BIOLOGICAL TRACE ELEMENT RESEARCH
·
2018
·Vol. 186
·期 2
·467-473
·
IF 2.361
Cao Changyu,Luo Junchong,Li Xiaowen,Zhang Mengdan,Zhang Haoji,Zhang Jipei,Wang Kai
The aim of this study was to evaluate the protective effects of SeY (selenium-rich yeast) against Al (aluminum)-induced inflammation and ionic imbalances. Male Kunming mice were treated with Al (10 mg/kg) and/or SeY (0.1 mg/kg) by oral gavage for 28 days. The degree of inflammation was assessed by mRNA expression of inflammatory biomarkers. Ionic disorders were assessed by determining the Na + , K + , and Ca 2+ content, as well as the alteration in ATP-modifying enzymes (ATPases), including Na + K + -ATPase, Ca 2+ -ATPase, Mg 2+ -ATPase, Ca 2+ Mg 2+ -ATPase, and the mRNA levels of ATPase’s subunits in kidney. It was observed here that SeY exhibited a significant protective effect on the kidney against the Al-induced upregulation of pro-inflammatory and downregulation of anti-inflammatory cytokines. Furthermore, a significant effect of Al on the Na + , K + , Ca 2+ , and Mg 2+ levels in kidney was observed, and Al was observed to decrease the activities of Na + K + -ATPase, Mg 2+ -ATPase, and Ca 2+ Mg 2+ -ATPase. The mRNA expression of the Na + K + -ATPase subunits and Ca 2+ -ATPase subunits was regulated significantly by Al. Notably, SeY modulated the Al-induced alterations of ion concentrations, ATPase activity, and mRNA expression of their subunits. These results suggest that SeY prevents renal toxicity caused by Al via regulation of inflammatory responses, ATPase activities, and transcription of their subunits.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
IONICS
·
2018
·Vol. 24
·期 11
·3367-3373
·
IF 2.347
Zhang Rui-Tao,Han Jia-Jun,Liu Pan,Bao Chang-Yuan,Cheng Jin-Ning
Graphene oxide (GO) was synthesized by an improved Hummers method and then reduced with NaBH 4 ; GO became rGO with regular layered structure. Polyaniline (PANI)/rGO composite was prepared by a adsorption double oxidant method with rGO as a template. Some physical characterization methods (Fourier transform infrared spectroscopy analysis, X-ray diffraction, scanning electron microscope, and transmission electron microscope) were used to analyze the morphology and crystallinity of the composite. The electrochemical properties were characterized by cyclic voltammetry, impedance spectroscopy, galvanostatic charge/discharge, and rate capability. The first discharge specific capacity of the rPANI/rGO and PANI/rGO was 181.2 and 147.8 mAh/g. After 100 cycles, the capacity retention rate was still 90.2 and 88.9% separately, and the coulombic efficiency of batteries is close to 100%. These results demonstrate the composite has exciting potentials for the cathode material of lithium-ion battery.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2012
·
IF 3.461
Bo Yang,Shubo Deng,Gang Yu,Yonghong Lu,Hong Zhang,Jianzhong Xiao,Gang Chen,Xiaobing Cheng,Lili Shi
Nanoscale Al particles with average diameter of about 100 nm were employed to prepare Pd/Al nanoparticles (NPs) by chemical displacement deposition. It was proved that Pd 2+ acidic deposition solution was superior to its alkaline deposition solution in terms of Pd loading rate on Al NPs. The Pd/Al NPs were characterized by ICP–OES, SEM, TEM, XRD, BET and then used to explore hydrodechlorination (HDC) performance of 3-chlorophenol (3-CP) in aqueous solution. Major factors affecting HDC efficiency were investigated including Al substrate sizes, pH, Pd loadings in Pd/Al NPs, dosage of Pd/Al NPs, and temperature. The optimal results indicated that nanoscale Pd/Al bimetallic particles were highly effective for 3-CP HDC. HDC efficiency was only about 30% in 50 min reaction with micron sizes of Pd/Al particles (100–400 mesh), whereas it increased to 99.7% within 30 min using Pd/Al NPs at 25 °C. Aqueous pH presented remarkable effect on HDC and pH 3–4 was the optimum range for HDC as pH varied from 2 to 11. Pd loadings and Pd/Al dosages were optimized for highly effective HDC as 1.16 wt.% and 2 g/L, respectively. In addition, higher HDC performance was obtained while reaction temperature arrived at 45 °C and 0.389 mM of 3-CP could be completely dechlorinated into phenol only within 10 min reaction.
