JOURNAL OF POWER SOURCES
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2024
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IF 8.1
Zhengyi Lu,Changfei Liu,Enli Wang,Ruizhi Yang,Hongxun Yang,Chao Jin
Although composite polymer electrolytes (CPEs) are currently regarded as one of the most promising solid electrolyte systems closing to commercial application, some basic problems, including low conductivity at low temperature, serious interfacial compatibility with Li metal anode , inhibit the development of CPEs for solid state lithium batteries (SSLBs). Herein, a “polymer-in-ceramic” CPEs consisting of polyether sulfone (PESF), Li 6·75 La 3 Zr 1·75 Ta 0·25 O 12 (LLZTO) and bis(trifluoromethane) sulfonimide lithium salt (LiTFSI) is reported, and a two-step strategy is proposed to optimize its conductivity and interfacial compatibility with Li metal anode . Benefitting from both the continuous porous structure to provide additional Li + conducting pathways on internal porous interfaces and the typical heterogeneous bilayer structure to enhance compatibility with Li metal anode, the optimized CPEs delivers promising Li + conductivities in a wide operating temperature range (>2.0 × 10 −4 S cm −1 at −10 °C, >1.4 × 10 −3 S cm −1 at 60 °C), improved tolerance against Li dendrites and/or pulverization. Moreover, commercial LiFePO 4 cathode based SSLBs show acceptable discharge specific capacities of >160 mA h g −1 and excellent cycling stabilities of over 200 cycles at both room temperature and 60 °C at 0.2C.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Dong Yi,Jiawei Fu,Fenzhong Long,Jin Han,Fangui Meng,Xinmin Zhang
To improve the quality of white LED and develop plant growth lighting, considerable efforts have been devoted to investigating red phosphor. Eu 3+ -activated phosphors are well-known red-emitting components due to their 5 D 0 - 7 F 1,2 transitions in various applications. It is also found that its 5 D 0 - 7 F 4 transition in the range of far-red wavelengths has potential applications in the fields of daily and agricultural lighting. In this study, two kinds of Eu 3+ -doped layered perovskite La 2 Ti 2 O 7 and A 2 La 2 Ti 3 O 10 (A = Li, Na, K) phosphors were synthesized by the solid-state method. The crystal structure, absorption, excitation, and emission spectra of all the samples were investigated in detail. Dissimilar luminescent behaviors of the studied samples were observed. Due to the different crystal structure and chemical composition of the host matrix, each compound exhibits a different emission spectrum. Specifically, Eu 3+ occupies a lower symmetric La 3+ site in A 2 La 2 Ti 3 O 10 (A = Li, Na, K) phosphors, resulting in an intense 5 D 0 - 7 F 4 far-red emission, while in La 2 Ti 2 O 7 :Eu 3+ , Eu 3+ gives a weak 5 D 0 - 7 F 4 emission. To the best of our knowledge, this is the first report that Eu 3+ exhibits a strong 5 D 0 - 7 F 4 far-red emission in the titanate host lattices with perovskite structure. Besides, A 2 La 2 Ti 3 O 10 :Eu 3+ (A = Li, Na, K) phosphors achieve higher photoluminescence efficiency than La 2 Ti 2 O 7 :Eu 3+ . Among them, the internal quantum efficiency of the optimized Li 2 La 2 Ti 3 O 10 :1.2Eu 3+ is about 84.7 %, and it has a better thermal stability (80 % at 125 °C). Furthermore, good photoelectric performances of red/white-LEDs fabricated by utilizing the representative Li 2 La 2 Ti 3 O 10 :1.2Eu 3+ as red/far-red components indicate that it has potential applications in indoor/outdoor lighting and plant growth lighting. This study provides a feasible way for developing efficient Eu 3+ -activated far-red optical materials.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2019
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IF 4.084
Xu Huang,Xuezhang Xiao,Xuancheng Wang,Zhendong Yao,Jiahuan He,Xiulin Fan,Lixin Chen
