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in the field of environmental governance. Hence, a series of BiPO4/Fe(Ⅲ) materials were prepared via a hydrothermal method and impregnation. The experimental results indicated that normal organic dye......
metal calcium as a raw material. The protective coating on graphite was prepared by impregnation sintering method, and the effects of slurry viscosity, graphite density and coating thickness for coating......
NOx-assisted soot oxidation over K/CuCe catalyst翁端,李佳,吴晓东,司知蠢State Key Laboratory of New Ceramics & Fine Process, Department of Materials Science and Engineering, Tsinghua University摘 要:CeO2 and CuOx-CeO2 supported potassium catalysts were synthesized by wetness impregnation method. The catalysts were characterized by BET, NO-TPO, NOx-TPD and soot-TPO......
>) Abstract: Activated carbons were prepared from walnut shells by vacuum chemical activation. The effects of system pressure, activation temperature and impregnation ratio... condition. Vacuum condition is beneficial to develop microporous structure, and mesopore tends to be well developed at high impregnation ratio. The activated carbon prepared at system pressure of 30 kPa......
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: The low density C/C composites were modified by B and Si using reaction melt infiltration (RMI), chemical vapour deposition (CVD) and impregnation and in-situ reaction. The results show that the modified... by CVD changes in 0.20?0.36, while the composites modified by c-BN using impregnation and in-situ reaction hold the lowest friction coefficient, which is 0.10?0.20. The wear surfaces of the RMI-modified......
hydrothermal synthesis into a MCM-41 framework structure with La/Si molar ratios from 0.01 to 0.1. Samples of NiO supported on LaMCM-41 were prepared using the impregnation method. The catalyst performance...% at 250 ℃ under a pressure of 1.5 MPa and at an airspeed of 36,000 mL/(g·h). Compared with Ni-La/MCM-41(La/Si = 0.1) and Ni/MCM-41 prepared via the impregnation method, Ni/LaMCM-41(La/Si = 0.1) shows......
reaction at low temperature. The aim of the present study was to investigate the effect of:(i) different preparation methods(impregnation and coprecipitation) to obtain a modified ceria support,and(ii... activity(>90% CO conversion) in the temperature range 180-220 ℃,with a slightly better performance of the gold catalysts on supports prepared by impregnation. The decreased activity with increasing Y2......
hydrothermal synthesis into a MCM-41 framework structure with La/Si molar ratios from 0.01 to 0.1. Samples of NiO supported on LaMCM-41 were prepared using the impregnation method. The catalyst performance...% at 250 ℃ under a pressure of 1.5 MPa and at an airspeed of 36,000 mL/(g·h). Compared with Ni-La/MCM-41(La/Si = 0.1) and Ni/MCM-41 prepared via the impregnation method, Ni/LaMCM-41(La/Si = 0.1) shows......
reaction at low temperature. The aim of the present study was to investigate the effect of:(i) different preparation methods(impregnation and coprecipitation) to obtain a modified ceria support,and(ii... activity(>90% CO conversion) in the temperature range 180-220 ℃,with a slightly better performance of the gold catalysts on supports prepared by impregnation. The decreased activity with increasing Y2......
