甲醛
掺杂剂
过渡金属
兴奋剂
材料科学
热液循环
晶体结构
金属
Crystal(编程语言)
催化作用
分析化学(期刊)
无机化学
纳米技术
化学工程
化学
结晶学
冶金
光电子学
有机化学
工程类
程序设计语言
计算机科学
作者
Zejun Han,Yunxiang Tang,Guixia Lu,Qi Yuan,Hao Wu,Zhengyi Yang,Huijian Han,Xue Zhang,Lili Wu,Zhou Wang,Jiurong Liu,Fenglong Wang
出处
期刊:Heliyon
[Elsevier]
日期:2023-02-01
卷期号:9 (2): e13486-e13486
被引量:2
标识
DOI:10.1016/j.heliyon.2023.e13486
摘要
Pristine SnO2, Fe-doped SnO2 and Ni-doped SnO2 were synthesized using facile hydrothermal method. Analysis based on XRD, TEM and UV–Vis DRS measurements demonstrated the successful insertion of Fe and Ni dopants into SnO2 crystal. Formaldehyde-detection measurements revealed that transition metal-doped SnO2 exhibited improved formaldehyde-sensing properties compared with that of pristine SnO2. When the amount of incorporated dopant (Fe or Ni) was 4 at.%, the most effective enhancement on sensing performance of SnO2 was obtained. At 160 °C, the 4 at.% Fe–SnO2 and 4 at.% Ni–SnO2 exhibited higher response values of 7.52 and 4.37 with exposure to low-concentration formaldehyde, respectively, which were 2.4 and 1.4 times higher than that of pristine SnO2. The change of electronic structure and crystal structure as well as catalytic effect of transition metals are chiefly responsible for the enhanced sensing properties.
科研通智能强力驱动
Strongly Powered by AbleSci AI