JOURNAL OF APPLIED ELECTROCHEMISTRY
·
2025
·Vol. 56
·期 1
·13
·
IF 3
Zhang Weijian,Han Jiaxing,Zhao Yuhui,Zhang Wei,Bao Yingqing,Wu XiaoZhen,Zhen Aigang,Zhu Binglong,Zhang Chunqiang,Qin Hengfei,Zhuang Yan
The rapid expansion of the lithium-ion battery market has intensified the need for recycling and regeneration of used lithium-ion batteries. The present research aimed to directly regenerate secondary agglomerated particles derived from spent lithium nickel cobalt manganese oxide (LiN 0.5 Co 0.2 Mn 0.3 O 2 ) cathode materials into single-crystal particles by employing a ternary molten salt mixture composed of lithium hydroxide, lithium carbonate, and sodium sulfate. The effects of calcination temperature (800 ℃, 850 ℃, and 900 ℃) and calcination duration (10, 12, and 14 h) on the electrochemical performance of the regenerated materials were investigated. Electrochemical evaluation indicated that calcination at 850 °C for 12 h yielded a discharge-specific capacity of 116.7 mAh g⁻¹ during the first cycle at a rate of 1 C (1 C = 160 mAh g⁻¹) and maintained a capacity retention of 84.4% after 400 cycles at 1 C. The regeneration process effectively restored the layered crystal structure of the cathode material, and the regenerated samples exhibited electrochemical properties comparable to those of commercial single-crystal counterparts, confirming the feasibility of using ternary molten salts for direct regeneration of spent lithium nickel cobalt manganese oxide cathodes. Graphical
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2025
·Vol. 15
·期 1
·44909
·
IF 3.9
Xia Xiuyuan,Zhang Zhenghan,Wang Yizhen,Chen Chen,Wang Yaqi,Luo Yanting,Gao Ying,Hong Weiyong,Ren Chuanpeng
Quercetin and carnosine, natural antioxidants with anti-aging and photoprotective potential, face therapeutic limitations due to poor skin permeability. We engineered EV-QuerCar, a liposomal-based nanoparticles (LPNs) system co-encapsulating both compounds, to enhance transdermal delivery and evaluate its structural and functional efficacy. EV-QuerCar was prepared biomimetically using thermophilic bacterial lipids via ultracentrifugation, thin-film hydration, and high-pressure homogenization. Physicochemical properties, transdermal penetration, cellular uptake, and cytotoxicity were tested in vitro. Molecular docking and qPCR assessed pathway targeting. EV-QuerCar exhibited uniform size (94.70 ± 0.71 nm), high encapsulation efficiency (90.07%), sustained release, and 3.21-fold enhanced transdermal absorption compared to free compounds. Cellular uptake in fibroblasts increased time-dependently (up to 5.48-fold at 4 h). Molecular docking and qPCR confirmed interactions with NRF2 and HES1 targets, significantly upregulating their mRNA levels (2.29- and 3.35-fold, respectively) in UV-exposed human fibroblasts. EV-QuerCar improves skin permeability and antioxidant efficacy, highlighting its cosmeceutical promise.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MOLECULAR NEUROBIOLOGY
·
2025
·Vol. 63
·期 1
·335
·
IF 4.3
Pan Gaowei,Liu Xiaoling,Zhang Xiaoyue,Gao Hao,Xu Ting,Li Kemin,Wang Lei,Ji Shangrong,Li Ting,Zhang Shengxiang
Monomeric C-reactive protein (mCRP) is a key acute phase reactant involved in inflammatory responses. Cerebral ischemia triggers persistent neuroinflammation. However, the effects of mCRP on global cerebral ischemia are poorly understood. In present study, mCRP was intracerebroventricularly injected to brain, and a bilateral common carotid artery ligation (BCAL) model was established in CX3CR1 GFP/+ mice. Behavioral tests were employed to evaluate spontaneous activity, rotarod performance (latency to fall), and forelimb grasping strength in mice. Nissl and Fluoro-Jade C (FJ-C) staining were used to assess neuronal injury. Skeletonization analysis and CD16/32, CD206 staining were used to assess microglial activation. RT-qPCR was applied to evaluate the changes of inflammatory factors and complement system. Primary cultured microglia and oxygen–glucose deprivation (OGD) model were used to verify the effects of mCRP on microglia in vitro . Results showed that mCRP treatment exacerbated behavioral performance post-ischemia. Nissl staining showed that mCRP caused a significant decrease in neuronal density. Additionally, FJ-C staining indicated an increase in degenerative cells after mCRP treatment. Immunofluorescence analysis revealed an increase in CD16/32 and CD206-positive microglia, and skeletonization analysis showed increased de-ramification of microglia following mCRP administration. RT-qPCR results further demonstrated that mCRP treatment upregulated the expression of pro-inflammatory and anti-inflammatory factors, as well as complement system components, in both brain tissue and primary cultured microglia following ischemia or OGD. These findings suggest that mCRP significantly enhances microglial activation, increases the level of inflammatory response, exacerbates neuronal loss and degenerative damage, and impairs behavioral performance after ischemia.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
