Facile synthesis of Ni-coated Ni2P for supercapacitor applications

摘要: Ni2P particles are coated homogenously with amorphous Ni by an electroless plating process. The coating exhibits a nanoflake morphology and has 20–30 nm in thickness after for 10 min. As electrochemical capacitor materials, the pseudocapacitor behaviors investigated cyclic voltammograms galvanostatic charge–discharge tests 2 M LiOH. Ni-coated delivers high specific capacitances of 581 F g−1 at 1 A 464 40 g−1, respectively, also superior cycling performance. capacitance can achieve maximum 1115 which still maintain 1029 (92.3% capacity retention) 3000 cycles. enhanced pseudocapacitive performances mainly attributed to its flake-like provide fast ion electron transfer large amounts active sites.