Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/94186
DC Field | Value | Language |
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dc.contributor | Department of Building and Real Estate | en_US |
dc.contributor | Research Institute for Sustainable Urban Development | en_US |
dc.creator | Dai, Y | en_US |
dc.creator | Yu, J | en_US |
dc.creator | Wang, J | en_US |
dc.creator | Shao, Z | en_US |
dc.creator | Guan, D | en_US |
dc.creator | Huang, YC | en_US |
dc.creator | Ni, M | en_US |
dc.date.accessioned | 2022-08-11T01:07:41Z | - |
dc.date.available | 2022-08-11T01:07:41Z | - |
dc.identifier.issn | 1616-301X | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/94186 | - |
dc.language.iso | en | en_US |
dc.publisher | Wiley-VCH | en_US |
dc.rights | © 2022 Wiley-VCH GmbH | en_US |
dc.rights | This is the peer reviewed version of the following article: Dai, Y., Yu, J., Wang, J., Shao, Z., Guan, D., Huang, Y.-C., Ni, M., Bridging the Charge Accumulation and High Reaction Order for High-Rate Oxygen Evolution and Long Stable Zn-Air Batteries. Adv. Funct. Mater. 2022, 32, 2111989, which has been published in final form at https://doi.org/10.1002/adfm.202111989. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. | en_US |
dc.title | Bridging the charge accumulation and high reaction order for high-rate oxygen evolution and long stable Zn-air batteries | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 32 | en_US |
dc.identifier.issue | 24 | en_US |
dc.identifier.doi | 10.1002/adfm.202111989 | en_US |
dcterms.abstract | Combining noble metals with nonnoble metals is an attractive strategy to balance the activity and cost of electrocatalysts. However, a guiding principle for selecting suitable nonnoble metals is still lacking. Herein, a thorough mechanistic study on the platform oxygen evolution reaction (OER) electrocatalyst of Ir@Co3O4 to deeply understand the synergy between Ir and Co3O4 for the boosted OER has been carried out. It is demonstrated that the pseudocapacitive feature of Co3O4 plays a key role in accumulating sufficient positive charge [Q], while the Ir sites are responsible for achieving a high reaction order (β), synergistically contributing to the high OER activity of Ir@Co3O4 through the rate law equation. Specifically, Ir@Co3O4 displays a low overpotential of 280 mV at 10 mA cm−2 with a small Ir loading of 1.4 wt%. Ir@Co3O4 is further applied to Zn-air batteries, which enables a low charging potential and thus alleviates the oxidative corrosion of the air electrode, leading to improved cycle stability of 210 h at 20 mA cm−2. This work demonstrates that anchoring active noble metal sites (for high β) on pseudocapacitive supports (for high [Q]) is highly favorable to the OER process, providing a clear guidance for boosting the utilization of noble metals in electrocatalysis. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Advanced functional materials, 10 June 2022, v. 32, no. 24, 2111989 | en_US |
dcterms.isPartOf | Advanced functional materials | en_US |
dcterms.issued | 2022-06 | - |
dc.identifier.scopus | 2-s2.0-85126057300 | - |
dc.identifier.eissn | 1616-3028 | en_US |
dc.identifier.artn | 2111989 | en_US |
dc.description.validate | 202208 bcrc | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | a1642 | - |
dc.identifier.SubFormID | 45722 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Dai_Bridging_Charge_Accumulation.pdf | Pre-Published version | 2.24 MB | Adobe PDF | View/Open |
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