Co-Fe-Ni-Cr-V-Zr共晶高熵合金的电催化行为

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Bulletin of Materials Science Pub Date : 2024-12-27 DOI:10.1007/s12034-024-03367-1

Girish Khanna Raja Mohan, Mayank K Singh, Dhirendra Kumar Rai, Sumanta Samal

{"title":"Co-Fe-Ni-Cr-V-Zr共晶高熵合金的电催化行为","authors":"Girish Khanna Raja Mohan, Mayank K Singh, Dhirendra Kumar Rai, Sumanta Samal","doi":"10.1007/s12034-024-03367-1","DOIUrl":null,"url":null,"abstract":"<div>The electrocatalytic behaviour of bulk eutectic high entropy alloys (EHEAs) has rarely been explored despite possessing large electrocatalytic active sites. In this work, bulk EHEA has been investigated as an electrocatalyst considering hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The results depict good kinetic behaviour, evidenced by a low Tafel slope of 251 mV dec−1 and an overpotential of −0.415 V to achieve −0.01 A cm−2 for HER. Similarly, for OER, a low Tafel slope of 115 mV dec−1 and overpotential of 1.5879 V to achieve 0.01 A cm−2, with good long-term electrolysis stability for 24 h are achieved. The electrochemically active surface area of EHEA catalyst for both HER and OER is 0.033 and 0.0727 cm2, respectively.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"48 1","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electrocatalytic behaviour of Co–Fe–Ni–Cr–V–Zr eutectic high entropy alloy\",\"authors\":\"Girish Khanna Raja Mohan, Mayank K Singh, Dhirendra Kumar Rai, Sumanta Samal\",\"doi\":\"10.1007/s12034-024-03367-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>The electrocatalytic behaviour of bulk eutectic high entropy alloys (EHEAs) has rarely been explored despite possessing large electrocatalytic active sites. In this work, bulk EHEA has been investigated as an electrocatalyst considering hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The results depict good kinetic behaviour, evidenced by a low Tafel slope of 251 mV dec−1 and an overpotential of −0.415 V to achieve −0.01 A cm−2 for HER. Similarly, for OER, a low Tafel slope of 115 mV dec−1 and overpotential of 1.5879 V to achieve 0.01 A cm−2, with good long-term electrolysis stability for 24 h are achieved. The electrochemically active surface area of EHEA catalyst for both HER and OER is 0.033 and 0.0727 cm2, respectively.</div>\",\"PeriodicalId\":502,\"journal\":{\"name\":\"Bulletin of Materials Science\",\"volume\":\"48 1\",\"pages\":\"\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2024-12-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12034-024-03367-1\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12034-024-03367-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

体共晶高熵合金（EHEAs）虽然具有较大的电催化活性位点，但对其电催化行为的研究却很少。在这项工作中，考虑析氢反应（HER）和析氧反应（OER），研究了体EHEA作为电催化剂的作用。结果显示了良好的动力学行为，证明了HER的低Tafel斜率为251 mV dec−1，过电位为- 0.415 V，达到- 0.01 a cm−2。同样，对于OER， Tafel斜率为115 mV dec−1，过电位为1.5879 V，达到0.01 a cm−2，具有良好的24 h长期电解稳定性。HER和OER的EHEA催化剂的电化学活性表面积分别为0.033和0.0727 cm2。

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

Electrocatalytic behaviour of Co–Fe–Ni–Cr–V–Zr eutectic high entropy alloy

The electrocatalytic behaviour of bulk eutectic high entropy alloys (EHEAs) has rarely been explored despite possessing large electrocatalytic active sites. In this work, bulk EHEA has been investigated as an electrocatalyst considering hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The results depict good kinetic behaviour, evidenced by a low Tafel slope of 251 mV dec⁻¹ and an overpotential of −0.415 V to achieve −0.01 A cm⁻² for HER. Similarly, for OER, a low Tafel slope of 115 mV dec⁻¹ and overpotential of 1.5879 V to achieve 0.01 A cm⁻², with good long-term electrolysis stability for 24 h are achieved. The electrochemically active surface area of EHEA catalyst for both HER and OER is 0.033 and 0.0727 cm², respectively.

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

Bulletin of Materials Science 工程技术-材料科学：综合

CiteScore

3.40

自引率

5.60%

发文量

209

审稿时长

11.5 months

期刊介绍： The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.