One-step template-free synthesis of hollow core–shell α-Fe₂O₃ microspheres with improved lithium storage and gas-sensing properties

Abstract

The hollow core–shell α-Fe2O3 microspheres with improved lithium storage and gas-sensing properties have been fabricated by the template-free hydrothermal route.

Gas-sensing and electrical properties of perovskite structure p-type barium-substituted bismuth ferrite

“…Among the available semi-conductive materials, binary metallic oxides such as ZnO, SnO 2 and Fe 2 O 3 usually exhibit excellent sensing properties. [1][2][3][4][5] Yet it is a pity that their long-term reliability is still questionable, especially when working in a humid environment. 6 It was reported that some ternary metal oxides with a perovskite ABO 3 structure have more stable and reliable gas-sensing properties than binary metal oxides do, which could be attributed to the ternary oxides consisting of two differently sized cations and their ability to accept a variety of dopants.…”

Facile Fabrication of Mesoporous Hierarchical Co-Doped ZnO for Highly Sensitive Ethanol Detection

“…Metal oxide semiconductors have drawn tremendous attention because they have the advantages of low cost, good sensitivity, controllable preparation, and facile integration, and they have been developed for gas detection over the past few decades. − These metal oxide semiconductors can be classified as n-type semiconductors (such as In 2 O 3 , , SnO 2 , , ZnO, − Fe 2 O 3 , , WO 3 , , etc.) and p-type semiconductors (such as NiO, − Co 3 O 4 , − CuO, etc.)…”