Highly sensitive and selective H2S gas sensors based on flower-like WO3/CuO composites operating at low/room temperature

• Published in: Journal of alloys and compounds Vol. 788; pp. 36 - 43
• Main Authors: He, Meng, Xie, Lili, Zhao, Xueling, Hu, Xiaobing, Li, Sihan, Zhu, Zhi-Gang
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 05.06.2019; Elsevier BV
• Subjects: Composite materials; Composite structures; Detection; Gas sensor; Gas sensors; H2S sensor; Hydrogen sulfide; Microspheres; Morphology; Nanoparticles; Operating temperature; P–n junction; Room temperature; Selectivity; Temperature; Tungsten oxides; WO3/CuO composites; WO3/CuO composites; Gas sensor; P–n junction; H2S sensor

The highly sensitive hydrogen sulfide (H2S) gas sensor was developed from a semiconductor composite structure composed of flower-like WO3 microspheres whose surface was modified with CuO nanoparticles. The composites were prepared by a simple two-step hydrothermal method. The morphology and structur...