Synthesis of Hierarchical Nanoporous Microstructures via the Kirkendall Effect in Chemical Reduction Process

dc.contributor.authorGao, Ling
dc.contributor.authorPang, Chao
dc.contributor.authorHe, Dafang
dc.contributor.authorShen, Liming
dc.contributor.authorGupta, Arunava
dc.contributor.authorBao, Ningzhong
dc.contributor.otherNanjing Tech University
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.date.accessioned2023-09-28T19:11:47Z
dc.date.available2023-09-28T19:11:47Z
dc.date.issued2015
dc.description.abstractA series of novel hierarchical nanoporous microstructures have been synthesized through one-step chemical reduction of micron size Cu2O and Co3O4 particles. By controlling the reduction time, nonporous Cu2O microcubes sequentially transform to nanoporous Cu/Cu2O/Cu dented cubic composites and hollow eightling-like Cu microparticles. The mechanism involved in the complex structural evolution is explained based on oxygen diffusion and Kirkendall effect. The nanoporous Cu/Cu2O/Cu dented cubic composites exhibit superior electrochemical performance as compared to solid Cu2O microcubes. The reduction of nonporous Co3O4 also exhibits a uniform sequential reduction process from nonporous Co3O4 to porous Co3O4/CoO composites, porous CoO, porous CoO/Co composites, and porous foam-like Co particles. Nanoscale channels originate from the particle surface and eventually develop inside the entire product, resulting in porous foam-like Co microparticles. The Kirkendall effect is believed to facilitate the formation of porous structures in both processes.en_US
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.citationGao, L., Pang, C., He, D., Shen, L., Gupta, A., & Bao, N. (2015). Synthesis of Hierarchical Nanoporous Microstructures via the Kirkendall Effect in Chemical Reduction Process. In Scientific Reports (Vol. 5, Issue 1). Springer Science and Business Media LLC. https://doi.org/10.1038/srep16061
dc.identifier.doi10.1038/srep16061
dc.identifier.orcidhttps://orcid.org/0000-0002-1785-7209
dc.identifier.orcidhttps://orcid.org/0000-0002-1633-7009
dc.identifier.urihttps://ir.ua.edu/handle/123456789/11030
dc.languageEnglish
dc.language.isoen_US
dc.publisherNature Portfolio
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectHOLLOW NANOSTRUCTURES
dc.subjectMAXIMUM STRENGTH
dc.subjectNANOPARTICLES
dc.subjectOXIDATION
dc.subjectNANOCRYSTALS
dc.subjectFABRICATION
dc.subjectDIFFUSION
dc.subjectCOLLOIDS
dc.subjectROUTE
dc.subjectMultidisciplinary Sciences
dc.titleSynthesis of Hierarchical Nanoporous Microstructures via the Kirkendall Effect in Chemical Reduction Processen_US
dc.typeArticle
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