【摘要】 本文报导了最近试制的一种高分子钼铁硫络合物固氮催化剂的研究成果。这种催化剂对乙炔加氫还原成乙烯反应的初速度是1.3摩尔/摩尔·分。与同类型固载化催化剂——葡聚糖凝胶一半胱氨酸钼络合物的初速度相近。实验表明,在催化反应过程中,它的活性组分不易脱落,循环使用时仍有较高的活性。初步测定了催化剂组成与活性之间的关系,它与固氮酶活性组分的元素组成是一致的。这些实验结果,对于在理论上进一步研究生物固氮机理和在工业生产上寻找一个适用的固氮催化剂,都是颇有裨益的。更多还原

【Abstract】 A new catalyst for nitrogen fixation has been prepared. This catalyst may be regarded as a cluster of molybdenum and iron bonded to a poly-vinylpyridine carrier. ’The initial rate of acetylene on the new catalyst is l.3mol/mol.min and as high as the same type complex catalyst of dextrin-supported molybdenum-cysteine. This catalyst is so stable that there appears only a little decrease in activity upon repeated use. The relationship of catalystic activity with elementary composition has been tabuleted, which implies the role of the components of the nitrogenase active center. The results mentioned above are helpful for understanding the mechanism of nitrogen fixation.更多还原