{"title":"渗碳对热等离子体合成的(Ni0.2 Co0.2 Cr0.2 Mn0.2 V0.2)3O4高熵氧化物纳米粒子分水性能的影响","authors":"Amarnath Pasupathi , Ragunath Madhu , Subrata Kundu , Yugeswaran Subramaniam","doi":"10.1016/j.electacta.2024.144621","DOIUrl":null,"url":null,"abstract":"<div><p>A high entropy oxides (HEOs) has been proposed as a promising electrocatalyst for electrochemical water splitting reaction owing to their distinctive catalytic activity, stability, and tuneable electronic structure. In this work, a carbon infused HEOs (Ni<sub>0.2</sub> Co<sub>0.2</sub> Cr<sub>0.2</sub> Mn<sub>0.2</sub> V<sub>0.2</sub>)<sub>3</sub>O<sub>4</sub> nanoparticles were synthesized via a single step process through a carbonaceous thermal plasma (Ar-CO<sub>2</sub>CH<sub>4</sub><sub><img></sub>) medium. Here, carbon infused HEOs were utilized as an electrocatalyst for water splitting reaction in 1 M KOH electrolyte. A Carbon rich HEOs (HEO C6) nanoparticle exhibits excellent oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) performance with an overpotential of 243 and 217 mV to attain a current density of 50 mA cm<sup>-2</sup>, respectively. The fabricated two-electrode device requires only a 1.596 V as cell voltage to meet a current density of 10 mA cm<sup>-2</sup>. This study provides a new platform for a large-scale hydrogen production by utilizing carbon supported HEOs as an electrocatalyst.</p></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":null,"pages":null},"PeriodicalIF":5.5000,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of carbon infusion on water splitting performance of (Ni0.2 Co0.2 Cr0.2 Mn0.2 V0.2)3O4 high entropy oxides nanoparticle synthesized via thermal plasma\",\"authors\":\"Amarnath Pasupathi , Ragunath Madhu , Subrata Kundu , Yugeswaran Subramaniam\",\"doi\":\"10.1016/j.electacta.2024.144621\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A high entropy oxides (HEOs) has been proposed as a promising electrocatalyst for electrochemical water splitting reaction owing to their distinctive catalytic activity, stability, and tuneable electronic structure. In this work, a carbon infused HEOs (Ni<sub>0.2</sub> Co<sub>0.2</sub> Cr<sub>0.2</sub> Mn<sub>0.2</sub> V<sub>0.2</sub>)<sub>3</sub>O<sub>4</sub> nanoparticles were synthesized via a single step process through a carbonaceous thermal plasma (Ar-CO<sub>2</sub>CH<sub>4</sub><sub><img></sub>) medium. Here, carbon infused HEOs were utilized as an electrocatalyst for water splitting reaction in 1 M KOH electrolyte. A Carbon rich HEOs (HEO C6) nanoparticle exhibits excellent oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) performance with an overpotential of 243 and 217 mV to attain a current density of 50 mA cm<sup>-2</sup>, respectively. The fabricated two-electrode device requires only a 1.596 V as cell voltage to meet a current density of 10 mA cm<sup>-2</sup>. This study provides a new platform for a large-scale hydrogen production by utilizing carbon supported HEOs as an electrocatalyst.</p></div>\",\"PeriodicalId\":305,\"journal\":{\"name\":\"Electrochimica Acta\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.5000,\"publicationDate\":\"2024-06-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrochimica Acta\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0013468624008612\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochimica Acta","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0013468624008612","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
摘要
高熵氧化物(HEOs)因其独特的催化活性、稳定性和可调整的电子结构,被认为是一种很有前途的电化学分水反应电催化剂。在这项工作中,通过碳质热等离子体(Ar-COCH)介质,采用一步法合成了一种碳注入 HEOs(镍钴铬锰钒)O 纳米粒子。在 1 M KOH 电解液中,注入碳的 HEOs 被用作水分离反应的电催化剂。富碳 HEOs(HEO C6)纳米粒子表现出优异的氧进化反应(OER)和氢进化反应(HER)性能,过电位分别为 243 mV 和 217 mV,电流密度为 50 mA cm。制备的双电极装置只需要 1.596 V 的电池电压就能达到 10 mA cm 的电流密度。这项研究为利用碳支撑的 HEOs 作为电催化剂进行大规模制氢提供了一个新平台。
Effect of carbon infusion on water splitting performance of (Ni0.2 Co0.2 Cr0.2 Mn0.2 V0.2)3O4 high entropy oxides nanoparticle synthesized via thermal plasma
A high entropy oxides (HEOs) has been proposed as a promising electrocatalyst for electrochemical water splitting reaction owing to their distinctive catalytic activity, stability, and tuneable electronic structure. In this work, a carbon infused HEOs (Ni0.2 Co0.2 Cr0.2 Mn0.2 V0.2)3O4 nanoparticles were synthesized via a single step process through a carbonaceous thermal plasma (Ar-CO2CH4) medium. Here, carbon infused HEOs were utilized as an electrocatalyst for water splitting reaction in 1 M KOH electrolyte. A Carbon rich HEOs (HEO C6) nanoparticle exhibits excellent oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) performance with an overpotential of 243 and 217 mV to attain a current density of 50 mA cm-2, respectively. The fabricated two-electrode device requires only a 1.596 V as cell voltage to meet a current density of 10 mA cm-2. This study provides a new platform for a large-scale hydrogen production by utilizing carbon supported HEOs as an electrocatalyst.
期刊介绍:
Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.