Nickel-cobalt layered double hydroxide anchored zinc oxide nanowires grown on carbon fiber cloth for high-performance flexible pseudocapacitive energy storage devices
Type
ArticleKAUST Department
Physical Science and Engineering (PSE) DivisionDate
2014-05Permanent link to this record
http://hdl.handle.net/10754/563519
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Nickel-cobalt layered double hydroxide (Ni-Co LDH) nanoflakes-ZnO nanowires hybrid array has been directly synthesized on a carbon cloth substrate by a facile cost-effective two-step hydrothermal route. As electrode materials for flexible pseudocapacitors, Ni-Co LDH nanoflakes-ZnO nanowires hybrid array exhibits a significantly enhanced specific capacitance of 1927 Fg-1, which is a ∼1.8 time greater than pristine Ni-Co LDH nanoflakes. The synthesized Ni-Co LDH nanoflakes-ZnO nanowires hybrid array shows a maximum energy density of 45.55 Whkg-1 at a power density of 46.15 kWkg -1, which is 35% higher than the pristine Ni-Co LDH nanoflakes electrode. Moreover, Ni-Co LDH nanoflakes-ZnO nanowires hybrid array exhibit excellent excellent rate capability (80.3% capacity retention at 30 Ag -1) and cycling stability (only 3.98% loss after 3000 cycles), due to the significantly improved faradaic redox reaction. © 2014 Elsevier Ltd.Citation
Shakir, I., Shahid, M., Rana, U. A., Nashef, I. M. A., & Hussain, R. (2014). Nickel–Cobalt Layered Double Hydroxide Anchored Zinc Oxide Nanowires grown on Carbon Fiber Cloth for High-Performance Flexible Pseudocapacitive Energy Storage Devices. Electrochimica Acta, 129, 28–32. doi:10.1016/j.electacta.2014.02.082Sponsors
The authors would like extend their sincere appreciation to the Research Centre, College of Engineering, King Saud University for funding this research through the Project no. 20/434.Publisher
Elsevier BVJournal
Electrochimica Actaae974a485f413a2113503eed53cd6c53
10.1016/j.electacta.2014.02.082