Li–Mg–B–H reactive hydride composite (RHC) has attracted extensive attention over the past decades for its extremely high hydrogen storage capacity (11.5 wt%). But the sluggish desorption kinetics for the second step dehydrogenation reaction need to be further improved. Herein, short rod-like TMTiO 3 (TM = Co, Ni) bimetallic oxides , which contain two kinds of transition metal elements, were synthesized and introduced into Li–Mg–B–H RHC for the first time. The NiTiO 3 exhibits excellent catalytic effect on the hydrogen desorption kinetic performance of Li–Mg–B–H RHC, and the incubation period for the second step dehydrogenation reaction is eliminated completely by reducing the apparent activation energy for the generation of MgB 2 from 296 kJ/mol to 269 kJ/mol. The NiTiO 3 doped Li–Mg–B–H RHC can desorb about 9.0 wt% H 2 without obvious attenuation of kinetic performance in five cycles. Mechanism analyses reveal that the in-situ generated nano-sized MgNi 3 B 2 and TiB 2 species (∼5 nm) both meet the critical value ( < 10%) of the edge-to-edge matching model (5.77% for MgNi 3 B 2 and 2.22% for TiB 2 ), which play a significant role in supporting the nucleation of MgB 2 . Meanwhile, the extremely fine MgNi 3 B 2 and TiB 2 heterogeneous nucleation sites can inhibit the excessive growth for a single crystal nucleus of MgB 2 . The heterogeneous nucleation and grain refinement mechanisms caused by the novel bimetallic oxide could provide alternative insights into designing an in-situ generated nano-sized catalytic hydrogen storage system with enhanced kinetics and cyclic stability for hydrogen-fueled applications.
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高影响因子
NEW CARBON MATERIALS
·
2022
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IF 3.7
Yi-ming Zou,Chang-chun Sun,Shao-wen Li,Miao Bai,Yu-xuan Du,Min Zhang,Fei Xu,Yue Ma
A coaxial anode with a carbon fiber core encapsulated in nanocrystalline FeNiMnO 4 with a nitrogen-doped carbon sheath was prepared using carbon fiber cloth as the core, FeNiMnO 4 nanocrystallite arrays as the first coating layer and nitrogen-doped carbon derived from F127 (a kind of triblock copolymer)-resorcinol-melamine gel as the outer layer. After annealing at 600 °C it was used as the anode material of an all solid flexible lithium ion battery using LiFePO 4 as the cathode material and boron nitride modified polyethylene oxide as the electrolyte. The battery had a large areal capacity of ∼1.40 mAh cm −2 and satisfactory cycling stability under different bending and strain states. Annealing below 600 °C leads to incomplete carbonization of the nitrogen-doped carbon and thus a low electrical conductivity while above 600 °C aggregation of FeNiMnO 4 nanocrystallites and their detachment during cycling are observed under bending and strain.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
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IF 12.5
Jingjing Jiang,Shijian Zhou,Jing Ding,Jinhe Sun
3.25 mg g −1 capacity at ultrahigh Mg 2+ /Li + ratio of 474.6 and excellent cycling use. • AlLi-LDHs were confined in SBA-15 pores via solvent evaporation-induced strategy. • Si-O-Al/Li interface increases electron density, boosting electrostatic adsorption. • Hydration-shell sieving effect excludes Mg 2+ , Na + , K + for selective Li + adsorption. The sustainable extraction of lithium from salt lake brines featuring high Mg 2+ /Li + ratios poses a severe technical bottleneck that limits the high-efficiency utilization of global lithium resources. Herein, a novel pore-confined AlLi-LDHs/SBA-15 adsorbent (SEI-AL/SBA-15-B) is rationally constructed via a solvent evaporation-induced method to break this limitation, which directs the exclusive and uniform growth of AlLi-LDH nanosheets inside the ordered mesochannels of SBA-15 rather than on the external surface. This architecture delivers three synergistic effects: (i) physical confinement suppresses nanosheet agglomeration, maximizing accessible active sites; (ii) interfacial Si-O-Al/Li covalent bonds reconstruct the local electronic structure, lowering the DFT-calculated adsorption energy of Li + (H 2 O) 4 from −1.61 eV (pristine AlLi-LDHs) to −3.06 eV; and (iii) a hydration-shell sieving effect, governed by the interplay of geometric radius and dehydration energy, efficiently excludes competing Mg 2+ , Na + and K + . The optimized adsorbent achieves a Li + uptake of 10.52 mg g −1 within 1 h in 800 mg/L LiCl solution (equilibrium capacity 12.11 mg g −1 at 4 h). Impressively, a capacity of 3.25 mg g −1 is preserved at an ultrahigh Mg 2+ /Li + mass ratio (474.6), which surpasses most reported AlLi-LDHs adsorbents. Normalization to the active LDH mass shows that SEI-AL/SBA-15-B exhibits a 2.85-fold higher capacity than pristine