The development of gas sensor with innovative designs is highly desirable for widespread deployments of sensors in applications of monitoring indoor air quality and industrial safety. Herein, an approach is put forward to substantially improve gas sensing performance via electrospinning of metal ion and cross-linked polymer to porous and hetero indium trioxide (In₂O₃) ribbon combined with cobaltosic oxide (Co₃O₄) particles. The structural evaluation was systematically discussed and the content of the Co₃O₄ was subtly regulated. The gas sensing results indicated that the obtained vacancy oxygen and adsorbed oxygen-abundant In₂O₃-Co₃O₄ ribbons exhibited significantly high response towards volatile organic compounds (VOCs) encompassing acetone (52, 280 °C) and formaldehyde (39, 260 °C), which can be ascribed to hierarchical porous hetero-structures, ion mismatch and catalytic property of p-type Co₃O₄. This facile way sheds light on the rational design of gas sensitive materials via structure and composition engineering, resulting in facilitating the gas molecules adsorption and diffusion.

对于在监测室内空气质量和工业安全的应用中传感器的广泛部署，非常需要开发具有创新设计的气体传感器。这里，提出了一种通过将金属离子和交联的聚合物静电纺丝到结合有氧化钴（Co ₃ O ₄）颗粒的多孔和杂三氧化二铟（In ₂ O ₃）带上来显着改善气体传感性能的方法。系统地讨论了结构评价，并微调了Co ₃ O ₄的含量。气敏结果表明，所获得的空缺氧和富氧的In ₂ O ₃ -Co₃ O ₄碳带对包括丙酮（52，280°C）和甲醛（39，260°C）的挥发性有机化合物（VOC）表现出显着高响应，这可归因于分层的多孔异质结构，离子失配和催化性能p型Co ₃ O _4的数目。这种简便的方法通过结构和组成工程为合理设计气体敏感材料提供了启示，从而促进了气体分子的吸附和扩散。