Phase and morphology evolution of CoAl LDH nanosheets towards advanced supercapacitor applications

Abstract

Al-Based LDH materials have been considered as promising active electrode materials for pseudocapacitors due to their structural tunability.

NiMoCo layered double hydroxides for electrocatalyst and supercapacitor electrode

“…8f. A maximum energy density of 141 W h kg −1 at a power density of 2695 W kg −1 is obtained, which are superior to some previous reports [45][46][47][48][49][50].…”

Controlled preparation of multiple mesoporous CoAl-LDHs nanosheets for the high performance of NOx detection at room temperature

“…Moreover, no other diffraction peaks were observed in XRD, thus demonstrating the high purity of the prepared samples. 27 According to the Bragg's equation, the interlayer spacing (d003 ¼ 0.767 nm) obtained from the diffraction peak of (003) illustrated that there were larger spaces in CoAl-LDHs, which would accommodate more gas molecules 28 and would be helpful for improving the sensitivity of materials.…”

Newly Design Porous/Sponge Red Phosphorus@Graphene and Highly Conductive Ni2P Electrode for Asymmetric Solid State Supercapacitive Device With Excellent Performance

“…In recent years, the use of portable electronic devices, including smart phones and laptops, has been considered a desirable approach to the advancement of human life [1,2]. However, an increasing world population and an increasing demand for essential needs may lead to a future energy crisis [1][2][3][4]. To overcome such a challenge, many studies have been conducted to develop novel energy storage devices, including lithium ion batteries, sodium ion batteries, and supercapacitors [1][2][3][4][5].…”

“…However, an increasing world population and an increasing demand for essential needs may lead to a future energy crisis [1][2][3][4]. To overcome such a challenge, many studies have been conducted to develop novel energy storage devices, including lithium ion batteries, sodium ion batteries, and supercapacitors [1][2][3][4][5]. Owing to their higher power densities, fast charge/discharge rates, and longer life span, supercapacitors, which bridge the gap between physical capacitors and batteries, are considered to be promising energy storage devices [6][7][8].…”

“…To obtain supercapacitors with enhanced performance, researchers are devoted to developing/engineering metal oxide, sulfide, and hydroxide nanoparticles, as well as carbonaceous materials that are more suited to and efficient for use in supercapacitors [5,[7][8][9]. Even though numerous studies have been performed to develop high energy and power density supercapacitors controlled by a capacitive electrode, a number of challenges still exist [2][3][4]. The hybrid supercapacitor electrode-based concept, which combines a battery-type and a capacitor-type electrode to achieve high energy and power densities, has been proposed [6][7][8].…”