Fe3O4 nano-octahedral Fe-Fe3O4 (1 1 1) polar surface coordinated Fe atom enhanced sensing properties and its sensing atomic mechanism

Xiao-hua, Meng; Ren, Yan; Zhou, Yubin; Guo, Junyi; Zhang, Le; Chen, Qi; Liu, Bin; Yang, Heqing; Liu, Shengzhong

doi:10.1016/j.apsusc.2023.156999

Cited by 6 publications

(1 citation statement)

References 42 publications

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“…Yang et al prepared Fe 3 O 4 with polar (111) crystal planes to acetone and ethanol. Due to the enhancement of oxygen vacancies, the nano–octahedrons exhibited higher sensitivity than commercial powder . Moreover, for the highly unsaturated coordinate numbers and special electronic structures, defect engineering has also been considered an effective strategy to improve gas sensing performance. , For example, Jiang et al reported that h -WO 3 nanotubes with more crystal defects and oxygen vacancies displayed excellent gas sensing for acetone ( S = 32, 100 ppm).…”

Section: Introductionmentioning

confidence: 99%

Defective WO₃ Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection

Ding

Chen

Xie

et al. 2023

ACS Appl. Nano Mater.

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Defect and facet engineering are the two effective approaches to tune the surface reactivity of metal-oxide-based sensing materials. Here, oxygen vacancies defective of WO 3 nanosheets with exposed (002) crystal facet [D-WO 3 -(002)] were obtained by a simple hydrothermal−hydrogenation process. The results revealed that a D-WO 3 -( 002)-based acetone sensor exhibits excellent comprehensive gas sensitive performance: low limit of detection (0.5 ppm), wide range of 0.5−100 ppm (S = 2.8∼45.6), high selectivity, fast response−recovery, and excellent repeatability. The outstanding gas-sensing performance is attributed to the synergistic effects of the dominant (002) facet and the defect of oxygen vacancy structure, which effectively improved the surface reactivity of monoclinic WO 3 nanosheets. For highly sensitive and wide range sensing performance, this work demonstrates tremendous potential application prospect for environmental monitoring of acetone and non-invasive diagnosis of diabetes.

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Section: Introductionmentioning

confidence: 99%

Defective WO₃ Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection

Ding

Chen

Xie

et al. 2023

ACS Appl. Nano Mater.

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Effect of adsorbate geometry and hydrogen bonding on the enhanced adsorption of VOCs by an interfacial Fe3O4–rGO heterostructure

Lee,

Kim,

Soo Han

et al. 2023

Chemical Engineering Journal

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Nanostructured iron oxides for heterogeneous catalysis

Zhou,

et al. 2024

EnergyChem

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Fe3O4 nano-octahedral Fe-Fe3O4 (1 1 1) polar surface coordinated Fe atom enhanced sensing properties and its sensing atomic mechanism

Cited by 6 publications

References 42 publications

Defective WO₃ Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection

Defective WO₃ Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection

Effect of adsorbate geometry and hydrogen bonding on the enhanced adsorption of VOCs by an interfacial Fe3O4–rGO heterostructure

Nanostructured iron oxides for heterogeneous catalysis

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Fe3O4 nano-octahedral Fe-Fe3O4 (1 1 1) polar surface coordinated Fe atom enhanced sensing properties and its sensing atomic mechanism

Cited by 6 publications

References 42 publications

Defective WO3 Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection

Defective WO3 Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection

Effect of adsorbate geometry and hydrogen bonding on the enhanced adsorption of VOCs by an interfacial Fe3O4–rGO heterostructure

Nanostructured iron oxides for heterogeneous catalysis

Contact Info

Product

Resources

About

Defective WO₃ Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection

Defective WO₃ Nanosheets with (002)-Exposed Facet for Highly Sensitive Acetone Detection