Unknown

Dataset Information

0

The role of oxygen vacancies in the sensing properties of Ni substituted SnO2 microspheres.

ABSTRACT: The influence of Ni doping in SnO2 microspheres was investigated in this study. SnO2 was doped with different amounts of Ni using a simple dipping method. The doped SnO2 structure, which was confirmed from X-ray photoelectron (XPS) and photoluminescence (PL) spectroscopies, was shown to possess distinctly more oxygen vacancies. Oxygen vacancies were found to be responsible for the surface adsorption of oxygen, as shown in the O 1s XPS spectrum and O2-TPD (temperature programmed desorption) measurements which can enhance the sensitivity of materials. According to the gas sensing properties, Ni-doped SnO2 was enhanced towards ethanol and showed excellent stability at the operating temperature. At 1 ppm of ethanol vapor, the response value of Ni substituted SnO2 was about 3 times that of pristine SnO2 microspheres. This research reveals a notable perspective for the design of sensing materials in terms of Ni substitutional doping.

SUBMITTER: Sun J 

PROVIDER: S-EPMC9086386 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

The role of oxygen vacancies in the sensing properties of Ni substituted SnO<sub>2</sub> microspheres.

Sun Jianwu J   Yin Guilin G   Cai Ting T   Yu Weiwei W   Peng Fang F   Sun Yan Y   Zhang Fang F   Lu Jing J   Ge Meiying M   He Dannong D  

RSC advances 20180924 58

The influence of Ni doping in SnO<sub>2</sub> microspheres was investigated in this study. SnO<sub>2</sub> was doped with different amounts of Ni using a simple dipping method. The doped SnO<sub>2</sub> structure, which was confirmed from X-ray photoelectron (XPS) and photoluminescence (PL) spectroscopies, was shown to possess distinctly more oxygen vacancies. Oxygen vacancies were found to be responsible for the surface adsorption of oxygen, as shown in the O 1s XPS spectrum and O<sub>2</sub>-T  ...[more]

Similar Datasets

Unknown Direct <i>in situ</i> spectroscopic evidence of the crucial role played by surface oxygen vacancies in the O<sub>2</sub>-sensing mechanism of SnO<sub>2</sub>.
| S-EPMC9132051 | biostudies-literature
Unknown SnO<sub>2</sub> Nanoparticles-CeO<sub>2</sub> Nanorods Enriched with Oxygen Vacancies for Bifunctional Sensing Performances toward Toxic CO Gas and Arsenate Ions.
| S-EPMC9201895 | biostudies-literature
Unknown The electronic properties of SrTiO<sub>3-δ</sub> with oxygen vacancies or substitutions.
| S-EPMC8639995 | biostudies-literature
Unknown In Situ Fabrication of SnS<sub>2</sub>/SnO<sub>2</sub> Heterostructures for Boosting Formaldehyde-Sensing Properties at Room Temperature.
| S-EPMC10563078 | biostudies-literature
Unknown Chemistry of Oxygen Ionosorption on SnO<sub>2</sub> Surfaces.
| S-EPMC8397246 | biostudies-literature
Unknown Determining the role of oxygen vacancies in the photoelectrocatalytic performance of WO<sub>3</sub> for water oxidation.
| S-EPMC8157495 | biostudies-literature
Unknown The Role of Zn Ions in the Structural, Surface, and Gas-Sensing Properties of SnO<sub>2</sub>:Zn Nanocrystals Synthesized via a Microwave-Assisted Route.
| S-EPMC10781226 | biostudies-literature
Unknown Embedding Pd into SnO<sub>2</sub> drastically enhances gas sensing.
| S-EPMC10863718 | biostudies-literature
Unknown New insights towards strikingly improved room temperature ethanol sensing properties of p-type Ce-doped SnO<sub>2</sub> sensors.
| S-EPMC5967327 | biostudies-literature
Unknown Enhanced gas selectivity induced by surface active oxygen in SnO/SnO<sub>2</sub> heterojunction structures at different temperatures.
| S-EPMC9059712 | biostudies-literature