NiCoP Nanoarray: A Superior Pseudocapacitor Electrode with High Areal Capacitance (pages 4435–4441)
Menglai Kong, Zao Wang, Weiyi Wang, Min Ma, Danni Liu, Shuai Hao, Prof. Rongmei Kong, Prof. Gu Du, Prof. Abdullah M. Asiri, Prof. Yadong Yao and Prof. Xuping Sun
Version of Record online: 15 MAR 2017 | DOI: 10.1002/chem.201700017
NiCoP nanoarray on nickel foam behaves as a superior 3D pseudocapacitor electrode, delivering a high areal capacitance of 9.2 F cm−2 at a current density of 2 mA cm−2 with good rate capability and cycling stability. Its combination with AC leads to an asymmetric supercapacitor with an energy density of 1.16 mWh cm−2 at a power density of 1.6 mW cm−2. This device can light six LED bulbs and split water to hydrogen and oxygen using a NiCoP nanoarray-based two-electrode alkaline water electrolyzer.