Morphology evolution of urchin-like NiCo2O4 nanostructures and their applications as psuedocapacitors and photoelectrochemical cells, Qiufan Wang, Bin Liu, Xianfu Wang, Sihan Ran, Liming Wang, Di Chen*, and Guozhen Shen, J. Mater. Chem., 2012, 22, 21647-21653.
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