Growth of nickel (111) plane: The key role in nickel for further improving the electrochemical property of hexagonal nickel hydroxide-nickel & reduced graphene oxide composite

Improved energy density of quasi-solid-state supercapacitors using sandwich-type redox-active gel polymer electrolytes

“…As a result, high power density can be obtained, but energy density is relatively low, which limits the practical application of EDLCs. An approach to increase the energy density of EDLCs is to assemble pseudocapacitors, in which the electrode materials can be made by adding electrochemically active materials to carbon-based electrodes or completely replacing the carbon materials with electrochemically active materials, for example, transition metal oxides/hydroxides, metal chalcogenides and conducting polymers [1,[10][11][12][13][14][15][16][17][18]. The production of pseudocapacitance is ascribed to fast and reversible redox reaction, electrochemical doping/ dedoping and adsorption/desorption processes on the electrochemically active electrode materials.…”

Fabrication of an interferon-gamma-based ITO detector for latent tuberculosis diagnosis with high stability and lower cost

“…Besides, peaks at 1726, 1622, 1385, and 1052 cm −1 were corresponded to C=O, C=C, C-OH, and C-O-C vibration frequency, respectively. These new peaks suggested that graphite had been already oxidized to GO [16,33,35]. However, the FTIR spectrum of Gr showed that the intensities of peaks corresponding to various oxygen-containing functional groups were largely decreased, demonstrating that GO was successfully reduced to rGO [16,35].…”

“…These new peaks suggested that graphite had been already oxidized to GO [16,33,35]. However, the FTIR spectrum of Gr showed that the intensities of peaks corresponding to various oxygen-containing functional groups were largely decreased, demonstrating that GO was successfully reduced to rGO [16,35]. In the spectrum of Gr-Chit film, there are two characteristic bands peaking at 1625 and 1575 cm −1 , corresponding to C=O stretching vibration of -NHCO-and N-H bending of -NH 2 , respectively, demonstrating Gr-Chit had been triumphantly obtained [33].…”

“…Graphene, a single-atom-thick two-dimensional graphitic carbon material, has attracted multidisciplinary attention thanks to its high electrical conductivity, large surface area, and good chemical stability [16]. These novel properties make graphene as a promising material for applications in electrochemical sensors [17][18][19][20][21], battery [22], and supercapacitors [16,23].…”

“…These novel properties make graphene as a promising material for applications in electrochemical sensors [17][18][19][20][21], battery [22], and supercapacitors [16,23]. However, graphene adsorbs on the electrode surface via van der Waals interactions and thus, it suffers from low stability [24].…”