Materials Today Communications
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2022
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IF 3.662
Yuanbo Tan,Mingjie Yi,Zhenye Zhu,Xueting Zhang,Ke Qin,Jiaheng Zhang,Zhu Rongshu
Despiting the technological promise and environmental friendliness of sodium-ion batteries (SIBs), relatively large sizes of Na-ions and moderate oxidation-reduction response slows down their wider-spread industrial implementation. To overcome this obstacle, we developed carbon-coated MoSe 2 /MXene heterostructures , in which MXene was covered on the MoSe 2 particles and the loose carbon linked all the coated particles while providing porosity. The density-functional theory was used to understand the electronic structure of the carbon-coated MoSe 2 /MXene (MoSe 2 /Mo 2 CT x /C) and the mechanism of exchanging charge between MoSe 2 and MXene. MoSe 2 /Mo 2 CT x /C as active anode material showed exceptional stability even after 2200 cycles in SIBs. Specifically, the capacities and retention rates observed for the batteries containing MoSe 2 /Mo 2 CT x /C and cycled at 0.5, 1, and 2 A g −1 rates were equal to 652.2, 484.4, and 238.4 mAh g −1 and 102.5%, 103.9%, and 86.3%, respectively. Thus, carbon-coated MoSe 2 /MXene can be utilized as active SIB anode materials.
研究领域:
材料科学
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能源存储技术
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理论计算
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产品关联
DOI
高影响因子
LUMINESCENCE
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2015
·Vol. 31
·期 2
·388-393
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IF 1.518
Renping Cao,Kangbin Chen,Shenhua Jiang,Zhiyang Luo,Xiaoguang Yu,Pan Liu
A series of SrMoO 4 :Sm 3+ ,Tb 3+ ,Na + phosphors was synthesized using a high-temperature solid-state reaction method in air. On excitation at 290 nm, SrMoO 4 :Sm 3+ ,Tb 3+ phosphor emitted light that varied systematically from green to reddish-orange on changing the Sm 3+ and Tb 3+ ion concentrations. The emission intensities of SrMoO 4 :Sm 3+ and SrMoO 4 :Sm 3+ ,Tb 3+ phosphors were increased two to four times due to charge compensation when Na + was added as a charge compensator. The luminescence mechanism and energy transfer could be explained using energy-level diagrams of the MoO 4 2– group, Sm 3+ and Tb 3+ ions. SrMoO 4 :Sm 3+ ,Tb 3+ ,Na + could be used as reddish-orange phosphor in white light-emitting diodes (LEDs) based on an ~ 405 nm near-UV LED chip. This research is helpful in adjusting and improving the luminescence properties of other phosphors. Copyright © 2015 John Wiley & Sons, Ltd.
研究领域:
材料科学
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光学
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DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
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2021
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IF 9.127
Mingming Xie,Xiaobo Zhu,Danqing Li,Zhizhao Xu,Yingjia Huang,Huanyi Zha,Mei Ding,Chuankun Jia
Along with the surging demand for rechargeable alkali-ion (Li + , Na + , or K + ) batteries , cost and availability of the battery materials become critical. In this paper, we report the use of spent asphalt , which is widely available and even poses environmental risks, to produce a high-performing universal Li/Na/K-ion host material. Taking advantage of a nano-Fe 2 O 3 template, the spent asphalt is converted into mesoporous carbon with an interconnected three-dimensional porous structure , high surface area, and numerous crystal defects . As an anode material for Li-ion batteries, the mesoporous carbon exhibits a reversible capability of 674.2 mA h g −1 at 0.2 A g −1 as well as excellent rate and cycling performance (258.7 mA h g −1 at 1.0 A g −1 after 1000 cycles) owing to the shortened diffusion path of ion and easier penetration of electrolytes. The carbon anode also delivers superior reversible capacities and cycling stability in Na-ion and K-ion batteries. With the potential to simultaneously tackle energy and environmental problems, the spent asphalt-derived mesoporous carbon is promising for large-scale applications.
