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961.
Guangfeng Wang Aixia Gu Wen Wang Yan Wei Jingjing Wu Guozhong Wang Xiaojun Zhang Bin Fang 《Electrochemistry communications》2009,11(3):631-634
This communication reports on a novel amperometric hydrazine sensor of CuO nanoarray based on a Cu substrate. Copper oxide nanoarray was directly grown on Cu substrates using a one-step facile hydrothermal method and was characterized using scanning electron microscopy and X-ray powder diffraction. The electrochemical study has shown that the CuO nanoarray exhibits higher catalytic effect on the hydrazine than the normal CuO nanoparticles. This may be attributed to the special structure of the nanomaterials esp. the substrate of the electric Cu. And the amperometric response showed that the CuO nanoarray modified glassy carbon electrode has a low detection and a high sensitivity for hydrazine. 相似文献
962.
Jing Han Jin Mao Chen Xiao Wen Zhou Yuan Lin Jing Bo Zhang Jian Guang Jia 《中国化学快报》2008,19(8):1004-1007
The screen-printed nanoporous TiO2 thin film was employed to fabricate dye-sensitized solid-state solar cells using CuI as hole-transport materials. The solar cell based on nanoporous TiO2 thin film with large pores formed by the addition of polystyrene balls with diameter of 200 nm to the TiO2 paste exhibits photovoltaic performance enhancement, which is attributed to the good contact of CuI with surface of dye-sensitized thin film due to easy penetration of CuI in the film with large pores. 相似文献
963.
964.
Jianhui Wang Tao Liu Dr. Guotao Wu Dr. Wen Li Yongfeng Liu Dr. C. Moysés Araújo Dr. Ralph H. Scheicher Dr. Andreas Blomqvist Rajeev Ahuja Prof. Zhitao Xiong Dr. Ping Yang Dr. Mingxia Gao Dr. Hongge Pan Prof. Ping Chen Prof. 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2009,121(32):5942-5946
965.
966.
The key intermediate (2S, 3R)-2-citronellyl-6-methylene-heptan-2,3,7-triol (8) of analogues of zoapatanol was synthesized in seven steps from the chiral synthon 2. The absolute configuration of the new chiral centre in compounds 5a-8 was identified as S by Mukaiyama's method. 相似文献
967.
Synthesis and decoloration capacity of well-defined and PMMA-grafted palygorskite nanocomposites 总被引:1,自引:0,他引:1
Structurally well-defined PMMA-grafted palygorskite nanoparticles were prepared by modifying the surface of palygorskite nanoparticles with initiators for reverse atom transfer radical polymerization (reverse ATRP) and by using these initiator-modified nanoparticles as macroinitiators. Reverse ATRP from palygorskite nanoparticles was then performed to attach well-defined polymer on to an inorganic core. It has been found that the dispersibility of palygorskite particles in organic solvents is significantly improved by grafting polymers onto the surface of palygorskite particles. The polymer-grafted palygorskite nanoparticles possess excellent decoloration capacity in organic solvents. 相似文献
968.
含三唑与噻二唑Schiff碱的合成与植物激素活性研究 总被引:2,自引:0,他引:2
合成了10种三氮唑与噻二唑的新Schiff碱,讨论了它们的物理性质、UV、IR、1HNMR和元素分析.生物活性测试发现了一些化合物具有优良的植物激素活性,其中噻二唑的Schiff碱具有优良的生长素活性,而三唑的Schiff碱具有好的细胞分裂素活性和优异的生根性能. 相似文献
969.
The construction and performance characteristics of an ion-selective electrode for fentanyl-drug cation, based on an ion-pair complex with tetrakis[3,5-bis-(trifluoromethyl)phenyl]borate anion in a PVC matrix were studied. A linear response for 1 x 10(-5) mol dm-3 to 1 x 10(-2) mol dm-3 drug with a slope of 57.9 +/- 0.5 mV/decade was established. The optimum pH range was 2 to 6. The lower detection limit was 6.29 x 10(-6) mol dm-3 fentanyl citrate (2.1165 micrograms cm-3 fentanyl). There were negligible interferences from a number of inorganic cations, structural analogues, and some common drug additives in injections. The electrode proposed has been successfully applied to determine fentanyl citrate in injections. The results correlated well with those obtained by the United States Pharmacopoeia standard procedure. 相似文献
970.
The principle of step-scan Fourier transform infrared (FTIR) spectroscopy is introduced. Double modulation step-scan FTIR technique is used to obtain the quantum cascade laser's stacked emission spectra in the time domain. Optical property and thermal accumulation of devices due to large drive current are analyzed. 相似文献