NiCo layered double hydroxide nanocages for high-performance asymmetric supercapacitors

Abstract

Herein, a well-designed NiCo layered double hydroxide (NiCo-LDH) nanocages are prepared with a simple Cu2O template etching method. Due to their unique hollow structures and synergistic effects, NiCo-LDH-1 (molar ratio...

In situ formation of CeO2 coupled with hollow NiCo-LDH nanosheets for efficient photocatalytic hydrogen evolution

“…3d) also shifts somewhat compared to CeO 2 . 36,37,49 In summary, the XPS data indicate that the CeO 2 , generated in situ on NiCo-LDH, has strong electronic interactions with it.…”

Synthesis of a (NiFe)9S8 nanorod array as a negative electrode for a high-performance hybrid supercapacitor

“…17,18 Until now, tremendous efforts have been devoted to the development of positive electrode materials, and a high specific capacitance (≥1500 F g −1 ) has been realized using partial Ni/Co-based nanomaterials. [19][20][21][22][23][24] On the contrary, research on negative electrode materials is relatively lagging and the capacitances of commercially used carbon-based negative electrodes are usually lower than 200 F g −1 , [25][26][27][28][29] which is the key obstacle that constraints the energy destiny of supercapacitor devices for further application. Therefore, the research and exploration of high-performance negative electrode materials are extremely needed to develop nextgeneration high energy-density supercapacitors.…”

Rational Design of NiCo-borate/GO Heterojunction as a High-Performance Supercapacitor Electrode

“…However, the low energy density (ED) and high cost of current supercapacitors significantly hinder their development and application. One of the key factors affecting ED is the performance of electrode materials. , Therefore, rational design of electrode materials is an effective approach to improving the ED of supercapacitors. Due to the high theoretical capacity of nickel-based materials and their advantages such as thermal stability, chemical stability, low cost, and environmental friendliness in various electrolytes, they can serve as potential pseudocapacitive electrode materials. , However, the poor conductivity of a single nickel-based material and its volume change during cycling hinder its further development and application in supercapacitors.…”

“…One of the key factors affecting ED is the performance of electrode materials. 2,3 Therefore, rational design of electrode materials is an effective approach to improving the ED of supercapacitors. Due to the high theoretical capacity of nickel-based materials and their advantages such as thermal stability, chemical stability, low cost, and environmental friendliness in various electrolytes, they can serve as potential pseudocapacitive electrode materials.…”