策略性掺杂镍改善了 Bi3O4Br 在碱性水中的电催化 H2 产率

IF 3.2 Q2 CHEMISTRY, PHYSICAL
Energy advances Pub Date : 2024-05-24 DOI:10.1039/D4YA00228H
Manodip Pal, Rathindranath Biswas, Sanmitra Barman and Arnab Dutta
{"title":"策略性掺杂镍改善了 Bi3O4Br 在碱性水中的电催化 H2 产率","authors":"Manodip Pal, Rathindranath Biswas, Sanmitra Barman and Arnab Dutta","doi":"10.1039/D4YA00228H","DOIUrl":null,"url":null,"abstract":"<p >Establishing a cost-effective and efficient electrocatalytic pathway for the hydrogen evolution reaction (HER) is the key to our quest for a carbon-neutral energy landscape. We report a simple and straightforward approach to synthesize an efficient, stable, and low-cost noble metal-free Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br electrocatalyst. Tactical doping of Ni ions into Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br effectively enhanced the conductivity, accelerated the charge transfer process, and provided more catalytic active sites to significantly boost the alkaline electrochemical HER performance of Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br. This Ni-doped Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br exhibited a lower overpotential of 662 mV compared to that of Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br (736 mV) at a higher current density (50 mA cm<small><sup>−2</sup></small>). Additionally, the HER kinetics were also enhanced in terms of Tafel slope for this doped material (159 mV dec<small><sup>−1</sup></small>) compared to the pristine Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br (245 mV dec<small><sup>−1</sup></small>), which coincides with a significant improvement in the mass activity (52 A g<small><sup>−1</sup></small> to 98 A g<small><sup>−1</sup></small>). Notably, the overpotential of Ni-doped Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br was further reduced to 614 mV at the same current density of 50 mA cm<small><sup>−2</sup></small> during photoelectrochemical HER performance testing, and the faradaic efficiency was improved from 79% to 87%. Finally, an enhanced durability of the material was observed for Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br following the Ni-doping. Hence, this strategy highlights the importance of unravelling upgraded catalytic behaviour for abundant materials with rational doping.</p>","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ya/d4ya00228h?page=search","citationCount":"0","resultStr":"{\"title\":\"Strategic Ni-doping improved electrocatalytic H2 production by Bi3O4Br in alkaline water†\",\"authors\":\"Manodip Pal, Rathindranath Biswas, Sanmitra Barman and Arnab Dutta\",\"doi\":\"10.1039/D4YA00228H\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Establishing a cost-effective and efficient electrocatalytic pathway for the hydrogen evolution reaction (HER) is the key to our quest for a carbon-neutral energy landscape. We report a simple and straightforward approach to synthesize an efficient, stable, and low-cost noble metal-free Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br electrocatalyst. Tactical doping of Ni ions into Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br effectively enhanced the conductivity, accelerated the charge transfer process, and provided more catalytic active sites to significantly boost the alkaline electrochemical HER performance of Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br. This Ni-doped Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br exhibited a lower overpotential of 662 mV compared to that of Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br (736 mV) at a higher current density (50 mA cm<small><sup>−2</sup></small>). Additionally, the HER kinetics were also enhanced in terms of Tafel slope for this doped material (159 mV dec<small><sup>−1</sup></small>) compared to the pristine Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br (245 mV dec<small><sup>−1</sup></small>), which coincides with a significant improvement in the mass activity (52 A g<small><sup>−1</sup></small> to 98 A g<small><sup>−1</sup></small>). Notably, the overpotential of Ni-doped Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br was further reduced to 614 mV at the same current density of 50 mA cm<small><sup>−2</sup></small> during photoelectrochemical HER performance testing, and the faradaic efficiency was improved from 79% to 87%. Finally, an enhanced durability of the material was observed for Bi<small><sub>3</sub></small>O<small><sub>4</sub></small>Br following the Ni-doping. Hence, this strategy highlights the importance of unravelling upgraded catalytic behaviour for abundant materials with rational doping.</p>\",\"PeriodicalId\":72913,\"journal\":{\"name\":\"Energy advances\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-05-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://pubs.rsc.org/en/content/articlepdf/2024/ya/d4ya00228h?page=search\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Energy advances\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/ya/d4ya00228h\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy advances","FirstCategoryId":"1085","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ya/d4ya00228h","RegionNum":0,"RegionCategory":null,"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

为氢进化反应(HER)建立一种经济高效的电催化途径是我们实现碳中和能源格局的关键。我们报告了一种简单直接的方法来合成高效、稳定和低成本的无贵金属 Bi3O4Br 电催化剂。在 Bi3O4Br 中战术性地掺入镍离子可有效提高电导率,加速电荷转移过程,并提供更多的催化活性位点,从而显著提高 Bi3O4Br 的碱性电化学 HER 性能。 这种掺镍的 Bi3O4Br 在更高的电流密度(100 mA/cm2)下工作时,能量效率提高了 17%。此外,与原始 Bi3O4Br 相比,这种掺杂材料的 HER 动力学在塔菲尔斜率方面也提高了 35%,这与质量活性的显著提高(从 52 A/g 提高到 98 A/g)相吻合。值得注意的是,掺杂镍的 Bi3O4Br 在光电化学 HER 性能中的过电位进一步降低了 23%,法拉第效率提高了 10%。最后,掺杂镍后,Bi3O4Br 材料的耐久性得到了提高。因此,这一策略强调了通过合理掺杂来揭示丰富材料的升级催化行为的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Strategic Ni-doping improved electrocatalytic H2 production by Bi3O4Br in alkaline water†

Strategic Ni-doping improved electrocatalytic H2 production by Bi3O4Br in alkaline water†

Establishing a cost-effective and efficient electrocatalytic pathway for the hydrogen evolution reaction (HER) is the key to our quest for a carbon-neutral energy landscape. We report a simple and straightforward approach to synthesize an efficient, stable, and low-cost noble metal-free Bi3O4Br electrocatalyst. Tactical doping of Ni ions into Bi3O4Br effectively enhanced the conductivity, accelerated the charge transfer process, and provided more catalytic active sites to significantly boost the alkaline electrochemical HER performance of Bi3O4Br. This Ni-doped Bi3O4Br exhibited a lower overpotential of 662 mV compared to that of Bi3O4Br (736 mV) at a higher current density (50 mA cm−2). Additionally, the HER kinetics were also enhanced in terms of Tafel slope for this doped material (159 mV dec−1) compared to the pristine Bi3O4Br (245 mV dec−1), which coincides with a significant improvement in the mass activity (52 A g−1 to 98 A g−1). Notably, the overpotential of Ni-doped Bi3O4Br was further reduced to 614 mV at the same current density of 50 mA cm−2 during photoelectrochemical HER performance testing, and the faradaic efficiency was improved from 79% to 87%. Finally, an enhanced durability of the material was observed for Bi3O4Br following the Ni-doping. Hence, this strategy highlights the importance of unravelling upgraded catalytic behaviour for abundant materials with rational doping.

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
CiteScore
1.80
自引率
0.00%
发文量
0
×
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