LaCoxMn1−xO3钙钛矿氧化物的合成及其在AP热研究中的催化应用

IF 1.8 4区 工程技术 Q3 ENGINEERING, CHEMICAL
Pragnesh N. Dave, Taruna Likhariya, Shalini Chaturvedi
{"title":"LaCoxMn1−xO3钙钛矿氧化物的合成及其在AP热研究中的催化应用","authors":"Pragnesh N. Dave,&nbsp;Taruna Likhariya,&nbsp;Shalini Chaturvedi","doi":"10.1002/ceat.70071","DOIUrl":null,"url":null,"abstract":"<p>Perovskite oxide due to their structural versatility and compositional flexibility shows potential catalytic performance for redox reactions. So, they can be one of most suitable catalysts to study their effect and mechanism of thermal decomposition of ammonium perchlorate (AP). Here, nano-dimensional perovskite oxide of LaCo<i><sub>x</sub></i>Mn<sub>1−</sub><i><sub>x</sub></i>O<sub>3</sub> (<i>x</i> = 0.2, 0.4, 0.6, 0.8) was synthesized by citric acid sol–gel method and applied as catalyst for thermal decomposition of AP. Structural characterization was studied using various techniques like powder X-ray diffraction (XRD), SEM-EDX, FTIR, UV–VIS spectroscopy, Raman spectroscopy, and Brunauer–Emmett–Teller (BET) analysis. DSC, DTA, TG, and DTG thermal analysis results confirm that LaCo<sub>0.8</sub>Mn<sub>0.2</sub>O<sub>3</sub> shows best catalyst performance among all. Co metal facilitates the electron transition from CB to VB to create a greater number of reactive sites on the catalyst surface to absorb NH<sub>3</sub> and accelerate the thermal decomposition of AP. So, it can conclude that a higher content of Co metal facilitates the better catalytic performance.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 7","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"LaCoxMn1−xO3 Perovskite Oxide: Its Synthesis and Catalytic Application in Thermal Study of AP\",\"authors\":\"Pragnesh N. Dave,&nbsp;Taruna Likhariya,&nbsp;Shalini Chaturvedi\",\"doi\":\"10.1002/ceat.70071\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Perovskite oxide due to their structural versatility and compositional flexibility shows potential catalytic performance for redox reactions. So, they can be one of most suitable catalysts to study their effect and mechanism of thermal decomposition of ammonium perchlorate (AP). Here, nano-dimensional perovskite oxide of LaCo<i><sub>x</sub></i>Mn<sub>1−</sub><i><sub>x</sub></i>O<sub>3</sub> (<i>x</i> = 0.2, 0.4, 0.6, 0.8) was synthesized by citric acid sol–gel method and applied as catalyst for thermal decomposition of AP. Structural characterization was studied using various techniques like powder X-ray diffraction (XRD), SEM-EDX, FTIR, UV–VIS spectroscopy, Raman spectroscopy, and Brunauer–Emmett–Teller (BET) analysis. DSC, DTA, TG, and DTG thermal analysis results confirm that LaCo<sub>0.8</sub>Mn<sub>0.2</sub>O<sub>3</sub> shows best catalyst performance among all. Co metal facilitates the electron transition from CB to VB to create a greater number of reactive sites on the catalyst surface to absorb NH<sub>3</sub> and accelerate the thermal decomposition of AP. So, it can conclude that a higher content of Co metal facilitates the better catalytic performance.</p>\",\"PeriodicalId\":10083,\"journal\":{\"name\":\"Chemical Engineering & Technology\",\"volume\":\"48 7\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Engineering & Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/ceat.70071\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering & Technology","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ceat.70071","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

摘要

钙钛矿氧化物由于其结构的通用性和组成的灵活性,在氧化还原反应中表现出潜在的催化性能。因此,它们是研究高氯酸铵热分解效果和机理的最合适的催化剂之一。本文采用柠檬酸溶胶-凝胶法合成了LaCoxMn1−xO3 (x = 0.2, 0.4, 0.6, 0.8)的纳米钙钛矿氧化物,并将其作为AP热分解的催化剂。采用粉末x射线衍射(XRD)、SEM-EDX、FTIR、UV-VIS光谱、拉曼光谱和bruauer - emmett - teller (BET)分析等技术对其结构进行了表征。DSC、DTA、TG和DTG热分析结果证实,其中LaCo0.8Mn0.2O3的催化剂性能最好。Co金属有利于电子从CB到VB的跃迁,在催化剂表面产生更多的反应位点,吸收NH3,加速AP的热分解。因此,Co金属含量越高,催化性能越好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
LaCoxMn1−xO3 Perovskite Oxide: Its Synthesis and Catalytic Application in Thermal Study of AP

Perovskite oxide due to their structural versatility and compositional flexibility shows potential catalytic performance for redox reactions. So, they can be one of most suitable catalysts to study their effect and mechanism of thermal decomposition of ammonium perchlorate (AP). Here, nano-dimensional perovskite oxide of LaCoxMn1−xO3 (x = 0.2, 0.4, 0.6, 0.8) was synthesized by citric acid sol–gel method and applied as catalyst for thermal decomposition of AP. Structural characterization was studied using various techniques like powder X-ray diffraction (XRD), SEM-EDX, FTIR, UV–VIS spectroscopy, Raman spectroscopy, and Brunauer–Emmett–Teller (BET) analysis. DSC, DTA, TG, and DTG thermal analysis results confirm that LaCo0.8Mn0.2O3 shows best catalyst performance among all. Co metal facilitates the electron transition from CB to VB to create a greater number of reactive sites on the catalyst surface to absorb NH3 and accelerate the thermal decomposition of AP. So, it can conclude that a higher content of Co metal facilitates the better catalytic performance.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Chemical Engineering & Technology
Chemical Engineering & Technology 工程技术-工程:化工
CiteScore
3.80
自引率
4.80%
发文量
315
审稿时长
5.5 months
期刊介绍: This is the journal for chemical engineers looking for first-hand information in all areas of chemical and process engineering. Chemical Engineering & Technology is: Competent with contributions written and refereed by outstanding professionals from around the world. Essential because it is an international forum for the exchange of ideas and experiences. Topical because its articles treat the very latest developments in the field.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信