Formaldehyde sensors are essential devices in the indoor air quality monitoring and gas
leakage detection in industrial areas. Enormous efforts are made to promote the …

Metal oxide-based resistive-type gas sensors are solid-state devices which are widely used
in a number of applications from health and safety to energy efficiency and emission control …

In the present work, transition metal spinel ferrite (MFe 2 O 4; M= Co, Ni, Zn) nanostructures
synthesized by chemical co-precipitation method. XRD analysis confirms the formation of …

Flammable, explosive and toxic gases, such as hydrogen, hydrogen sulfide and volatile
organic compounds vapor, are major threats to the ecological environment safety and …

Porous ZnFe 2 O 4 spherical structures built from nanoparticles were successfully
synthesized by annealing the precursor, which was synthesized via a simple template-free …

In this study, a facile hydrothermal process was used to prepare the NSs of ZnO/Yb2O3 in an
alkaline medium (pH∼ 10.5), at a low temperature. The calcined NSs were characterized by …

ZnFe 2 O 4 nanoparticles with diameter of ca. 10 nm were successfully synthesized under
hydrothermal conditions without using any surfactant or structure-directing agents. The …

Dispersed porous ZnO/ZnCo2O4 hollow spheres were successfully prepared by annealing
the precursor, which was obtained via a facile one-step solvothermal method without any …

Spinel-type oxides have attracted a broad interest in sensing materials research owing to
their high catalytic activity and flexibly tunable chemical properties. Here, we report the …

In order to study the gas-sensing properties of graphene-ZnFe 2 O 4 composite, graphene-
mixed ZnFe 2 O 4 with different mixing ratios are prepared via solvothermal method and …