α‐Fe2O3 Nanorings Prepared by a Microwave‐Assisted Hydrothermal Process and Their Sensing Properties

作者：Xianluo Hu, Jimmy C. Yu, Jiang Gong, Quan Li, Gang Li · 发表于：Advanced Materials · 年份：2007 · DOI：10.1002/adma.200602176 · 被引用次数：631 · 研究领域：Iron oxide chemistry and applications、Advanced biosensing and bioanalysis techniques、Electrochemical Analysis and Applications

Free-standing α-Fe2O3 nanorings are synthesized in solution through a rapid microwave-assisted hydrothermal process. The ringlike structure is a new member in the family of iron oxide nanostructures. The sensors made of the α-Fe2O3 nanorings exhibit high sensitivity not only for bio-sensing of hydrogen peroxide in a physiological solution but also for gas-sensing of alcohol vapor at room temperature.