Jiyeon Shin , Jeong Yun Hwang , Changyu Kim , Jimyeong Park , Jong Wook Roh , Sun-Woo Choi , Changhyun Jin , Myung Sik Choi
{"title":"采用水热法和微波法合成的金装饰二氧化锡纳米球对 H2S 气体传感的增强作用","authors":"Jiyeon Shin , Jeong Yun Hwang , Changyu Kim , Jimyeong Park , Jong Wook Roh , Sun-Woo Choi , Changhyun Jin , Myung Sik Choi","doi":"10.1016/j.snr.2024.100246","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, non-oriented Au-decorated SnO<sub>2</sub> nanospheres (NSs) were synthesized using hydrothermal and microwave methods. The SnO<sub>2</sub> spheres ranged from hundreds of nanometers to a microscale. The oxygen vacancy on the surface increased after Au adsorption on the surface of the SnO<sub>2</sub> NSs, ultimately showing a synergistic effect with the spillover effect of the existing Au catalyst. Specifically, at 100 °C and 200 °C, the response to 10 ppm H<sub>2</sub>S gas improved to 16.14 and 46.81, respectively. These gas sensing effects were approached individually by being divided into two disadvantages (oxygen adsorption and homojunction) and five advantages (oxygen vacancies, spill-over, surface area, H<sub>2</sub>S + SnO<sub>2</sub> reaction, and H<sub>2</sub>S + O<sub>2</sub> reaction). Based on this reference, we investigated SnO<sub>2</sub> NSs of various sizes and functions by adjusting the process variables.</div></div>","PeriodicalId":426,"journal":{"name":"Sensors and Actuators Reports","volume":"8 ","pages":"Article 100246"},"PeriodicalIF":6.5000,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"H2S gas sensing enhancement of Au-decorated SnO2 nanospheres synthesized using hydrothermal and microwave methods\",\"authors\":\"Jiyeon Shin , Jeong Yun Hwang , Changyu Kim , Jimyeong Park , Jong Wook Roh , Sun-Woo Choi , Changhyun Jin , Myung Sik Choi\",\"doi\":\"10.1016/j.snr.2024.100246\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In this study, non-oriented Au-decorated SnO<sub>2</sub> nanospheres (NSs) were synthesized using hydrothermal and microwave methods. The SnO<sub>2</sub> spheres ranged from hundreds of nanometers to a microscale. The oxygen vacancy on the surface increased after Au adsorption on the surface of the SnO<sub>2</sub> NSs, ultimately showing a synergistic effect with the spillover effect of the existing Au catalyst. Specifically, at 100 °C and 200 °C, the response to 10 ppm H<sub>2</sub>S gas improved to 16.14 and 46.81, respectively. These gas sensing effects were approached individually by being divided into two disadvantages (oxygen adsorption and homojunction) and five advantages (oxygen vacancies, spill-over, surface area, H<sub>2</sub>S + SnO<sub>2</sub> reaction, and H<sub>2</sub>S + O<sub>2</sub> reaction). Based on this reference, we investigated SnO<sub>2</sub> NSs of various sizes and functions by adjusting the process variables.</div></div>\",\"PeriodicalId\":426,\"journal\":{\"name\":\"Sensors and Actuators Reports\",\"volume\":\"8 \",\"pages\":\"Article 100246\"},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2024-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sensors and Actuators Reports\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666053924000626\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators Reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666053924000626","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
H2S gas sensing enhancement of Au-decorated SnO2 nanospheres synthesized using hydrothermal and microwave methods
In this study, non-oriented Au-decorated SnO2 nanospheres (NSs) were synthesized using hydrothermal and microwave methods. The SnO2 spheres ranged from hundreds of nanometers to a microscale. The oxygen vacancy on the surface increased after Au adsorption on the surface of the SnO2 NSs, ultimately showing a synergistic effect with the spillover effect of the existing Au catalyst. Specifically, at 100 °C and 200 °C, the response to 10 ppm H2S gas improved to 16.14 and 46.81, respectively. These gas sensing effects were approached individually by being divided into two disadvantages (oxygen adsorption and homojunction) and five advantages (oxygen vacancies, spill-over, surface area, H2S + SnO2 reaction, and H2S + O2 reaction). Based on this reference, we investigated SnO2 NSs of various sizes and functions by adjusting the process variables.
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Sensors and Actuators Reports is a peer-reviewed open access journal launched out from the Sensors and Actuators journal family. Sensors and Actuators Reports is dedicated to publishing new and original works in the field of all type of sensors and actuators, including bio-, chemical-, physical-, and nano- sensors and actuators, which demonstrates significant progress beyond the current state of the art. The journal regularly publishes original research papers, reviews, and short communications.
For research papers and short communications, the journal aims to publish the new and original work supported by experimental results and as such purely theoretical works are not accepted.
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