基于 3d-4 f 轨道耦合的掺 N 碳支撑 FePr 纳米粒子的封闭热解合成,用于高效氧还原

IF 5.8 2区 材料科学 Q2 CHEMISTRY, PHYSICAL
Ran Ji, Chen-Yang Wang, Ke-Ming Fang, Jiu-Ju Feng, Lu Zhang, Ai-Jun Wang
{"title":"基于 3d-4 f 轨道耦合的掺 N 碳支撑 FePr 纳米粒子的封闭热解合成,用于高效氧还原","authors":"Ran Ji, Chen-Yang Wang, Ke-Ming Fang, Jiu-Ju Feng, Lu Zhang, Ai-Jun Wang","doi":"10.1016/j.jallcom.2024.177332","DOIUrl":null,"url":null,"abstract":"To meet the growing demand for new energy storage and conversion technologies, there is an urgent need to prepare highly efficient, economical and durable oxygen reduction catalysts that can replace those based on precious. Herein, N-doped porous carbon supported FePr nanoparticles (FePr/NC) from MOFs were prepared by confined adsorption and pyrolysis. The characterizations and electrocatalytic properties of the FePr/NC were investigated in details. The prepared FePr/NC catalyst showed excellent ORR catalytic performance with a half-wave potential (<em>E</em><sub>1/2</sub>) of only 0.87<!-- --> <!-- -->V in a 0.1<!-- --> <!-- -->M KOH solution, outperforming commercial Pt/C catalyst (<em>E</em><sub>1/2</sub> = 0.82<!-- --> <!-- -->V) under the identical conditions. Besides, its onset potential (<em>E</em><sub>onset</sub>) was up to 1.002<!-- --> <!-- -->V), exceeding the Pt/C (<em>E</em><sub>onset</sub> = 0.92<!-- --> <!-- -->V. Moreover, the <em>E</em><sub>1/2</sub> only exhibited a negative shift of 7<!-- --> <!-- -->mV after 2000 cycles, reflecting its significant stability. To understand their exceptional preference for the ORR, the electronic structure of Fe influenced by the doped Pr and the synergistic effect of the FePr nanoparticles with N-doped carbon were investigated. The coupling of Fe's 3d orbitals with Pr's 4<!-- --> <!-- -->f orbitals in FePr significantly enhanced the electrocatalytic activity. This work provides a promising strategy for preparation of high-quality transition metal-based carbon catalysts for green energy devices.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":null,"pages":null},"PeriodicalIF":5.8000,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Confined pyrolysis synthesis of N-doped carbon-supported FePr nanoparticles for efficient oxygen reduction based on 3d–4 f orbital coupling\",\"authors\":\"Ran Ji, Chen-Yang Wang, Ke-Ming Fang, Jiu-Ju Feng, Lu Zhang, Ai-Jun Wang\",\"doi\":\"10.1016/j.jallcom.2024.177332\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"To meet the growing demand for new energy storage and conversion technologies, there is an urgent need to prepare highly efficient, economical and durable oxygen reduction catalysts that can replace those based on precious. Herein, N-doped porous carbon supported FePr nanoparticles (FePr/NC) from MOFs were prepared by confined adsorption and pyrolysis. The characterizations and electrocatalytic properties of the FePr/NC were investigated in details. The prepared FePr/NC catalyst showed excellent ORR catalytic performance with a half-wave potential (<em>E</em><sub>1/2</sub>) of only 0.87<!-- --> <!-- -->V in a 0.1<!-- --> <!-- -->M KOH solution, outperforming commercial Pt/C catalyst (<em>E</em><sub>1/2</sub> = 0.82<!-- --> <!-- -->V) under the identical conditions. Besides, its onset potential (<em>E</em><sub>onset</sub>) was up to 1.002<!-- --> <!-- -->V), exceeding the Pt/C (<em>E</em><sub>onset</sub> = 0.92<!-- --> <!-- -->V. Moreover, the <em>E</em><sub>1/2</sub> only exhibited a negative shift of 7<!-- --> <!-- -->mV after 2000 cycles, reflecting its significant stability. To understand their exceptional preference for the ORR, the electronic structure of Fe influenced by the doped Pr and the synergistic effect of the FePr nanoparticles with N-doped carbon were investigated. The coupling of Fe's 3d orbitals with Pr's 4<!-- --> <!-- -->f orbitals in FePr significantly enhanced the electrocatalytic activity. This work provides a promising strategy for preparation of high-quality transition metal-based carbon catalysts for green energy devices.\",\"PeriodicalId\":344,\"journal\":{\"name\":\"Journal of Alloys and Compounds\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.8000,\"publicationDate\":\"2024-10-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Alloys and Compounds\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jallcom.2024.177332\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Alloys and Compounds","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jallcom.2024.177332","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