BULLETIN OF MATERIALS SCIENCE
·
2015
·Vol. 38
·期 5
·1149-1154
·
IF 1.017
DENG TIAN,ZHANG CHONGRONG,XIAO YUYUAN,XIE ANRAN,PANG YUE,YANG YANZHAO
The samarium-doped ceria (SDC) nanospheres were prepared by the one-step hydrothermal method and characterized by transmission electron microscope, scanning electron microscope, powder X-ray diffraction, X-ray photoelectron spectroscopy, energy-dispersive spectrometer and Raman spectra. According to the results, samarium was doped into the lattice successfully. The as-prepared samples were dispersed well and the average diameter was 60 nm. It showed better catalytic performance than pure ceria and the most appropriate concentration of doping was found.
研究领域:
材料科学
·
催化化学
✓ 已验证
DOI
高影响因子
Nanoscale Research Letters
·
2014
·Vol. 9
·期 1
·1-9
·
IF 2.481
Li Jiani,Yu Kejing,Qian Kun,Cao Haijian,Lu Xuefeng,Sun Jie
A method for situ preparing a hybrid material consisting of silica nanoparticles (SiO 2 ) attached onto the surface of functionalized graphene nanoplatelets (f-GNPs) is proposed. Firstly, polyacrylic acid (PAA) was grafted to the surface of f-GNPs to increase reacting sites, and then 3-aminopropyltriethoxysilane (APTES) KH550 reacted with abovementioned product PAA-GNPs to obtain siloxane-GNPs, thus providing reaction sites for the growth of SiO 2 on the surface of GNPs. Finally, the SiO 2 /graphene nanoplatelets (SiO 2 /GNPs) hybrid material is obtained through introducing siloxane-GNPs into a solution of tetraethyl orthosilicate, ammonia and ethanol for hours' reaction. The results from Fourier transform infrared spectroscopy (FTIR) showed that SiO 2 particles have situ grown on the surface of GNPs through chemical bonds as Si-O-Si. And the nanostructure of hybrid materials was characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). All the images indicated that SiO 2 particles with similar sizes were grafted on the surface of graphene nanoplatelets successfully. And TEM images also showed the whole growth process of SiO 2 particles on the surface of graphene as time grows. Moreover, TGA traces suggested the SiO 2 /GNPs hybrid material had stable thermal stability. And at 900°C, the residual weight fraction of polymer on siloxane-GNPs was about 94.2% and that of SiO 2 particles on hybrid materials was about 75.0%. However, the result of Raman spectroscopy showed that carbon atoms of graphene nanoplatelets became much more disordered, due to the destroyed carbon domains during the process of chemical drafting. Through orthogonal experiments, hybrid materials with various sizes of SiO 2 particles were prepared, thus achieving the particle sizes controllable. And the factors’ level of significance is as follows: the quantity of ammonia > the quantity of tetraethyl orthosilicate (TEOS) > the reaction time.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2022
·Vol. 39
·期 9
·2324-2333
·
IF 3.146
Zhou Feng,Cai Jinjin,Mao Xiaoning,Wu Zhenyu,Nie Yong
As a green plasticizer, the industrial production of dioctyl terephthalate (DOTP) is still facing the problem of high energy consumption. To optimize the production process and reactor, it is essential to understand the kinetic behavior of reaction system. In this work, the two-step consecutive esterification of solid terephthalic acid (PTA) and 2-ethylhexanol (2-EH) catalyzed by tetrabutyl titanate was studied. First, the equilibrium constants and enthalpies of the two-step reaction were experimentally determined and validated by the group contribution methods. Then, a pseudohomogeneous kinetic model was developed, and the reaction order of PTA was corrected to reflect its solid phase characteristic. Non-isothermal kinetic experiments were carried out under different initial feed molar ratios and catalyst concentrations, and the kinetic parameters in the model were estimated by mathematical regression. The model predicted data agreed well with the experimental data. Finally, the analyses of reaction rate showed that the first-step reaction was the rate-controlling step of the whole esterification process.
