3D nickel-cobalt double hydroxides nanosheets in situ grown on nitrogen-containing activated carbon for high-performance electrode materials

Electrochemical Deposition Enables Freestanding CoNi Layered Double Hydroxide/MnOX Electrode with Enhanced Electrochemical Properties for Asymmetric Supercapacitors

“…Even at a high power density of 3199 W kg −1 , the ASC still achieves a high energy density of 15.96 Wh kg −1 . The energy density and power density for our ASC are much higher than other previously reported results in the literature, as shown in Figure f.…”

Controllable Morphology of Sea-Urchin-like Nickel–Cobalt Carbonate Hydroxide as a Supercapacitor Electrode with Battery-like Behavior

“…Many research efforts have been devoted to the nickel–cobalt complex due to high theoretical specific capacitance values, low cost, and long life cycles . Numerous attempts have been made to synthesize the nickel–cobalt complex such as direct oxidation and reduction, sol–gel method, electrodeposition, spraying process, chemical vapor deposition, and hydrothermal process . The hydrothermal process is an efficient way to create a new class material of metal oxide with the defined morphologies.…”

“…24 Numerous attempts have been made to synthesize the nickel−cobalt complex such as direct oxidation and reduction, 25 sol−gel method, 24 electrodeposition, 26 spraying process, 27 chemical vapor deposition, 28 and hydrothermal process. 29 The hydrothermal process is an efficient way to create a new class material of metal oxide with the defined morphologies. Supercritical water formed under high pressure provides an excellent reaction environment for the crystal-lization of metal oxide particles.…”