先驱物 meaning in English
precursor
Examples
- As the increasing of calcinating temperature , crystallite size of co3o4 is reduced , while that of licoo2 increased and furthermore , there is less defects in the crystal structure
Licoo _ 2样品的晶粒大小、颗粒大小和团聚情况等微结构因素与先驱物co _ 3o _ 4存在一定的继承性。 - The intrinsic chemical reaction rate constant was insensitive to the precursor and the calcinations history of cao , but the product layer diffusivity was affected by these two factors in the initial stage and decreased to a constant value with increasing conversion of cao
化学反应速率常数不受氧化钙的先驱物与其锻烧程序所影响，但产物层扩散系数在初始阶段则受到上述两因素的影响，并随著氧化钙的转化而减少至一定值。 - Through the synthesis of licoo2 by using non - water dispersant and two - step roasting , influences of microstructures of precursor , the roasting temperature and the reaction time on the electrochemical properties of licoo2 were studied . it indicated that co3o4 with nano - crystalline have very good electrochemical property , and can shorten solid reaction time
02的制备工艺，考察了不同微结构的co30 ;先驱物，焙烧温度和焙烧时间等工艺条件对licoo ，电化学性能的影响，其中以纳米晶co3o ;制备出的licooz表现出优良电化学性能，且大大缩短了反应时间。 - In order to solve the problem of conglomeration of the nanoparticle and make the nanoparticle disperse evenly in the coatings . in this way , we could succeed in improving the effect of modification . we originally put forward the in - situ sythesising nanoparticle method to modify coatings . through this method , we made use of the technology of the wet chemical method and added the precursor of nanoparticle during the preparation of coatings
在此基础上，为解决纳米粉体的团聚问题，使纳米粒子在涂料中有效分散与附聚，以实现纳米粒子改性的有效性，原创性地提出了原位生成纳米粒子改性涂料制备工艺的新思路：利用湿化学方法制备纳米材料的技术，在常规涂料制备的过程中加入所需引入纳米粒子的先驱物，直接在颜填料微粒的表面原位合成相应的纳米粒子。 - The phase transitions , microstructure variations and the sintering process in this reaction was intensively studied and the preparation method of licoo2 was optimized to improve its electrochemical performance . investigations on the phase transitions , crystal structure and microstructure changes in synthesis reaction of licoo2 indicate that li2o - li2co3 low - temperature eutectic containing li2co3 formed at 200 and then liyco3 - xo4 was created by the diffusion into the inner of co3o4 crystallite
本论文从反应机理和微结构变化入手，研究了以li _ 2co _ 3与co _ 3o _ 4为先驱物制备licoo _ 2反应过程的相变，微结构变化和烧结过程，优化了licoo _ 2的制备工艺，改善了licoo _ 2的电化学性能。