催化剂负载、离子含量和碳负载对直接异丙醇燃料电池性能的影响

IF 5.4 Q2 CHEMISTRY, PHYSICAL
Pascal Hauenstein , Iosif Mangoufis-Giasin , Dominik Seeberger , Peter Wasserscheid , Karl J.J. Mayrhofer , Ioannis Katsounaros , Simon Thiele
{"title":"催化剂负载、离子含量和碳负载对直接异丙醇燃料电池性能的影响","authors":"Pascal Hauenstein ,&nbsp;Iosif Mangoufis-Giasin ,&nbsp;Dominik Seeberger ,&nbsp;Peter Wasserscheid ,&nbsp;Karl J.J. Mayrhofer ,&nbsp;Ioannis Katsounaros ,&nbsp;Simon Thiele","doi":"10.1016/j.powera.2021.100064","DOIUrl":null,"url":null,"abstract":"<div><p>Liquid Organic Hydrogen Carriers (LOHC) offer a promising solution for hydrogen storage in the existing infrastructure for conventional fuels. Within this framework, the isopropanol/acetone couple as a light-LOHC system is used to generate electricity in a direct isopropanol fuel cell (DIFC). This work focuses on the impact of catalyst loading, ionomer content and catalyst support on the performance of DIFCs. We achieve a performance rise from 95 mW cm<sup>-2</sup> to 219 mW cm<sup>-2</sup> under air operation by increasing the anode catalyst loading from 0.5 mg cm<sup>-2</sup> to 4 mg cm<sup>-2</sup>, which can be attributed to the increased abundance of active catalyst sites with higher loadings. In contrast, we find that the cathode loading for the oxygen reduction reaction (ORR) plays a minor role in the performance of DIFCs. Therefore, the cathode loading can be minimized to decrease the total amount of platinum-group metals and, consequently, to save cost. It was also found that an ionomer content of 30% on the anode side is optimal. Additionally, different carbon supports were investigated, where advanced high surface area carbon support showed superior performance to <span>Vulcan</span> with an increase of 20% in power density, motivating the development of new carbon supports for DIFCs.</p></div>","PeriodicalId":34318,"journal":{"name":"Journal of Power Sources Advances","volume":null,"pages":null},"PeriodicalIF":5.4000,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.powera.2021.100064","citationCount":"3","resultStr":"{\"title\":\"Impact of catalyst loading, ionomer content, and carbon support on the performance of direct isopropanol fuel cells\",\"authors\":\"Pascal Hauenstein ,&nbsp;Iosif Mangoufis-Giasin ,&nbsp;Dominik Seeberger ,&nbsp;Peter Wasserscheid ,&nbsp;Karl J.J. Mayrhofer ,&nbsp;Ioannis Katsounaros ,&nbsp;Simon Thiele\",\"doi\":\"10.1016/j.powera.2021.100064\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Liquid Organic Hydrogen Carriers (LOHC) offer a promising solution for hydrogen storage in the existing infrastructure for conventional fuels. Within this framework, the isopropanol/acetone couple as a light-LOHC system is used to generate electricity in a direct isopropanol fuel cell (DIFC). This work focuses on the impact of catalyst loading, ionomer content and catalyst support on the performance of DIFCs. We achieve a performance rise from 95 mW cm<sup>-2</sup> to 219 mW cm<sup>-2</sup> under air operation by increasing the anode catalyst loading from 0.5 mg cm<sup>-2</sup> to 4 mg cm<sup>-2</sup>, which can be attributed to the increased abundance of active catalyst sites with higher loadings. In contrast, we find that the cathode loading for the oxygen reduction reaction (ORR) plays a minor role in the performance of DIFCs. Therefore, the cathode loading can be minimized to decrease the total amount of platinum-group metals and, consequently, to save cost. It was also found that an ionomer content of 30% on the anode side is optimal. Additionally, different carbon supports were investigated, where advanced high surface area carbon support showed superior performance to <span>Vulcan</span> with an increase of 20% in power density, motivating the development of new carbon supports for DIFCs.</p></div>\",\"PeriodicalId\":34318,\"journal\":{\"name\":\"Journal of Power Sources Advances\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.4000,\"publicationDate\":\"2021-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.powera.2021.100064\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Power Sources Advances\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666248521000196\",\"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":"Journal of Power Sources Advances","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666248521000196","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: 3

摘要

液态有机氢载体(LOHC)为现有的传统燃料基础设施中的氢储存提供了一个很有前途的解决方案。在此框架下,异丙醇/丙酮偶对作为轻lohc系统用于直接异丙醇燃料电池(DIFC)的发电。本文主要研究了催化剂负载、离子含量和催化剂负载对difc性能的影响。通过将阳极催化剂负载从0.5 mg cm-2增加到4 mg cm-2,我们在空气操作下将性能从95 mW cm-2提高到219 mW cm-2,这可以归因于高负载下活性催化剂位点的丰度增加。相比之下,我们发现氧还原反应(ORR)的阴极负载对difc的性能影响较小。因此,阴极负载可以最小化,以减少铂族金属的总量,从而节省成本。阳极侧离子单体含量为30%为最佳。此外,对不同的碳支架进行了研究,其中先进的高表面积碳支架的性能优于Vulcan,功率密度提高了20%,推动了新型difc碳支架的开发。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of catalyst loading, ionomer content, and carbon support on the performance of direct isopropanol fuel cells

Liquid Organic Hydrogen Carriers (LOHC) offer a promising solution for hydrogen storage in the existing infrastructure for conventional fuels. Within this framework, the isopropanol/acetone couple as a light-LOHC system is used to generate electricity in a direct isopropanol fuel cell (DIFC). This work focuses on the impact of catalyst loading, ionomer content and catalyst support on the performance of DIFCs. We achieve a performance rise from 95 mW cm-2 to 219 mW cm-2 under air operation by increasing the anode catalyst loading from 0.5 mg cm-2 to 4 mg cm-2, which can be attributed to the increased abundance of active catalyst sites with higher loadings. In contrast, we find that the cathode loading for the oxygen reduction reaction (ORR) plays a minor role in the performance of DIFCs. Therefore, the cathode loading can be minimized to decrease the total amount of platinum-group metals and, consequently, to save cost. It was also found that an ionomer content of 30% on the anode side is optimal. Additionally, different carbon supports were investigated, where advanced high surface area carbon support showed superior performance to Vulcan with an increase of 20% in power density, motivating the development of new carbon supports for DIFCs.

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
9.10
自引率
0.00%
发文量
18
审稿时长
64 days
×
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