JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 31
·50760
·
IF 3.125
Xiaochen Yu,Jia Zheng,Zhaoxi Zhou,Qihui Chen,Maochun Hong,Heqing Fu
Firstly, cerium dioxide(CeO 2 ) was modified by 3-(Methylacryloxyl)propyltrimethoxy silane (KH-570), and modified CeO 2 (mCeO 2 ) was prepared. Then poly (urethane-acrylate) was modified by mCeO 2 , and poly (urethane-acrylate)/modified CeO 2 (PUA/mCeO 2 ) composites with ultraviolet absorption property were prepared. The morphology, thermal hydrophobicity, mechanical properties, optical properties, and UV-absorption properties of PUA/mCeO 2 composites were studied. XRD and SEM analysis showed that the modified CeO 2 had better dispersion in the matrix than that of pure CeO 2 . Ultraviolet–visible spectrum and thermogravimetric analysis were used to characterize the optical properties and thermal stability of PUA/mCeO 2 composites. The results showed that with the increasing of the mCeO 2 content, the UV-absorption property of PUA/mCeO 2 composites was improved gradually. When the content of mCeO 2 is 3%, the absorption of ultraviolet of PUA/mCeO2 composites is about 5 times of pure PUA film, and the absorption band is mainly in the UVA section. The thermal stability of PUA/mCeO 2 composites was improved with the adding of mCeO 2 . With the increasing of mCeO 2 content, the contact angle of PUA/mCeO 2 composites increased significantly. And the UV-absorption mechanism of PUA/mCeO 2 Composites was studied. UV-curable PUA/mCeO 2 composites have good UV absorption property and water resistance. They will be used in the sun screen and protect people's skin.
研究领域:
材料科学
·
高分子化学
·
纳米技术
·
光学
·
涂层与薄膜
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Shanshan Song,Yijun Gao,Linbo Cao,Ho Seok Park,Zhiliang Liu,Fei He,Wenwu Li,Meilin Liu,Piaoping Yang
Solid polymer electrolytes have emerged as promising materials for next-generation lithium metal batteries due to their enhanced safety and high energy density potential. However, their widespread adoption is hindered by slow ion transport and inefficient lithium-ion (Li + ) selectivity. To overcome these limitations, this study introduces a composite electrolyte by incorporating functionalized La(OH) 3 nanofibers with oxygen vacancies into a Poly(ethylene oxide) (PEO) matrix. These nanofibers, synthesized via a simple method, are designed to improve Li + mobility by leveraging their oxygen vacancies to immobilize TFSI − anions from the bis(trifluoromethanesulfonyl)imide (LiTFSI). Simultaneously, amino groups on the nanofiber surface act as binding sites, facilitating lithium salt dissociation and creating supplementary ion transport pathways. Density functional theory (DFT) and molecular dynamics (MD) simulations reveal that the functionalized La(OH) 3 nanofibers effectively suppress TFSI − anion movement while reducing the energy barrier for Li + migration. This mechanism elevates the Li + transference number to 0.51, a significant improvement over the conventional PEO-based electrolytes. The composite electrolyte exhibits excellent performance in Li||Li cells, maintaining stable cycling for over 600 h at a current density of 0.38 mA cm −2 . Furthermore, a solid-state LiFePO 4 ||Li battery demonstrates highly reversible capacities of 100.2 mAh g −1 after 600 cycles at 8C. By combining anion confinement strategies with tailored electronic interactions, this work provides a practical approach to advancing solid-state battery performance. The findings not only highlight the potential of La(OH) 3 -PEO composite electrolytes but also establish a new framework for optimizing ionic conductivity through targeted molecular design.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2020
·
IF 6.155
Yixuan Lv,Yijun Zhang,Le Shi,Jian-Wen Shi,Jun Li,Zhihui Li,Xin Ji,Dandan Ma,Yonghong Cheng,Chunming Niu
As a kind of white light emitting diode (w-LED) with many advantages, rare-earth-free vanadate phosphor has attracted more and more attention. The oxygen vacancies and other surface defects in vanadate oxide have obvious effects on its structure and properties. In order to reveal the specific effects, we heat-treat the original LiCa 3 Mg(VO 4 ) 3 (LCMV) in an oxygen flow with different time to decrease oxygen vacancies, and find that the lattice distortion of [VO 4 ] tetrahedron caused by oxygen vacancy is effectively reduced. Meanwhile, the crystallinity of the treated samples increases, the surface defects decreases, and the fluorescence intensity increases. The variation of photoluminescence quantum yield (PLQY) with oxygen treatment time is as follows: the enhancement effect firstly reaches the strongest (69.34 %) within one hour, then begins to decline after two hours, and finally reaches the platform after three hours and remains basically unchanged. The reason for the enhancement of PLQY is the decrease of oxygen vacancy after one-hour treatment, and the reason for the decrease of PLQY after a further increased treatment time is that the absorption of oxygen and water in air caused by excessive surface defects introduced by oxygen treatment.
