Supercapacitors are energy storage devices that can cleanly and efficiently meet the growing demand. The presentwork describes synthesis of nanoparticles cobalt ferrite (CoFe2O4) by combustion method their use with activated carbon (AC) to manufacture supercapacitors. In order study influence composition on electrochemical properties, supercapacitors three different compositions were produced: ...

up to now, lots of materials such as active carbon, iron, manganese, zirconium, and metal oxides have been widely used for removal of dyes from contaminated water. among these, ferrite nanoparticle is an interesting magnetic material due to its moderate saturation magnetization, excellent chemical stability and mechanical hardness. graphene, a new class of 2d carbonaceous material with atom thi...

The microstructure and connectivity of the ionic and electronic conductive phases in composite ceramic membranes are directly related to device performance. Transmission electron microscopy (TEM) including chemical mapping combined with X-ray nanotomography (XNT) have been used to characterize the composition and 3-D microstructure of a MIEC composite model system consisting of a Ce0.8Gd0.2O2 (...

Constitutive equations of magnetostrictive smart materials involving mechanical and magnetic fields are presented via Hamilton’s principle. Finite element equations are used to solve the equations of motion subjected to different force inputs. Magnetostrictive (CoFe2O4) layers mounted on the root of cantilever beam is considered as the case study to obtain the displacement and magnetic response...

The conjugation of 14 nm diameter CoFe2O4 nanoparticles to the surface of biotinylated microtubules enables their manipulation with externally applied magnetic fields of small, permanent NdFeB magnets. Microtubules are selectively patterned on kinesin motor-modified glass surfaces in coparallel arrays that mimic the orientation of the magnetic field lines over millimeter distances. The magnetic...

The secondary treated effluents of pulp and paper mills contain high chemical oxygen demand (COD) that is associated with organic matter. Therefore, this study explores the adsorption substances contributing to COD using CoFe2O4 quartz sand-coated in batch fixed-bed column experiments. X-ray diffraction, scanning electron microscopy, Brunauer–Emmett–Teller analysis, photoelectron spectroscopy w...

La1,5Sr0,5NiO4 được biết đến là một chất điện môi điển hình có hằng số khổng lồ và tính thuận từ yếu ở nhiệt độ phòng. Mômen cùng với sự bất cân bằng rất lớn giữa thẩm dẫn hấp thụ sóng do không đóng góp của thành phần tổn hao trường. Để cải thiện trường, đồng thời làm các thông môi, vật liệu ferrite CoFe2O4 dần thêm vào để thu tổ hợp La1,5Sr0,5NiO4/CoFe2O4. Độ phản xạ RL xác định trong dải tần ...