Structural Breathing of Graphite Oxide Pressurized in Basic and Acidic Solutions.

Abstract

This is an accepted version of a paper published in Journal of Physical Chemistry Letters. This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.Citation for the published paper: Talyzin, A., Sundqvist, B., Szabó, T., Dmitriev, V. (2011 RECEIVED DATE ABSTRACTGraphite oxide immersed in excess of basic or acidic water media was studied using synchrotron X-ray diffraction at high pressure using diamond anvil cells. The lattice spacing of graphite oxide in excess of NaOH solution increases by the enormous value of 85% at 1.6 GPa. In contrast, structure expansion of graphite oxide immersed in liquid water with added HCl is significantly less pronounced compared to compression in pure water. The point of media solidification correlated with sharp decrease of graphite oxide layers separation due to partial withdrawal of water from the structure. Therefore, pressure induced structural breathing of graphite oxide due to insertion/desertion of water into/from interlayer

Pressure-induced shear and interlayer expansion in Ti 3 C 2 MXene in the presence of water

“…S1 shows the formation of ice VI, and that at 3 GPa in fig. S2 shows the transformation to ice VII ( 21 ). We note that because of the use of fine powders, the crystallization process may occur at higher pressures than the phase diagram of pure water indicates ( 3 ).…”

Pressure‐Induced Water Insertion in Synthetic Clays

“…Similarly, well defined step-like insertion of additional solvent monolayer is observed at certain pressure for Na-Hect immersed in water and shows no correlation with media solidification. It should be noted that GO compression in water results in gradual lattice expansion and in aqueous solutions it shows behavior similar to osmotic swelling of clay minerals [3,10] .…”

Exactly matched pore size for the intercalation of electrolyte ions determined using the tunable swelling of graphite oxide in supercapacitor electrodes

“…water and acetonitrile). [21][22][23] Moreover, the sizes of slit pores provided by the interlayers of GO are "flexible" as they depend on the nature of the solvent along with the sizes of intercalated ions/molecules. 2,[24][25][26][27][28] Graphite/graphene oxides are commonly produced via the strong oxidation of graphite (e.g., using the Brodie or Hummers methods 29,30 ) and inherit the layered structure of pristine graphite.…”