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Dual-Regulated Ru by Alloying and Metal-Substrate Interaction for Energy-Efficient Hydrazine Oxidation-Paired Hydrogen Production

2026Journal article Open access
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datacite.subject.fosEngenharia e Tecnologia
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorZhang, Qijing
dc.contributor.authorWang, Jingshu
dc.contributor.authorLi, Haibo
dc.contributor.authorZeng, Suyuan
dc.contributor.authorLi, Rui
dc.contributor.authorYao, Qingxia
dc.contributor.authorChen, Hongyan
dc.contributor.authorMeng, Lijian
dc.contributor.authorQu, Konggang
dc.contributor.authorMeng, Lijian
dc.date.accessioned2026-01-20T11:21:09Z
dc.date.available2026-01-20T11:21:09Z
dc.date.issued2026
dc.description.abstractOverall water splitting (OWS) is the most potential method for large-scale hydrogen production, but the high-potential and sluggish oxygen evolution reaction (OER) greatly impedes its efficacy. Coupling the low-potential hydrazine oxidation reaction (HzOR) with the cathodic hydrogen evolution reaction (HER) has drawn widespread attention with energy-saving advantage and safe products, which necessitates the elaborate design of advanced bifunctional electrocatalysts. Herein, only using two complexes of Ru and Pd with 2,2′-bipyridine, the novel RuPd alloy/N-codoped carbon (RuPd/NC) composite was originally synthesize by direct mixing and pyrolysis, showing superior dual activity for HER and HzOR. Particularly, to deliver the current density of 10 mA cm−2, RuPd/NC merely needs the potentials of −8 and −42 mV for alkaline HER and HzOR, far outperforming Pt/C and being most advanced among the previously studied counterparts. Moreover, the two-electrode overall hydrazine splitting (OHzS) needs ultrasmall voltages of 0.042 and 0.239 V to achieve 10 and 100 mA cm−2, displaying great energy-saving feature. Moreover, the better activity for neutral HER, HzOR and OHzS on RuPd/NC was also found compared with Pt/C. The theoretical simulations uncover the water dissociation at Ru site with the greatly reduced energy barrier followed by the H desorption on the adjacent Pd site for HER, and the optimum activation energy on Ru site for HzOR, crediting to the synergistic regulation of alloying effect and metal-substrate interaction.eng
dc.identifier.citationQijing Zhang, Hongxia Yu, Siyi Wang, Haibo Li, Suyuan Zeng, Rui Li, Qingxia Yao, Qi Zhang, Ruru Chen, Lijian Meng, Konggang Qu, Dual-Regulated Ru by alloying and Metal-Substrate interaction for Energy-Efficient hydrazine Oxidation-Paired hydrogen production, Fuel, Volume 408, 2026, 137768, ISSN 0016-2361, https://doi.org/10.1016/j.fuel.2025.137768
dc.identifier.doihttps://doi.org/10.1016/j.fuel.2025.137768
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/10400.22/31570
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0016236125034945
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectRuPd alloy
dc.subjectHydrogen evolution
dc.subjectHydrazine oxidation
dc.subjectMetal-Substrate Interaction
dc.subjectDual Engineering
dc.titleDual-Regulated Ru by Alloying and Metal-Substrate Interaction for Energy-Efficient Hydrazine Oxidation-Paired Hydrogen Productioneng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleFuel
oaire.citation.volume408
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMeng
person.givenNameLijian
person.identifier236430
person.identifier.ciencia-idC31B-0091-BD12
person.identifier.orcid0000-0001-6071-3502
person.identifier.scopus-author-id7202236050
relation.isAuthorOfPublicationcb02ae05-0786-47ff-b480-2fde7ef93e0d
relation.isAuthorOfPublication.latestForDiscoverycb02ae05-0786-47ff-b480-2fde7ef93e0d

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