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| 1 | Surface Modification and Characterization of PET Fibers显示文摘Improvement in synthetic fiber based composites is a hot topic in the material area.The incompatibility between the surfaces of synthetic fibers is a significant challenge due to fibers hydrophobic property.In this study,PET(polyethylene terephthalate) fibers based on low hydrophilic were slightly treated with NaOH or sodium dodecyl benzene sulfonate(SDBS).SEM images showed that there were some pits on the surface of PET fibers treated by NaOH,while PET fibers treated by SDBS became smoother.The peaks at 3725 cm^(-1) and 3628 cm^(-1) were generated for PET fibers treated by NaOH,which was attributed to—OH produced from the ester group hydrolysis,but no same peak is shown for the treated ones by SDBS.Meanwhile,the crystallinity indices of the treated PET fibers slightly decreased.Compared with original PET fibers,the formation of sheet made from PET fibers treated by NaOH became worse,but that from SDBS treated PET fibers became better. | SuFeng Zhang MeiJuan Zhang ZhaoXia Sun Jing Wan CongCong Chi | 2016 | Paper And Biomaterials2016，1，2： | 4 |
| 2 | Operando X-ray diffraction analysis of the degradation mechanisms of a spinel LiMn2O4 cathode in different voltage windows显示文摘The understanding of reaction mechanisms of electrode materials is of significant importance for the development of advanced batteries.The LiMn2O4 cathode has a voltage plateau around 2.8 V(vs.Li^+/Li),which can provide an additional capacity for Li storage,but it suffers from a severe capacity degradation.In this study,operando X-ray diffraction is carried out to investigate the structural evolutions and degradation mechanisms of LiMn2O4 in different voltage ranges.In the range of 3.0-4.3 V(vs.Li^+/Li),the LiMn2O4 cathode exhibits a low capacity but good cycling stability with cycles up to 100 cycles and the charge/discharge processes are associated with the reversible extraction/insertion of Li^+from/into LixMn2O4(0≤x≤1).In the range of 1.4-4.4 V(vs.Li^+/Li),a capacity higher than 200 mAh/g is achieved,but it rapidly decays during the cycling.The voltage plateau around 2.8 V(vs.Li^+/Li)is related to the transformation of the cubic LiMn2O4 phase to the tetragonal Li2Mn2O4 phase,which leads to the formation of cracks as well as the performance degradation. | Fakui Luo Congcong Wei Chi Zhang Hui Gao Jiazheng Niu Wensheng Ma Zhangquan Peng Yanwen Bai Zhonghua Zhang | 2020 | Journal of Energy Chemistry2020，29，5： | 2 |
| 3 | Determination of Furfural and Hydroxymethylfurfural Formed from Biomass Under Acidic Conditions 显示文摘 | Chi Congcong Zhang Zeng Chang Houmin | 2009 | Wood Chem Technol2009，29，4： | 1 |
| 4 | A meth- od for rapid determination of sugars from lignocellulose prehydrolyzate显示文摘 | Congcong Chi Houming Chang Zhijian Li | 2013 | Bioresources2013，8，1： | 1 |
| 5 | Polypyrrole Hollow Nanotubes Loaded with Au and Fe_(3)O_(4) Nanoparticles for Simultaneous Determination of Ascorbic Acid,Dopamine,and Uric Acid显示文摘An ultrasensitive electrochemical biosensor was fabricated for electroanalytical determination of ascorbic acid(AA),dopamine(DA)and uric acid(UA)individually and simultaneously based on polypyrrole hollow nanotubes loaded with Au and Fe_(3)O_(4) nanoparticles(NPs)uniformly(PPy@Au-Fe_(3)O_(4)).The PPy@Au-Fe_(3)O_(4) nanotubes were synthesized in one-pot using MoO_(3) nanorods as templates and the polymerization of Py,the formation of Au and Fe_(3)O_(4) NPs and the removel of MoO_(3) templates took place stimultaneously.Electrochemical studies reveal that PPy@Au-Fe_(3)O_(4) modified glassy carbon electrode(GCE)possesses excellent electrocatalytic activities toward the oxidation of AA,DA and UA.Their oxidation peak currents increase linearly in the concentration ranges of 1–2000µmol/L for AA,0.01–25 and 25–300µmol/L for DA and 0.1–300µmol/L for UA.Their detection limit values(S/N=3)were calculated as 0.45,0.0049,and 0.051µmol/L for AA,DA and UA in the individual detection.By changing the concentrations simultaneously,the calibration curves showed linearity to 1000,200,and 200µmol/L with detection limit of 0.39,0.0060,and 0.060µmol/L for AA,DA,and UA,respectively.Finally,the obtained biosensor was successfully applied to the detection of AA,DA,and UA with satisfactory results on actual samples. | SHEN Congcong CHEN Yuehua FENG Beidou CHI Hongying ZHANG Hua | 2022 | Chemical Research in Chinese Universities2022，38，4： | 0 |
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