{"title":"pd掺杂SnO2测定水杨酸甲酯超灵敏气敏","authors":"Chaoqi Zhu, Xiang Li, Xiaoxia Wang, Huiyu Su, Chaofan Ma, Xiang Guo, Changsheng Xie, Dawen Zeng","doi":"10.1007/s11706-022-0625-5","DOIUrl":null,"url":null,"abstract":"<div><p>Efficient chemical warfare agents (CWAs) detection is required to protect people from the CWAs in war and terrorism. In this work, a Pd-doped SnO<sub>2</sub> nanoparticles-based gas sensor was developed to detect a nerve agent simulant named methyl salicylate. The sensing measurements of methyl salicylate under different Pd doping amounts found that the 0.5 at.% Pd-doped SnO<sub>2</sub> exhibited a significant improvement in the detection of methyl salicylate at the ppb (1 ppb = 10<sup>−9</sup>) level, and the response value to 160 ppb methyl salicylate is 0.72 at 250 °C. Compared with the pure SnO<sub>2</sub>, the response value is increased by 4.5 times, which could be attributed to the influence of the noble metal Pd on the oxygen state and its catalytic effect. In addition, the 0.5 at.% Pd-doped SnO<sub>2</sub> sensor still has an obvious response to 16 ppb methyl salicylate with a response value of 0.13, indicating the lower detection limit of the sensor.</p></div>","PeriodicalId":572,"journal":{"name":"Frontiers of Materials Science","volume":"16 4","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultrasensitive methyl salicylate gas sensing determined by Pd-doped SnO2\",\"authors\":\"Chaoqi Zhu, Xiang Li, Xiaoxia Wang, Huiyu Su, Chaofan Ma, Xiang Guo, Changsheng Xie, Dawen Zeng\",\"doi\":\"10.1007/s11706-022-0625-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Efficient chemical warfare agents (CWAs) detection is required to protect people from the CWAs in war and terrorism. In this work, a Pd-doped SnO<sub>2</sub> nanoparticles-based gas sensor was developed to detect a nerve agent simulant named methyl salicylate. The sensing measurements of methyl salicylate under different Pd doping amounts found that the 0.5 at.% Pd-doped SnO<sub>2</sub> exhibited a significant improvement in the detection of methyl salicylate at the ppb (1 ppb = 10<sup>−9</sup>) level, and the response value to 160 ppb methyl salicylate is 0.72 at 250 °C. Compared with the pure SnO<sub>2</sub>, the response value is increased by 4.5 times, which could be attributed to the influence of the noble metal Pd on the oxygen state and its catalytic effect. In addition, the 0.5 at.% Pd-doped SnO<sub>2</sub> sensor still has an obvious response to 16 ppb methyl salicylate with a response value of 0.13, indicating the lower detection limit of the sensor.</p></div>\",\"PeriodicalId\":572,\"journal\":{\"name\":\"Frontiers of Materials Science\",\"volume\":\"16 4\",\"pages\":\"\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2022-12-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Frontiers of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11706-022-0625-5\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11706-022-0625-5","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Ultrasensitive methyl salicylate gas sensing determined by Pd-doped SnO2
Efficient chemical warfare agents (CWAs) detection is required to protect people from the CWAs in war and terrorism. In this work, a Pd-doped SnO2 nanoparticles-based gas sensor was developed to detect a nerve agent simulant named methyl salicylate. The sensing measurements of methyl salicylate under different Pd doping amounts found that the 0.5 at.% Pd-doped SnO2 exhibited a significant improvement in the detection of methyl salicylate at the ppb (1 ppb = 10−9) level, and the response value to 160 ppb methyl salicylate is 0.72 at 250 °C. Compared with the pure SnO2, the response value is increased by 4.5 times, which could be attributed to the influence of the noble metal Pd on the oxygen state and its catalytic effect. In addition, the 0.5 at.% Pd-doped SnO2 sensor still has an obvious response to 16 ppb methyl salicylate with a response value of 0.13, indicating the lower detection limit of the sensor.
期刊介绍：
Frontiers of Materials Science is a peer-reviewed international journal that publishes high quality reviews/mini-reviews, full-length research papers, and short Communications recording the latest pioneering studies on all aspects of materials science. It aims at providing a forum to promote communication and exchange between scientists in the worldwide materials science community.
The subjects are seen from international and interdisciplinary perspectives covering areas including (but not limited to):
Biomaterials including biomimetics and biomineralization;
Nano materials;
Polymers and composites;
New metallic materials;
Advanced ceramics;
Materials modeling and computation;
Frontier materials synthesis and characterization;
Novel methods for materials manufacturing;
Materials performance;
Materials applications in energy, information and biotechnology.
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