SOLID STATE IONICS
·
2021
·
IF 3.785
Ying Yang,Lei Li,Lili Liu,Ying Xiao,Shimou Chen
All-solid-state lithium metal batteries (LMBs) have attracted extensive attention because of their high energy density and good safety performance. But the ionic conductivity at low temperature and dendritic growth hinder their further development. In this work, a flexible all solid-state electrolyte consisted with Ce(NO 3 ) 3 , lithium bis(fluorosulfonyl) imide (LiFSI), and poly(ethylene oxide) (PEO) is synthesized. Ce(NO 3 ) 3 as an effective additive can enhance the ionic conductivity of solid polymer electrolytes (SPEs) by regulating Li + transporting and stabilizing the interface between lithium metal anode and electrolyte by forming a stable and uniform solid electrolyte interphase (SEI) on lithium metal anode surface. The as-prepared electrolyte exhibits a good ionic conductivity of 1.6 × 10 −4 S cm −1 at 60 °C and a wide electrochemical window of 4.4 V . The Li//Li symmetric cell with PEO + LiFSI+1%Ce(NO 3 ) 3 electrolyte displays a long cycling lifespan of over 1100 h at 0.1 mA cm −2 at 60 °C. Moreover, the corresponded LiFePO 4 (LFP)//Li cell exhibits a long cycling lifespan of 300 cycles and excellent rate capability. This work proposes an effective additive to improve ionic conductivity and stabilize the Li metal/electrolyte interface.
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DOI
高影响因子
Energy & Environmental Materials
·
2020
·Vol. 4
·期 2
·208-212
·
IF 0
Jinhang Lv,Ruilin Zheng,Peng Lv,Wei Wei
A solid electrolyte of LAGP [Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 ] contained 0.5 wt% LiF was prepared by using low-volatile raw materials. The effects of different heat treatment conditions (750–900 °C, 4–10 h) and additive (LiF) on the ionic conductivity, structural morphology, and crystal transformation process were investigated in detail. EIS (electrochemical impedance spectroscopies) showed that the ionic conductivity of LAGP contained 0.5 wt% LiF had a highest value of 3.17 × 10 −4 S cm −1 with low activation energy (0.31 eV) after treating 825 °C for 6 h, more than LAGP of 2.45 × 10 −4 S cm −1 . DSC analysis and SEM images indicated that adding a small amount of LiF to LAGP not only can lower the glass transition temperature (from 513 °C to 507 °C) and crystallization temperature (from 622 °C to 605 °C), but also can modify the grain boundary and increase the relative density of LAGP (from 95.8% to 97.7%).
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DOI
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Kangyi Chen,Qingmo Shi,Yue Wang,Xinghai Li,Yingying Jiang,Haoran Xu,Shilong Guo,Li Zhao,Changsong Dai
A lately proposed NASICON-structured Na 3 MnTi(PO 4 ) 3 (NMTP) provides a promising solution that enables a large theoretical specific capacity and a high voltage discharge platform. However, it encounters a difficulty in electronic conductivity which obstructs its further implements. Herein, in this work we propose the Sodium-ion battery cathode materials Na 3 Mn 1−x Sc x Ti(PO 4 ) 3 /C with different Sc contents (x = 0, 0.01, 0.03, 0.05, 0.07, 0.1), a potential cathode material for sodium-ion batteries with typical three-dimensional NASICON structure were synthesized by sol-gel method aiming to address the problem. Doping of Sc 3+ in the NMTP structure was proved by powder X-ray diffraction and energy dispersive X-ray spectroscopy techniques . Impedance spectroscopy and galvanostatic intermittent titration technique results suggest that appropriate-proportion doping has dramatically enhanced the electrical conductivity and Na ion migration of the NMTP matrix. Na 3 Mn 0.95 Sc 0.05 Ti(PO 4 ) 3 exhibited a higher initial discharge specific capacity (123 mA h /g at 0.2 C, 111 mA h /g at 1 C) and the highest cycling stability (capacity retention of 93% after 250cycles at 0.2 C, capacity retention of 88% after 500 cycles at 1 C). In addition, Electrochemical Impedance Spectroscopy and X-ray diffraction tests revealed the reasons for the improved cycling stability of the materials due to doping. Furthermore, Na 3 Mn 0.95 Sc 0.05 Ti(PO 4 ) 3 //hard carbon full cells also demonstrates ideal electrochemical properties .