研究领域:
化学工程
·
工业催化
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2019
·Vol. 30
·期 11
·10454-10464
·
IF 2.195
Yao Jiao,Ye Huihua,Wang Xusheng,Li Yanxia
The xMg 2+ /ySm 3+ ions co-doped CaTiO 3 :0.12Eu 3+ red phosphors were synthesized by solid-state reaction method and their structure, crystalline morphology, luminescent properties, decay curves and quantum efficiency were investigated in detail. The XRD patterns show these phosphors have an orthorhombic perovskite structure when the sintering temperature was 1350 °C. From photoluminescence spectra, two excitation peaks were observed located at 397 nm ( 7 F 0 → 5 L 6 ) and 465 nm ( 7 F 0 → 5 D 2 ), and there are two prominent red emission peaks around 595 nm ( 5 D 0 → 7 F 1 ) and 616 nm ( 5 D 0 → 7 F 2 ) corresponding to the magnetic dipole transition and electric dipole transition of Eu 3+ respectively. The luminescent properties were improved by adjusting Mg 2+ and Sm 3+ ions co-doping concentration and their optimal doping amount was found to be 7 mol% and 0.5 mol%. At this moment, their internal quantum efficiency was measured to be 52.4% and 47.5% respectively and decay times were 0.64 ms and 0.59 ms. According to concentration quench theory, the critical distance between activators in CaMTiO 3 :Eu 3+ (M = Mg, Sm) were 15.27 Å and 15.07 Å. CaTiO 3 :Eu 3+ phosphor’s thermal stability has been improved a lot due to Mg 2+ introduction. When temperature increases from 248 to 388 K, the red emission intensity of CaMg 0.07 TiO 3 :0.12Eu 3+ and CaMg 0.07 TiO 3 :0.12Eu 3+ ,0.005Sm 3+ phosphors have decayed only 12.1% and 15.9% respectively. These experimental results have indicated that the synthesized red phosphors can be used in solid state lighting devices.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
·
2022
·Vol. 53
·期 4
·2753-2762
·
IF 2.872
Zhao Zhuqing,Cai Muya,Zhao Haijia,Ma Qiang,Li Xianyang,Xie Hongwei,Xing Pengfei,Zhuang Yanxin,Yin Huayi
Suppressing the formation of SiC during the magnesiothermic reduction of SiO 2 –C composite is still challenging. In this paper, the formation of SiC can be tentatively controlled by tuning the reactivity of reductants that can be modulated by alloying with Si at different atomic ratios. The reduction product is SiC when using Mg as the reductant, while the C–Si composites are formed when using the reductants with relatively low reactivity ( e.g. , Mg–Si alloy, Ca–Si alloy). The obtained C–Si composites reduced from C–SiO 2 show excellent electrochemical performance, delivering a specific discharge capacity of 925 mAh g −1 at 1 A g −1 after 200 cycles and 825 mAh g −1 at 2 A g −1 after 300 cycles. In addition, when bio-silica is used as Si resource, the C–Si composites prepared from the rice husks also exhibit excellent electrochemical performance, delivering a specific discharge capacity of 687 mAh g −1 at 2 A g −1 after 300 cycles. Overall, the revealed reactivity–composition relationship can be extended to selectively prepare carbon- or carbide-based target materials as well as to harvest both C and Si from Si-containing waste biomasses.
