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The use of mild hydrothermal methods to synthesize vanadium oxides is reviewed, with particular emphasis on those with layer and 3-dimensional structures. A wide range of studies has been performed predominantly in the past decade to grow new materials that might have interesting electrochemical and magnetic properties. Most emphasis has been placed on vanadium oxides that contain organic species or simple cations such as the alkali metals, alkaline earths, zinc and copper. The key parameters determining the structures formed are reviewed, including pH and the organic structure-directing ion. Some initial electrochemical studies are described.