Bulk Nanostructuring of Janus‐Type Metal Electrodes

peer-reviewed
Erstveröffentlichung
2020-07-28Authors
Gao, Dandan
Liu, Si
Liu, Rongji
Streb, Carsten
Wissenschaftlicher Artikel
Published in
Chemistry – A European Journal ; 26 (2020), 49. - S. 11109-11112. - ISSN 0947-6539. - eISSN 1521-3765
Link to original publication
https://dx.doi.org/10.1002/chem.202001420Faculties
Fakultät für NaturwissenschaftenInstitutions
Institut für Anorganische Chemie I (Materialien und Katalyse)External cooperations
Chinese Academy of SciencesHelmholtz-Institut Ulm
Document version
published version (publisher's PDF)Abstract
Face-dependent bulk nanostructuring of Cu metal electrodes is reported, leading to Janus-type electrodes where one face features Cu(OH)2 nanowires while the other face is decorated with CuO nanoflowers. Thermal conversion into CuxO nanowires/nanoflowers as well as chemical reduction to elemental Cu nanowires/nanoflowers demonstrate the versatility of the approach. Initial electrocatalytic studies show the electrochemical reactivity of the composite electrodes.The stable deposition of reactive nanostructures on metal electrodes is a key process for modern technologies including energy conversion/ storage, electrocatalysis or sensing. Here a facile, scalable route is reported, which allows the bulk nanostructuring of copper foam electrodes with metal, metal oxide or metal hydroxide nanostructures. A concentration-gradient driven synthetic approach enables the fabrication of Janus-type electrodes where one face features Cu(OH)2 nanowires, while the other face features CuO nanoflowers. Thermal or chemical conversion of the nanostructured surfaces into copper oxide or copper metal is possible whilst retaining the respective nanostructure morphologies. As proof of concept, the functionalized electrodes are promising in electrocatalytic water oxidation and water reduction reactions.
Is supplemented by
https://chemistry-europe.onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fchem.202001420&file=chem202001420-sup-0001-misc_information.pdfSubject headings
[GND]: Elektrokatalyse | Selbstorganisation[LCSH]: Electrocatalysis | Metallic oxides | Self-assembly (Chemistry)
[Free subject headings]: metal oxide | nanostructure | surface modification
[DDC subject group]: DDC 540 / Chemistry & allied sciences
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Please use this identifier to cite or link to this item: http://dx.doi.org/10.18725/OPARU-40437
Gao, Dandan et al. (2021): Bulk Nanostructuring of Janus‐Type Metal Electrodes. Open Access Repositorium der Universität Ulm und Technischen Hochschule Ulm. http://dx.doi.org/10.18725/OPARU-40437
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