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Article: Phase-Selective Epitaxial Growth of Heterophase Nanostructures on Unconventional 2H-Pd Nanoparticles

TitlePhase-Selective Epitaxial Growth of Heterophase Nanostructures on Unconventional 2H-Pd Nanoparticles
Authors
Issue Date2020
Citation
Journal of the American Chemical Society, 2020, v. 142, n. 44, p. 18971-18980 How to Cite?
AbstractHeterostructured, including heterophase, noble-metal nanomaterials have attracted much interest due to their promising applications in diverse fields. However, great challenges still remain in the rational synthesis of well-defined noble-metal heterophase nanostructures. Herein, we report the preparation of Pd nanoparticles with an unconventional hexagonal close-packed (2H type) phase, referred to as 2H-Pd nanoparticles, via a controlled phase transformation of amorphous Pd nanoparticles. Impressively, by using the 2H-Pd nanoparticles as seeds, Au nanomaterials with different crystal phases epitaxially grow on the specific exposed facets of the 2H-Pd, i.e., face-centered cubic (fcc) Au (fcc-Au) on the (002)h facets of 2H-Pd while 2H-Au on the other exposed facets, to achieve well-defined fcc-2H-fcc heterophase Pd@Au core-shell nanorods. Moreover, through such unique facet-directed crystal-phase-selective epitaxial growth, a series of unconventional fcc-2H-fcc heterophase core-shell nanostructures, including Pd@Ag, Pd@Pt, Pd@PtNi, and Pd@PtCo, have also been prepared. Impressively, the fcc-2H-fcc heterophase Pd@Au nanorods show excellent performance toward the electrochemical carbon dioxide reduction reaction (CO2RR) for production of carbon monoxide with Faradaic efficiencies of over 90% in an exceptionally wide applied potential window from -0.9 to -0.4 V (versus the reversible hydrogen electrode), which is among the best reported CO2RR catalysts in H-type electrochemical cells.
Persistent Identifierhttp://hdl.handle.net/10722/329658
ISSN
2023 Impact Factor: 14.4
2023 SCImago Journal Rankings: 5.489
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGe, Yiyao-
dc.contributor.authorHuang, Zhiqi-
dc.contributor.authorLing, Chongyi-
dc.contributor.authorChen, Bo-
dc.contributor.authorLiu, Guigao-
dc.contributor.authorZhou, Ming-
dc.contributor.authorLiu, Jiawei-
dc.contributor.authorZhang, Xiao-
dc.contributor.authorCheng, Hongfei-
dc.contributor.authorLiu, Guanghua-
dc.contributor.authorDu, Yonghua-
dc.contributor.authorSun, Cheng Jun-
dc.contributor.authorTan, Chaoliang-
dc.contributor.authorHuang, Jingtao-
dc.contributor.authorYin, Pengfei-
dc.contributor.authorFan, Zhanxi-
dc.contributor.authorChen, Ye-
dc.contributor.authorYang, Nailiang-
dc.contributor.authorZhang, Hua-
dc.date.accessioned2023-08-09T03:34:24Z-
dc.date.available2023-08-09T03:34:24Z-
dc.date.issued2020-
dc.identifier.citationJournal of the American Chemical Society, 2020, v. 142, n. 44, p. 18971-18980-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/329658-
dc.description.abstractHeterostructured, including heterophase, noble-metal nanomaterials have attracted much interest due to their promising applications in diverse fields. However, great challenges still remain in the rational synthesis of well-defined noble-metal heterophase nanostructures. Herein, we report the preparation of Pd nanoparticles with an unconventional hexagonal close-packed (2H type) phase, referred to as 2H-Pd nanoparticles, via a controlled phase transformation of amorphous Pd nanoparticles. Impressively, by using the 2H-Pd nanoparticles as seeds, Au nanomaterials with different crystal phases epitaxially grow on the specific exposed facets of the 2H-Pd, i.e., face-centered cubic (fcc) Au (fcc-Au) on the (002)h facets of 2H-Pd while 2H-Au on the other exposed facets, to achieve well-defined fcc-2H-fcc heterophase Pd@Au core-shell nanorods. Moreover, through such unique facet-directed crystal-phase-selective epitaxial growth, a series of unconventional fcc-2H-fcc heterophase core-shell nanostructures, including Pd@Ag, Pd@Pt, Pd@PtNi, and Pd@PtCo, have also been prepared. Impressively, the fcc-2H-fcc heterophase Pd@Au nanorods show excellent performance toward the electrochemical carbon dioxide reduction reaction (CO2RR) for production of carbon monoxide with Faradaic efficiencies of over 90% in an exceptionally wide applied potential window from -0.9 to -0.4 V (versus the reversible hydrogen electrode), which is among the best reported CO2RR catalysts in H-type electrochemical cells.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titlePhase-Selective Epitaxial Growth of Heterophase Nanostructures on Unconventional 2H-Pd Nanoparticles-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jacs.0c09461-
dc.identifier.pmid33086784-
dc.identifier.scopuseid_2-s2.0-85095667898-
dc.identifier.volume142-
dc.identifier.issue44-
dc.identifier.spage18971-
dc.identifier.epage18980-
dc.identifier.eissn1520-5126-
dc.identifier.isiWOS:000585703000025-

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