|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Cu–Co–O nano-catalysts as a burn rate modifier for composite solid propellants显示文摘Nano-catalysts containing copper–cobalt oxides(Cu–Co–O) have been synthesized by the citric acid(CA) complexing method. Copper(II) nitrate and Cobalt(II) nitrate were employed in different molar ratios as the starting reactants to prepare three types of nano-catalysts. Well crystalline nano-catalysts were produced after a period of 3 hours by the calcination of CA–Cu–Co–O precursors at 550 °C. The phase morphologies and crystal composition of synthesized nano-catalysts were examined using Scanning Electron Microscope(SEM), Energy Dispersive Spectroscopy(EDS) and Fourier Transform Infrared Spectroscopy(FTIR) methods. The particle size of nano-catalysts was observed in the range of 90 nm–200 nm. The prepared nano-catalysts were used to formulate propellant samples of various compositions which showed high reactivity toward the combustion of HTPB/AP-based composite solid propellants. The catalytic effects on the decomposition of propellant samples were found to be significant at higher temperatures. The combustion characteristics of composite solid propellants were significantly improved by the incorporation of nano-catalysts. Out of the three catalysts studied in the present work, Cu Co-I was found to be the better catalyst in regard to thermal decomposition and burning nature of composite solid propellants. The improved performance of composite solid propellant can be attributed to the high crystallinity, low agglomeration and lowering the decomposition temperature of oxidizer by the addition of Cu Co-I nano-catalyst. | D. Chaitanya Kumar RAO Narendra YADAV Puran Chandra JOSHI | 2016 | Defence Technology(防务技术)2016，12，4： | 3 |
| 2 | Catalytic effects of Cu-Co~* on the thermal decomposition of AN and AN/KDN based green oxidizer and propellant samples显示文摘This paper presents the catalytic effects of Cu-Co~* catalyst on the decomposition of AN and AN/KDN based oxidizer and propellant samples. Ozawa-Flynn-Wall(OFW) iso-conversional method was used for the kinetic studies and to compute the activation energy(Ea) values for various decomposition steps of the prepared oxidizer and propellant samples in the temperature range of 50 e500C. TG-DTG experiments were carried out for both oxidizer and propellant samples at the heating rates of 3, 5, and 10C/min. AN/KDN based oxidizer samples were prepared by an evaporative co-crystallization method. Citric acid sol-gel method was used for the synthesis of Cu-Co~* catalyst. The propellant sample contains HTPB as the fuel binder along with other ingredients such as TDI, DOA, and Glycerol. The Cu-Co~* catalyst was used as 2% by weight to the total weight of catalyzed oxidizer and propellant samples. It was observed from the present study that, Cu-Co~* catalyst helps in reducing the Ea values for AN and AN based propellant samples. However, with the percentage increment of KDN in the AN crystals, Ea value increases.Further, it was observed that Cu-Co~* catalyst stabilizes the initial partial decomposition of KDN. | Pratim Kumar Puran Chandra Joshi Rajiv Kumar Shelly Biswas | 2018 | Defence Technology(防务技术)2018，14，3： | 2 |
| 3 | Rapid and specific liquid chromatographic tandem mass spectrometric determination of tenofovir in human plasnm and its fragmentation study 显示文摘 | MANISH Y TULSIDAS M PURAN SINGHAL | 2009 | J Chromatogr Sci2009，47，2： | 1 |
| 4 | Molecular and immunological characterization of a major envelope of capripoxvirus显示文摘 | Chand Puran | 1992 | PHD University of surrey1992，，： | 1 |
| 5 | Scrub typhus in Dar- jeeling, India: opportunities for simple, practical prevention measures 显示文摘 | Puran K Sharma R R amakrishnana YJF | 2009 | Transactions of the Royal Soeiety of Tropical Medieine and Hy- giene2009，103，： | 1 |
| 6 | Isotopic effect in extended X-ray absorption fine structure of germanium显示文摘 | PURANS J AFIFY N D DALBA G | 2008 | Phys Ray Lett2008，100，05： | 1 |
