期刊：
Progress in Organic Coatings,2019年127:408-418 ISSN：0300-9440
通讯作者：
Li, Xiangzhou
作者机构：
[Liu, Yanxin; Zhou, Jun; Li, Xiangzhou; Wu, Zhiping; Qian, Wei] Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China.;[Qian, Wei] Guangdong Polytech Environm Protect Engn, Nanhai 528216, Foshan, Peoples R China.;[Li, Xiangzhou] State Key Lab Ecol Appl Technol Forest Area South, Changsha 410004, Hunan, Peoples R China.;[Liu, Yanxin] Changsha Univ Sci & Technol, Sch Chem & Bioengn, Changsha 410114, Hunan, Peoples R China.
通讯机构：
[Li, Xiangzhou] C;Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China.
关键词：
Tea saponin;CTS-IFRCs;Synergistic effects;Multi-stage gas phase flame-retardant mechanism;Pyrolysis kinetic performance
摘要：
Tea saponin intumescent flame-retardant coatings (TS-IFRCs) is a green and high-efficiency flame-retardant coating based on natural-based tea saponin (TS), and has been confirmed with superior flame retardancy. The present study determined and assessed the effects of TS on the flame-retardant mechanism in composite tea saponin intumescent flame-retardant coatings (CTS-IFRCs) through the analysis of TG-DSC, FT-IR, SEM-EDS and pyrolysis kinetics. It has been demonstrated from the results that TS, synergized with other components in CTS-IFRCs, has direct and significant impacts on the char layer microstructure, flame retardancy and pyrolysis performance, these influences contributed to the double effects of TS as a blowing agent in gas phase flame-retardant mechanism, and as a carbon agent in condensed phase flame-retardant mechanism. High synergistic effects of natural-based TS revealed in this study have provided effective theoretical basis for emerging environmentally friendly bio-based flame-retardant materials and explored a new way for the utilization of TS.
关键词：
amitrole;catalase;gold;herbicide;hydrogen peroxide;iodine;nanotube;chemistry;color;colorimetry;food contamination;limit of detection;metabolism;procedures;water pollutant;Amitrole;Catalase;Color;Colorimetry;Food Contamination;Gold;Herbicides;Hydrogen Peroxide;Iodine;Limit of Detection;Nanotubes;Water Pollutants, Chemical
摘要：
The aim of present study was to evaluate the influence of cold storage on composition and properties of grass carp protein. The results show that muscle proteins of grass carp were degraded and underwent conformational changes when stored at 4 °C, and significant changes of the proteins content, as shown by the SDS-PAGE fingerprint, was observed after 6 days of storage. Protein’s surface hydrophobicity and total SH content increased during the first 4 days and then decreased gradually up to 10 days. The Ca 2+ -ATPase activity of protein decreased gradually during the storage period. The high MW proteins easily degraded during the cold storage, and the proteins with low MW were relatively stable but still gradually degraded. So the key time point for cold storage of grass carp is approximately 4-6 days. Copyright 2019 Zoological Society of Pakistan.
作者机构：
[李浔] College of Chemical and Biology Engineering, Changsha University of Science and Technology, Changsha, 410004, China;[王琼; 亓伟; 王忠铭; 袁振宏] Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangzhou, 510640, China;[卢思] College of Chemical and Biology Engineering, Changsha University of Science and Technology, Changsha, 410004, China<&wdkj&>Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangzhou, 510640, China
通讯机构：
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangzhou, China
摘要：
An effective method has been developed for Rh(III)-catalyzed direct vinylation of arenes to give functionalized styrenes, using vinyltriethoxysilane as a convenient and inexpensive vinyl source. A wide variety of substrates, including 1-aryl-2-pyrrolidinones, anilines, benzamides and ketones, were compatible with this reaction. Moreover, this method can be applied to the two-step synthesis of functionalized indoles. Mechanistic investigation reveals that the reaction probably proceeds through an oxidative Heck/desilylation pathway.
摘要：
In the present work, we synthesis glycerol ether by the biomass glycerol. Then the blended fuel was prepared with ethanol, gasolines and glycerol ether. In addition, for the oxygen-containing materials, the distance matrix D based on molecular was modified by the sum of the molecular relative bond intensity matrix R-i and the branching parameter g(i). Then the single topological index X and the mixed topological index A were established. The quantitative structure-property relationship (QSPR) of the mixture topological index A and the physicochemical properties of the glycerol ether blended fuels such as density, kinematic viscosity, calorific value and cetane number was studied by linear regression method. The mixed topological index A can be fitted well with the physicochemical properties of biomass blended fuels, and the changes of the physical and chemical properties of the blended fuels can be well reflected by the four QSPR models.
