R. Godbole, V. Godbole, P. Rao, P. Alegaokar, S. Bhagwat
{"title":"燃料与氧化剂比对ZnFe2O4纳米颗粒气敏特性的影响","authors":"R. Godbole, V. Godbole, P. Rao, P. Alegaokar, S. Bhagwat","doi":"10.1109/ISPTS.2015.7220101","DOIUrl":null,"url":null,"abstract":"Highly porous zinc ferrite (ZnFe2O4) nano-size powders are synthesized by varying fuel to oxidizer ratio. The metal nitrates are used as oxidizers while glycine is used as a fuel. The synthesis of material is carried out using an auto-combustion method. It is observed that the enhancement of magnetization occur with the enhancement of `Fuel to Oxidizer' ratio i.e. Glycine to metal Nitrate (G/N) ratio. The structural, morphological, and magnetic features of samples are studied using XRD, SEM, EDAX, BET and VSM techniques. At the microscopic level, the materials exhibit a formation of spongelike structure containing nano-size particles. The XRD measurements confirm the formation of single phase spinel structure of zinc ferrite (ZnFe2O4). As a case study, the response of materials to ethanol gas is studied. It is observed that higher G/N ratio lead to lowering of gas sensitivity as well as operating temperature. The results are discussed in terms of reactions of surface oxygen with ethanol gas.","PeriodicalId":6520,"journal":{"name":"2015 2nd International Symposium on Physics and Technology of Sensors (ISPTS)","volume":"59 1","pages":"147-153"},"PeriodicalIF":0.0000,"publicationDate":"2015-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of fuel to oxidizer ratio on gas sensing characteristics of ZnFe2O4 nanoparticles\",\"authors\":\"R. Godbole, V. Godbole, P. Rao, P. Alegaokar, S. Bhagwat\",\"doi\":\"10.1109/ISPTS.2015.7220101\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Highly porous zinc ferrite (ZnFe2O4) nano-size powders are synthesized by varying fuel to oxidizer ratio. The metal nitrates are used as oxidizers while glycine is used as a fuel. The synthesis of material is carried out using an auto-combustion method. It is observed that the enhancement of magnetization occur with the enhancement of `Fuel to Oxidizer' ratio i.e. Glycine to metal Nitrate (G/N) ratio. The structural, morphological, and magnetic features of samples are studied using XRD, SEM, EDAX, BET and VSM techniques. At the microscopic level, the materials exhibit a formation of spongelike structure containing nano-size particles. The XRD measurements confirm the formation of single phase spinel structure of zinc ferrite (ZnFe2O4). As a case study, the response of materials to ethanol gas is studied. It is observed that higher G/N ratio lead to lowering of gas sensitivity as well as operating temperature. The results are discussed in terms of reactions of surface oxygen with ethanol gas.\",\"PeriodicalId\":6520,\"journal\":{\"name\":\"2015 2nd International Symposium on Physics and Technology of Sensors (ISPTS)\",\"volume\":\"59 1\",\"pages\":\"147-153\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-03-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 2nd International Symposium on Physics and Technology of Sensors (ISPTS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISPTS.2015.7220101\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 2nd International Symposium on Physics and Technology of Sensors (ISPTS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISPTS.2015.7220101","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Influence of fuel to oxidizer ratio on gas sensing characteristics of ZnFe2O4 nanoparticles
Highly porous zinc ferrite (ZnFe2O4) nano-size powders are synthesized by varying fuel to oxidizer ratio. The metal nitrates are used as oxidizers while glycine is used as a fuel. The synthesis of material is carried out using an auto-combustion method. It is observed that the enhancement of magnetization occur with the enhancement of `Fuel to Oxidizer' ratio i.e. Glycine to metal Nitrate (G/N) ratio. The structural, morphological, and magnetic features of samples are studied using XRD, SEM, EDAX, BET and VSM techniques. At the microscopic level, the materials exhibit a formation of spongelike structure containing nano-size particles. The XRD measurements confirm the formation of single phase spinel structure of zinc ferrite (ZnFe2O4). As a case study, the response of materials to ethanol gas is studied. It is observed that higher G/N ratio lead to lowering of gas sensitivity as well as operating temperature. The results are discussed in terms of reactions of surface oxygen with ethanol gas.
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