Microcrystal X-ray diffraction and MAS NMR studies of zeolties
نویسندگان
چکیده
منابع مشابه
X-ray absorption and diffraction studies
We have produced assemblies of FePt nanoparticles using high temperature solution phase synthesis and polymer-mediated layer-by-layer deposition allowing precise control of the particle self-assembly. The as-deposited particles have a narrow size distribution offering the potential for use as ultra-high density magnetic storage media and ultimately storage of one bit per individual nanoparticle...
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In the present paper are described experiments with synthetic polysaccharides prepared with muscle, heart, and liver phosphorylase. As judged by solubility properties and iodine colorations, the muscle enzyme synthesizes a polysaccharide in vitro which resembles plant starches, while the heart and liver enzymes synthesize a polysaccharide which resembles glycogen (1). It will be shown below tha...
متن کاملX-ray Diffraction Studies of Synthetic Polysaccharides*
In the present paper are described experiments with synthetic polysaccharides prepared with muscle, heart, and liver phosphorylase. As judged by solubility properties and iodine colorations, the muscle enzyme synthesizes a polysaccharide in vitro which resembles plant starches, while the heart and liver enzymes synthesize a polysaccharide which resembles glycogen (1). It will be shown below tha...
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X-ray diffraction studies confirm that, with few exceptions, each skeletal element of echtinoderms is a single crystal of magnesium-rich calcite and that a relation exists between the shape of the element and the crystallographic a- and c-axes. The exceptions incluide the teeth of echinoids, and the calcareous ring as well as the anal teeth of holothurians. The tubercles of an echinoid plate be...
متن کاملNMR and X-ray Diffraction Studies of Phases in the Destabilized LiH-Si System
Hydrogen absorption and desorption isotherms have been measured on ballmilled mixtures of LiH+Si powders to evaluate the thermodynamic parameters of these reversible reactions. The phase compositions at the various stages of reaction have been examined by Magic Angle Spinning-Nuclear Magnetic Resonance (MAS-NMR) of the Li, H, and Si nuclei and powder x-ray diffraction (XRD). The initial mixture...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2005
ISSN: 0108-7673
DOI: 10.1107/s0108767305096753