics and undesired structural deformation under harsh electrochemical conditions. Herein, we report a facile strategy, with calcium gluconate as the carbon source, to fabricate ultrathin porous carbon nanosheets. The as-prepared Ca-900 electrode delivers excellent K-ion storage performance including high reversible capacity (413.7 mA h g−1), superior rate capability (161.8 mA h g−1 at an ultrahigh current density of 5.0 A g−1) and ultra-stable long-term cycling stability (a high capacity retention ratio of ∼75.0% after 5500 cycles at 5.0 A g−1). Similarly, when being applied in Zn-ion hybrid capacitors, the Ca-900 electrode exhibits a high energy density of 75.22 W h kg−1, illustrating the application potential. Moreover, the origin of the fast and smooth metal-ion storage is also revealed by carefully designed consecutive CV measurements. Both K-ion/Zn-ion storage mechanisms are preliminarily revealed through ex situ measurements. Overall, considering the facile preparation strategy, unique structure, application flexibility and in-depth mechanistic investigations, it can be seen that this work will deepen the fundamental understanding of potassium-ion batteries and serve as a reference for the development of porous carbon materials for other highly efficient energy storage devices.
研究领域:
材料科学
·
能源存储
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2020
·Vol. 31
·期 3
·2006425
·
IF 16.836
Shuanggui Zhang,Lifeng Qiu,Yang Zheng,Qiufan Shi,Tengfei Zhou,Vitor Sencadas,Yuling Xu,Shilin Zhang,Longhai Zhang,Chaofeng Zhang,Chuan-Ling Zhang,Shu-Hong Yu,Zaiping Guo
Among the various semiconductor materials, zinc telluride possesses the lowest electron affinity and ultrafast charge separation capability, facilitating improved charge transfer kinetics. In addition, ZnTe has a relatively high density, contributing to high volumetric capacity. Here, 1D N-doped carbon-coated ZnTe core-shell nanowires (ZnTe@C) are designed and prepared via a facile ion-exchange and carbonization technique. When evaluated as anode for metal ion batteries, it demonstrates superior electrochemical performance in both Li and Na ion storage, including high gravimetric and volumetric capacities (1119 mA h g −1 and 906 mA h cm −3 , respectively, at 100 mA g −1 for Li ion storage), excellent high-rate capability, and long-term cycling stability. This remarkable electrochemical performance is attributed to the low electron affinity and high density of ZnTe, and the amorphous nature of the N-doped carbon layer in the heterostructured ZnTe@C nanowires, which not only provide fast charge transfer paths, but also effectively maintain the structural and electrical integrity of the ZnTe. The strategy of embedding high density and high-performance active materials in highly conductive nanostructures represents an effective way of achieving electrode materials with excellent gravimetric and volumetric capacities towards superior energy storage systems.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2021
·Vol. 17
·期 25
·2100538
·
IF 13.281
Kaiqiang Zhou,Ruoxue Qiu,Yichao Zhen,Zhigao Huang,Sanjay Mathur,Zhensheng Hong
Carbonaceous materials exhibit promising application in electrochemical energy storage especially for hollow or porous structure due to the fascinating and outstanding properties. Although there has been achieved good progress, controllable synthesis of hollow or porous carbons with uniform morphology by a green and easy way is still a challenge. Herein, a new artful and green approach is designed to controllably prepare hollow porous carbon materials with the assistance of boron oxide vitreum under a relatively low temperature of 500 °C. The vitreous B 2 O 3 provides a flowing carbonization environment and acts as etching agent accompanying with boron doping. By this general strategy, hollow and porous carbon architectures with various morphology of spheres and hollow polyhedrons are successfully fabricated by metal organic framework (MOF) precursors. Furthermore, such hollow carbon materials exhibit considerably excellent Na + /K + storage properties through enhanced capacitive behavior due to due to the highly porous structure and large surface area. It is notable that hollow carbon spheres display nearly 90% initial Coulombic efficiency, outstanding rate capability with 130 mAh g -1 at 30 A g -1 and long cycling life for sodium ion storage.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Huilin Fan,Pengchang Mao,Gongxu Lan,Chang Liu,Jiayuan Chen,Zhiyuan Wang,Zhipeng Li,Runguo Zheng,Yanguo Liu,Hongyu Sun
