Construction of Cu3Mo2O9 nanoplates with excellent lithium storage properties based on a pH-dependent dimensional changeElectronic supplementary information (ESI) available: Preparation, instruments, XRD patterns, BET, EDS, WDXRF, and XPS profiles. See DOI: 10.1039/c5dt01645b

One-, two- and three-dimensional nanostructures of copper molybdenum oxide hydroxide were successfully constructed by a simple approach through a pH-dependent dimensional transformation of ammonium copper molybdate. Thin nanoplates of copper molybdate, which were obtained by sintering the two-dimensional nanobelts of copper molybdenum oxide hydroxide, exhibited remarkably high reversible lithium storage capacity, good rate capability and excellent cycling stability. 1D, 2D and 3D nanostructures of CMOHs were successfully constructed through a pH-dependent dimensional transformation of ACM.