binary catalyst meaning in English

二元催化剂

However the binary catalysts system favors low residue content . it was found that the residue content were remained at a low level with ethylene glycol as the reaction media and 6 % ( by mass ) of sulfuric acid as the catalyst in the presence of phenol . the contents of lipophilic products were investigated
经凝胶色谱法测定表明，以浓硫酸苯酚为催化剂、乙二醇为反应介质的反应体系，所得到液化产物的平均相对分子质量最低， m _ w为806 ， m _ n为799 。
It was indicated that the yield and quality of swnts were affected obviously by the catalyst involved . after a lot of contrastive experiments , we found that binary catalyst is more active than unitary catalyst on the synthesis of swnts . the content of the elements have great effects on the final product , and the best catalyst in our experiments is fe / co / mo / al2o3 with the mixture ratio of 0 . 9 / 01 / 0 . 25 / 10 ( mole ratio )
在进行了一系列对比实验后发现，相对于一元催化剂，二元催化剂具有更好的对单壁碳管的催化活性，且催化剂中各成分的含量对产物的最终形态有十分重要的影响，本论文在实验的基础上得出的最优化催化剂是： fe co mo al _ 2o _ 3的配比为0 . 9 01 0 . 25 10 (摩尔比) 。