A highly oriented and densely packed Co–Al layered double hydroxides (LDHs) nanosheets thin-film electrode has been successfully fabricated by drying a transparent colloidal suspension of Co–Al LDHs nanosheets on a pretreated indium tin oxide-coated glass plate substrate. The electrochemical investigations show that this thin-film electrode has good supercapacitor behavior with a high specific capacitance of up to , a good electrochemical stability, and a high-rate capability. These excellent electrochemical properties obtained can be attributed to the special microstructure of the thin-film electrode. This thin-film electrode may be a potential electrode for thin-film supercapacitors.
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Wang et al. (2007) studied this question.
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