Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 이상욱 | - |
dc.date.accessioned | 2022-04-06T00:29:11Z | - |
dc.date.available | 2022-04-06T00:29:11Z | - |
dc.date.issued | 2021-11 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v. 13, NO 45, Page. 53725-53735 | en_US |
dc.identifier.issn | 19448244 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsami.1c13694 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/169740 | - |
dc.description.abstract | The oxygen evolution reaction (OER) plays a key role in determining the performance of overall water splitting, while a core technological consideration is the development of cost-effective, efficient, and durable catalysts. Here, we demonstrate a robust reduced Fe-oxide@ NiCo2O4 bilayered non-precious-metal oxide composite as a highly efficient OER catalyst in an alkaline medium. A bilayered oxide composite film with an interconnected nanoflake morphology (Fe2O3@NiCo2O4) is reduced in an aqueous NaBH4 solution, which results in a mosslike Fe3O4@NiCo2O4 (reduced Fe-oxide@NiCo2O4; rFNCO) nanostructured film with an enhanced electrochemical surface area. The rFNCO film demonstrates an outstanding OER activity with an extraordinary low overpotential of 189 mV at 10 mA cm−2 (246 mV at 100 mA cm−2 ) and a remarkably small Tafel slope of 32 mV dec−1 . The film also shows excellent durability for more than 50 h of continuous operation, even at 100 mA cm−2 . Furthermore, density functional theory calculations suggest that the unintentionally in situ doped Ni during the reduction reaction possibly improves the OER performance of the rFNCO catalyst shifting d-band centers of both Fe and Ni active sites. | en_US |
dc.description.sponsorship | The authors acknowledge the financial support from the National Research Foundation (NRF) of Korea (grant nos. 2018R1D1A1B07049046, 2021R1A2B5B01001796, and 2021R1A4A5031805). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | bilayered Fe3O4/NiCo2O4, chemical reduction | en_US |
dc.subject | metal interdiffusion | en_US |
dc.subject | electrocatalytic water splitting | en_US |
dc.subject | oxygen evolution reaction (OER) | en_US |
dc.title | Experimental and Theoretical Insights into the Borohydride-Based Reduction-Induced Metal Interdiffusion in Fe-Oxide@NiCo2O4 for Enhanced Oxygen Evolution | en_US |
dc.type | Article | en_US |
dc.relation.no | 45 | - |
dc.relation.volume | 13 | - |
dc.identifier.doi | 10.1021/acsami.1c13694 | - |
dc.relation.page | 53725-53735 | - |
dc.relation.journal | ACS APPLIED MATERIALS & INTERFACES | - |
dc.contributor.googleauthor | Jo, Yongcheol | - |
dc.contributor.googleauthor | Cho, Sangeun | - |
dc.contributor.googleauthor | Seo, Jiwoo | - |
dc.contributor.googleauthor | Ahmed, Abu Talha Aqueel | - |
dc.contributor.googleauthor | Lee, Chi Ho | - |
dc.contributor.googleauthor | Seok, Jun Ho | - |
dc.contributor.googleauthor | Hou, Bo | - |
dc.contributor.googleauthor | Patil, Supriya A. | - |
dc.contributor.googleauthor | Park, Youngsin | - |
dc.contributor.googleauthor | Shrestha, Nabeen K. | - |
dc.contributor.googleauthor | Lee, Sang Uck | - |
dc.contributor.googleauthor | Kim, Hyungsang | - |
dc.contributor.googleauthor | Im, Hyunsik | - |
dc.relation.code | 2021009211 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING | - |
dc.identifier.pid | sulee | - |
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