Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor
Hierarchical Zinc phosphate nano/microstructures with controlled morphological features were synthesized in aqueous solutions through simple and economical route without using any type of surfactant or template. SEM analysis revealed novel morphologies of the synthesized powders i.e., hierarchical m...
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Elsevier
2025-06-01
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| Series: | Sensors and Actuators Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666053925000086 |
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| author | Khalida Akhtar Naila Zubair Neelam Zeb Syed Sajjad Ali Shah Zia Ullah Khan Hina Khalid |
| author_facet | Khalida Akhtar Naila Zubair Neelam Zeb Syed Sajjad Ali Shah Zia Ullah Khan Hina Khalid |
| author_sort | Khalida Akhtar |
| collection | DOAJ |
| description | Hierarchical Zinc phosphate nano/microstructures with controlled morphological features were synthesized in aqueous solutions through simple and economical route without using any type of surfactant or template. SEM analysis revealed novel morphologies of the synthesized powders i.e., hierarchical microspheres, urchin like microspheres, nanoflowers and nanoellipsoids and unfolded that produced morphologies strongly depended upon the applied experimental conditions. Selected batches of the synthesized powders i.e., hierarchical microspheres, urchin like microspheres and hierarchical nanoellipsoids were selected for further analysis using XRD, FT-IR, BET analysis and gas sensing application and termed as Zinc Phosphate 1 (ZP1), Zinc Phosphate 2 (ZP2), and Zinc Phosphate 3 (ZP3), respectively. XRD results confirmed the crystalline nature of the as-prepared powders with crystallite sizes 16.5 nm, 30. 15 nm and 37.01 nm, for ZP1, ZP2 and ZP3, respectively. Evaluation of gas sensing properties of the selected samples revealed that sensors based on ZP1 showed highest gas sensing response of 89 % with response recovery time 31/12 s, towards 5 ppm ammonia at room temperature. In addition, the lowest detection limit was investigated to be <1 ppm. Because of the excellent gas sensing performance, the synthesized zinc phosphate structures could be employed as promising candidates for developing highly sensitive and selective room temperature ammonia gas sensor. |
| format | Article |
| id | doaj-art-44967779096f47c6a0e20883b890fdb8 |
| institution | Kabale University |
| issn | 2666-0539 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
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| series | Sensors and Actuators Reports |
| spelling | doaj-art-44967779096f47c6a0e20883b890fdb82025-02-03T04:16:56ZengElsevierSensors and Actuators Reports2666-05392025-06-019100288Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensorKhalida Akhtar0Naila Zubair1Neelam Zeb2Syed Sajjad Ali Shah3Zia Ullah Khan4Hina Khalid5National Centre of Excellence in Physical Chemistry, University of Peshawar, KP, PakistanDepartment of Chemistry, Women University Mardan, KP, Pakistan; Corresponding author.Department of Biotechnology, Women University Mardan, KP, PakistanNational Centre of Excellence in Physical Chemistry, University of Peshawar, KP, PakistanNational Centre of Excellence in Physical Chemistry, University of Peshawar, KP, PakistanNational Centre of Excellence in Physical Chemistry, University of Peshawar, KP, PakistanHierarchical Zinc phosphate nano/microstructures with controlled morphological features were synthesized in aqueous solutions through simple and economical route without using any type of surfactant or template. SEM analysis revealed novel morphologies of the synthesized powders i.e., hierarchical microspheres, urchin like microspheres, nanoflowers and nanoellipsoids and unfolded that produced morphologies strongly depended upon the applied experimental conditions. Selected batches of the synthesized powders i.e., hierarchical microspheres, urchin like microspheres and hierarchical nanoellipsoids were selected for further analysis using XRD, FT-IR, BET analysis and gas sensing application and termed as Zinc Phosphate 1 (ZP1), Zinc Phosphate 2 (ZP2), and Zinc Phosphate 3 (ZP3), respectively. XRD results confirmed the crystalline nature of the as-prepared powders with crystallite sizes 16.5 nm, 30. 15 nm and 37.01 nm, for ZP1, ZP2 and ZP3, respectively. Evaluation of gas sensing properties of the selected samples revealed that sensors based on ZP1 showed highest gas sensing response of 89 % with response recovery time 31/12 s, towards 5 ppm ammonia at room temperature. In addition, the lowest detection limit was investigated to be <1 ppm. Because of the excellent gas sensing performance, the synthesized zinc phosphate structures could be employed as promising candidates for developing highly sensitive and selective room temperature ammonia gas sensor.http://www.sciencedirect.com/science/article/pii/S2666053925000086Zinc phosphateControlled morphologiesHierarchical structuresGas sensorSensor responseResponse/recovery time |
| spellingShingle | Khalida Akhtar Naila Zubair Neelam Zeb Syed Sajjad Ali Shah Zia Ullah Khan Hina Khalid Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor Sensors and Actuators Reports Zinc phosphate Controlled morphologies Hierarchical structures Gas sensor Sensor response Response/recovery time |
| title | Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor |
| title_full | Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor |
| title_fullStr | Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor |
| title_full_unstemmed | Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor |
| title_short | Morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor |
| title_sort | morphology controlled fabrication of zinc phosphate hierarchical microspheres for room temperature ammonia gas sensor |
| topic | Zinc phosphate Controlled morphologies Hierarchical structures Gas sensor Sensor response Response/recovery time |
| url | http://www.sciencedirect.com/science/article/pii/S2666053925000086 |
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