AlLi-LDHs, proving that the enhanced performance originates from improved active-site utilization rather than higher LDH loading. The adsorbent also demonstrates excellent stability over eight adsorption–desorption cycles. This work establishes mesopore confinement engineering as a powerful platform to overcome the inherent limitations of layered double hydroxide adsorbents, enabling sustainable lithium extraction from high Mg 2+ /Li + ratio salt lake brines. AlLi-LDHs were confined within SBA-15 mesopores by solvent evaporation-induced method to form SEI-AL/SBA-15 composite adsorbent. The mesoporous confinement effect suppresses the agglomeration of AlLi-LDHs, reconstructs the Si-O-Al/Li interfacial electronic structure to enhance electrostatic adsorption and coordination bonding capability, and reinforces size sieving by blocking large-sized competing hydrated ions. These synergistic effects enable SEI-AL/SBA-15-B high lithium adsorption capacity and ultrahigh selectivity in brine. Download: Download high-res image (140KB) Download: Download full-size image
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高影响因子
GREEN CHEMISTRY
·
2023
·Vol. 25
·期 23
·10020-10032
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IF 9.8
Qiyuan Zheng,Li Zeng,Zuoying Cao,Shengxi Wu,Qinggang Li,Mingyu Wang,Wenjuan Guan,Guiqing Zhang
As the production of electric vehicles and lithium-ion batteries continues to rise, concerns over resource scarcity and supply shortages of critical metals, including Cu, Ni, Co, Mn, and Li, have become increasingly urgent. To address these concerns and promote environmental protection, there is a growing demand for the recycling of hazardous waste containing these critical metals as secondary resources. Therefore, this paper proposes a novel synergistic solvent extraction system of D2EHPA-NNPA, which fills a gap in the lack of a suitable extraction system for the hydrometallurgical industry of secondary resources containing Cu, Ni, Co, Mn, and Li. With the specific extraction sequence of D2EHPA-NNPA, a novel process has been designed and proposed for the stepwise extraction of Cu, Ni, Co, Mn, and Li from secondary resources, which significantly simplifies process flows while avoiding cross-contamination of the extractants and the production of industrial wastewater. Furthermore, the proposed “extraction-scrubbing-stripping” process has been investigated from both macroscopic and microscopic perspectives, demonstrating that the novel synergistic solvent extraction system of D2EHPA-NNPA is a viable option for industrial applications to promote a circular economy and achieve sustainability objectives.
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高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2020
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IF 5.647
Shuai Chen,Zixiang Li,Carolina Belver,Guilan Gao,Jie Guan,Yaoguang Guo,Hui Li,Jiao Ma,Jorge Bedia,Patryk Wójtowicz
Zero valent iron/carbon composites were successfully synthesized from commercial iron oxide and graphite (ZVI/C) and also by using graphite obtained from spent Li-ion batteries and iron oxide from mill scale (ZVI/C-X) as a new approach for the valorization of these waste. The composites were synthesized through carbothermic reactions and tested as catalysts for the degradation of ibuprofen from water by Fenton reaction . The optimal conditions for synthesizing ZVI/C composites were a temperature of 1000 °C maintained for 2 h. The structural, and textural features of ZVI/C with different ZVI mass ratios were characterized by different techniques. ZVI/C composites with higher ZVI mass ratios showed higher degradation rates for the removal of ibuprofen both in presence and absence of H 2 O 2 . Moreover, ZVI/C-X composite, obtained from industrial waste, showed activity even after four consecutive cycles of use with very low concentration of iron ions in solution after reaction (4.8 mg L −1 after 4 h), which supports the high stability and low Fe-lixiviation of ZVI/C-X composite. The results of this study prove the possibility of synthesizing composites using graphite from spent Li-ion batteries and iron oxide from mill scale, and their potential for the degradation of ibuprofen in water, with comparable activities to those obtained from commercial feedstocks .
