Three dimensional bimetallic phosphides nanoneedle arrays as electrode materials for symmetric all-solid-state supercapacitor
Three dimensional bimetallic phosphides nanoneedle arrays as electrode materials for symmetric all-solid-state supercapacitor
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三维双金属磷化物纳米针阵列作为对称全固态超级电容器电极材料
DOI：
10.1016/j.jallcom.2019.02.023
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发表时间：
2019-05
影响因子：
6.2
通讯作者：
Xiang Jianyong
中科院分区：
文献类型：
--
作者：
Mu Congpu;Song Jiefang;Zhang Yan;Liu Lixuan;Wang Bochong;Xiang Jianyong
由于可穿戴电子设备的快速发展，具有薄、轻、柔等特点的储能设备备受关注。采用单模微波和热退火结合低温磷化的方法，成功地制备了碳布负载双金属磷化物纳米针阵列杂化材料。为了评价其作为超级电容器电极材料的性能，在1 摩尔KOH溶液中，用三电极体系对所有样品的电化学性能进行了测试。结果表明，适量的Ni替代可以改善NixCo1-xPynanone针阵列作超级电容器电极的电化学性能。循环伏安、恒电流充放电曲线、比电容和电化学阻抗谱表明，NiCo2Pynanone电极阵列作为超级电容器的电极材料具有良好的电化学性能。以碳布支撑的NiCo2Pynananone针阵列为电极，组装了一种对称全固态超级电容器。组装后的对称全固态超级电容器具有良好的电化学性能，在10 mV/S的扫描速度下，比电容达到236.2 F/g。在3 V/S的扫描速度下，NiCo2Py具有良好的循环稳定性，15000次循环后，初始电容的保持率为87.13%。这表明NiCo2针阵列/碳布杂化材料是一种很有潜力的全固态超级电容器电极材料。
Because of the rapid development of wearable electronic devices, energy storage devices with thin, lightweight and flexible have attracted much attention. Hybrid materials consisting of bimetallic phosphides nanoneedle arrays supporting on carbon cloth are successfully synthesized by a single-mode microwave and thermal annealing treatment followed by a low temperature phosphorization. For evaluating as electrode materials of supercapacitor, electrochemical performances of all samples are manipulated by a three-electrode system in 1 mol KOH solution. The results indicate that appropriate amount of Ni substitution could improve the electrochemical performance of NixCo1-xPynanoneedle arrays as electrode of supercapacitor. Cyclic voltammetry, Galvanostatic charge/discharge curve, specific capacitance and electrochemical impedance spectroscopy display that NiCo2Pynanoneedle arrays as electrode materials of supercapacitor exhibits excellent electrochemical performance. A symmetric all-solid-state supercapacitor is assembled via using NiCo2Pynanoneedle arrays supported on carbon cloth as electrodes. The as-assembled symmetric all-solid-state supercapacitors exhibit an excellent electrochemical performance with a specific capacitance of 236.2 F/g at a scan rate of 10 mV/s. Good cycling stability of NiCo2Pyhas been demonstrated and 87.13% of the initial capacitance can be remained after 15000 cycles under a scan rate 3 V/s. This result indicates that NiCo2Pynanoneedle arrays/Carbon cloth hybrids are a good potential candidate as electrode materials for all-solid-state supercapacitor.
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影响因子：
6.6
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
6.2
作者：
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通讯作者：
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