A Reduction-Pyrolysis-Catalysis Synthesis of Diamond

Abstract

Diamond powder was synthesized through a metallic reduction-pyrolysis-catalysis route with the reaction of carbon tetrachloride and sodium at 700 degreesC, in which the sodium was used as reductant and flux. This temperature is much lower than that of traditional methods. The x-ray powder diffraction patterns showed three strong peaks of diamond. The Raman spectrum showed a sharp peak at 1332 inverse centimeters, which is characteristic of diamond. Although the yield was only 2 percent, this method is a simple means of forming diamond.

Kaposi's Sarcoma-Associated Herpesvirus-Encoded LANA Contributes to Viral Latent Replication by Activating Phosphorylation of Survivin

“…Further, KSHV genome copies were dependent on the expression of survivin and the modification of histone acetylation. Previous studies have shown that survivin has different levels of expression during cell cycle phases in cancer cells (69,70). Therefore, we postulated that the expression of LANA, AK-B, and survivin may have an impact on KSHV genome copies in a cell cycle-dependent manner.…”

China’s achievements in field of nanotechnologyv

“…В частно-сти, при температуре 300°C был получен кристалл нитрида галлия размером 30 нм. Группа иссле-дователей так же создала экономически эффек-тивный метод каталитического пиролиза алмаз-ного порошка [7]. Посредством реакции, локали-зованной в нанотрубке, группа исследователей из Университета Цинхуа создала "одномерную" нанопроволоку нитрида галлия, которая имеет диаметр от 4 до 50 нм и длину до 25 мм [8].…”

Solvothermal Synthesis of Non‐Oxide Nanomaterials

“…Employing a Wurtz-type reaction coupling alkyl halides with excess metal sodium as both reductant and flux, fine carbon powders containing a trace amount of diamond (yield @ 2%) ( Figure 7.14(c)) were synthesized via a reduction-pyrolysis-catalysis route by reacting CCl 4 with metallic sodium at 700 C [53]. This temperature is much lower than that of traditional methods.…”