Heterostructure Co3O4@NiO as bifunctional electrocatalyst for high efficient urea oxidation and hydrogen evolution reaction
- Authors
- Gopi, S.; Gopal, Ramu A.; Al-Mohaimeed, A.M.; Choi, Dongjin; Yun, Kyusik
- Issue Date
- Feb-2022
- Publisher
- Elsevier
- Keywords
- Bi-metal oxide; Hydrogen evolution reaction; Spinel oxide; Urea oxidation reaction
- Citation
- Materials Letters, v.308
- Journal Title
- Materials Letters
- Volume
- 308
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82971
- DOI
- 10.1016/j.matlet.2021.131219
- ISSN
- 0167-577X
- Abstract
- Herein, the synergetic effect developed between two metal oxide nanostructure mixture Co3O4@NiO is described. The result demonstrates that composite has a promising catalyst for UOR (urea oxidation reaction) and HER (hydrogen evolution reaction). XRD, SEM, TEM and FT-IR, and XPS studies reveal the formation of Co3O4@NiO. For the electrochemical study, Co3O4@NiO displayed lower onset potential −0.123 V for HER and 1.18 V vs. RHE for UOR to deliver a standard current density of 10 mA cm−2. Importantly, with a low Tafel slope of 141 and 340 mV dec−1 for UOR and HER, respectively. Thus, this present dual incorporation Co3O4@NiO catalyst could be the potential catalyst for practical-level applications. © 2021 Elsevier B.V.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 바이오나노대학 > 바이오나노학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82971)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.