研究领域:
材料科学
·
光电技术
·
固体化学
✓ 已验证
DOI
高影响因子
ChemElectroChem
·
2019
·Vol. 6
·期 17
·4681-4688
·
IF 3.975
Yu Huang,Rengui Xiao,Zhiming Ma,Weichen Zhu
Graphical In sync : The 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (EMImTfO) dual-graphite battery exhibits a high discharge plateau above 3.0 V, which originates from the synchronized de-intercalations of EMIm + and TfO − from the graphite cathode and anode, respectively. The battery can light up a red LED with 3.0 V standard voltage. In this work, a novel dual-graphite battery (DGB) based on a pure 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (EMImTfO) ionic liquid electrolyte is constructed. Within a charge/discharge voltage range of 1.0–3.9 V and at a current of 400 mA g −1 , batteries with dual-natural-graphite electrodes exhibit a high discharge plateau above 3.0 V with an initial discharge capacity of 46.2 mAh g −1 , delivering a capacity retention of 71.0 % after 100 cycles. Comparative studies between the natural graphite and the synthetic graphite (KS6) electrodes are also conducted. Charge-discharge tests reveal that the dual natural-graphite battery presents a higher discharge voltage plateau and better retention than the dual KS6-graphite battery. To confirm the principle of the dual-graphite systems, a cyclic voltammetry test is conducted. The results demonstrate that the EMIm + cation exhibits an even more stable intercalation/de-intercalation behavior than the TfO − anion. Further tests, including ex situ X-ray diffraction and ex situ Raman spectroscopy, are performed to reveal the mechanism of TfO − and EMIm + intercalation into graphite, both demonstrating a reversible process.
研究领域:
电化学
·
电池技术
·
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Kang Feng,Jing Cao,Dandan Wu,Jian Liu,Yongxing Zheng,Qi Zuo,Jianan Li
The flotation separation of chalcopyrite and galena presents a significant challenge due to their similar floatability. This research explores the application of 3-mercapto-1-propanesulfonic acid sodium salt (MPS) as a selective depressant for galena to facilitate its separation from chalcopyrite. Micro-flotation assays on individual mineral samples demonstrated that MPS efficiently inhibited galena flotation with negligible impact on chalcopyrite recovery. In the flotation of artificially blended ore samples, under optimized parameters (initial pH of 5.5 and 40 mg/L MPS), a concentrate containing 30.02 % copper (Cu) and 11.05 % lead (Pb) was obtained. The recoveries of Cu and Pb were 92.02 % and 13.86 %, respectively, indicating successful separation. The investigation utilized a suite of surface characterization methods, encompassing atomic force microscopy (AFM), zeta potential measurements, scanning electron microscopy–energy dispersive X-ray spectroscopy (SEM–EDS), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). The findings suggest that MPS exhibited robust adsorption onto the galena surface, potentially via chemisorption, thereby generating a hydrophilic layer that impeded collector adsorption. However, MPS exhibited weak adsorption on chalcopyrite, maintaining its floatability. Density functional theory (DFT) calculations supported these findings. The findings demonstrated the thiol S of MPS undergoes chemisorption onto the galena surface via S–Pb bonding with surface lead atoms. This study provides a novel small-molecule depressant with high selectivity for the flotation separation of chalcopyrite and galena.
