Heat capacities and thermodynamic functions of hexagonal ice from T=0.5K to T=38K

Size-dependence of the heat capacity and thermodynamic properties of hematite (α-Fe2O3)

“…Included in this figure are plots of water on the surface of TiO 2 , as well as the heat capacity of solid ice [66][67][68][69]. In this figure ''outer water" on TiO 2 refers to the heat capacity of samples with the highest degree of hydration: TiO 2 Á 0.677H 2 O for anatase and TiO 2 Á 0.361H 2 O for rutile.…”

“…Plot of heat capacity against temperature to show the comparison of the heat capacity of surface H 2 O on 13 nm hematite (d) to the outer layers on nanocrystalline rutile ( ) and anatase (j) TiO 2[38] as well as hexagonal ice ( )[69] at temperatures below 10 K.…”

“…Plot of heat capacity against temperature to show the comparison of the heat capacity of surface H 2 O on 13 nm hematite (d) to the outer layers on nanocrystalline rutile ( ) and anatase (j) TiO 2[38] as well as hexagonal ice ( )[66][67][68][69]. Open inverted triangles (5) represent the inner water on rutile while the open squares (h) represent inner water on anatase.…”

Phase Behaviour of Ices and Hydrates

“…At ambient pressure, the specific heat capacity of ice Ih (Giauque and Stout 1936;Smith et al 2007) has been determined from 0.5-270 K and the thermal conductivity has been measured over a similar range (Slack 1980;Andersson et al 1980). Measurements of the thermal conductivity for the high-pressure ice phases (e.g.…”

Heat capacity studies of the iron oxyhydroxides akaganéite (β-FeOOH) and lepidocrocite (γ-FeOOH)

“…With such a diverse and complex collection of polymorphs, it can be difficult to predict and understand which phases form under specified conditions [8][9][10]. Recently, thermodynamic studies have begun to focus on the iron oxyhydroxides, seeking to understand their relative stability and reactivity [9,[11][12][13][14][15][16][17][18]. Goethite has been well studied through heat capacity and enthalpy measurements, and has been characterized as the most stable of the iron oxyhydroxide polymorphs.…”