例句與用法

1. a rapid and simple method, stearic acid method was also developed to prepare nanostructured tio2 composites . microstructure of the samples was investigated by xrd, ft-ir, tem and bet specific surface area measurement and the results were compared with those obtained by conventional sol-gel method . it was found that nanocrystalline powders with good dispersity, high crystallinity and large specific surface area were successfully prepared by stearic acid method
   采用硬脂酸法快速、方便地制備了微結(jié)構(gòu)可控的al_2o_3、sno_2復(fù)合納米tio_2，并與sol-gel法產(chǎn)物相比較，xrd、ft-ir、tem結(jié)果表明：硬脂酸法制備的復(fù)合納米tio_2表面貧羥基，具有良好的分散性、更高的比表面積，且可通過改變復(fù)合量對摘要博士論文產(chǎn)物晶型和粒徑進行控制。
2. the structures and characteristics of several graphite samples are measured by means of powder x-ray diffraction ( xrd ), brunauer-emmer-teller ( bet ) surface area measurement, inductively coupled plasma ( icp ) spectroscopy, particle size analysis and electrochemical measurements . the effects of origin, structure, impurity, particle size, specific surface area of carbon materials on the electrochemical characteristics are studied . a synthetic graphite with abundant resources, low cost and favorable performance is determined as the raw material for modification of graphite
   采用xrd、bet、icp、激光粒徑分析及電化學(xué)性能測試等方法，對國內(nèi)外多種典型石墨樣品的結(jié)構(gòu)與性能進行比較，研究石墨材料的來源、晶體結(jié)構(gòu)、雜質(zhì)含量、顆粒大小、比表面積等因素對其充放電性能的影響，確定一種性能較好、價格低廉、來源廣泛的普通人造石墨粉作為熱處理與摻雜改性、以及復(fù)合結(jié)構(gòu)炭材料研究的原材料。