منابع مشابه
Metal incorporation into nanoporous carbon
Nanoporous carbon films were deposited by 248 nm pulsed laser ablation of a graphite target in different background pressures of argon (PAr). The morphology changed from smooth, high-density amorphous carbon films at PAr = 20 mTorr to ultra-low density nanoporous material at PAr = 380 mTorr. Subsequently, the nanostructural, chemical and electrical properties of metal containing nanoporous carb...
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24 Naturally-occurring mackinawite (tetragonal FeS) with incorporated transition metals 25 is an important precursor to the formation of metal sulfides in ore deposits, but experimental 26 results have not been sufficient to establish clear trends in the structure and stability of the 27 transition-metal-enriched mineral. Using density functional theory with dispersion 28 corrections, we report...
متن کاملSelective incorporation of functional dicarboxylates into zinc metal-organic frameworks.
Zinc(II) nitrate reacts with different ratios of 1,4-benzenedicarboxylic acid (H(2)bdc) and 2-halo-1,4-benzenedicarboxylic acid (H(2)bdc-X, X = Br or I) to give [Zn(4)O(bdc)(3-x)(bdc-X)(x)], in which preferential incorporation of bdc is observed. The selective incorporation is related to crystal growth rates, and the proportion of incorporated bdc-X rises with increasing reaction time.
متن کاملThe incorporation of citrate carbon into fatty acids.
Long-chain fatty acids are synthesized from citrate in an undialyzed soluble enzyme system from pigeon liver at a rate comparable to that observed when acetate is used as a precursor. The first enzymic step for citrate incorporation is probably its breakdown to acetyl-CoA and oxaloacetate catalyzed by the citrate~cleavage enzyme. Experiments with variously labeled citrate show good incorporatio...
متن کاملIncorporation of sulfur into hydrogenated amorphous carbon films
Amorphous hydrogenated carbon–sulfur thin films (a-C:H:S) were deposited from CH yH S gas mixtures by capacitively4 2 coupled radio-frequency PECVD. X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS) were used to probe the composition of the films. XPS showed that the sulfur atomic percentage within a film was proportional to the fraction of H S in the H SyCH gas ...
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ژورنال
عنوان ژورنال: MRS Proceedings
سال: 2005
ISSN: 0272-9172,1946-4274
DOI: 10.1557/proc-876-r10.3