期刊
MATERIALS LETTERS
卷 188, 期 -, 页码 1-4出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.09.051
关键词
NiO; Nanoparticles; Microstructure; Metal-organic framework; Supercapacitors
资金
- NSFC [51272176, 51502206, 51572194]
- Key Project of Tianjin Natural Science Foundation [14JCZDJC32200]
- LPMT
- CAEP [KF14006]
- Academic Innovation Funding of Tianjin Normal University [52XC1404]
Porous NiO architecture has been successfully prepared by calcining a novel Ni-MOF in air. As revealed by XRD, SEM and TEM, the obtained NiO architecture is assembled from two-dimensional nanosheets, which primarily consist of uniform nanoparticles and large quantities of pores between nanoparticles. Electrochemical data present that the NiO architecture possesses a reversible specific capacitance of 324 F g(-1) after 1000 cycles at 1 A g(-1), and nearly 46% capacity retention when the current density increases from 1 to 40 A g(-1), suggesting its promising application in supercapacitors.
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