研究领域:
矿物加工
·
表面化学
·
浮选技术
·
材料科学
·
矿业工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Kai Chen,Yanping Tang,Shuqing Zhang,Xuxia Hao,Xiaoning Zhao,Li-Qian Cheng,Youxuan Xiao,Zhaoyin Wen
Sulfide all-solid-state lithium battery (ASSLB) with nickel-rich layered oxide as the cathode is promising for next-generation energy storage system. However, the Li+ transport dynamic and stability in ASSLB are hindered by the structural mismatches and the instabilities especially at the oxide cathode/sulfide solid electrolyte (SE) interface. In this work, we have demonstrated a simple and highly effective solid-state mechanofusion method (1500 rpm for 10 min) to combine lithium conductive NASICON-type LiZr2(PO4)3 nanocrystals (∼20 nm) uniformly and compactly onto the surface of the single crystallized LiNi0.8Co0.1Mn0.1O2, which can also attractively achieve Zr4+ doping in NCM811 and oxygen vacancies in the LZPO coating without solvent and annealing. Benefiting from the alleviated interface mismatches, sufficient Li+ ion flux through the LZPO coating, promoted structural stabilities for both NCM811 and sulfide SE, strong electronic coupling effect between the LZPO and NCM811, and enlarged (003) d-spacing with enriched Li+ migration channels in NCM811, the obtained LZPO-NCM811 exhibits superior stability (185 mAh/g at 0.1C for 200 cycles) and rate performance (105 mAh/g at 1C for 1300 cycles) with high mass loading of 27 mgNCM/cm2 in sulfide ASSLB. Even with a pronounced 54 mgNCM/cm2, LZPO-NCM811 manifests a high areal capacity of 9.85 mAh/cm2. The convenient and highly effective interface engineering strategy paves the way to large-scale production of various coated cathode materials with synergistic effects for high performance ASSLBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
ACS Synthetic Biology
·
2024
·
IF 3.7
Xiao Ning,Fei Li,Xinlei Wei,Zhiguang Zhu,Chun You
3-Hydroxypropionic acid (3-HP) is a highly sought-after platform chemical serving as a precursor to a variety of high value-added chemical products. In this study, we designed and constructed a novel light-powered in vitro synthetic enzymatic biosystem comprising acetyl-CoA ligase, acetyl-CoA carboxylase, malonyl-CoA reductase, and phosphotransferase to efficiently produce 3-HP through CO2 fixation from acetate, a cost-effective and readily available substrate. The system employed natural thylakoid membranes (TMs) for the regeneration of adenosine triphosphate and nicotinamide adenine dinucleotide phosphate. Comprehensive investigations were conducted on the effects of buffer solutions, substrate concentrations, enzyme loading levels, and TMs loading levels to optimize the yield of 3-HP. Following optimization, a production of 0.46 mM 3-HP was achieved within 6 h from an initial 0.5 mM acetate, with a yield nearing 92%. This work underscores the simplicity of 3-HP production via an in vitro biomanufacturing platform and highlights the potential for incorporating TMs as a sustainable and environmentally friendly approach in biomanufacturing processes.
研究领域:
生物技术
·
生物化学
·
环境科学
·
合成生物学
✓ 已验证
DOI
PubMed
高影响因子
Food Bioscience
·
2025
·
IF 5.9
Shuai Wang,Jiayang Li,Cong Xie,Wanhui Chen,Huajie Feng,Wenying He
Our previous study found that 1-(4-bromophenyl)-5-phenyl-1H-1,2,3-triazole (BPT) exhibited very low toxicity and higher biology activity. In the present study, BPT was used to investigate its mechanism against Colletotrichum gloeosporioides in mango by chemical proteomics and chemicobiological methods. The experimental results of some phenotypic traits and cytotoxicity indicated that there are some changes in permeability of the cell membranes and BPT has fungistatic activity with lower cytotoxicity. Next, a biotin probe named BPTN with a higher activity (EC 50 value of 11.08 mg/L) than that of BPT(EC 50 value of 14.13 mg/L) was designed and synthesized by the chemical proteomics approach. The major differentially expressed proteins between BPT or BPTN and Colletotrichum gloeosporioides were identified and analyzed by Matrix-assisted laser desorption time-of-flight mass spectrometry (MALDI-TOF-MS) and bioinformatics. The results indicated that there are 25 differentially expressed proteins in Colletotrichum gloeosporioides under BPT intervention, and 29 target proteins in Colletotrichum gloeosporioides captured by BPTN. For BPTN-anthracnose system, the protein No. 8 belonged to cytochrome P450 proteins (CYP) family can be taken as a target protein of BPTN, which confirmed by bioinformatics analysis. Further, a classic fungal target protein of triazoles, sterol 14α-demethylase (CYP51) was used to verify the interaction in the presence of BPT by various spectroscopic and molecular docking methods. The results showed that BPT exhibited strong interactions with CYP51 and it was predominantly driven by hydrophobic forces and hydrogen bonds. The present study has significant theoretical and practical implications for the development of novel 1,2,3-triazole antifungal agents.
