共搜索到9042条信息，每页显示10条信息，共905页。用时：0小时0分0秒583毫秒
Influence of Composition of Sm2O3-Containing Rare Earth Glass on Its Absorption Spectrum Meng Xianfeng1,Wang Tingwei1,Zhang Qitu1,Shan Xiaobing1,Xu Zhongzi1 (1.College of Materials Science... and rare earth content on absorption spectra was examined and discussed. With increasing Sm2O3 content, the intensity of characteristic absorption peak is increased and the absorption peak is broadened......
Study on Visible Photoluminescence and Absorption Spectra of Fergusonite Group Minerals XUE Li-hui1,GONG Wei-liang2 (1.Research and Test Center of Materials,Wuhan University of Technology,Wuhan 430070,China;2.Institute of Geochemistry, Chinese Acodemy of Sciences, Guiyang 550002, China) Abstract:Visible photoluminescence and absorption spectra of the metamict and annealing-recrystallized......
the observation that there is an optimum visible-light absorption for higher hydrogen rate. 4 Conclusions 1) K2La2Ti3O10 has higher photocatalytic activity for hydrogen production when being calcined... and characterized by X-ray diffractometry, UV-Vis diffuse reflectance and X-ray photoelectron spectroscopy. The influence of the calcination atmosphere on the photocatalytic reactivity of K2La2Ti3O10 for hydrogen......
LaNi4.7Al0.3 图2 LaNi4.7Al0.3循环次数与吸氢量的关系曲线 Fig.2 Changes of hydrogen absorption capacity of LaNi4.7Al0.3 during hydriding-dehydriding cycling 由图1可见, LaNi4.7Al0.3合金被CO毒化后平台压升高, 平台变短, 倾... Fig.4 Changes of hydrogen absorption capacity of MlNi4.5Al0.5 during hydriding-dehydriding cycling 由图3可见MlNi4.5Al0.5合金被CO毒化后平台压升高, 平台倾斜加剧, 平台宽度缩小, 吸氢量减小. 由图4可见, MlNi4.5Al0.5合金在纯氢中循环30次左右, 吸......
Thermal stability and oil absorption of aluminum hydroxide treated by dry modification with different modifiers ZHOU Xiang-yang(周向阳)1, LI Chang-lin(李昌林)1, HUO Deng-wei(霍登伟)1, 2, LI Jie(李 劼)1, WU...; Abstract: The thermal stability, particle size and morphology and oil absorption of aluminum hydroxide(ATH) treated by dry modification with three different modifiers......
Mechanical properties and energy absorption properties of aluminum foam-filled square tubes ZHANG Chun-ji (张春基), FENG Yi(凤 仪), ZHANG Xue-bin(张学斌) Department of Materials Science and Engineering...; Abstract: Longitudinal and transverse mechanical properties and energy absorption properties of foam-filled square......
J. Cent. South Univ. Technol. (2011) 18: 1299-1303 DOI: 10.1007/s11771-011-0836-x Effect of absorption boundary layer on nonlinear flow in low permeability porous media WANG Xue-wu(王学武)1, 2, YANG... that the percolation curve of ultra-low rocks is nonlinear, and apparent permeability is not a constant which increases with pressure gradient. The absorption boundary layer decreases with the increase of pressure......
; catalysts; reversibilities; hydrogen release; LiAlH4; [全文内容正在添加中] ......
absorption content decreases with increasing Mo content. Key words: TiCr-based hydrogen storage alloys; pressure-composition-temperature (PCT); hydrogen storage performances 随着氢能应用的日益推广...TiCrMo三元合金相图上的分布示意图见图4. 图4 273K时TiCr1.8-xMox合金的最大吸氢量在Ti-Cr-Mo三元组分图上的分布 Fig.4 Distribution of maximum hydrogen absorption content of TiCr1.8-xMox alloys on ternary phase diagram at 273K......
visible-light photocatalytic performance were studied, using anatase, rutile and mixing crystalline TiO2 as photocatalysts. The results indicate that the absorption of H2O2 on TiO2 surface to form active species extends the light absorption range of TiO2 into the visible light region. Fluorescence spectrum analysis indicates that the ?OH radical free from rutile TiO2 surface can be constantly......
