{"title":"四聚4-氨基苯基卟啉锰偶联石墨烯量子点的电催化活性","authors":"Mbulelo Jokazi, L. Mpeta, T. Nyokong","doi":"10.2139/ssrn.3856018","DOIUrl":null,"url":null,"abstract":"A manganese tetra 4-aminophenyl porphyrin (MnTAPP) was synthesized and conjugated to graphene quantum dots (GQDs) through stacking and covalent linkage to give MnTAPP GQDs and MnTAPP@GQDs. The electrochemical behavior was tested by Cyclic voltammetry and chronoamperometry towards hydrazine. Both methods of conjugation improved the activity of the electrocatalysis compared to individual components. MnTAPP@GQDs showed better catalytic activity of 4.36 × 10 2 Ms -1 and lowest LoD of 0.00237 µM followed by MnTAPP GQDs.","PeriodicalId":18279,"journal":{"name":"MatSciRN: Computational Studies of Inorganic & Organic Materials (Topic)","volume":"28 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electrocatalytic Activity of Manganese Tetra 4-Aminophenyl Porphyrin Conjugated to Graphene Quantum Dots\",\"authors\":\"Mbulelo Jokazi, L. Mpeta, T. Nyokong\",\"doi\":\"10.2139/ssrn.3856018\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A manganese tetra 4-aminophenyl porphyrin (MnTAPP) was synthesized and conjugated to graphene quantum dots (GQDs) through stacking and covalent linkage to give MnTAPP GQDs and MnTAPP@GQDs. The electrochemical behavior was tested by Cyclic voltammetry and chronoamperometry towards hydrazine. Both methods of conjugation improved the activity of the electrocatalysis compared to individual components. MnTAPP@GQDs showed better catalytic activity of 4.36 × 10 2 Ms -1 and lowest LoD of 0.00237 µM followed by MnTAPP GQDs.\",\"PeriodicalId\":18279,\"journal\":{\"name\":\"MatSciRN: Computational Studies of Inorganic & Organic Materials (Topic)\",\"volume\":\"28 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"MatSciRN: Computational Studies of Inorganic & Organic Materials (Topic)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2139/ssrn.3856018\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"MatSciRN: Computational Studies of Inorganic & Organic Materials (Topic)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3856018","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
合成了锰四元4-氨基苯基卟啉(MnTAPP)，并通过堆叠和共价键与石墨烯量子点(GQDs)偶联，得到MnTAPP GQDs和MnTAPP@GQDs。用循环伏安法和计时伏安法测试了其对肼的电化学行为。与单个组分相比，这两种偶联方法都提高了电催化活性。MnTAPP@GQDs的催化活性为4.36 × 10 2 Ms -1，最低LoD为0.00237µM，其次是MnTAPP GQDs。
Electrocatalytic Activity of Manganese Tetra 4-Aminophenyl Porphyrin Conjugated to Graphene Quantum Dots
A manganese tetra 4-aminophenyl porphyrin (MnTAPP) was synthesized and conjugated to graphene quantum dots (GQDs) through stacking and covalent linkage to give MnTAPP GQDs and MnTAPP@GQDs. The electrochemical behavior was tested by Cyclic voltammetry and chronoamperometry towards hydrazine. Both methods of conjugation improved the activity of the electrocatalysis compared to individual components. MnTAPP@GQDs showed better catalytic activity of 4.36 × 10 2 Ms -1 and lowest LoD of 0.00237 µM followed by MnTAPP GQDs.
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