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PubMed
高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 27
·16347-16355
·
IF 10.733
Zhangxin Chen,Ning Xu,Weijun Li,Ruiyang Zhao,Yujie Dong,Junlei Liu,Chang Su,Jianli Wang,Cheng Zhang
The common LiPF6 electrolyte in lithium batteries often contains trace water (∼10 ppm) and hydrofluoric acid (∼20 ppm). But the possible influence of this trace HF on the performance of Li–organic batteries with organic cathode materials is still not clear. In this paper, a novel N-heterocycle based conjugated microporous polymer PTPADTz based on the triphenylamine–bitriazine group was prepared. The polymer PTPADTz was found to possess a high surface area (∼657 m2 g−1) and an abundant microporous structure. Using PTPADTz as the cathode material in lithium batteries with the LiPF6 electrolyte, apart from the voltage platform of triphenylamine around 3.75 V, a new and unstable low voltage platform at ∼2 V was also observed, which did not correspond to the n-doping process of bitriazine groups according to electrochemistry results. Furthermore, it faded rapidly and disappeared in 20 cycles with an irreversible capacity loss. Such an uncommon phenomenon was not observed in the same lithium batteries with the LiClO4 electrolyte. UV-vis spectra and electrochemistry results showed that the PTPADTz film exhibited an obvious red-shift in the LiPF6 electrolyte similar to that in HCl solution and the HF/LiClO4 electrolyte, with the film color in both changing from yellow to a shade of red, which were not observed in the LiClO4 electrolyte. Thus the uncommon low voltage platform at ∼2 V in the LiPF6 electrolyte might be ascribed to the acid-doping effect of the trace HF in the electrolyte, which bonded with the electron pairs of nitrogen in triazine to increase its electron affinity and produce another new n-doping behavior. The open lithium battery experiments clearly demonstrated the in situ color change related to the doping and dedoping behavior during the whole charge/discharge process, further confirming that the acid-doping of the trace HF into the triazine group was the origin of the observed low voltage platform. Hence, this study may provide new insight into the influence of trace H+ in the electrolyte on the performance of Li–organic batteries.
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高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 25
·15444-15446
·
IF 10.733
Cheng-Long Yu,Hang Liu,Jie Song,Jing Yang,Huai-Bing Hui,Hao Tang,Dao-Yi Wang,Peng-Cheng Zhang,Xin-Meng Zhang
A reproduction and short discussion on the phase and evolution of Li3Fe2(HPO3)3Cl presented in the article entitled Li3Fe2(HPO3)3Cl: an electroactive iron phosphite as a new polyanionic cathode material for Li-ion battery (Hooman Yaghoobnejad Asl, et al., J. Mater. Chem. A, 2015, 3, 7488) are given. According to our reproduction, the major phase in the temperature range by Hooman Yaghoobnejad Asl, et al. is not Li3Fe2(HPO3)3Cl, but is Fe11(HPO3)8(OH)6 and the major impurity phase is not Li1.43[Fe4.43IIFe0.57III(HPO3)6]·1.5H2O as claimed by the authors. More detailed experimental parameters are suggested to be given.
