Ba-Modified ZnO Nanorods Loaded with Palladium for Highly Sensitive and Rapid Detection of Methane at Low Temperatures Article Swipe
Yijing Cai
,
Shirui Luo
,
Renjie Chen
,
Junxia Yu
,
Lan Xiang
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/chemosensors10090346
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/chemosensors10090346
Exploring novel sensing materials to rapidly identify CH4 at low temperatures is crucial for various practical applications. Herein, a novel ZnO-xBa/Pd with Ba of cocatalyst loading from 0 to 2.0 wt% was facilely prepared using a two-step impregnation method to improve the sensitivity of the CH4 gas sensor. The microstructure, chemical states of the elements, and surface properties of ZnO-Ba/Pd were characterized, and the gas-sensitive performance of ZnO-Ba/Pd sensors was investigated. Compared to methane sensors based on other inorganic and organic material sensors, the sensor based on ZnO-1.0Ba/Pd exhibited a faster response/recovery time (1.4 s/8.3 s) and higher response (368.2%) for 5000 ppm CH4 at a lower temperature (170 °C). Moreover, the ZnO-1.0Ba/Pd sensor exhibited full reversibility and long-term stability, as well as excellent selectivity at 170 °C. The excellent performance of the ZnO-Ba/Pd sensor was attributed to the electron donation by Ba, which increases the electron density around Pd, thus enhancing the catalytic activity of Pd and promoting oxygen adsorption on the ZnO surface. The present work provides a method for the rational design and synthesis of sensitive materials in practical CH4 detection.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/chemosensors10090346
- https://www.mdpi.com/2227-9040/10/9/346/pdf?version=1661250582
- OA Status
- gold
- Cited By
- 8
- References
- 49
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4293029369
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4293029369Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/chemosensors10090346Digital Object Identifier
- Title
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Ba-Modified ZnO Nanorods Loaded with Palladium for Highly Sensitive and Rapid Detection of Methane at Low TemperaturesWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-08-23Full publication date if available
- Authors
-
Yijing Cai, Shirui Luo, Renjie Chen, Junxia Yu, Lan XiangList of authors in order
- Landing page
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https://doi.org/10.3390/chemosensors10090346Publisher landing page
- PDF URL
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https://www.mdpi.com/2227-9040/10/9/346/pdf?version=1661250582Direct link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2227-9040/10/9/346/pdf?version=1661250582Direct OA link when available
- Concepts
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Nanorod, Materials science, Methane, Palladium, Selectivity, Adsorption, Chemical engineering, Catalysis, Nanotechnology, Oxygen, Microstructure, Composite material, Chemistry, Physical chemistry, Organic chemistry, EngineeringTop concepts (fields/topics) attached by OpenAlex
- Cited by
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8Total citation count in OpenAlex
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2024: 2, 2023: 6Per-year citation counts (last 5 years)
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49Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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