Two-dimensional (2D) ultrathin MoS2 nanosheets, owing to their abundant active sites, tunable interlayer space, and favored ion and mass diffusion, show promise as anode materials for energy storage. However, the low electronic conductivity due to the intrinsic semiconductor structure (2H-MoS2), the spontaneous aggregation caused by the large van der Waals force between layers, and the huge volume alteration during the entire reaction hinder the practical applications of MoS2-based anodes. Here, by employing a facial solvothermal approach, we uniformly disperse metallic-phase MoS2 (1T-MoS2) nanosheets on the functionalized carbon nanotube (CNT) surface to form a 1D@2D hierarchical architecture. The obtained CNT@1T-MoS2 composites show strong covalent interface interaction and improved electronic conductivity. The distinct phase layout, morphology, and component impart the CNT@1T-MoS2 electrode with outstanding sodium-storage performance. The CNT@1T-MoS2 electrode retains a capacity of 542.3 mA h g–1 at 0.1 A g–1 after 50 cycles. Even at a large current density of 20 A g–1, the electrode still gives a high capacity of 153.4 mA h g–1. Moreover, when it is applied in lithium storage, the CNT@1T-MoS2 electrode also possesses good stability with a capacity up to 913.5 mA h g–1 experiencing 50 cycles at 0.1 A g–1 as well as satisfactory fast-charging capability (613.6 mA h g–1 at 5A g–1). This work shows that controlling the phase structure and interface interaction is effective to boost the application of transition-metal dichalcogenide-based composite electrodes in energy storage and conversion.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Rui Liu,Huanzhong Zeng,Yuanyou Peng,Yumeng Wang,Fen Ran
The diffusion of lithium ions and sodium ions in the anode materials is the main factor limiting the fast-charging performance of lithium and sodium-ion batteries. Due to the slow diffusion kinetics, taking lithium-ion batteries as an example, lithium ions and electrons accumulate locally in and on the surface of anode materials, especially in the process of fast-charging, resulting in uneven lithiation reaction and enormous transient stress, which leads to poor fast-charging performance. In this work, from the aspect of solving the ion diffusion rate, a capacitive type of energy storage is introduced by designing MoS 2 /rGO composite materials with pinned structures as fast-charging and stable anode materials for lithium-ion batteries and sodium-ion batteries. Combining the high ion conductivity and structural rigidity of the rGO conductive network with a few-layer MoS 2 provides a high ion diffusion rate and capacity. As expected, it can charge to 69 % in 25 min and 44 % in 3.2 min, respectively, providing a high capacity of 214.2 mAh g −1 at 10 A g −1 and a high-capacity retention of 85.31 % after 1, 000 cycles at the current density of 3 A g −1 in sodium-ion batteries. Similarly, the high reversible capacity of 910.5 mAh g −1 is achieved in the lithium-ion batteries, and there is almost no capacity loss after 1, 000 cycles at a high current density of 2 A g −1 . This work may provide a reference for designing more fast-charging anode materials with high capacity.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2023
·Vol. 29
·期 9
·3559-3572
·
IF 2.8
Wang Hua-Ying,Yang Xiao-Xiao,Gao Fen,Zhang Bo-Han,Wen Wan-Xin,Chen Jing-Zhou,Hou Yun-Lei,Zhao Dong-Lin
Laminated metal sulfide is a unique material with a graphite-like structure and good storage capacity for both lithium and sodium ions. However, the inherent low electrical conductivity and severe volume expansion of SnS 2 lead to poor electrochemical properties, further limiting practical applications. In this work, a nitrogen-doped carbon (NC) and reduced graphene oxide (rGO) co-decorated SnS 2 nanoplatelets (SnS 2 /NC-rGO) using dopamine (PDA) and graphene oxide (GO) as carbon sources are cleverly designed. SnS 2 /NC wrapped with rGO is synthesized via hydrothermal followed by calcination. This design not only increases the electrical conductivity of the composite but also provides more pathways for ions/electrons. Furthermore, the larger specific surface area of the composite allows better contact between the electrolyte and the electrode, which further enhances the redox dynamics of lithium ions/sodium ions. Thanks to this structure, the charge/discharge specific capacity of the SnS 2 /NC-rGO composite electrode is 1215.8/1220.7 mAh g −1 after 200 cycles at 0.1 A g −1 . The superior sodium storage performance has also been demonstrated in sodium-ion batteries, where a high specific capacity of 501.6 mAh g −1 can be achieved after 80 cycles at a current density of 0.1 A g −1 .