✓ 已验证
产品关联
DOI
高影响因子
Micro & Nano Letters
·
2014
·Vol. 9
·期 2
·132-135
·
IF 0.799
Chunmei Jiang,Yongjun Ma,Fengqi Zhao,Lun Wei,Heng Zhang,Chonghua Pei
A simple and effective way for preparing AlB 2 nanopowders was developed using solid state reaction with a mixture of nanometre-sized powders of aluminium and amorphous boron. The optimum synthesis conditions and the structural characteristics of the products were carefully investigated by means of X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy and an energy dispersive spectrometer. The best result was obtained at a synthesis temperature of 900°C for 2 h with a molar ratio of 1:1.8. The obtained AlB 2 nanopowders consisted of numerous anomalous spherical particles with the grain size ranging from 100 to 200 nm. Furthermore, differential scanning calorimetry analysis showed that the combustion characteristics of the as-prepared AlB 2 nanopowders were better than that of the commercial AlB 2 powder under the same condition.
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2015
·
IF 1.998
Xiaogang Guo,Xueming Li,Hongru Li,Daixiong Zhang,Chuan Lai,Wulin Li
In this study, the nano-Al/Ni energetic composite coatings (ANECCs) have been successfully fabricated by the electrophoretic deposition (EPD) method at the room temperature and normal pressure. Isopropyl alcohol is demonstrated to act as the suitable dispersion agent for the EPD. The SEM and EDS results show that the obtained ANECCs are relatively smooth and evenly distributed. Both the phase constitution and exothermic behavior of the ANECCs are characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC) analysis at the same while. In addition, the kinetics of the nanoparticles during the EPD process are investigated in detail. The exothermic performance of products studies show that the ANECCs prepared by EPD exhibit the great combustion performance and thermodynamic properties. Furthermore, the combustion processes of samples are recorded and analyzed by the high-speed photography. This work demonstrates that EPD method is a facile and effective approach in the preparation of Al/Ni energetic coatings with the widespread application.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2013
·Vol. 1
·期 34
·9752-9759
·
IF 0
Xiulin Fan,Xuezhang Xiao,Lixin Chen,Liuting Zhang,Jie Shao,Shouquan Li,Hongwei Ge,Qidong Wang
NaAlH4, a prototypical high energy density complex hydride, possesses a favorable thermodynamics and high hydrogen storage capacity. However, the poor kinetics and degradation of cycling stability retard its practical application. To ease these problems, CeB6, CeF3 and CeO2 nanoparticles with a size of about 10 nm are synthesized by the wet-chemistry method and introduced into NaAlH4 systems as additives in this work. The results show that all of the nanoparticles are effective in improving the hydriding–dehydriding kinetics of NaAlH4, and nano-CeB6 possesses the highest catalytic activity. The rehydrogenation of dehydrogenated NaAlH4 doped with nano-CeB6 can be accomplished in less than 20 min with a high capacity of 4.9 wt%, which shows a 20% increase in capacity compared to that of chloride-doped NaAlH4. Due to the structural stability and good dispersion of nano-CeB6 and nano-CeF3, a favorable cycling stability with high capacity retention is achieved for their doped samples. Moreover, hydrogen can be released from the hydrogenated sample doped with nano-CeB6 at a temperature as low as 75 °C, fulfilling the operation temperature of a PEM fuel cell. In the nano-CeO2 doped NaAlH4 system, CeO2 is first reduced to CeH2.51. In the subsequent cycles, the formed CeH2.51 gradually transforms into Ce–Al, and simultaneously the kinetics of the doped system is further enhanced. It is believed that the utilization of Ce-based nanoparticles as catalysts would substantially improve the practical applications of NaAlH4 for hydrogen storage.
✓ 已验证
产品关联
DOI
MATERIALS LETTERS
·
2015
·
IF 2.489
Haibo Duan,Jingjing Diao,Naru Zhao,Yijuan Ma
Hollow mesoporous bioactive glass microspheres (HMBGMs) were fabricated via a hydrothermal-assisted self-transformation method employing cetyltrimethyl ammonium bromide (CTAB) as a mesoporous template. The morphology, structure, particle size and specific surface area of HMBGMs were characterized by various methods. The results demonstrated that the solid BG spheres prepared in a Sto¨ber solution could spontaneously transform to hollow structure by incubating in hydrothermal condition. Meanwhile, the shell thickness of HMBGMs could be controlled by the hydrothermal time. In vitro drug release studies demonstrated that the HMBGMs exhibited a sustained release property. The obtained HMBGMs may have potential applications in drug delivery and bone tissue regeneration.