| 7 | Magnetically separable core - shell ironoxide@ nickel nanoparticles as high performance recy- clable catalysts for chemo selective reduction of nitroaro- matics 显示文摘 | Rathore Puran Singh | 2015 | Catalysis Science & Technology 5 (1) 286 - 2952015，，： | 1 |
| 8 | X-ray diffraction extended X-ray absorption fine structure and Raman spectroscopy studies of WO3 powders and(1-x) WO3-y xReO2 mixtures显示文摘 | KUZMIN A PURANS J CAZZANEIU E | 1998 | Journal of Applied Physics1998，15，： | 1 |
| 9 | Prevention of Oxidative Stress-Induced Retinal Pigment Epithelial Cell Death by the PPAR γ Agonist, 15-Deoxy-Delta 12, 14-Prostaglandin J 2显示文摘 | Jason Y. Chang Puran S. Bora Nalini S. Bora Suofu Qin | 2008 | PPAR Research2008，，： | 1 |
| 10 | The role of complement in ocular pathology显示文摘 | Nalini S. Bora Purushottam Jha Puran S. Bora | 2008 | Seminars in Immunopathology2008，，2： | 1 |
| 11 | X-ray absorption study of Ce-Ti oxide films 显示文摘 | Purans J Azens A Granqvist C G | 2001 | Electrochimica Acta2001，46，： | 1 |
| 12 | The role of complement system in ocular diseases including uveitis and macular degeneration显示文摘 | Purushottam Jha Puran S. Bora Nalini S. Bora | 2007 | Molecular Immunology2007，，16： | 1 |
| 13 | Local atomic and electronic structure of tungsten ions in AWO4 crystals of scheelite and wolframite types显示文摘 | KUZMIN A PURANS J | 2001 | Radiat Measure2001，33，5： | 1 |
| 14 | Suppression of complement regulatory proteins (CRPs) exacerbates experimental autoimmune anterior uveitis (EAAU) 显示文摘 | WANG YL KAPLAN H J PURAN S | 2006 | J Immunol2006，177，12： | 1 |
| 15 | Fatty acid ethyl esters:potentially toxic products of myocardial ethanol metabolism显示文摘 | MARY E B PURAN S B | | 0，，： | 1 |
| 16 | Various Silver Nanostructures on Sapphire Using Plasmon Self-Assembly and Dewetting of Thin Films显示文摘Silver(Ag) nanostructures demonstrate outstanding optical, electrical, magnetic, and catalytic properties and are utilized in photonic, energy, sensors, and biomedical devices.The target application and the performance can be inherently tuned by control of configuration, shape, and size of Ag nanostructures. In this work, we demonstrate the systematical fabrication of various configurations of Ag nanostructures on sapphire(0001) by controlling the Ag deposition thickness at different annealing environments in a plasma ion coater. In particular, the evolution of Ag particles(between 2 and 20 nm),irregular nanoclusters(between 30 and 60 nm), and nanocluster networks(between 80 and 200 nm) are found be depended on the thickness of Ag thin film. The results were systematically analyzed and explained based on the solid-state dewetting,surface diffusion, Volmer–Weber growth model, coalescence,and surface energy minimization mechanism. The growth behavior of Ag nanostructures is remarkably differentiated at higher annealing temperature(750 ℃) due to the sublimation and temperature-dependent characteristic of dewetting process.In addition, Raman and reflectance spectra analyses reveal that optical properties of Ag nanostructures depend on their morphology. | Sundar Kunwar Mao Sui Quanzhen Zhang Puran Pandey Ming-Yu Li Jihoon Lee | 2017 | Nano-Micro Letters2017，9，2： | 1 |
| 17 | Chromatographic separation of ( E )- and ( Z )-isomers of entacapone and their simultaneous quantitation in human plasma by LC–ESI-MS/MS显示文摘 | Manish Yadav Pramod Dixit Vikas Trivedi Abhishek Gandhi Arvind Senger Swati Guttikar Puran Singhal Pranav S. Shrivastav | 2009 | Journal of Chromatography B2009，，5： | 1 |
| 18 | Microfibres,microfilaments and theirapplications显示文摘 | Purane S V Panigrahi N R | 2007 | AUTEX Res J2007，7，3： | 1 |
| 19 | Suppression of Complement Regulatory Proteins (CRPs) Exacerbates Experimental Autoimmune Anterior Uveitis (EAAU)显示文摘 | Wang Y L Kaplan H J Puran S | 2006 | J Immunol2006，177，12： | 1 |
| 20 | Scrub typhus in Darjeeling,India:opportunities for simple,practical prevention measures显示文摘 | Puran K Sharma R Ramakrishnana YJF | | 0，，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员