Specific Sn–O–Fe Active Sites from Atomically Sn-Doping Porous Fe2O3 for Ultrasensitive NO2 Detection (IMAGE)

Shanghai Jiao Tong University Journal Center

Specific Sn–O–Fe Active Sites from Atomically Sn-Doping Porous Fe2O3 for Ultrasensitive NO2 Detection

Caption

  • The heteroatom atomically doping strategy was reported to construct highly efficient sites on metal oxides for the detection of low-concentration gas.
  • The atomically dispersed Sn atoms were intentionally incorporated into the Fe2O3 lattice during the oxidative annealing of Fe-based metal organic framework, leading to specific Sn–O–Fe sites, porous structures, and abundant oxygen vacancies.
  • The optimized Sn-Fe2O3 exhibited exceptional sensing performance for NO2 detection: ultra-high sensitivity (Rg/Ra=2646.6 to 1 ppm NO2), ultra-low limit of detection (10 ppb), and high selectivity.

Credit

Yihong Zhong, Guotao Yuan, Dequan Bao, Yi Tao, Zhenqiu Gao, Wei Zhao, Shuo Li, Yuting Yang, Pingping Zhang, Hao Zhang , Xuhui Sun.

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

License

CC BY-NC-ND

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.