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2022
·
IF 10.319
B. Li,H.J. Li,X.Y. Yao,X.F. Tian,Y.J. Jia,G.H. Feng
A (ZrC/SiC) 3 alternate coating was deposited on sharp leading edge (SLE) C/C composites by chemical vapor deposition (CVD). The ablation behavior was examined via oxyacetylene torch with heat flux of 2.38 MW/m 2 . The results indicated that the alternate coating exhibited great ablation resistance, providing an effective protection for C/C composites. In initial rapid heating stage, the (ZrC/SiC) 3 alternate coating can relieve thermal stress, avoiding the peeling of coating and keeping an intact coating structure. In subsequent ablation, the SiC layers in central region were consumed rapidly, leaving layered interspaces. Three stacked ZrO 2 layers were reserved with the assistance of the release of thermal stress by interspaces, offering a great anti-scouring effect. In transition and border regions, the alternate SiC layers can delay oxygen erosion of inner coating and C/C substrate by the formation of SiO 2 . It is believed that the results would be helpful for the design and application of anti-ablation coatings on SLE C/C composites.
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2015
·
IF 6.217
Zhantao Liu,Xusong Qin,Hui Xu,Guohua Chen
In this study, a one-pot sintering process incorporating sol–gel preparation route and in-situ carbon coating was proposed for the synthesis of carbon-coated nanosized LiTi 2 (PO 4 ) 3 . Experimental results show that the prepared LiTi 2 (PO 4 ) 3 particles are of high crystallinity and well-coated by turbostratic carbon. Attributed to nanosized particles and enhanced conductivity provided by turbostratic carbon coating, the carbon-coated LiTi 2 (PO 4 ) 3 showed high rate performance and good cycling life in aqueous electrolyte. Particularly, the carbon-coated LiTi 2 (PO 4 ) 3 exhibited initial specific capacities of 103 and 89 mAh g −1 , and retained 80.6% and 97% of the initial capacities after 120 cycles at 1C and 10C in aqueous electrolyte, respectively. The high rate performance and good cycling life of carbon-coated LiTi 2 (PO 4 ) 3 in aqueous electrolyte reveal its potential as negative electrode in aqueous lithium-ion batteries for electric vehicles and industrial-scale energy storage systems .
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米技术
·
无机化学
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Zhihua Zhang,Shaojie Chen,Jing Yang,Gaozhan Liu,Xiayin Yao,Ping Cui,Xiaoxiong Xu
The severe instability with lithium (Li) anode of NASICON-structure Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) solid-state electrolyte (SSE) greatly hinders its practical applications in the all-solid-state lithium batteries (ASSLBs) with high energy density and safety. In order to alleviate this issue, here we employed an artificial protective layer of LAGP glass on the surface of ceramic LAGP sheet to construct a surface amorphized electrolyte via a spin-coating co-sintering method. AC impedance test and galvanostatic charge-discharge cycling of Li/electrolytes/Li symmetrical cell suggest that enabled by this glass layer, the surface amorphized LAGP can exhibit better compatibility with Li anode. In addition, with a poly(ethylene oxide) polymer electrolyte in the cathode side , at 0.1 C under 60 °C, the LiFePO 4 /Li ASSLB using surface amorphized LAGP can keep stable for 120 cycles with a retention of 93.6%, which is more than 13 times of the cell using ceramic LAGP (6.9%). The formation mechanisms of unstable interphases in LAGP/Li interface were briefly summarized, and probable reasons behind the good compatibility between and LAGP glass and Li were discussed.
研究领域:
材料科学
·
电化学
·
储能技术
·
固态电池
·
陶瓷材料
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DOI
高影响因子
ACS Applied Energy Materials
·
2023
·
IF 6.4
Li-Mei Lin,Feng-Ying Wu,Zhi-Ping Huang,Li-Quan Yao,Hu Li,Ren-Yuan Liao,Ai-Cheng Chen,Jian-Min Li,Gui-Lin Chen
The reported high efficiency antimony chalcogenides devices are chronically adopted with organic hole transport layers (HTLs, i.e., Spiro-OMeTAD) because of their superior hole mobility and adequate energetic alignment. However, the high moisture sensitivity and high cost of organic HTLs will hinder their large scale application. Herein, a low-cost and stable carbon electrode is used as the back contact material for wide bandgap Sb2(S,Se)3 solar cells, and an eco-friendly MoS2 nanofilm with a suitable band structure and excellent carrier mobility is then employed to regulate the interface of Sb2(S,Se)3/carbon in terms of energy level alignment and carrier transportation. The thermal evaporated MoS2 effectively alleviates the serious recombination and remarkably improves the photoelectric conversion efficiency of wide bandgap Sb2(S,Se)3 thin-film solar cells by 50%, finally achieving an impressive efficiency of 6.1% with VOC of 0.76 V, JSC of 13.5 mA/cm2, and FF of 59%, which is among the highest efficiencies of carbon-based Sb2(S,Se)3 solar cells.
