期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 15, 期 15, 页码 5684-5690出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cp50248a
关键词
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资金
- National Natural Science Foundation of China [11204308, 11174287, 10974204, 50931002]
- Hundred Talent Program of Chinese Academy of Sciences
We designed a new strategy, namely, the laser ablation of a target material in an aqueous ionic solution, to prepare Mn-doped Ni(OH)(2) nanosheets based on reactions between the pulsed laser-induced plasma plume of Mn and the surrounding NiCl2 solution. The crystalline phase, morphology and structure of the as-derived products are characterised by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Results indicate the hierarchical assembly of numerous tiny nanosheet building blocks into a Mn-doped alpha-Ni(OH)(2) spherical structure. Importantly, the positive electrode made of Mn-doped alpha-Ni(OH)(2) nanosheets exhibits a high specific capacitance of similar to 1000 F g(-1) under a current density of 5 A g(-1), concurrently possessing excellent cycling ability. This novel strategy may offer researchers an alternative for designing interesting solid targets and ionic solutions towards the fabrication of other new nanostructures for fundamental research and potential applications.
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