研究领域:
材料科学
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能源存储
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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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
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电化学
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能源存储
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产品关联
DOI
高影响因子
ACS Nano
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2020
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IF 14.588
Shu Lu,Jun Jiang,Hai Yang,Ying-Jie Zhang,Dan-Ni Pei,Jie-Jie Chen,Yan Yu
Rechargeable batteries are promising platforms for sustainable development of energy conversion and storage technologies. Highly efficient multifunctional electrodes based on bimetallic sulfides for rechargeable batteries are extremely desirable but still challenging to tailor with controllable phase and structure. Here, we report a colloidal strategy to fabricate FeCo-based bimetallic sulfides on reduced graphene oxide (rGO), which are expected to display highly efficient oxygen electrocatalysis and sodium storage performances. Specifically, as-screened FeCo8S8 nanosheets (NSs) on rGO originating from suitable tailoring of the Co9S8 matrix with Fe at the atomic level exhibited a very low potential difference (0.77 V) at 10 mA cm–2 and negligible voltage loss after 200 cycles as an air electrode for Zn–air batteries. For Na–ion batteries, FeCo8S8 NS/rGO demonstrated a superior high-rate capability (188 mAh g–1 at 20 A g–1) with long-term cycling stability. The bifunctional electrocatalytic property and sodium storage performance are attributed to not only the synergistic effect of Fe/Co but also the optimized catalytic activity and ion transport ability by the in situ rGO hybrid. This work demonstrates the potential applications of FeCo-based bimetallic sulfides as efficient electrode materials for both rechargeable Zn–air and Na–ion batteries.
研究领域:
材料科学
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能源技术
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产品关联
DOI
PubMed
高影响因子
SusMat
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2022
·Vol. 2
·期 6
·720-730
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IF 0
Zuo Jinghan,Liu Zeyu,Jiang Huaning,Chen Qian,Yang Zhilin,Gu Xiaokang,Jiao Yuying,Gong Yongji
It is crucial to enhance the rate capability of the titanium-based materials for fulfilling their promising potential as the anode materials of sodium-ion batteries (SIBs). Herein, Mn-doped sodium titanate (Mn-NTO) nanowires with homogeneously distributed ultrathin carbon nanosheets (Mn-NTO@C) are synthesized by a one-step salt-template-assisted method, showing much-enhanced power density. The as-prepared Mn-NTO@C demonstrates the realization of hybrid energy storage, which reconciles the diffusion-controlled behavior with the pseudocapacitive-controlled behavior. It has been revealed that the Mn heteroatoms can raise the proportion of Na 2 Ti 3 O 7 phase with the expanded crystal lattice, facilitating the diffusion-controlled insertion/extraction process of sodium ions. Meanwhile, the hybrid morphology of Mn-NTO nanowires and carbon nanosheets provides a promoted structure stability. As a result, the assembled Na||Mn-NTO@C half-cells work well at an extreme current density of 24 A g −1 for 10 000 cycles with a capacity retention of 95.2%. Moreover, the Mn-NTO@C||Na 3 V 2 (PO 4 ) 3 (NVP) full cells exhibit an attenuation of only 0.0015% per cycle at 20 A g −1 for over 10 000 cycles, and the energy density and power density of the full cells reach an ultrahigh level of 262 Wh kg −1 and 16.3 kW kg −1 , respectively.
研究领域:
材料科学
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电化学
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能源存储
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产品关联
DOI
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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IF 9.965
Hanhao Liu,Dan Li,Honglang Liu,Xu Wang,Yaoxin Lu,Chao Wang,Li Guo
Cobalt selenide , as a star material in battery industry, has attracted much attention. However, when it is applied solely in sodium ion batteries , it will cause large volume expansion and material agglomeration, which will seriously affect the overall performance of batteries. In this work, we use ice bath impregnation to combine CoSe 2 nanoparticles with porous nitrogen-doped carbon networks (NC) as advanced anodes for ultra-long cycle life sodium ion batteries (SIBs). CoSe 2 nanoparticles are evenly attached to NC with strong interfacial contacts in CoSe 2 @NC. The strong contact of CoSe 2 on the porous carbon network, along with the carbon network's unique network cross-linking structure, results in rapid electron transfer and Na ion diffusion kinetics of CoSe 2 @NC, resulting in superior electrochemical performance . Besides, we have synthesized CoSe 2 @NC with different loading by changing Co 2+ concentration. The results show that CoSe 2 @NC anode thus provides a high reversible capacity of 406 mAh/g. In addition, at high current 5 A/g, it can keep a reversible capacity of 300 mAh/g after 4500 cycles with an average capacity loss of less than 0.01 % per cycle. The excellent anchoring structure enables it to form stable solid electrolyte film (SEI) and reduce the amount of dead sodium in the first charge–discharge process, showing high Initial Coulombic Efficiency (ICE) (89.2 %). Finally, CoSe 2 @NC and Na 3 V 2 (PO 4 ) 3 (NVP) are assembled into a full cell and the results shows an ultra-long cycle stability at 0.1 A/g. This strategy will facilitate the application of transition metal selenides in next-generation energy storage systems.