研究领域:
光伏技术
·
材料科学
·
纳米技术
·
可再生能源
·
薄膜太阳能电池
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2021
·
IF 9.127
Shujiao Yang,Zhihua Zhang,Lin Shen,Peng Chen,Zhi Gu,Mingyuan Chang,Yue zhao,Hao He,Xiayin Yao
An asymmetric solid polymer electrolyte (ASPE) is designed as two-in-one layered structure driven by gravity and in-situ polymerization. The rigid layer composed of polymer embedded three-dimensional continuous Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 (LAGP) framework improves the Li + transference number and critical current densities. The soft poly(ethylene glycol) (PEG) layer prepared via thermal polymerization by poly(ethylene glycol) methyl ether methacrylate (PEGMEM) makes good interfacial contact with cathodes. Driven by gravity, the two layers are automatically stratified during the polymerization. By virtue of this structural merit, the Li + transference number of PEG@LAGP ASPE extends to 0.144 (vs. 0.083 of PEG SPE), and symmetric Li/PEG@LAGP ASPE/Li cells can stably cycle over 400 h at current density of 0.5 mA cm −2 under 60 °C. LiFePO 4 /PEG@LAGP ASPE/Li cell exhibits excellent electrochemical performance at 2.5 C (0.5 mA cm −2 ) under 60 °C, reaching to a maximum specific capacity of 130.8 mA h g −1 and a capacity retention of 87.2% after 1000 cycles. Furthermore, the cells operating at high rates or high temperatures also have been demonstrated. This work provides a promising electrolyte design strategy for all-solid-state batteries with superior interface compatibility and long cycle life.
研究领域:
材料科学
·
电化学
·
储能技术
·
高分子科学
·
电池技术
✓ 已验证
DOI
高影响因子
ACS Omega
·
2019
·
IF 2.584
Zifeng Zheng,Zhixiang Cui,Junhui Si,Shengrui Yu,Qianting Wang,Wenzhe Chen,Lih-Sheng Turng
Composite tissue engineering scaffolds show good comprehensive properties, but improving their interfacial binding force is still a challenge. In this study, polydopamine (PDA) was used as a glue-like layer to solve the interface problem in three-dimensional (3-D) porous hydroxyapatite (HA)/thermoplastic polyurethane (TPU) composite scaffolds and to improve their comprehensive properties. The morphology, water absorption, porosity, hydrophilicity, mechanical properties, and cell viability of HA/TPU and PDA/HA/TPU scaffolds were systematically studied. The scanning electron microscopy and X-ray photoelectron spectroscopy results showed that a uniform PDA coating layer successfully formed on the surface of 3-D porous HA/TPU composite scaffolds by dopamine self-polymerization. Moreover, the conjugation effect occurred between the PDA and HA/TPU matrix, resulting in an increase in the interfacial binding force of the 3-D PDA/HA/TPU scaffold. The hydrophilicity of the PDA/HA/TPU scaffolds was significantly higher than those of the TPU scaffolds. Both static and dynamic mechanical property tests revealed that the PDA/HA/TPU scaffold possessed excellent comprehensive mechanical properties, such as high strength, high stiffness, and good flexibility, due to the enhancement of the interfacial binding force. Compared with TPU and HA/TPU scaffolds, the addition of a PDA coating could effectively improve the attachment and viability of mouse embryonic osteoblasts cells (MC3T3-E1) incubated on PDA/HA/TPU scaffolds. These results indicate that the PDA/HA/TPU scaffolds possess great potential to be used as tissue engineering scaffolds, and that the PDA coating could be a simple, practical, effective, and universal approach to modify composite scaffolds.
