JOURNAL OF POWER SOURCES
·
2021
·
IF 9.127
Bingtian Zhao,Siliang Wang,Qitao Yu,Qiang Wang,Min Wang,Tong Ni,Limin Ruan,Wei Zeng
The requirement for rechargeable microbatteries (MBs) continues to increase due to the rapidly development of wearable and integrated electronics. However, the ever-reported mainstream MBs, such as lithium ion MBs, have intrinsic drawbacks of security threats and environmental hazards, and are not suitable as an energy supply component for wearable electronics. Here, a safe and environmentally friendly zinc ion microbattery (ZIMB) based on MXene-TiS 2 (de)intercalation anode, multi-walled carbon nanotubes-vanadium dioxide (B) (MWCNTs-VO 2 (B)) cathode, zinc sulfate-polyacrylamide (ZnSO 4 -PAM) hydrogel electrolyte and self-healable polyurethane (PU) protective shell is exploited. The ZIMB exhibit satisfactory electrochemical performance with a capacity of 40.8 μAh cm -2 , maximum power density of 32.5 μWh cm -2 and maximum energy density of 1.2 mW cm -2 . In addition, the ZIMB also exhibits the excellent flexibility, thermostability and self-healability, i.e. , no significant attenuation in capacity can be observed when the ZIMB is placed on the specific conditions, such as the high bending angle of 150°, high temperature of 100 °C, and multiple damage and repair cycles. This study provides a feasible strategy to develop advanced high reliable and stable micro energy storage devices for wearable and integrated electronics.
研究领域:
材料科学
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能源存储
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Zhen Chen,Yan Wang,Zebing Ning,Qi Huang,Jia Zhou,Faquan Yu
Conjugated microporous polymers (CMPs) rank among the most promising materials for sustainable lithium-ion batteries (LIBs) in terms of their tunable chemical structures and designable electrochemical performance. Herein, a CMP of poly(anthraquinone-co-hexaazatriphenylene) (PAQ-HATN) was synthesized by combining anthraquinone (AQ) with a highly active hexaazatriphenylene (HATN) group, which is endowed with abundant redox-active groups, high specific surface area, and insolubility in an electrolyte. Further, to address the existing problems of PAQ-HATN, including poor rate performance, low conductivity, and structural instability, the strategy through the integration of an organic polymer (PAQ-HATN) with inorganic material (TiS2) was used. The prepared composite as a cathode material (PAQ-HATN@TiS2) achieves improved conductivity and effective utilization of the redox activity sites. As expected, PAQ-HATN@TiS2 exhibits high initial capacity (347.6 mA h g–1 at 25 mA g–1), good rate performance (114.8 mA h g–1 at 1000 mA g–1), and long cycle stability (157.4 mA h g–1 at 800 mA g–1 and 1000th cycle), indicating the PAQ-HATN@TiS2 compound is a potential cathode for energy storage.
研究领域:
材料科学
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能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Boyuan Di,Xinlu Li,Xiaokun Wen,Wenyu Lei,Xinyue Xu,Wenchao Kong,Haixin Chang,Jia Zhang,Wenfeng Zhang
High-performance p-type atomically thin transistors are fundamental components in CMOS-based digital logic circuits for beyond-silicon electronics. Compared with the recent breakthrough in high-quality semimetal contacts approaching the quantum limit on n-type atomically thin channel transistors, achieving high-performance p-type analogues with high-quality contacts remains challenging, which was mainly hindered by the lack of proper high-work-function metallic electrodes with Fermi level unpinning capacity. Herein, we demonstrate that semimetal TiS2 electrodes prepared with a damage-free transfer process can be a feasible option for p-type atomically thin MoTe2 transistors. Owing to its intrinsic large work function (∼5.3 eV) and high-quality contacts with negligible Schottky barrier at the TiS2/MoTe2 interface, the scaled p-type bilayer MoTe2 transistor with 500 nm channel length and the monolayer transistor with 800 nm channel length exhibit a high on-state current (Ion) of 100 μA/μm with the on/off ratio (Ion/off) over 106 and an Ion of 68 μA/μm with the Ion/off ratio over 107, respectively. Such a demonstration will enable monolithic atomically thin MoTe2-based beyond-silicon electronics via the common CMOS technology.