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
IONICS
·
2025
·
IF 2.6
Han Jingjing,Ju Xiaocheng,Xiao Yi,Liang Xinyu,Zhang Guoli,Jia Xiaoxia,Yang Zhewei,Pan Yuede
Nickel disulfide (NiS 2 ) is a promising electrochemical storage material for varied charge carrier ions. However, previous preparation approaches for NiS 2 -based materials have been haunted by the low utilization efficiency of the sulfur atoms in the precursor and the detrimental byproduct of SO 2 . Inspired by the unique crystal structure of NiS 2 , composed of Ni 2+ cations and S 2 2− anions, herein, we develop an environmentally friendly synthesis method for crystalline NiS 2 with 100% utilization efficiency of precursor sulfur atoms through the precipitation reaction between Ni 2+ and S 2 2− , which can happen at varied temperatures and in different solvents. Furthermore, a NiS 2 /S composite is in situ formed by the co-precipitation reaction between Ni 2+ and S 8 2− , which can also occur at varied temperatures and in different solvents. As demonstration, both the NiS 2 and NiS 2 /S have been applied for the electrochemical storage of nonaqueous Na + ions and aqueous Cu 2+ ions. Owing to the in situ formed elemental sulfur with higher theoretical capacity and the considerable conductivity provided by the framework of NiS 2 in the NiS 2 /S composite, it exhibits superior electrochemical performance compared to NiS 2 in terms of capacity, rate, and cycling stability. The polysulfide anions produced in the process of nonaqueous sodium ion storage enhance the electrochemical kinetics, and the sulfur can be converted into Cu 2 S through the intermediate of CuS in the process of aqueous copper ion storage. The sodium ion storage capacity of NiS 2 /S is retained at 578.5 mAh g −1 after 375 cycles at 2.0 A g −1 , and its reversible copper ion storage can sustain a long life of 1500 cycles at 1.0 A g −1 . Our work paves the way towards liquid-state inorganic synthesis of metal sulfides composed of metal cations and disulfide anions.
研究领域:
材料科学
·
环境科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Mingxing Liang,Mengyao He,Yifan Ren,Ningning Liu,Jingjing Lei,Jun Cui,Zhuojun Jiang,Fei Yu,Jie Ma
Compositing carbon with Faradaic materials is a facile, efficacious method to boost electrochemically seizing sodium ions, yet it suffers from sluggish interfacial charge transfer due to high contact resistance. Herein, we proposed a carbon quantum dots (CQDs)-modulated strategy to enhance electrical charge transfer between nitrogen-doped tubular-like carbon (NTLC) and cobalt molybdate (CMO). The CQDs also serve as nucleation growth sites, allowing CMO to be anchored on the surface of NTLC, which contributes to the formation of the CQDs-bridged heterogeneous interface. Intriguingly, the capacitive deionization system equipped with CMO/CQDs/NTLC as the cathode and activated carbon as the anode displays a specific adsorption capacity of 61.5 mgNaCl gelectrodes–1 (corresponding to ∼52.8 mg-Na+ gcathode–1) in a 1000 mg L–1 synthetic NaCl solution, which is about 2.3 times higher than that of CMO/NTLC. Further advanced electrochemical investigations unveil that the introduction of CQDs can lower the activation energies of ion transport and charge transfer processes, which kinetically facilitates the generation of abundant charges that are bound for sodium-ion capture. This work provides a powerful strategy to design carbon-Faradaic composites for highly efficient electrochemical ion storage.