摘要：
A ratiometric two-photon fluorescent probe for SO2 derivatives was first proposed based on acedan-merocyanine dyads via a TP-FRET strategy. It was successfully applied to visualization of the fluctuations of enzymatically generated SO2 derivatives in the mitochondria of HepG2 cells and rat liver tissues using two-photon fluorescence microscopy imaging.
期刊：
Journal of Power Sources,2016年329(Oct.15):553-557 ISSN：0378-7753
通讯作者：
Wang, Jiexi;Shih, Kaimin
作者机构：
[Peng, Wenjie; Liu, Zhaomeng; Yan, Guochun; Li, Xinhai; Wang, Jiexi] Cent S Univ, Sch Met & Environm, 932 Lushan South Rd, Changsha 410083, Hunan, Peoples R China.;[Li, Hangkong; Shih, Kaimin; Wang, Jiexi] Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China.;[Song, Liubin] Changsha Univ Sci & Technol, Sch Chem & Biol Engn, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Wang, Jiexi] C;[Wang, JX; Shih, K] U;Cent S Univ, Sch Met & Environm, 932 Lushan South Rd, Changsha 410083, Hunan, Peoples R China.;Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China.
摘要：
To improve the stability of LiVPO4F electrode/electrolyte interface, Li3PO4 is used to modify LiVPO4F composite (P-LVPF) for the first time. Morphological characterization shows that LiVPO4F particles are wrapped by amorphous carbon and lithium ionic conductor Li3PO4 as the interlayer and outer layer, respectively. Compared to the pristine sample, the resultant P-LVPF exhibits greatly improved rate capability and elevated-temperature cycle performance when applied as the cathode material for lithium ion batteries. Specifically, the Li3PO4 modified sample specific capacity maintains 77.6% at 1 C after 100 cycles under 55 degrees C. Such improvement is attributed to the fact that the Li3PO4 coating layer not only acts as a good ionic conductor for LiVPO4F, but also serves as a physical barrier between electrode and electrolyte which can build a stable interface. (C) 2016 Elsevier B.V. All rights reserved.
摘要：
To improve the electrochemical performance of LiVPO4F at room and elevated temperature focusing on the stability of LiVPO4F electrode/electrolyte interface, for the first time, MoS2 nanosheets are introduced to modify LiVPO4F/C composites. The coating of MoS2 layers on the surface of LiVPO4F/C nanoparticles is realized via a solution method followed by low-temperature calcination. Morphological observations present that the MoS2 sheets are homogeneously wrapped around the LiVPO4F/C particles. When employed as cathode materials for lithium ion batteries, the MoS2-modified LiVPO4F/C composites exhibit superior high-rate capability and greatly improved cycle ability compared to bare one, and the sample coated with 1.75 wt% MoS2 (2M-LVPF) delivers the best electrochemical performance. In particular, it maintains the capacity retention of 91.7% in 100 cycles at 2.0C and delivers a reversible specific capacity of 112 mAh g(-1) at a high rate of 8.0C under room temperature. More importantly, it shows greatly improved cycling stability at elevated temperature (55 degrees C), maintaining 88.1% of its initial capacity at 0.5C after 50 cycles. The reasons for such improvement lie in the MoS2 coating layer acting as a physical barrier between electrode and electrolyte, as well as electronic/ionic conducting framework for LiVPO4F particles. (C) 2016 Elsevier B.V. All rights reserved.
作者：
Dai Yi-min*;Liu Hui;Chen Xiao-qing;Liu You-nian;Li Xun;...
期刊：
中南大学学报(英文版),2015年22(1):30-36 ISSN：2095-2899
通讯作者：
Dai Yi-min
作者机构：
[Liu You-nian; Dai Yi-min; Chen Xiao-qing] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.;[Liu Hui; Zhang Yue-fei; Cao Zhong; Zhu Zhi-ping; Dai Yi-min; Li Xun] Changsha Univ Sci & Technol, Sch Chem & Biol Engn, Hunan Prov Key Lab Mat Protect Elect Power & Tran, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Dai Yi-min] C;Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China.
关键词：
Hydrocarbons;Linear regression;Paraffins;Average absolute deviation;Fire and explosion hazards;Flash points;Group contributions;Group-contribution based models;Multiple linear regressions;Prediction performance;Quantitative structure property relationships;Neural networks
摘要：
Flash point is a primary property used to determine the fire and explosion hazards of a liquid. New group contribution-based models were presented for estimation of the flash point of alkanes by the use of multiple linear regression (MLR) and artificial neural network (ANN). This simple linear model shows a low average relative deviation (AARD) of 2.8% for a data set including 50 (40 for training set and 10 for validation set) flash points. Furthermore, the predictive ability of the model was evaluated using LOO cross validation. The results demonstrate ANN model is clearly superior both in fitness and in prediction performance. ANN model has only the average absolute deviation of 2.9 K and the average relative deviation of 0.72%.
