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Initially, Ru\u2010doped CuO flakes are synthesized using a coprecipitation method followed by transformation into Ru\/Cu composites through a strategy involving pulsed laser irradiation in liquid. Specifically, the optimized Ru\/Cu\u20104 composite not only demonstrates a low overpotential of 182\u00a0mV at 10 mA\u00b7cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    for the HER but also an ultralow working potential of 0.078\u00a0V (versus\u00a0reversible hydrogen electrode) for the FOR at the same current density. Remarkably, the FOR\u2225HER\u2010coupled electrolyzer employing the Ru\/Cu\u20104\u2225Ru\/Cu\u20104 system achieves H\n                    <jats:sub>2<\/jats:sub>\n                    production at both electrodes with a cell voltage of 0.42 V at 10 mA\u00b7cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    while co\u2010synthesizing formic acid. Furthermore, density functional theory analyses elucidate that the superior activity of the Ru\/Cu composite originates from optimized adsorption energies of reactive species on the catalyst surfaces during the HER and FOR, facilitated by the synergistic coupling between Ru and Cu. This study presents an alternative strategy for synthesizing highly effective electrocatalytic materials for use in energy\u2010efficient H\n                    <jats:sub>2<\/jats:sub>\n                    production with the cosynthesis of value\u2010added chemicals suitable for practical applications.\n                  <\/jats:p>","DOI":"10.1002\/smll.202403999","type":"journal-article","created":{"date-parts":[[2024,10,18]],"date-time":"2024-10-18T04:07:06Z","timestamp":1729224426000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Deciphering the Electronic Coupling Dynamics of Laser\u2010induced Ru\/Cu Electrocatalyst for Dual\u2010Side Hydrogen Production and Formic Acid Co\u2010synthesis via DFT Analysis"],"prefix":"10.1002","volume":"21","author":[{"given":"Sagyntay","family":"Sarsenov","sequence":"first","affiliation":[{"name":"Department of Chemistry (BK21 FOUR) Research Institute of Natural Sciences Gyeongsang National University  Jinju 52828 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raja Arumugam","family":"Senthil","sequence":"additional","affiliation":[{"name":"Department of Chemistry (BK21 FOUR) Research Institute of Natural Sciences Gyeongsang National University  Jinju 52828 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ahreum","family":"Min","sequence":"additional","affiliation":[{"name":"Core\u2010Facility Center for Photochemistry &amp; Nanomaterials Gyeongsang National University  Jinju 52828 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anuj","family":"Kumar","sequence":"additional","affiliation":[{"name":"Nano\u2010Technology Research Laboratory Department of Chemistry GLA University  Mathura Uttar Pradesh 281406 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheol Joo","family":"Moon","sequence":"additional","affiliation":[{"name":"Core\u2010Facility Center for Photochemistry &amp; Nanomaterials Gyeongsang National University  Jinju 52828 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juhyeon","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Chemistry (BK21 FOUR) Research Institute of Natural Sciences Gyeongsang National University  Jinju 52828 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5729-5418","authenticated-orcid":false,"given":"Myong Yong","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Chemistry (BK21 FOUR) Research Institute of Natural Sciences Gyeongsang National University  Jinju 52828 Republic of Korea"},{"name":"Core\u2010Facility Center for Photochemistry &amp; Nanomaterials Gyeongsang National University  Jinju 52828 Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,10,18]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-021-24529-3"},{"key":"e_1_2_8_1_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-020-14462-2"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s43247-022-00626-z"},{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201803291"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/aesr.202100097"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202301576"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-022-32652-y"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.1039\/C5TA02974K"},{"key":"e_1_2_8_5_3","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2023.146441"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apcatb.2022.122295"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1039\/D4TA02120G"},{"key":"e_1_2_8_7_1","first-page":"558","volume":"57","author":"T\u00fcys\u00fcz H.","year":"2024","journal-title":"Acc. 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