H.F.W.J. van Breukelen , G.J.C. Kraaijveld , L.J.M. van de Ven , J.W. de Haan , J.H.C. van Hooff
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引用次数: 12
摘要
采用定量31P - MAS NMR研究了CoAPO-5中钴的聚类。为了解释“核磁共振不可见”P的数量与钴含量的关系,至少由五个钴原子组成的簇必须存在于框架内。可能,属于一个簇的钴原子位于同一个孔的壁上。
The clustering of cobalt in CoAPO-5 is studied by means of quantitative 31P MAS NMR. To explain the amount of “NMR-invisible” P as function of the cobalt content, clusters consisting of at least five cobalt atoms have to be present inside the framework. Probably, cobalt atoms belonging to one cluster are situated in the wall of one and the same pore.