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Article: Robust and conductive Magnéli Phase Ti4O7 decorated on 3D-nanoflower NiRu-LDH as high-performance oxygen reduction electrocatalyst

TitleRobust and conductive Magnéli Phase Ti<inf>4</inf>O<inf>7</inf> decorated on 3D-nanoflower NiRu-LDH as high-performance oxygen reduction electrocatalyst
Authors
Keywords3D nano-flower
Agglomeration
Layered double hydroxides
Oxygen reduction reaction
Substoichiometric TiO 2
Issue Date2018
Citation
Nano Energy, 2018, v. 47, p. 309-315 How to Cite?
AbstractEscalating both electrochemically active and stable materials at a time is an important challenge in the field of catalysis till to date. Carbon as a pillar material has been used for long time due to its intrinsic properties like high conductivity and large surface area that can increase activity of electrocatalyst. However, severe drop in activity due to carbon corrosion is the main challenge. Here, we introduce robust, conductive and stable Magnéli phase Ti4O7 nano-pillar in to flower like nickel ruthenium-layered double hydroxide (3D-FL-NiRu-LDH/ Ti4O7) through an easy in situ growth approach for the first time. The decoration of Magnéli phase Ti4O7 not only significantly improves the activity but also stability of LDH nanosheet catalyst. The as-synthesized materials retain 98% of the activity after 45 h which surpasses all the reported LDH catalysts for oxygen reduction reaction under alkaline media. The key roles of Ti4O7 are to provide the effective charge transfer networks of LDH catalyst and prevent agglomeration of LDH catalysts though strongly coupled interactions evidenced by X-ray photoelectron spectroscopy (XPS). Therefore, the developed catalyst demonstrates promising conductivity, together with durability. The reported approach of introducing a robust and conductive pillar coupled with LDH catalysts provides a novel pathway for developing a highly efficient and durable electrocatalyst.
Persistent Identifierhttp://hdl.handle.net/10722/334532
ISSN
2023 Impact Factor: 16.8
2023 SCImago Journal Rankings: 4.685
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorIbrahim, Kassa Belay-
dc.contributor.authorSu, Wei Nien-
dc.contributor.authorTsai, Meng Che-
dc.contributor.authorChala, Soressa Abera-
dc.contributor.authorKahsay, Amaha Woldu-
dc.contributor.authorYeh, Min Hsin-
dc.contributor.authorChen, Hung Ming-
dc.contributor.authorDuma, Alemayehu Dubale-
dc.contributor.authorDai, Hongjie-
dc.contributor.authorHwang, Bing Joe-
dc.date.accessioned2023-10-20T06:48:49Z-
dc.date.available2023-10-20T06:48:49Z-
dc.date.issued2018-
dc.identifier.citationNano Energy, 2018, v. 47, p. 309-315-
dc.identifier.issn2211-2855-
dc.identifier.urihttp://hdl.handle.net/10722/334532-
dc.description.abstractEscalating both electrochemically active and stable materials at a time is an important challenge in the field of catalysis till to date. Carbon as a pillar material has been used for long time due to its intrinsic properties like high conductivity and large surface area that can increase activity of electrocatalyst. However, severe drop in activity due to carbon corrosion is the main challenge. Here, we introduce robust, conductive and stable Magnéli phase Ti4O7 nano-pillar in to flower like nickel ruthenium-layered double hydroxide (3D-FL-NiRu-LDH/ Ti4O7) through an easy in situ growth approach for the first time. The decoration of Magnéli phase Ti4O7 not only significantly improves the activity but also stability of LDH nanosheet catalyst. The as-synthesized materials retain 98% of the activity after 45 h which surpasses all the reported LDH catalysts for oxygen reduction reaction under alkaline media. The key roles of Ti4O7 are to provide the effective charge transfer networks of LDH catalyst and prevent agglomeration of LDH catalysts though strongly coupled interactions evidenced by X-ray photoelectron spectroscopy (XPS). Therefore, the developed catalyst demonstrates promising conductivity, together with durability. The reported approach of introducing a robust and conductive pillar coupled with LDH catalysts provides a novel pathway for developing a highly efficient and durable electrocatalyst.-
dc.languageeng-
dc.relation.ispartofNano Energy-
dc.subject3D nano-flower-
dc.subjectAgglomeration-
dc.subjectLayered double hydroxides-
dc.subjectOxygen reduction reaction-
dc.subjectSubstoichiometric TiO 2-
dc.titleRobust and conductive Magnéli Phase Ti<inf>4</inf>O<inf>7</inf> decorated on 3D-nanoflower NiRu-LDH as high-performance oxygen reduction electrocatalyst-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.nanoen.2018.03.017-
dc.identifier.scopuseid_2-s2.0-85043494033-
dc.identifier.volume47-
dc.identifier.spage309-
dc.identifier.epage315-
dc.identifier.isiWOS:000430057000032-

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