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DOI
高影响因子
VETERINARY MICROBIOLOGY
·
2026
·
IF 2.7
Lei-lei Yang,Min Sun,Wen-wen Zhang,Hai-yan Wang,Zi-long Cheng,Mao-jun Liu,Zhi-xin Feng,Wen-liang Li
The respiratory epithelium acts as the airway's first physical barrier against invading pathogens, mainly relying on mucociliary clearance (MCC) and apical junctional complexes (tight junctions/TJs and adherens junctions/AJs) for barrier function. Primary airway epithelial cells cultured in the air-liquid interface (ALI) system can well mimic these characteristics in vitro . This study established and characterized well-differentiated ALI-cultured goat airway epithelial cells (ALI-GAECs), and developed a CPIV3 infection model therein, verifying the apical infection and release of CPIV3 in ALI-GAECs. CPIV3 infection impaired the barrier function of ALI-GAECs, as reflected by decreased trans-epithelial electrical resistance (TEER), increased FITC-Dextran permeability, and reorganization of the ZO-1 and F-actin meshwork. Mechanistically, RT-qPCR and Western blot analyses demonstrated that CPIV3 downregulated major TJ proteins (ZO-1, occludin, claudin-1) while upregulated the expression of proinflammatory cytokines (TNF-α, IL-1β, IL-4, IL-6). The NF-κB signaling pathway, but not the MAPK pathways, was activated upon viral infection. Treatment with the NF-κB inhibitor BAY 11–7082 partially restored the expression of TJ proteins and proinflammatory cytokines. Collectively, the activation of the NF-κB pathway and subsequent production of proinflammatory cytokines is responsible for CPIV3-induced TJ disruption. In addition, the developed ALI-GAECs model provides a valuable in vitro tool for investigating the pathogenesis of CPIV3 and other caprine respiratory pathogens.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 3.9
Fang Junfei,Liu Lei,Yang Hang,Sun Yulong,Feng Rui,Li Liang,Deng Jianping,Gou Yuchun
Graphitic carbon nitride (g-C 3 N 4 ) is a material with a graphite-like layered structure. Due to its non-toxic and harmless nature, stable performance, and visible light response capability, g-C 3 N 4 holds significant application prospects in the field of photocatalysis. In this study, the Sb 2 (S,Se) 3 was coupled with g-C 3 N 4 to construct a heterojunction structure, and the photocatalytic degradation performance of the g-C 3 N 4 /Sb 2 (S,Se) 3 heterojunction materials on organic dye pollutants was investigated. Firstly, the g-C 3 N 4 /Sb 2 S 3 composite samples were prepared using a hydrothermal reaction. Subsequently, the g-C 3 N 4 /Sb 2 (S,Se) 3 heterojunction structures were constructed through selenization, and then they were used in the efficient photocatalytic degradation process of organic pollutants methylene blue (MB) and rhodamine B (RhB). The results indicate that due to the formation of the heterojunction structure, the light absorption performance of the g-C 3 N 4 /Sb 2 S 3 and g-C 3 N 4 /Sb 2 (S,Se) 3 composite materials is significantly strengthened, and the separation ability of the photo-generated carriers is remarkably improved. Therefore, compared with pure g-C 3 N 4 , the photocatalytic degradation activity of the composite system on MB and RhB is outstandingly enhanced. Furthermore, after partially replacing S with Se through selenization, the resulting heterojunction structure exhibits stronger photocatalytic degradation performance. For example, the 4-GSe sample obtained at a selenization temperature of 140 °C can achieve a degradation rate of 96% for MB within 60 min and a degradation rate of 95% for RhB within 90 min. Moreover, the prepared heterojunction structure can still maintain excellent photocatalytic degradation activity even in complex dye wastewater. This study offers innovative insights for the development of high-performance photocatalysts capable of efficiently degrading complex organic dye wastewater.
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产品关联
DOI
高影响因子
JOURNAL OF FOOD ENGINEERING
·
2026
·
IF 5.8
Xin Lin,Yuanheng Zhang,Fanghui Fan
Antarctic krill oil ( AKO ), rich in polyunsaturated fatty acids ( PUFAs ) such as EPA and DHA , is limited in food applications due to its physicochemical instability. We develop a 3D -printed carrier system incorporating small-clustered water ( SCW ) prepared layer-by-layer ( LBL) emulsion with potato starch and potato protein to enhance the stability of PUFAs in AKO . The SCW-LBL emulsion formed a compact structure with a smaller median particle size ( d 0.5 = 0.130 μm) than regular water ( RW )-based emulsions. 3D -printed SCW -emulsion carriers exhibited lower loss modules and lower viscosity in oscillatory frequency-sweep tests, which are likely associated with SCW -induced restructuring of hydrogen bonds and charge interactions, suggesting the formation of a more compact network. Printing tests confirmed that SCW -emulsion carriers improved stability and fidelity by reducing gravity-driven sedimentation. Thermal stability analysis showed SCW -emulsion carriers slowed PUFAs degradation, with higher activation energy ( E a ) and thermal resistance. Under light exposure, 3D -printed SCW -emulsion carriers displayed reduced photodegradation rates, increased photodegradation activation energy ( E p ), and enhanced the stability of AKO . Moreover, the total antioxidant capacity ( T-AOC ) of SCW -emulsion carriers increased by 7.3-8.2% compared to RW -emulsions after 8 h. This suggests that SCW may facilitate the reduction of emulsion droplet size, potentially through promoting tighter hydration and a more compact starch-protein matrix, which contributes to improved oxidation stability. Therefore, the 3D -printed SCW - LBL emulsion carrier system can be utilized by food and nutraceutical manufacturers to produce PUFA -enriched products with enhanced thermal, photochemical, and oxidative stability, as well as superior structural fidelity.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）