Back back Cover: Chemical Weathering of Alumina in Aqueous Suspension at Ambient Pressure: A Mechanistic Study

The Front Cover depicts the degradation of transition aluminas used as supports for heterogeneous catalysis in heated aqueous suspensions. In their Full Paper, J. Abi Aad etal. demonstrate that all transition aluminas (from [gamma] to [theta]-Al2O3) transform into Al(OH)3 polymorphs (bayerite, gibbsite, and nordstrandite) to different extents. The nature of the main polymorph is a function of aluminium concentration and ageing time. More information can be found in the Full Paper by J. Abi Aad etal. on page2186 in Issue 12, 2017 (DOI: 10.1002/cctc.201700145).