Cobalt(ii) ions and cobalt nanoparticle embedded porous organic polymers: An efficient electrocatalyst for water-splitting reactions
- Authors
- Gopi, S.; Giribabu, K.; Kathiresan, M.; Yun, K.
- Issue Date
- Jul-2020
- Publisher
- Royal Society of Chemistry
- Citation
- Sustainable Energy and Fuels, v.4, no.7, pp.3797 - 3805
- Journal Title
- Sustainable Energy and Fuels
- Volume
- 4
- Number
- 7
- Start Page
- 3797
- End Page
- 3805
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/65876
- DOI
- 10.1039/d0se00580k
- ISSN
- 2398-4902
- Abstract
- Development of a highly efficient electrocatalyst for the water-splitting reaction is essential and in this regard, the use of earth-abundant metal catalysts offers several advantages such as improved performance, cost-efficiency, etc. Recent studies have shown that the fabrication of transition metal/metal oxide nanoparticle supported carbon materials exhibit similar performances to that of bare metal/metal oxide nanoparticles. Herein, we report the preparation of an ethylenediamine interconnected triazine based porous organic polymer (EPOP) modified with Co2+ (Co-EPOP) and Co nanoparticles (Co-EPOP-300, Co-EPOP-500 and Co-EPOP-HT) via anchoring under different conditions. The amine groups on the EPOP polymer were used as ligands and as stabilizers for Co2+ and Co nanoparticles respectively. XRD and TEM analysis indicated that the Co-NPs covered a homogeneous polymer matrix. The electrocatalytic activities of Co2+/CoNP modified POPs were evaluated under standard OER and HER conditions and were compared with that of Co-NPs without polymer support. Amongst the electrocatalysts, the Co-EPOP (Co2+ anchored EPOP) sample exhibited bifunctional activity towards both the OER and HER with onset potentials of 1.638 and-0.173 V respectively. Further, the Co-EPOP catalyst showed lower Tafel slope values compared to other catalysts. Both OER and HER performances are comparable with those of reported Co based nanocatalytic systems. This journal is © The Royal Society of Chemistry.
- 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/65876)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.