作为整体水分离高效双功能电催化剂的 FexMo1-xS2/CNT@CC 纳米片

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-12-04 DOI:10.15251/djnb.2023.184.1473

Z. W. Chen, J. L. Zhu, J. Liu, A. X. Wei

{"title":"作为整体水分离高效双功能电催化剂的 FexMo1-xS2/CNT@CC 纳米片","authors":"Z. W. Chen, J. L. Zhu, J. Liu, A. X. Wei","doi":"10.15251/djnb.2023.184.1473","DOIUrl":null,"url":null,"abstract":"The FexMo1-xS2 nanosheets with different Fe doping content x were grown on carbon nanotubes @ carbon cloth (CNT@CC) substrate using a hydrothermal method by varying the molar ratio of FeSO4·7H2O to Na2MoO4·2H2O in the precursor solution. The effect on HER, OER and overall water splitting (OWS) performance of Fe doping content x were studied. The FexMo1-xS2 nanosheets have the optimal HER and OWS performance for x=0.050 and the optimal OER performance for x=0.075. The overpotential at current density of 100 mA/cm2 and Tafel slope are 198 mV and 44.7 mVdec-1 for HER; and they are 279 mV and 24.5 mV/dec for OER in 1 M KOH electrolyte. The electrolytic cell using Fe0.05Mo0.95S2/ CNT@CC as both cathode and anode achieves a voltage of 1.69 V at current density of 100 mAcm-2 . The bifunctional catalytic activities of the FexMo1-xS2/ CNT@CC catalyst come from the synergistic effect between FexMo1-xS2 nanosheets and CNT.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"83 15","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"FexMo1-xS2/CNT@CC nanosheets as an efficient bifunctional electrocatalyst for overall water splitting\",\"authors\":\"Z. W. Chen, J. L. Zhu, J. Liu, A. X. Wei\",\"doi\":\"10.15251/djnb.2023.184.1473\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The FexMo1-xS2 nanosheets with different Fe doping content x were grown on carbon nanotubes @ carbon cloth (CNT@CC) substrate using a hydrothermal method by varying the molar ratio of FeSO4·7H2O to Na2MoO4·2H2O in the precursor solution. The effect on HER, OER and overall water splitting (OWS) performance of Fe doping content x were studied. The FexMo1-xS2 nanosheets have the optimal HER and OWS performance for x=0.050 and the optimal OER performance for x=0.075. The overpotential at current density of 100 mA/cm2 and Tafel slope are 198 mV and 44.7 mVdec-1 for HER; and they are 279 mV and 24.5 mV/dec for OER in 1 M KOH electrolyte. The electrolytic cell using Fe0.05Mo0.95S2/ CNT@CC as both cathode and anode achieves a voltage of 1.69 V at current density of 100 mAcm-2 . The bifunctional catalytic activities of the FexMo1-xS2/ CNT@CC catalyst come from the synergistic effect between FexMo1-xS2 nanosheets and CNT.\",\"PeriodicalId\":11233,\"journal\":{\"name\":\"Digest Journal of Nanomaterials and Biostructures\",\"volume\":\"83 15\",\"pages\":\"\"},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2023-12-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Digest Journal of Nanomaterials and Biostructures\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.15251/djnb.2023.184.1473\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Digest Journal of Nanomaterials and Biostructures","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.15251/djnb.2023.184.1473","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

通过改变前驱体溶液中FeSO4·7H2O与Na2MoO4·2H2O的摩尔比，采用水热法在碳纳米管@碳布(CNT@CC)衬底上生长出不同Fe掺杂量x的FexMo1-xS2纳米片。研究了Fe掺杂量x对HER、OER和总水分解性能的影响。FexMo1-xS2纳米片在x=0.050时具有最佳的HER和OWS性能，在x=0.075时具有最佳的OER性能。电流密度为100 mA/cm2时的过电位为198 mV, Tafel斜率为44.7 mVdec-1;在1 M KOH电解液中，OER分别为279 mV和24.5 mV/dec。以Fe0.05Mo0.95S2/ CNT@CC为正极和负极的电解槽在电流密度为100 mAcm-2时获得了1.69 V的电压。FexMo1-xS2/ CNT@CC催化剂的双功能催化活性来自于FexMo1-xS2纳米片与碳纳米管之间的协同作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

FexMo1-xS2/CNT@CC nanosheets as an efficient bifunctional electrocatalyst for overall water splitting

The FexMo1-xS2 nanosheets with different Fe doping content x were grown on carbon nanotubes @ carbon cloth (CNT@CC) substrate using a hydrothermal method by varying the molar ratio of FeSO4·7H2O to Na2MoO4·2H2O in the precursor solution. The effect on HER, OER and overall water splitting (OWS) performance of Fe doping content x were studied. The FexMo1-xS2 nanosheets have the optimal HER and OWS performance for x=0.050 and the optimal OER performance for x=0.075. The overpotential at current density of 100 mA/cm2 and Tafel slope are 198 mV and 44.7 mVdec-1 for HER; and they are 279 mV and 24.5 mV/dec for OER in 1 M KOH electrolyte. The electrolytic cell using Fe0.05Mo0.95S2/ CNT@CC as both cathode and anode achieves a voltage of 1.69 V at current density of 100 mAcm-2 . The bifunctional catalytic activities of the FexMo1-xS2/ CNT@CC catalyst come from the synergistic effect between FexMo1-xS2 nanosheets and CNT.

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