研究领域:
植物病理学
·
药理学
·
分子生物学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Gao Minjie,Yang Zongmei,Song Senchuan,Liu Xigui,Wang Fei
A series of Pd/N-doped graphene catalysts were designed for the efficient and highly selective synthesis of muscone through the hydrogenation of 3-methylcyclopentadecenone (XT). The catalysts were characterized using FT-IR, BET, XPS, XRD, Raman and SEM–EDS. All results indicated the uniform dispersion of Pd on NG. By optimizing reaction conditions, the hydrogenation of XT achieved a high yield and selectivity of muscone, producing a 99% yield at 2 MPa H 2 and 90 °C in 10 h using a 10 wt% Pd/N-doped graphene catalyst functionalized with melamine (Pd/NmG), which significantly outperformed conventional Pd/C catalysts. Graphical abstract
研究领域:
催化化学
·
有机合成
·
材料科学
·
化学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Shiqi Sun,Yanjun Chen,Qiang Bai,Zhen Tian,Que Huang,Changcheng Liu,Shengnan He,Yaxiong Yang,Yanzhong Wang,Li Guo
Researchers are accustomed to utilizing traditional solid-state and sol–gel routes to synthesize Na 3 V 2 (PO 4 ) 3 (NVP). No regulation mechanism is proposed to illustrate the growth process of NVP in solvothermal environment. In current work, uniform spherical particles with positive charge are synthesized by molecular self-assembly of nanosphere micelles using structural guiding agent polyethylene glycol (PEG) and surfactant Cetyltrimethylammonium bromide (CTAB). Nanoflower-shaped NVP sample is successfully prepared in the 100 % methyl alcohol medium, derived from the plate V 2 O 5 (negative charge) combining with the nuclear nanospheres (positive charge) with the induction of electrostatic attraction. Based on the multi-dimensional tests and molecular dynamic calculation, the protective mechanism of polar solution for NVP system is proposed for the first time, that is, methanol solvent system can better protect the morphological features of NVP than water environment to maintain the original special nanoflower morphology. Due to the distinctive and stabilized nanoflower construction, the optimized NVP60 sample can provide more extra active sites for the efficient de-intercalation of Na + and possess a large contacting area with electrolyte, resulting in the facilitated kinetic characteristics and superior electrochemical performance. The optimized NVP60 cathode possesses superior sodium storage property in both half cell and full cell. This work proposes a synergetic strategy combining theory and experiment to design and synthesize the modified NVP-based cathode materials from the molecular bonding aspect, further promoting the development of high performance cathode for SIBs.
研究领域:
材料科学
·
电化学
·
纳米材料
·
能源存储
·
无机化学
·
计算材料学
·
电池技术
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zhuang-Hao Zheng,Ning Chen,Zi-Long Zhang,Jun-Ze Zhang,Dong Yang,Mohammad Nisar,Mazhar Hussain Danish,Fu Li,Shuo Chen,Jing-Ting Luo,Guang-Xing Liang,Yue-Xing Chen
Flexible thermoelectric (TE) generators have received great attention as a sustainable and reliable option to convert heat from the human body and other ambient sources into electricity. This study provides a synthesis route that involves thermally induced diffusion to introduce Te and Se into Bi, fabricating an n-type Bi–Te–Se flexible thin film on a flexible substrate. This specific synthesis alters the crystal orientation (00l) of the thin film, improving in-plane electrical transportation and optimizing carrier concentration. Consequently, BixTeySe0.42 enhanced both the Seebeck coefficient and electrical conductivity, achieving a power factor of 17.1 μW cm–1 K–2 at room temperature. The TE device assembled with p-type Sb2Te3 exhibited exceptional flexibility with only a 26.2% change in resistance after 1000 times of bending at a radius of about 6 mm. The resistance change was further reduced to 7.5% after the application of a vinyl laurate coating. The fabricated TE device generated an ultrahigh output power of 792 nW with a temperature difference of 30 K.
研究领域:
材料科学
·
热电学
·
柔性电子
✓ 已验证
DOI
高影响因子
BIOELECTROCHEMISTRY
·
2024
·
IF 4.8
Guiyin Li,Huafu Feng,Xinhao Li,Shengnan Li,Jintao Liang,Zhide Zhou
Glypican-3 (GPC3) is an essential reference target for hepatocellular carcinoma detection, follow-up and prediction. Herein, a dual-signal electrochemical aptasensor based on reduced graphene oxide-cuprous oxide (RGO-Cu 2 O) nanozyme was developed for GPC3 detection. The RGO-Cu 2 O nanoenzyme displayed excellent electron transport effect, large specific surface area and outstanding peroxidase-like ability. The differential pulse voltammetry (DPV) signal of Cu 2 O oxidation fraction and the chronoamperometry ( i-t ) signal of H 2 O 2 decomposition catalyzed by RGO-Cu 2 O nanozyme were used as dual-signal detection. Under optimal conditions, the log-linear response ranges were 0.1 to 500.0 ng/mL with the limit of detection 0.064 ng/mL for DPV technique, and 0.1–50.0 ng/mL for i-t technique (detection limit of 0.0177 ng/mL). The electrochemical aptasensor has remarkably analytical performance with wide response range, low detection limit, excellent repeatability and specificity, good recovery in human serum samples. The two output signals of one sample achieve self-calibration of the results, effectively avoiding the occurrence of possible leakage and misdiagnosis of a single detection signal, suggesting that it will be a promising method in the early biomarker detection.
研究领域:
生物医学工程
·
肿瘤学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）