均匀沉淀法制备催化剂中PEG的作用?看文献制备方法如下:an aqueoussolution containing SnCl2·2H2O (SCRC, 98.0%), Mn(NO3)2(50 wt.%solution), Ti(SO4)2(SCRC, 96.0%), urea (SCRC, 99.0%) and polyethylene glycol (in the solution, Mn/Ti = 1:3, Sn/(Mn + Ti) = 1:10, molarratio) was gradually heated to 90?C and maintained at this tem-perature for 10 h with vigorous stirring. 其中不太明白加PEG的作用是什么呢?期待答疑解惑。查看更多2个回答 . 6人已关注