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高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
·
2024
·
IF 4.8
Aining Yin,Yu Fu,Tingxin Wang,Honglin Li,Xiufang Wang,Xueke Ye,Peipei Dong,Wei Yao
Ethnopharmacological relevance FZLFR was derived from a classic traditional Chinese medicine recipe, the Shiquan-Dabu decoction. FZLFR is commonly used in clinical practice to address muscle loss and associated cancer cachexia. However, the mechanism of by which FZLFR acts in cancer cachexia remains unclear. Aim This study aimed to assess the effects and explore the potential mechanism of action of FZLFR in treating cancer cachexia. Methods Cancer cachexia was induced by inoculating Lewis lung carcinoma cells into the right flank of male C57BL/6 mice. The efficacy of FZLFR was evaluated by comparing changes in body weight, tumor mass, food intake, survival time, weight, and cross-sectional area of the gastrocnemius and anterior tibial muscles. Moreover, inflammatory cytokines, such as TNF-α and IL-6, were detected by ELISA. The chemical components of FZLFR were analyzed using ultra-performance liquid chromatography-coupled with time-of-flight mass spectrometry. Network pharmacology analysis was performed to screen the core targets and potential pathways involved in FZLFR treatment of cancer cachexia. Molecular docking was used to analyze the binding ability of the core targets and key compounds. The expression levels of core targets and targets correlated with skeletal muscle atrophy were also assessed using western blotting. Results FZLFR enhanced the food intake and survival rate of mice with cancer cachexia. It also alleviated tumor-induced body weight loss, tumor growth, and muscle fiber atrophy in these mice. Additionally, it improved the weight and cross-sectional area of the gastrocnemius and anterior tibial muscles. FZLFR down-regulated the serum levels of TNF-α and IL-6. UPLC-ESI-Q-TOF-MS analysis identified 184 compounds in FZLFR. Network pharmacology analysis predicted that TNF signaling pathway, ErbB signaling pathway and VEGF signaling pathway might be essential in FZLFR action. Molecular docking showed that kaempferol, upafolin, apigenin, and luteolin might play key roles in FZLFR treatment. Moreover, FZLFR decreased MAFBx1, MURF1, NF-κB, TWEAK, MAPK8, and EGFR expression levels. FZLFR enhanced the expression of VEGFA and ESR1, as demonstrated by western blotting. Conclusions FZLFR increased food intake and alleviated muscle atrophy in mice with cancer cachexia. The potential pharmacological mechanisms underlying its anticachexia effects include reducing inflammation, enhancing muscle vascular growth, inhibiting tumor angiogenesis, and modulating estrogen receptors.
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PubMed
高影响因子
Small
·
2024
·
IF 13
Ruoxuan Qi,Ming Yang,Tianle Zheng,Xingchen Liu,Yonggao Xia,Ya-Jun Cheng,Peter Müller-Buschbaum
The LiCoO 2 (LCO) cathode is foreseen for extensive commercial applications owing to its high specific capacity and stability. Therefore, there is considerable interest in further enhancing its specific capacity by increasing the charging voltage. However, single-crystal LCO suffers from a significant capacity degradation when charged to 4.5 V due to the irreversible phase transition and unstable structure. Herein, an ultra-small amount (0.5% wt. in the electrode) of multi-functional PIM-1 (a polymer with intrinsic microporosity) additive is utilized to prepare a kind of binder-free electrode. PIM-1 modulates the solvation structure of LiPF 6 due to its unique structure, which helps to form a stable, robust, and inorganic-rich cathod-eelectrolyte interphase (CEI) film on the surface of LCO at a high voltage of 4.5 V. This reduces the irreversible phase transition of LCO, thereby enhancing the cyclic stability and improving the rate performance, providing new perspectives for the electrodes fabrication and improving LCO-based high-energy-density cathodes.
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PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2017
·
IF 4.798
Dongmei Dai,Dongwei Yan,Bao Li,Kun Chang,Zhaorong Chang,Hongwei Tang,Yanping Li,Shaoxiong Zhou
Li-rich layered oxide is one of the most promising cathode materials for high-energy-density Li-ion batteries (LIBs). The composition, structure and morphology of precursors have significant influence on the electrochemical performance of the final cathode material. The capacity and initial coulombic efficiency of Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 can be simultaneously improved by sintering a nanoplate precursor with Li 2 CO 3 in our previous work. Herein, the morphology and the formation mechanism of such nanoplate are investigated through a designed orthogonal tests. The optimal concentration of transition metal ions, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) and polyvinyl pyrrolidone (PVP) are 0.1, 0.031 and 0.004 g mL −1 , respectively. The as-prepared Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 O 2 from optimal nanoplate demonstrate an improved discharge capacity (323.8 mAh g −1 at 20 mA g −1 ), initial coulombic efficiency (81.3%), and rate capability (195.8 mAh g −1 at 3C). This new precursor architecture opens a promising avenue for the development of high-performances cathode materials of LIBs.
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高影响因子
危险品化学品经营许可证（带存储）