Details

Autor(en) / Beteiligte

• Lv, Jianxin
• Zhang, Linghui
• Si, Lianxi
• Li, Hui
• Zhao, Wenbo
• An, Fei
• Feng, Xia
• Hu, Shi

Titel

Rapid and stable hydrogen detection based on Pd-modified WO nanosheets

Ist Teil von

• Dalton transactions : an international journal of inorganic chemistry, 2023-03, Vol.52 (13), p.42-426

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Materials with accurate and durable gas detection are essential for gas sensors. We developed a facile and effective method to deposit Pd onto WO 3 nanosheets and used the samples for hydrogen gas sensing. The combination of the 2D ultrathin nanostructure of WO 3 and the spillover effect of Pd enables a detection concentration down to 20 ppm of hydrogen and high selectivity against other gases including methane, butane, acetone, isopropanol, etc . Moreover, the durability of the sensing materials was testified through 50 cycles of exposure to 200 ppm of hydrogen. These outstanding performances are mainly attributed to a homogeneous and tenacious decoration of Pd on the surface of WO 3 nanosheets, providing an attractive choice for practical applications. The combination of the 2D ultrathin structure of WO 3 and the catalytic effect of Pd endow Pd/WO 3 with rapid and stable hydrogen detection.