The oil transesterification catalysts include usually used acid-base catalyst, solid base, lipase, iodine, metal complex, et al.
油脂酯交换催化剂有:常用酸碱催化剂、酶、固体碱、碘、金属配合物等。
2
The price of proton exchange membrane fuel cell, for example, could be lowing down by developing new catalyst, solid polymer electrolyte and bipolar plate.