研究领域:
材料科学
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能源存储
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产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
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2022
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IF 5.436
Ziyan Lv,Rukang Li
Two new compounds K3TaP2O9 and Na3TaP2O9 were obtained by spontaneous crystallization with KH2PO4 and K2HPO4 or NaH2PO4 and Na2HPO4 as fluxes, respectively. K3TaP2O9 belongs to the P21/m space group of the monoclinic system, with cell parameters of a = 9.8912(7) Å, b = 7.1861(5) Å, c = 13.6457(9) Å, β = 94.047(2)°, and Z = 4. In contrast, Na3TaP2O9 pertains to the P212121 space group of the orthorhombic system, with cell parameters of a = 7.1241(7) Å, b = 9.3071(10) Å, c = 12.3752(13) Å, and Z = 4. Both of the structures feature the existence of the zigzag (TaP2O9)∞ chains with the −(O4Ta)–O–(TaO4)– connection. Also, two compounds have high transparency of about 90% in the 400–2500 nm range. Theoretical calculations and powder second-harmonic generation test show that the compound Na3TaP2O9 has a large band gap of 5.5 eV, a moderate powder second-harmonic generation response of 0.6 × KDP, and a large birefringence of 0.11.
研究领域:
材料科学
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晶体学
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产品关联
DOI
PubMed
高影响因子
Catalysts
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2023
·Vol. 13
·期 3
·552
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IF 3.9
Bingxin Guo,Chengfei Zhao,Yingshuang Zhou,Junjie Guo,Zhongzhe Wei,Jing Wang
Alkali metals, as ideal electron donors, can effectively regulate the valence state distribution of the host metals. Nevertheless, no studies have reported the application of alkali metal promoters in the hydrogen evolution reaction (HER). Here, we designed an efficient and wide pH-universal hydrogen evolution catalyst that utilizes alkali metal to control the valence, size, and dispersion of Ru NPs. The experimental results reveal that the alkali metal additives contribute to the dispersion and stabilization of metallic Ru. More importantly, the interaction between Na and Ru regulates the distribution of Ru valence states and helps to form more active components of Ru0. Additionally, NaCl functioned as an in situ template to assist the construction of a porous carbon skeleton promotes mass transfer and exposes more active sites, further promoting the synergistic effect of Ru and Na. As a result, the optimal Ru0.3/C−800 delivers high efficiency for HER with an overpotential as low as 29 mV in 1.0 M KOH and 83 mV in 0.5 M H2SO4under 10 mA cm−2. Particularly, the catalytic performance of Ru0.3/C−800 even outbalanced that of commercial Pt/C in an alkaline medium. This rational construction strategy opens up new avenues for obtaining superior pH-universal electrocatalysts.Keywords:alkali metal;Ru based;hydrogen evolution reaction;wide-range pH;promotional effect
研究领域:
化学
·
材料科学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2023
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IF 6.2
Xinqin Lu,Weijie Chen,Shan Tang,Jingcai Xu,Yunxiong Zeng,Xinqing Wang,Xiaoling Peng,Jing Li,Bo Hong
This study investigated the effects of Na + substitution on the microstructure and magnetocaloric properties of La 0.67 Ca 0.33−x Na x MnO 3 (x = 0, 0.05, 0.10, 0.15, 0.20) porous nanospheres synthesized by the solvothermal method. The structural analysis showed that Na + substitution increased the unit cell volume and distorted the lattice structure of La 0.67 Ca 0.33−x Na x MnO 3 porous nanospheres. Na + doping also reduced the diameter uniformity of the porous nanospheres and caused them to relax and disintegrate. The magnetocaloric measurements revealed that Na + doping increased the Curie temperature values. The La 0.67 Ca 0.23 Na 0.1 MnO 3 composition exhibited a maximum magnetic entropy change of 3.57 J/kg.K, while La 0.67 Ca 0.18 Na 0.15 MnO 3 achieved the largest relative cooling power of 308.18 J/kg under an applied field H = 5 T. The critical parameters of the La 0.67 Ca 0.33−x Na x MnO 3 porous nanospheres were examined using the modified Arrott plot, Kouvel-Fisher method and critical isotherm, indicating significant changes in critical parameters due to Na + doping. The results suggested that Na + -substituted La 0.67 Ca 0.33−x Na x MnO 3 porous nanospheres could be promising candidates for magnetic refrigeration near room temperature.