研究领域:
材料科学
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电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Chemistry
·
2023
·
IF 7.3
C.-H. Sun,X.-Q. Li,T.-M. Zhu,H.-Y. Yu,Y.-M. Liang,Y.-H. Sun,J.-M. Nan
SnS is a promising anode material for sodium-ion batteries (SIBs) due to its high theoretical specific capacity, but the poor intrinsic conductivity, bulk expansion and shuttle effects brought by polysulfides seriously limit its practical use. Here, soft/rigid SnS&TiS 2 compounds with carbon nanotubes (ST@CNTs) is designed to overcome the shortcomings. The rigid TiS 2 , as the strong backbone of SnS&TiS 2 , relieves the expansion stress caused by SnS after sodiation, together with CNTs improve the materials conductivity. TiS 2 generates many sulfur defects under the synergistic effect of SnS, which can regulate the sodium-ion embedding sites to stabilize the compound structure and decrease the sodium-ion diffusion energy barrier. Moreover, rigid TiS 2 can adsorb polysulfides induced by SnS, thus suppresses the shuttle effect and improves the cycling and rate performances. Fortunately, the above conclusions are confirmed by the DFT calculations. The ST@CNTs provide a specific capacity of 550 mAh/g at 1.0 A/g after 300 cycles, and a high-rate capability of 443 mAh/g at 2.0 A/g. This soft/rigid misfit strategy combines the advantages of high modulus of rigid layers and high sodium-ion storage capacity of soft layers, which gives an idea for the development of new anode candidates for SIBs.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2020
·Vol. 12
·期 48
·24368-24375
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IF 6.895
Guanfusheng Yan,Chuan Xu,Zhaohui Meng,Mingzhen Hou,Wen Yan,Naibo Lin,Linfei Lai,Da Zhan
The rapid capacity loss caused by the shuttling effect of polysulfides is one of the great challenges of Li–S batteries. In this work, we adopted a simple solid-phase sintering method to synthesize titanium disulfide (TiS2) and further demonstrated it as a superior modifier of separators for Li–S batteries. Two commonly adopted modification processes of separators, including vacuum filtration (VF) and slurry casting (SC) have been used to prepare TiS2/Celgard separators. TiS2-VF/Celgard can better restrain the polysulfide shuttling effect compared with TiS2-SC/Celgard. A TiS2-VF/Celgard-based Li–S battery has a reversible capacity of 771.6 mA h g−1, with a capacity retention of 645.6 mA h g−1 after 500 cycles at 2.0 C, corresponding to a capacity fading rate of ∼0.033% per cycle. This study has shown the potential of TiS2 as a multifunctional modifier of separators for high performance and long cycle life Li–S batteries.
研究领域:
材料科学
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电化学
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电池技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Photonics Research
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2018
·Vol. 6
·期 10
·C44
·
IF 5.242
X. Zhu,S. Chen,M. Zhang,L. Chen,Q. Wu,J. Zhao,Q. Jiang,Z. Zheng,H. Zhang
We fabricate titanium disulfide (TiS2) using a liquid exfoliation method and subsequently a TiS2-based device by optically depositing the TiS2 material onto the microfiber. This device exhibits a strong nonlinear saturable absorption property with an optical modulation depth of 8.3% at 1560 nm. With the implementation of this all-fiber TiS2-based saturable absorber, we demonstrate that both mode-locking and Q-switching operation can be obtained in a turn-key all-fiber erbium-doped laser cavity. Our findings constitute the first example, to the best of our knowledge, of a TiS2-based saturable absorber for ultrashort pulse generation and highlight the great potential of such devices in two-dimensional nanomaterials-related photonics.