研究领域:
电化学
·
材料科学
·
纳米技术
·
能量存储
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Shiyuan Xu,Youpeng Wang,Qiming Li,Jiawen Yan,Hao Huang,Caicai Zhang,Xiaoyu Zhang,Fuyi Jiang,Yanli Zhou
Herein, the high-capacity and amorphous MoS 3 has been employed to decorate the hollow Co 9 S 8 nano-spheres to fabricate the Co 9 S 8 /MoS 3 composites by a three-step synthesis. The chain-like and amorphous MoS 3 can provide a high capacity of 894 mAh g −1 and generate abundant active sites to boost the sodium storage properties of Co 9 S 8 based electrode. The heterogeneous interface between Co 9 S 8 and MoS 3 is conducive to the promotion of charge transfer and Na + diffusion kinetics. Thus, the Co 9 S 8 /MoS 3 as the novel anode materials exerts more outstanding sodium storage properties than pure Co 9 S 8 . At a given current density of 0.5 A g −1 , the Co 9 S 8 /MoS 3 delivers a desired reversible capacity of 621 mAh g −1 for 90 cycles. Even at 2 A g −1 , the Co 9 S 8 /MoS 3 exhibits a stable cyclic performance, the charge specific capacity is about 518 mAh g −1 for 500 cycles. At a high rate of 5 A g −1 , a high capacity of 486 mAh g −1 can be achieved, which is obviously higher than that of pure Co 9 S 8 . The remarkable sodium storage properties of Co 9 S 8 /MoS 3 are mainly resulted from the cooperate effects of amorphous MoS 3 and hollow Co 9 S 8 nano-spheres, which demonstrate the promising application of Co 9 S 8 /MoS 3 in future sodium storage devices.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Wenhui Zhu,Ali Reza Kamali
Metastable monoclinic molybdenum trioxide (β-MoO 3 ) combined with perfect hexagonally-shaped MoS 2 and graphene nanosheets are fabricated by facile mechanochemical-molten salt treatment of irregularly-shaped molybdenum disulfide (MoS 2 ) and graphite in air. This hybrid nanostructure exhibits an excellent Li-ion storage performance, outperforming the nanocomposites made of conventional orthorhombic α-MoO 3 . To this end, ball-milled MoS 2 and graphite are treated in the presence of sodium chloride (NaCl) at 900–1200 °C, leading to the preparation of MoS 2 /MoO x @graphene (MSO@G) nanocomposites in an easily scalable and affordable way. The formation of β-MoO 3 is realized at 1100 °C (MSO@G-1100), outperforming the electrochemical performances of other samples and the initial MoS 2 . Moreover, the influence of binder on the electrochemical performance of MSO@G-1100 is studied, based on which polystyrene acrylic-acrylate (SAE) is found to provide a considerably low charge transfer resistance (27.59 Ω), outperforming conventional binders. The electrode exhibits a reversible Li-ion storage capacity of 878 mAh g −1 after 245 cycles at the current density of 100 mA g −1 . The capacitive contribution to the total Li-ion energy storage performance of MSO@G-1100/SAE is found to be significant with the value of around 62% at the potential scan rate of 0.3 mV s −1 . This article report on the facile, clean and sustainable preparation of β-MoO 3 based nanocomposites with remarkable electrochemical performance.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2021
·
IF 9.594
Na Yang,Rong Shao,Zhengping Zhang,Meiling Dou,Jin Niu,Feng Wang
Gelatin, a natural macromolecular substance formed by the hydrolysis of collagen, offers the advantages of abundant resources and low cost. It is a good precursor for the synthesis of N, O-doped carbon materials. Although some gelatin-derived carbon materials have been used for electrochemical energy storage , there have been few studies for the mechanism of gelatin carbonization . In addition, the influence of heteroatoms and defects on the K-ion storage performance remains unclear. In this work, in situ and ex situ characterization methods have been used to study the mechanism of gelatin carbonization. The pathways leading to formation of the carbon framework, heteroatom doping and defect generation in gelatin-based carbons during the pyrolysis process have been clearly identified. Moreover, by means of DFT calculations and experimental measurements, it has been confirmed that heteroatoms and defects both play important roles in improving the storage performance of potassium ions. By virtue of its abundance of both heteroatoms and defects, our optimized anode shows better electrochemical performance than graphite anodes. This study not only clarifies our understanding of carbonization mechanism and mechanism of K-ion storage in carbon materials, but also provides pathways for the synthesis and applications of new carbon-based anode materials for alkali-ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）