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产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Yuxuan Wu,Yinda Li,Yunhao Lu,Jicheng Jiang,Aijun Zhou,Bo Xu,Xiongwen Xu,Jian Tu,Bin Pan,Xinbing Zhao,Jian Xie
Among some practical O3-type layered oxide cathodes, NaNi 1/3 Fe 1/3 Mn 1/3 O 2 (NFM) features a high specific capacity and moderate cyclability. However, sluggish Na + transfer kinetics, low structural stability, and rapid capacity loss during long-term cycling, are still posing a challenge to commercial applications of this material. In this work, we propose a Mg and Cu co-doped O3-type NaMg 0.02 Cu 0.02 Ni 0.33 Fe 0.27 Mn 0.36 O 2 (MC-NFM) with a stable structure and good cycling stability. It was found that the Mn O bonds in MC-NFM are obviously reinforced by synergistic doping with small amounts of Mg and Cu, leading to enhanced structural robustness, decreased Na + migration barrier, and delayed O3-P3 phase transition. As a result, longer cycle life and enhanced rate performance are achieved. MC-NFM can yield a specific capacity of 142.1 mAh g −1 at 0.1C and 116.0 mAh g −1 at 5C, and maintain 83.6 % of its initial capacity after 400 cycles at 1C. This work provides a promising design of O3-type cathode for sodium-ion batteries.
研究领域:
材料科学
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电化学
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能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
·
2024
·
IF 4.8
Tongmei Shi,Jieling Lin,Shiyun Liang,Yu Song,Xin Zhao,Mengjie Xiao,Huihui Ti
A B S T R A C T Headings ethnopharmacological relevance Sangbaipi Decoction (SBPD) is an effective treatment for lung diseases caused by phlegm-heat obstruction according to Jingyue Quanshu , and soothes panting by purging the lung meridian. It is composed of anti-pyretic herbs (e.g., Scutellaria baicalensis Georgi and Coptis chinensis Franch.) and antitussive herbs (e.g., Cortex Mori and Armeniacae Semen Amarum ). Therefore, we hypothesized that SBPD has therapeutic effects on lung injury caused by influenza virus. Aim of the study This study aimed to explore anti-influenza activity, active components, and mechanisms of SBPD. Materials and methods The anti-influenza activities of SBPD were determined in 48 h drug-treated MDCK cell model using CPE and plaque reduction assays, and 24 h drug-treated A549 cells using qRT-PCR. The in vivo efficacy of SBPD (1.0g/kg/day and 0.5g/kg/day) was evaluated in PR8 infected BALB/c mice. The chemical component was assessed through HPLC-Q-TOF MS/MS analysis. Network pharmacology was built via TCMSP, GeneCards, DisgeNet, OMIM, DrugBank databases, and Cytoscape software. Additionally, TOA, HI and NAI assays were employed to investigate impact on the virus replication cycle with different concentrations of SBPD (2.5 mg/mL, 1.25 mg/mL, or 0.625 mg/mL). Results In MDCK infected with viruses A/PR/8/34, A/Hong Kong/1/68, or A/California/4/2009, the IC 50 values of SBPD were 0.80 mg/mL, 1.20 mg/mL, and 1.25 mg/mL. In A549 cells, SBPD treatment reduced cytokine expression (e.g., TNF-α, IL-6, IL-1β) ( p < 0.05). In PR8 infected BALB/c mice, SBPD improved the survival rate of infected mice, reduced lung index ( p < 0.05), protected lung tissue from pathological damage, and regulated cytokine overexpression ( p < 0.05). 29 components of SBPD were identified in SBPD treated mouse serum including some phytochemicals targeting influenza proteins. HI and NAI assays suggested the potential antiviral mechanism of SBPD through inhibition of HA and NA. Conclusion This study is the first to demonstrate the anti-influenza and the anti-inflammatory effects of SBPD in vitro and in vivo. Its major anti-influenza phytochemicals were explored and its inhibitory effects on HA and NA protein were proved. It provides more options for anti-influenza drug discovery.
研究领域:
药理学
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病毒学
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中医
·
免疫学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）