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1Synthesis and modification of well-ordered layered cathode oxide LiNi_(2/3)Mn_(1/3)O_2显示文摘Oxalic-acid-based co-precipitation method was employed to prepare LiNi2/3Mn1/3O2 sample with a high-ordered structure. Li+,Ni2+ and Mn2+ acetates were used as starting materials. The influence of the amount of lithium source in the starting materials on Li+ content,disorder of Li+-Ni2+ ions,and electrochemical performance has been investigated. Rietveld refinement shows that the sample prepared with 20% excess Li-source in the starting materials exhibits a perfect ordered structure. A specific discharge capacity is as high as 172 mAh/g at C/20 in the voltage range of 4.35?2.7 V. However,the cyclability is not satisfactory:about 25.3% fade in capacity was observed over 50 cycles. Chemically stable SiO2 was coated on the surface of LiNi2/3Mn1/3O2 particles. A significant improvement in cyclability was attained with 3 wt% SiO2 coating,which is ascribable to the protection of LiNi2/3Mn1/3O2 particles from being dissolved into the electrolyte.XIONG XiaoQin JIANG Yan XIA ShengAn ZHANG WuXing Yuan LiXia LIU ShanTang HUANG YunHui 2010Chinese Science Bulletin2010,55,30:5
2Facile synthesis of perfect ZnSn(OH)6 octahedral microcrystallines with controlled size and high sensing performance towards ethanol显示文摘Shaoming SHU Chao WANG Shantang LIU 2018Frontiers of Materials Science2018,12,2:3
3Pr-doped ln203 nanocubes induce oxygen vacancies for enhancing triethylamine gas-sensing performance显示文摘Nanocubes derived from pure In2O3 and xPr-In2O3 (x= 1, 2, 3 and 5 mol.%) were synthesized using a facile hydrothermal method, followed by calcination. The morphological and structural characterization demonstrated that as-synthesized samples presented regular cubes that decreased in size with the increase of the Pr doping. The data showed that the sensing performances of sensors based on In203 were notably improved after the Pr doping. Among them, the sensor based on 2 mol.% Pr-In2O3 had the best sensing performance towards the triethylamine (TEA) gas, including a high response (RaIRg = 260 to 100 ppm TEA gas, which is about 12 times higher than that of the sensor based on pure In2O3), a short response time (2s), and a low detection limit (0.2 ppm) at 350℃. The mechanism responsible for the enhancement of sensing performance was attributed to the improvement of the vacancy content of 2 mol.% Pr-ln203, which promoted the oxidation—reduction reaction with the TEA gas that occurred on the materials surface.Chao WANG Wu WANG Ke HE Shantang LIU 2019Frontiers of Materials Science2019,13,2:2
4Covalently Bound Benzyl Ligand Promotes Selective Palladium‐Catalyzed Oxidative Esterification of Aldehydes with Alcohols显示文摘ChaoLiu ShanTang LiweiZheng DongLiu HengZhang AiwenLei 2012Angew Chem Int Ed2012,,23:1
5Kinetics of Cerium ( IV ) Extraction from H2SO4-HF Medium with Cyanex923显示文摘Liao Wuping Yu Guihong Yue Shantang 2002Talanta2002,56,61:1
6Comparison of three‐dimensional hysterosalpingo‐contrast‐sonography and diagnostic laparoscopy with chromopertubation in the assessment of tubal patency for the investigation of subfertility显示文摘Carina C. W.Chan Ernest H. Y.Ng Oi‐ShanTang Karen K. L.Chan Pak‐ChungHo 2005Acta Obstetricia et Gynecologica Scandinavica2005,,9:1
7On-board production of hydrogen for fuel cells over Cu/ZnO/A1203 catalyts coating in micro-chemical reactor显示文摘Yu Xinhai Tu Shantang Wang Zhendong 0,,:1