研究领域:
光子学
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纳米材料
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激光物理
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光学工程
✓ 已验证
DOI
高影响因子
CHEMICAL PAPERS
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2019
·Vol. 73
·期 10
·2583-2589
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IF 1.246
Zhao Li-Ping,Liu Gang,Zhang Peng,Sun Li-Qun,Cong Li-Na,Lu Wei,Sun Qi-Qi,Xie Hai-Ming,Wang Hong-Yu
Titanium disulfide (TiS 2 ) was adopted as a negative electrode material for the asymmetric sodium-ion supercapattery of TiS 2 /activated carbon using Na + -based organic electrolytes. This type of supercapattery possesses a working voltage as high as 3 V. The physical properties of the negative electrode were characterized by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The electrochemical performance tests revealed that the supercapattery had a relatively high rate performance and good cycle stability, displaying 77% capacity retention after 1000 cycles at a current density of 0.2 A g −1 .
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Kequn Sun,Yinghui Dong,Lulu Yao,Mausumi Mahapatra,Yufu Xu
In this investigation, the surface tribological behavior of YG8/TC4 contacts under microgel lubrication was explored, utilizing thermal- and pH-sensitive PNIPAM-co-PAA-(IF-MoS 2 /GO) composite microgels as lubricant additives. Through the application of a ball-on-disk reciprocating tribometer, the study demonstrated the outstanding lubrication capabilities of the composite microgels. The lubrication process involving PNIPAM-co-PAA-(IF-MoS 2 /GO) composite microgels initiated a tribo-chemical reaction, leading to the generation of a larger quantity of TiS 2 with exceptional lubricating properties on the friction surface compared to alternative lubrication conditions. The effective isolation of the friction pair by PNIPAM-co-PAA composite microgels contributed to the reduction in tribo-oxidation of the sliding surfaces , while the presence of IF-MoS 2 facilitated the formation of TiS 2 . Furthermore, the facile sliding property of GO nanosheets played a crucial role in achieving overall excellent lubrication performance. The synergistic effects arising from the components in PNIPAM-co-PAA-(IF-MoS 2 /GO) composite microgels introduce a novel and effective strategy for controlling the friction and wear of YG8/TC4 contacts.
研究领域:
材料科学
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表面工程学
✓ 已验证
产品关联
DOI
高影响因子
Journal of the American Chemical Society
·
2013
·
IF 10.677
Chenwen Lin,Xiaojiao Zhu,Jun Feng,Changzheng Wu,Shuanglin Hu,Jing Peng,Yuqiao Guo,Lele Peng,Jiyin Zhao,Jianliu Huang,Jinlong Yang,Yi Xie
As a conceptually new class of two-dimensional (2D) materials, the ultrathin nanosheets as inorganic graphene analogues (IGAs) play an increasingly vital role in the new-generation electronics. However, the relatively low electrical conductivity of inorganic ultrathin nanosheets in current stage significantly hampered their conducting electrode applications in constructing nanodevices. We developed the unprecedentedly high electrical conductivity in inorganic ultrathin nanosheets. The hydric titanium disulfide (HTS) ultrathin nanosheets, as a new IGAs, exhibit the exclusively high electrical conductivity of 6.76 × 104 S/m at room temperature, which is superior to indium tin oxide (1.9 × 104 S/m), recording the best value in the solution assembled 2D thin films of both graphene (5.5 × 104 S/m) and inorganic graphene analogues (5.0 × 102 S/m). The modified hydrogen on S–Ti–S layers contributes additional electrons to the TiS2 layered frameworks, rendering the controllable electrical conductivity as well as the electron concentrations. Together with synergic advantages of the excellent mechanical flexibility, high stability, and stamp-transferrable properties, the HTS thin films show promising capability for being the next generation conducting electrode material in the nanodevice fields.