摘要

为满足对新型能源储存和转换技术日益增长的需求,迫切需要制备高效、经济、耐用的氧还原催化剂,以取代那些以贵重材料为基础的催化剂。本文通过密闭吸附和热解法制备了N掺杂多孔碳支撑的FePr纳米颗粒(FePr/NC)。对 FePr/NC 的特性和电催化性能进行了详细研究。制备的 FePr/NC 催化剂表现出优异的 ORR 催化性能,在 0.1 M KOH 溶液中的半波电位(E1/2)仅为 0.87 V,优于相同条件下的商用 Pt/C 催化剂(E1/2 = 0.82 V)。此外,其起始电位(Eonset)高达 1.002 V,超过了 Pt/C 催化剂(Eonset = 0.92 V)。为了了解它们对 ORR 的特殊偏好,我们研究了掺杂 Pr 对 Fe 电子结构的影响以及 FePr 纳米粒子与掺杂 N 的碳的协同效应。FePr 中 Fe 的 3d 轨道与 Pr 的 4 f 轨道的耦合显著增强了电催化活性。这项工作为制备用于绿色能源设备的高质量过渡金属基碳催化剂提供了一种前景广阔的策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Confined pyrolysis synthesis of N-doped carbon-supported FePr nanoparticles for efficient oxygen reduction based on 3d–4 f orbital coupling

Confined pyrolysis synthesis of N-doped carbon-supported FePr nanoparticles for efficient oxygen reduction based on 3d–4 f orbital coupling
To meet the growing demand for new energy storage and conversion technologies, there is an urgent need to prepare highly efficient, economical and durable oxygen reduction catalysts that can replace those based on precious. Herein, N-doped porous carbon supported FePr nanoparticles (FePr/NC) from MOFs were prepared by confined adsorption and pyrolysis. The characterizations and electrocatalytic properties of the FePr/NC were investigated in details. The prepared FePr/NC catalyst showed excellent ORR catalytic performance with a half-wave potential (E1/2) of only 0.87 V in a 0.1 M KOH solution, outperforming commercial Pt/C catalyst (E1/2 = 0.82 V) under the identical conditions. Besides, its onset potential (Eonset) was up to 1.002 V), exceeding the Pt/C (Eonset = 0.92 V. Moreover, the E1/2 only exhibited a negative shift of 7 mV after 2000 cycles, reflecting its significant stability. To understand their exceptional preference for the ORR, the electronic structure of Fe influenced by the doped Pr and the synergistic effect of the FePr nanoparticles with N-doped carbon were investigated. The coupling of Fe's 3d orbitals with Pr's 4 f orbitals in FePr significantly enhanced the electrocatalytic activity. This work provides a promising strategy for preparation of high-quality transition metal-based carbon catalysts for green energy devices.
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
Journal of Alloys and Compounds
Journal of Alloys and Compounds 工程技术-材料科学:综合
CiteScore
11.10
自引率
14.50%
发文量
5146
审稿时长
67 days
期刊介绍: The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.
×
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:481959085
Book学术官方微信