研究领域:
材料科学
·
化学工程
·
电化学
·
生物质废物利用
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2016
·Vol. 51
·期 19
·8888-8899
·
IF 2.302
Luo Qiyun,Li Yuqi,Pan Lulu,Song Laifu,yang Jin,Wu Lingyan,Lu Shaorong
Interface design plays a crucial role in developing superior mechanical performance of nature fibers/polymer composites (NPC). Herein, microcrystalline cellulose fibers (MCFs), extracted from sisal fibers, were modified by function end-group hyperbranched liquid crystals (HLP) with respect to improve the wettability and interactions between the MCFs and epoxy resin (EP). The HLP that modified MCFs (HLP-MCFs) were studied by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and polarizing microscope. The results showed that the MCFs can be successfully modified by the HLP, which would provide strong MCFs/matrix interfacial adhesion. Therefore, the addition of HLP-MCFs was found to produce significant enhancements in the mechanical and thermal properties of EP. In particular, at 1.0 wt% filler loading, the flexural strength, tensile strength, impact strength, and flexural modulus of the HLP-MCFs/EP composites increased by 60, 69, 130, and 192 %, respectively, as well as the glass transition temperature increased by a notable 42.9 °C. It is anticipated that our current work would inform ongoing efforts to exploit more efficient method to overcome the poor nature fiber/polymer adhesion in the interface region and broad implications for the development of the NPC for engineering applications.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2021
·Vol. 56
·期 21
·12326-12335
·
IF 4.22
Qu Junfeng,Xu Shuhong,Liu Fan,Wang Zhuyuan,Shao Haibao,Cui Yiping,Wang Chunlei
Abstract Compared with widely studied lead halide perovskite, copper halide perovskite is toxic-free and combines better stability with comparable photoluminescence quantum yield. Cation doping has proven to be an effective way to manipulate optical and electronic properties of perovskite. Unlike lead halide perovskite able to act as the host of different kinds of dopant, copper halide perovskite acting as host material is still a great challenge. Herein, Mn was successfully doped into Cs \(_3\) Cu \(_2\) I \(_5\) under room temperature via solid-state reaction. In addition to original self-trapped emission of Cs \(_3\) Cu \(_2\) I \(_5\) at 445 nm, Mn dopant introduced characteristic emission at \(\sim \) 550 nm and realized dual color emission tuned by feeding ratio, extending chroma of Cs \(_3\) Cu \(_2\) I \(_5\) in blue region. Meanwhile, ultraviolet photo-electron spectra results confirmed that Mn \(^{2+}\) ion replacing Cu \(^+\) resulted in p-type doping in Cs \(_3\) Cu \(_2\) I \(_5\) . The as-prepared Mn:Cs \(_3\) Cu \(_2\) I \(_5\) microcrystals show excellent stability with almost unchanged PL intensity within 15 days. Graphical abstract
Synthesis of p-type Mn:Cs3Cu2I5 with dual-color emission through room-temperature grinding method.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Nanoscale Research Letters
·
2021
·Vol. 16
·期 1
·1-10
·
IF 4.703
Yin Donghang,Tang Junyan,Bai Rongbiao,Yin Shuyi,Jiang Mengnan,Kan Zigui,Li Hongmei,Wang Fei,Li Caolong
In this work, cobalt phosphide nanoparticles (Co 2 P NPs) were prepared by simple and mild hydrothermal method without the use of harmful phosphorous source. The morphological structure and surface component of Co 2 P were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy measurements. Considering the excellent electrocatalytic reduction activity and good electrical conductivity of transition-metal phosphide, we fabricated Co 2 P NPs on indium tin oxide (ITO) substrate (Co 2 P/ITO) for H 2 O 2 detection. The Co 2 P/ITO transducer displayed a rapid amperometric response less than 5 s, a broader response range from 0.001 to 10.0 mM and a low detection limit of 0.65 μM. In addition, the non-enzymatic Co 2 P/ITO sensor showed outstanding selectivity, reproducibility, repeatability and stability, all of which qualified the Co 2 P/ITO electrode for quite a reliable and promising biosensor for H 2 O 2 sensing.
研究领域:
生物分析化学
·
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2022
·Vol. 33
·期 21
·17306-17321
·
IF 2.779
Li Runkang,Li Chaojie,Zhang Fan,Cui Yi,LV Dongfeng,Chen Yuejun,Wei Yingna,Wei Hengyong,Bu Jinglong
Herein, the unique porous vanadium nitride microspheres as electromagnetic wave absorption materials were prepared via solvothermal and ammonia reduction nitridation using NH 4 VO 3 as raw material. The results show that the vanadium nitride microspheres contain residual oxygen, which facilitates impedance matching and interfacial polarization. Besides that, the vanadium nitride microspheres have irregular surfaces and internal mesopores providing suitable impedance matching, interfacial polarization, multiple reflections and scattering. Hence, the superior absorption properties in the X and Ku band are achieved by adjusting the weight ratio of vanadium nitride microspheres-paraffin. The optimal reflection loss for the sample with 20 wt% vanadium nitride microsphere filler loading was − 51.5 dB (X-band). In addition, the strongest reflection loss (RL min ) is − 54.2 dB (Ku-band) and the EAB is 4.14 GHz at 1.91 mm thickness when the filler loading of vanadium nitride microspheres was 25 wt%. It is demonstrated that the high-absorption performance, light weight, and large bandwidth of porous vanadium nitride microspheres offer a new strategy for transition metal nitride electromagnetic wave absorbers.
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）