Growth of carbon dioxide whiskers

Authors :: Chin Li Cheung
Avinash Kumar Both
Source :: RSC Advances. 9:23780-23784
Publication Year :: 2019
Publisher :: Royal Society of Chemistry (RSC), 2019.
Abstract: We report the growth of carbon dioxide (CO2) whiskers at low temperatures (−70 °C to −65 °C) and moderate pressure (4.4 to 1.0 bar). Their axial growth was assessed by optical video analysis. The identities of these whiskers were confirmed as CO2 solids by Raman spectroscopy. A vapor–solid growth mechanism was proposed based on the influence of the relative humidity on the growth.