8THE MASS TRANSFER BEHAVIORS OF FE(Ⅲ), CO(Ⅱ) AND NI(Ⅱ) IN SULFURIC ACID WITH CYANEX302 BY USINGMICROPOROUS HOLLOW FIBER显示文摘In this paper the mass transfer behaviors of Fe(Ⅲ), Co(Ⅱ) and Ni(Ⅱ) with Cyanex302(bis(2,4,4- trimethylpentyl)monothiophosphinic acid) from sulfate medium by using hollow fiber membrane in counter-currently circulating operation were studied. The effect of acidity in aqueous solution and the extractant concentration on the mass transfer coefficient (Kw) was discussed. The reaction mechanism of membrane extraction was considered as a false one series reaCtion and the rate controlling step was membrane resistance. When the value of Kw arrived at 1.0 × 10-6 m/s, △pH:CoFe equaled tO 6.225, and △pH:NiFe was bigger than △p HCoFe.Luo Fang, Yue Shantang, Li Deqian and Wu Yonglie (Laboratory of Rare Earth Chemistry and Physics, Changchun Instittue of Applied Chemistry, Chinese Academy of sciences, Changchun 130022) 2000化工学报2000,51,S1:0
9KINETICS OF YTTERBIUM ION EXTRACTION BY CA-12 AT THE LIQUID-LIQUID INTERFACE显示文摘The mass-transfer kinetics of ytterbium between aqueous solutions and heptane solutions of CA- 12 and CA-12-HEHEHP have been studied by using a constant interfacial area cell with laminar flow. The results have been interpreted according to a series of reversible interfacial reactions. In this work, it has been discovered that HEHEHP can increase the rate of ytterbium extraction by CA-12.Yue Shantang, Luo Fang, Yu Guihong, Li Deqian and Su Qiang (Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applid Chemistry Chinese Academy of Science, Changchun 130022) 2000化工学报2000,51,S1:0
10Facile synthesis of Ni-doped SnO_(2) nanorods and their high gas sensitivity to isopropanol显示文摘In this work,pure SnO_(2) and Ni-doped SnO_(2) nanorods were synthesized through a one-step template-free hydrothermal method and then used to detect isopropanol.Sensors fabricated with the Ni-doped SnO_(2) nanocomposites showed the best gas sensing performance when the Ni doping amount was 1.5 mol.%.The response reached 250 at 225℃,which was approximately 8.3 times higher than that of the pure SnO_(2) nanorods.The limit of detection for isopropanol was as low as 10 ppb at the optimum working temperature.In addition,it also displayed good selectivity and excellent reproducibility.It is believed that the enhanced isopropanol sensing behavior benefit from the increased oxygen defects and larger specific surface area by Ni doping.Yanqiu YU Shantang LIU 2022Frontiers of Materials Science2022,16,1:0
11Synthesis of hierarchical shell-core SnO2 microspheres and their gas sensing properties显示文摘Using SnSO4,D-glucose,urea and water,hierarchical shell-core SnO2 microspheres were successfully synthesized via a simple hydrothermal method.The characte rization results showed that the sizes of asprepared SnO2 microspheres were 0,6-1μm,with shell thicknesses of 4060 nm,The shell and large core of the SnO2 microspheres were all comprised of the same basic rice-like nanoparticles with diameters of 16-25 nm and lengths of 16-45 nm.Further investigaton showed that the glucose and urea served as structural guiding agents,and urea facilitated the formation of the hierarchical structure.The as-prepared SnO2 nanomaterials were used to fabricate a gas sensor with an electrode blade used for the gas sensitivity tests,The hierarchical shell-core SnO2 microspheres exhibited high sensitivity and selectivity toward ethanol,with a responsivity of 63.8 for 50 ppm ethanol at 250℃,while the response and recovery time were 7 s and 28 s,respectively.Moreover,the responsivity of the materials showed good linearity at ethanol concentrations from 500 ppb to 10 ppm.The simple synthetic method,environmentally-friendly raw materials,and excellent gas sensitivity demonstrate that the as-prepared SnO2 nanomaterial has great potential applications for the sensing of ethanol gas.Li Zheng Wenjie Bi Zhao Jin Shantang Liu 2020Chinese Chemical Letters2020,31,8:0
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