Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5448839 | Materials Science and Engineering: B | 2017 | 7 Pages |
Abstract
Molybdenum nitride (MoNx) depositing on titanium nitride nanotube array (TiN NTA) was designed as MoNx/TiN NTA for supercapacitor electrode material. MoNx/TiN NTA was fabricated by electrodepositing molybdenum oxide onto titanium dioxide NTA and one-step nitridation treatment in ammonia. MoNx/TiN NTA involved top-surface layer of MoNx nanoparticles and underlying layer of TiN NTA, which contributed to electric double layer capacitance in aqueous lithium-ion electrolyte solution. The specific capacitance was increased from 69.05Â mFÂ cmâ2 for TiN NTA to 121.50Â mFÂ cmâ2 for MoNx/TiN NTA at 0.3Â mAÂ cmâ2, presenting the improved capacitance performance. MoNx exhibited the capacitance of 174.83Â FÂ gâ1 at 1.5Â AÂ gâ1 and slightly declined to 109.13Â FÂ gâ1 at 30Â AÂ gâ1, presenting high rate capability. MoNx/TiN NTA exhibited the capacitance retention ratio of 93.8% at 3.0Â mAÂ cmâ2 after 1000 cycles, presenting high cycling stability. MoNx/TiN NTA could act as a promising electrode material of supercapacitor.
Related Topics
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Authors
Yibing Xie, Fang Tian,