Structural and electrochemical characterization of α-MoO3 nanorod-based electrochemical energy storage devices

synthesis of high‐quality crystalline α‐MoO3 nanobelts

“…To date, α-MoO 3 has been reported with different morphologies including nanowires [19][20][21], nanotubes [22,23], nanoplates [24], nanorods [10,[25][26][27] and nanobelts [11,28]. Among them, belt-like nanostructured α-MoO 3 has attracted particular interest due to its single-crystalline nature that is believed to possess special characteristics over bulk crystals.…”

“…Molybdenum trioxide (MoO 3 ) is one of the most important layered materials and n-type metal oxide semiconductors, MoO 3 nanomaterials have drawn increasing attention because of their unique properties in many fields such as photochromic and electrochromic devices [1][2][3][4][5][6][7][8][9], energy storage [10][11][12][13][14], gas sensors [15,16] and catalysis [17,18]. Generally, MoO 3 is found to have mainly three crystalline polymorphs, orthorhombic MoO 3 (α-MoO 3 ), monoclinic MoO 3 (β-MoO 3 ) and hexagonal MoO3 (h-MoO 3 ), in which α-MoO 3 is the thermodynamically stable phase with layer structure and has been intensively studied.…”

Template-mediated growth of microsphere, microbelt and nanorod α-MoO3 structures and their high pseudo-capacitances

“…It needs to be point out that the specific capacitance of α-MoO 3 nanorod is much higher than those of the reported α-MoO 3 nanorod or nanowire by 2-4 times. [41][42][43] The energy densities of these α-MoO 3 are calculated by E =0.5C(∆V) 2 and the energy densities of various electrodes at different current densities are given in Fig.7c.The energy densities at a current density of 0.1A g -1 are 53.7 Wh kg -1 for α-MoO 3 microsphere, 30.1Wh kg -1 for α-MoO 3 microbelt and 68.5 Wh kg -1 for α-MoO 3 nanorod, respectively, suggesting that these α-MoO 3 are promising electrode materials for supercapacitor application. The cycling life test over 1000 cycles was carried out at a current density of 1A g -1 .…”

Tuning the structure of MoO3nanoplates via MoS2oxidation

“…Nevertheless, MoO 3 was mostly synthesized by hydrothermal method [2,4] and evaporation of MoO 3 powders [3,5,6]. The size of the obtained MoO 3 crystallites is usually at the micrometre scales, and further mechanical exfoliation is needed to prepare nanometre-thick MoO 3 nanosheets.…”