Title: Restructured <scp>Co‐Ru</scp> alloys via electrodeposition for efficient hydrogen production in proton exchange membrane water electrolyzers
Abstract: International Journal of Energy ResearchVolume 46, Issue 6 p. 7975-7987 RESEARCH ARTICLE Restructured Co-Ru alloys via electrodeposition for efficient hydrogen production in proton exchange membrane water electrolyzers Taegyeom Lee, Taegyeom Lee School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorYoonsu Park, Yoonsu Park School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorHoyoung Kim, Hoyoung Kim orcid.org/0000-0002-5580-6373 School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorYun-Kun Hong, Yun-Kun Hong School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorEunseo Hwang, Eunseo Hwang School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorMinyoung Kim, Minyoung Kim School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorSoo-Kil Kim, Corresponding Author Soo-Kil Kim [email protected] orcid.org/0000-0002-1753-7037 School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea Correspondence Soo-Kil Kim and Don-Hyung Ha, School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea. Email: [email protected] (S.-K.K.) and [email protected] (D.-H.H.)Search for more papers by this authorDon-Hyung Ha, Corresponding Author Don-Hyung Ha [email protected] orcid.org/0000-0003-4744-6571 School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea Correspondence Soo-Kil Kim and Don-Hyung Ha, School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea. Email: [email protected] (S.-K.K.) and [email protected] (D.-H.H.)Search for more papers by this author Taegyeom Lee, Taegyeom Lee School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorYoonsu Park, Yoonsu Park School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorHoyoung Kim, Hoyoung Kim orcid.org/0000-0002-5580-6373 School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorYun-Kun Hong, Yun-Kun Hong School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorEunseo Hwang, Eunseo Hwang School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorMinyoung Kim, Minyoung Kim School of Integrative Engineering, Chung-Ang University, Seoul, Republic of KoreaSearch for more papers by this authorSoo-Kil Kim, Corresponding Author Soo-Kil Kim [email protected] orcid.org/0000-0002-1753-7037 School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea Correspondence Soo-Kil Kim and Don-Hyung Ha, School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea. Email: [email protected] (S.-K.K.) and [email protected] (D.-H.H.)Search for more papers by this authorDon-Hyung Ha, Corresponding Author Don-Hyung Ha [email protected] orcid.org/0000-0003-4744-6571 School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea Correspondence Soo-Kil Kim and Don-Hyung Ha, School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea. Email: [email protected] (S.-K.K.) and [email protected] (D.-H.H.)Search for more papers by this author First published: 01 February 2022 https://doi.org/10.1002/er.7699 Funding information: Ministry of Education, Grant/Award Number: 2019R1C1C1010137; Ministry of Science and ICT, South Korea, Grant/Award Numbers: 2019M3E6A1063676, 2020R1A5A1018052 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Summary The design of robust and high-performance hydrogen evolution reaction (HER) catalysts is crucial for the scalable production of hydrogen by electrochemical water splitting. In this work, we fabricated hierarchically porous Co-Ru catalysts with excellent catalytic activity and durability in acidic media. The morphology of the Co-Ru catalysts was successfully controlled through an optimized electrochemical process. Among all Co-Ru samples prepared in this study, the Co72Ru28 catalyst exhibited the largest catalytic surface area, as well as excellent HER activity (overpotential of 26.4 mV at −10 mA cm−2) and durability. X-ray photoelectron spectroscopy measurements revealed the electron transfer between Co and Ru, indicating that the formation of the Co-Ru alloy improved the activity and durability of the catalyst. Furthermore, a proton exchange membrane water electrolyzer (PEMWE) prepared with the Co72Ru28 sample showed excellent performances (3.4 A cm−2 at 2.0 Vcell), illustrating the promising potential of the present Co-Ru catalysts as cathode materials for PEMWE systems. Supporting Information Filename Description er7699-sup-0001-Supinfo.docxWord 2007 document , 6.3 MB Appendix S1. Supporting information. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume46, Issue6May 2022Pages 7975-7987 RelatedInformation