Cobalt oxide thin films were successfully grown directly on fluorine-doped tin glass substrates through a simple, green, and low-cost hydrothermal method. An investigation into the physicochemical characteristics photoelectrochemical (PEC) properties of developed cobalt film was comprehensively performed. At various annealing temperatures, different morphologies crystal phases observed. Microfl...

Rapid capacity decay and inferior kinetics are the vital issues of anodes in conversion reaction for lithium-ion batteries. Vacancy engineering can efficiently modulate intrinsic properties transition-metal oxide (TMO)-based electrode materials, but effect oxygen vacancies on performance remains unclear. Herein, abundant situ introduced into lattice different TMOs (e.g., Co3O4, Fe2O3, NiO) via ...

The present research reports the synthesis of poly-N-isopropylacrylamide / mesoporous carbon composites, prepared by radical polymerization of N-isopropylacrylamide inside mesoporous carbon pores functionalized with carboxylic groups. The deposition of poly-N-isopropylacrylamide on mesoporous carbon was confirmed by FT-IR spectroscopy, TEM, N2-sorption measurements. The mesoporous carbon materi...

ordered mesoporous carbon cmk-3 (omc) have been synthesized using mesoporous sba-15 silica as template and modified with cobalt carbonate. morphologies and surface texturing of materials werecharacterized by x-ray diffraction (xrd), scanning electron microscopy (sem) and n2 adsorption-desorptionisotherms. the cobalt modified ordered mesoporous carbon were found to have a surface area of 490.06m...

we report on the synthesis, morphology, chemically and structurally of la2o3-co3o4-zro2 nanostructure. the la2o3-co3o4-zro2 nanostructure was synthesized by a method based on the co-precipitation. composite powders have been characterized by xrd (x-ray diffraction), sem (scanning electron microscopy) and bet (brunauer-emmett-teller). x-ray diffraction showed the formation of nano crystalline, l...

In this paper, a new electrochemical sensor was reported for the determination of amaranth in drink soft. sensor, activated carbon-Co3O4 nanocomposite (AC-Co3O4) employ­ed as electrode modifying materials. The introduction high pores to carbon not only can favor more molecules adsorbed surface working through pores, but also may benefit fast electron diffusion electro­chemical detection process...

Constructing nanostructures with desirable morphology and size is a critical issue for pursuing high performance electrode materials. Ultrathin Co3O4 nanosheet arrays, which are composed of well aligned uniform long-range (~5 μm in length) and thin (~10 nm in thickness) nanosheets, with reasonable mass loading on Ni foam are prepared by a two-step hydrothermal reaction. As a supercapacitor elec...

Electrochemical conversion of NO3− to NH3via the nitrate reduction reaction (NO3−RR) is a promising approach for ammonia production and storage “green hydrogen”. Co3O4 has shown satisfactory Faradaic efficiency toward $${\rm{N}}{{\rm{H}}_3}\,({\rm{F}}{{\rm{E}}_{{\rm{N}}{{\rm{H}}_3}}})$$ stability, making it potential electrocatalyst NO3−-to-NH3 conversion. However, high overpotential required t...

This paper presents a sensitive simultaneous detection procedure for Sudan I and bisphenol A based on the multiwalled carbon nanotubes (MWCNTs)/Co3O4 nanocomposite modified screen-printed graphite electrode (SPGE). MWCNTs/Co3O4 was prepared by hydrothermal technique, characterized Fourier transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM) X-ray diffrac...

msu-s mesoporous catalyst with [sio2]/[al2o3] ratio of 55 was synthesized using tetrapropylammonium hydroxide (tpaoh) as a structure directing agent and hexadecyltrimethylammonium bromide (ctab) as a surfactant. the catalytic activity of the calcined sample was evaluated for the dehydration of methanol to dimethyl ether (dme) in a vertical fixed bed microreactor at a weight hurly space velocity...