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Three-Dimensional MoS2 Nanodot-Impregnated Nickel Foam Electrodes for High-Performance Supercapacitor Applications.
ACS Omega ( IF 3.7 ) Pub Date : 2020-05-15 , DOI: 10.1021/acsomega.0c01045
Akhil M Abraham 1 , Sunil P Lonkar 2 , Vishnu V Pillai 2 , Saeed M Alhassan 2
ACS Omega ( IF 3.7 ) Pub Date : 2020-05-15 , DOI: 10.1021/acsomega.0c01045
Akhil M Abraham 1 , Sunil P Lonkar 2 , Vishnu V Pillai 2 , Saeed M Alhassan 2
Affiliation
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An economical and binder-free electrode was fabricated by impregnation of sub-5 nm MoS2 nanodots (MoS2 NDs) onto a three-dimensional (3D) nickel substrate using the facile dip-coating method. The MoS2 NDs were successfully synthesized by controlled bath sonication of highly crystalline MoS2 nanosheets. The as-fabricated high-surface area electrode demonstrated promising electrochemical properties. It was observed that the as-synthesized NDs outperformed the layered MoS2 peers as the electrode for supercapacitors. MoS2 NDs exhibited an excellent specific capacitance (Csp) of 395 F/g at a current load of 1.5 A/g in a three-electrode configuration. In addition, the fabricated symmetric supercapacitor demonstrated a Csp value of 122 F/g at 1 A/g and a cyclic performance of 86% over 1000 cycles with a gravimetric power and energy density of 10,000 W/kg and 22 W h/kg, respectively. Owing to its simple and efficient fabrication and high surface area, such 3D electrodes show high promise for various energy storage devices.
中文翻译:
用于高性能超级电容器应用的三维MoS2纳米点浸渍镍泡沫电极。
使用便捷的浸涂法,通过将亚5 nm MoS 2纳米点(MoS 2 NDs)浸渍到三维(3D)镍基板上,制造了一种经济,无粘结剂的电极。通过高度结晶的MoS 2纳米片的受控浴超声处理,成功合成了MoS 2 ND 。所制造的高表面积电极表现出良好的电化学性能。观察到,作为超级电容器的电极,合成后的ND优于分层的MoS 2对等体。MoS 2 NDs具有出色的比电容(C sp)在三电极配置下在1.5 A / g的电流负载下为395 F / g)。此外,所制造的对称超级电容器在1 A / g时表现出122 sp / g的C sp值,在1000次循环中的循环性能为86%,重量功率和能量密度分别为10,000 W / kg和22 W h / kg , 分别。由于其简单有效的制造和高表面积,此类3D电极对各种储能设备显示出很高的希望。
更新日期:2020-05-15
中文翻译:

用于高性能超级电容器应用的三维MoS2纳米点浸渍镍泡沫电极。
使用便捷的浸涂法,通过将亚5 nm MoS 2纳米点(MoS 2 NDs)浸渍到三维(3D)镍基板上,制造了一种经济,无粘结剂的电极。通过高度结晶的MoS 2纳米片的受控浴超声处理,成功合成了MoS 2 ND 。所制造的高表面积电极表现出良好的电化学性能。观察到,作为超级电容器的电极,合成后的ND优于分层的MoS 2对等体。MoS 2 NDs具有出色的比电容(C sp)在三电极配置下在1.5 A / g的电流负载下为395 F / g)。此外,所制造的对称超级电容器在1 A / g时表现出122 sp / g的C sp值,在1000次循环中的循环性能为86%,重量功率和能量密度分别为10,000 W / kg和22 W h / kg , 分别。由于其简单有效的制造和高表面积,此类3D电极对各种储能设备显示出很高的希望。