1126-34-7Relevant articles and documents
Silicon nanowire arrays - A new catalyst for the reduction of nitrobenzene derivatives
Xu, Yajun,Wang, Lei,Jiang, Wenwen,Wang, Hongwei,Yao, Jianlin,Guo, Qinghua,Yuan, Lin,Chen, Hong
, p. 3788 - 3793 (2013)
Silicon nanowire arrays (SiNWAs) are under extensive investigation for solar cells and biomedical applications. This study reports for the first time that hydrogen fluoride-treated (H)-SiNWAs are an efficient catalyst for the reduction of nitrobenzene derivatives. We show that SiNWAs, after hydrogen fluoride treatment, have a high catalytic activity in p-nitrophenol (PNP) reduction. The conversion rate of PNP by H-SiNWAs increases with time and is almost complete within 30 min, which thus indicates catalytic activity comparable to that of platinum nanoparticles. The catalytic activity of SiNWAs is closely related to the chemical composition and specific morphology of the surface. Si-H bonds on the surface are essential for activity, and arrays with longer nanowires showed a higher catalytic activity. Moreover, the activity can be easily regenerated by hydrogen fluoride treatment. It was also found that H-SiNWAs exhibit a similar catalytic activity for the reduction of other nitrobenzene derivatives such as p-nitroaniline and sodium m- nitrobenzenesulfonate. It is concluded that H-SiNWAs may be considered as an environmentally friendly alternative to noble-metal-based catalysts for the reduction of nitrobenzene derivatives. No need to be noble: Hydrogen fluoride-treated silicon nanowire arrays (H-SiNWAs) are an efficient, recyclable catalyst for the chemical reduction of nitrobenzene derivatives. The activity of H-SiNWAs is because of the presence of Si-H bonds and the length of the nanowires. Copyright
CERAMIDE GALACTOSYLTRANSFERASE INHIBITORS FOR THE TREATMENT OF DISEASE
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Paragraph 00382; 00383, (2018/07/29)
Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with the enzyme ceramide galactosyltransferase (CGT), such as, for example, lysosomal storage diseases. Examples of lysosomal storage diseases include, for example, Krabbe disease and Metachromatic Leukodystrophy.
A facile approach of preparing nickel nanoparticles on porous silicon surface and its catalytic activities on reducing of nitroaromatics
Liu, Xiang,Cheng, Heming
, p. 263 - 267 (2014/07/08)
A facile approach of preparing nickel nanoparticles (Ni NPs) on porous silicon (PSi) surface and the catalysis towards reduction of nitroaromatics are depicted in this work in detail. When the PSi chip was immersed in the mixture of 40 % ammonium fluoride and 0.02 M nickel sulfate solutions with volume ratio of 1:1 at 60°C for 15 min, a large number of Ni NPs were generated on PSi surface, which exhibited high catalytic activities on reducing nitro groups of aromatics in the presence of sodium borohydride at ambient temperature. A suggested mechanism of Ni NPs generation on PSi surface was put forward according to theoretical and experimental analyses. The resultant Ni NPs on PSi surface were demonstrated with scanning electron microscopy and the reducing reactions are monitored with ultraviolet-visible spectroscopy.
