Alternating Voltage Introduced NiCo Double Hydroxide Layered Nanoflakes for an Asymmetric Supercapacitor

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• 作者：Mingjun Jing ; Hongshuai Hou ; Craig E. Banks ; Yingchang Yang ; Yan Zhang ; Xiaobo Ji
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：October 21, 2015
• 年：2015
• 卷：7
• 期：41
• 页码：22741-22744
• 全文大小：368K
• ISSN：1944-8252

文摘

An electrochemical alternating voltage approach of producing NiCo double hydroxide (NiCoDH) layered ultrathin nanoflakes with large specific surface area (355.8 m² g^鈥?), remarkable specific capacitance and rate capability is presented. The obtained NiCoDH as anode for asymmetric supercapacitors shows excellent energy density of 17.5 Wh kg^鈥? at high power density of 10.5 kW kg^鈥? and cycling stability (91.2% after 10鈥?00 cycles).