研究领域:
材料科学
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电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2022
·
IF 24.319
Jing Wu,Wenda Zhong,Chenfan Yang,Wenli Xu,Rong Zhao,Hui Xiang,Qin Zhang,Xuanke Li,Nianjun Yang
Water electrolysis has been recognized as one of the most promising approaches to produce green hydrogen and eventually target carbon neutrality . Various cost-effective and light transition metal sulfides have been developed as the electrocatalysts to promote hydrogen evolution reaction (HER), one half-reaction of water electrolysis. Unfortunately, full use of their intrinsic electrocatalytic traits and exposed active sites is still challenging. Here, a nonstoichiometric titanium sulfide/nickel sulfide (TiS 2−x /NiS) hetero-catalyst is designed and constructed to induce a high-density of sulfur vacancies. As a HER electrocatalyst, it features the overpotentials of only 63 and 134 mV at a current density of 10 mA cm −2 in 1.0 M KOH and 0.5 M H 2 SO 4 , respectively, which is equipped with glorious durability even at high current densities (e.g., 100 mA cm −2 and 500 mA cm −2 ). Such outstanding performance partially stems from the sulfur vacancies induced by a nonstoichiometric effect, namely the intensified interfacial charge transfer nearby the TiS 2−x /NiS heterointerface. The existence of sulfur vacancies partially regulates the d -electronic structure of Ti and Ni active sites, ultimately bringing in reduced energy barrier of water dissociation as well as optimized adsorption free energy for H* intermediates. The strategy of employing both a nonstoichiometric effect and interface engineering of a metal sulfide catalyst paves a new way to design high-performance and cost-effective HER electrocatalyst in universal media.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2021
·
IF 9.127
Xiuqing Zhang,Shuai Tang,Xiang Li,Wei Guo,Yongzhu Fu
Sodium (Na) metal batteries are low-cost, high-capacity alternatives for lithium-ion batteries. However, the safety concerns brought by the metallic Na hinder the development of Na metal batteries. Herein, we in situ construct a gel polymer electrolyte (GPE) under mild condition for Na-TiS 2 battery to diminish the safety hazard. The room-temperature ionic conductivity of the GPE reaches 3.66 × 10 −4 S cm −1 . The transference number of Na + is 0.66 and the excellent stability with Na metal anode is achieved. The in situ formed GPE can minimize the side reactions between Na metal anode and the electrolyte, and simultaneously the lower fluidity can hinder the shuttle effect of pulverized TiS 2 cathode during cycling, significantly improving the cycling performance. The Na|Na symmetric cell shows stable cycling over 1300 h at 1.0 mA cm −2 . The Na|TiS 2 cell illustrates an ultralong cycle life of more than 6100 h at 50 mA g −1 with the reversible capacity of 371 mAh g −1 . The cell can also be cycled 1000 times with the reversible capacity of 321 mAh g −1 at 200 mA g −1 . We believe the work can inspire the development of the high-safety, low-cost, and long-cycle-life sodium batteries as energy storage systems .
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2024
·
IF 6.1
Guo-Guo Zhang,Pengtao Qiu,Jia-Xin Kang,Zhiwei Lu,An-Qi Zhu,Xiaohu Yu,Xuenian Chen
Solid-state potassium metal batteries have increasingly gained attention as promising alternatives in large-scale energy storage due to their safety and low cost. However, these batteries usually suffer from a lack of suitable K+ conducting solid electrolytes. Herein, a new KB11H14·2Me3NBH3 complex electrolyte with high ionic conductivity and relative stability against K metal is reported. The crystal structure was solved as a monoclinic P21/c lattice. Density functional theory (DFT) calculations confirm significantly enhanced K-ion diffusion in the structure. High K-ion conductivities of 2.63 × 10−6 S cm−1 at 25 °C and 3.25 × 10−4 S cm−1 at 75 °C are achieved, putting it among the leading K+ solid conductors. Moreover, it shows favorable interfacial stability against the K metal anode precoated with NH3B3H7. Batteries coupling the TiS2 cathode deliver long-term cycling stability. This work provides a new group of K-ion solid-state electrolytes for safe potassium metal batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 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）