期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 40, 页码 16836-16841出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta04268a
关键词
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资金
- Natural Science Foundation for Distinguished Young Scientists of Jiangsu Province, the Hong Kong [BK2012008]
- Macao and Taiwan Science & Technology Cooperation Program of China [2012DFH50120]
- National Natural Science Foundation of China [21373263, 11204350, 51303204]
- National Basic Research Program of China [2010CB934700]
- External Cooperation Program of BIC, Chinese Academy of Sciences [121E32KYSB20130009]
Here we report a novel electrochemical actuator using a hierarchically architectured nanostructure electrode. Vertically aligned NiO nanowall arrays, which act as an interface layer, are in situ grown on a freestanding graphene-carbon nanotube hybrid film. The large specific surface area and fast ion transmission channels of this nanostructured array interface enable us to achieve large deformation in quick switching response (18.4 mm per 0.05 s), high strain and stress rates (8.31% s(-1), 12.16 MPa s(-1)) and excellent durability upon 500 000 times continuous operations in air.
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