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2017
·
IF 2.589
K.Q. Song,Z.C. Lu,M. Zhu,R.Z. Hu,M.Q. Zeng
Nanocomposite Al–Sn-based bearing alloys produced by mechanical alloying (MA) exhibit high hardness; however, their poor sintering density and ductility limit their wide spread application. Here, we present a strategy to produce a dual-scale structure in an Al–Sn–Si alloy consisting of coarse and ultrafine grains through a combination of conventional powder sintering and thermomechanical treatment . We found that severe deformation and the presence of an Al–Si eutectic mixture for sample induced abnormal grain growth of Al to create the dual-scale Al–Sn–Si alloy through annealing treatment. An optimum matching of ductility and strength , and optimum wear performance were achieved at annealing temperatures of 500 and 550 °C. Detailed investigation of the wear mechanism revealed that the combination of high strength and high ductility provided by the dual-scale structure is a key factor for the improvement of the wear properties.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS & DESIGN
·
2016
·
IF 3.997
Yanjun Yin,Xueming Li,Yuanjie Shu,Xiaogang Guo,Yuhua Zhu,Xinyue Huang,Hebin Bao,Ke Xu
Al/CuO nanoenergetic materials with nanotube and nanorod morphologies were prepared and investigated in this study. The CuO nanotubes and nanorods synthesized by chemical etching are homogenous on a large scale, with an external diameter in the range of 100– 200 nm and typical lengths of 5– 7 μm. Each of these CuO nano-arrays was deposited on nano-Al by electrophoretic deposition . Using the Brunauer-Emmett-Teller method, the Al/CuO nanotube composite is determined to have a larger specific surface area (43.20 m 2 /g) than that of the Al/CuO nanorod composite (16.75 m 2 /g). The energy released from the Al/CuO nanotubes is approximately to 3264 J/g, which is higher than that released from the Al/CuO nanorods (2013 J/g). The combustion flames for the Al/CuO nanotubes are also more rapid and violent. It is speculated that the excellent output of energy and outstanding combustion performance of the Al/CuO nanotubes could be ascribed to their tubular architecture, which has a larger specific surface area enhances the intimate contact and mass transmission between fuel and oxide.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2017
·
IF 2.084
Yanjun Yin,Xueming Li,Yuanjie Shu,Xiaogang Guo,Hebin Bao,Wulin Li,Yuhua Zhu,Yu Li,Xinyue Huang
A novel porous Al/CuO nanothermite was successfully synthetized by utilizing the controllable electrophoretic deposition (EPD) method. The morphology and phase composition of the CuO and Al/CuO films were investigated in detail by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). When the pH of the solution was 2.0, the surface area of the Al/CuO film was able to reach 495.6 m 2 /g, which was much higher than that of films grown at pH 1.0, 3.0 or 4.0. Meanwhile, the combustion performance and energy outputs were coincident with the results mentioned above. At pH 2.0, bright flames were observed after ignition, and the released heat of the nanothermite reaction reached 3.49 kJ/g, exhibiting excellent combustion performance and enhanced energy output.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2016
·
IF 5.557
Kai Xu,Chenfang Yuan,Jürgen Caro,Aisheng Huang
In the present work, we report a new road to enhance the gas separation performances of the zeolite Na-LTA membrane by tuning the pore size of zeolite LTA through silver cation exchange. Through the functionalization of the alumina support by using 3-aminopropyltriethoxysilane (APTES), a thin, phase-pure and well intergrown zeolite Na-LTA membrane with a thickness of about 5.0 µm can be facilely prepared on the APTES-modified macroporous α-Al 2 O 3 tube. After a following silver exchange treatment of the as-synthesized zeolite Na-LTA membranes, the sodium ions in zeolite Na-LTA framework are replaced by silver ions , thus forming zeolite Ag-LTA membranes with a narrower pore diameter. The zeolite Ag-LTA membranes were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). It is found that both the morphology and structure of the zeolite Na-LTA membrane keep unchanged after silver-exchange, and no cracks, pinholes or other defects are observed in the membrane layer. The zeolite Ag-LTA membrane shows high hydrogen selectivity due to the reduction of pore size of the zeolite Ag-LTA. For the separation of the binary mixture at 50 °C and 2.0 bar, the separation factor of H 2 /C 3 H 8 is α≈120.8, which by far exceeds α≈19.4 of the starting Na-LTA membrane, and are also much higher than the separation factors previously reported for the H 2 /C 3 H 8 mixture on zeolite membranes.
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2016
·Vol. 6
·期 1
·1-10
·
IF 5.228
Zheng Guoqiang,Zhang Wenchao,Shen Ruiqi,Ye Jiahai,Qin Zhichun,Chao Yimin
Mn 2 O 3 has been selected to realize nanothermite membrane for the first time in the literature. Mn 2 O 3 /Al nanothermite has been synthesized by magnetron sputtering a layer of Al film onto three-dimensionally ordered macroporous (3DOM) Mn 2 O 3 skeleton. The energy release is significantly enhanced owing to the unusual 3DOM structure, which ensures Al and Mn 2 O 3 to integrate compactly in nanoscale and greatly increase effective contact area. The morphology and DSC curve of the nanothermite membrane have been investigated at various aluminizing times. At the optimized aluminizing time of 30 min, energy release reaches a maximum of 2.09 kJ∙g −1 , where the Al layer thickness plays a decisive role in the total energy release. This method possesses advantages of high compatibility with MEMS and can be applied to other nanothermite systems easily, which will make great contribution to little-known nanothermite research.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）