TY  - JOUR
AU  - Singh, Ashish
AU  - Barman, Soumitra
AU  - Rahimi, Faruk Ahamed
AU  - Dey, Anupam
AU  - Jena, Rohan
AU  - Kumar, Ravi
AU  - Mathew, Nijita
AU  - Bhattacharyya, Dibyendu
AU  - Maji, Tapas Kumar
TI  - Atomically dispersed Co<sup>2+</sup> in a redox-active COF for electrochemical CO<sub>2</sub> reduction to ethanol: unravelling mechanistic insight through operando studies
JO  - Energy & environmental science
VL  - 17
IS  - 6
SN  - 1754-5692
CY  - Cambridge
PB  - RSC Publ.
M1  - PUBDB-2025-01344
SP  - 2315 - 2325
PY  - 2024
AB  - Designing cheap, stable, and efficient electrocatalysts for selective CO<sub>2</sub> reduction to ethanol is a green and sustainable approach for converting the greenhouse gas into value-added products. In this context, developing single-atom-based electrocatalysts (SAEs) could be advantageous because of their maximum atom utilization. Here, we report the design and synthesis of a donor–acceptor-based redox-active covalent organic framework (COF), TAPA-OPE, obtained by condensation between tris-(4-aminophenyl) amine (TAPA) and oligo-(p-phenyleneethynylenes) (OPE) based dialdehyde. Owing to the presence of suitable metal chelating sites, TAPA-OPE was utilized for covalent grafting of atomic Co<sup>2+</sup> (Co-TAPA-OPE), which has been confirmed by EXAFS, HAADF-STEM, and XPS studies. Co-TAPA-OPE acts as a stable SAE for selective reduction of CO<sub>2</sub> to ethanol at −0.67 V vs. RHE. Faradaic efficiency (FE) for the ethanol formation is calculated to be 66.8
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001175941800001
DO  - DOI:10.1039/D3EE02946H
UR  - https://bib-pubdb1.desy.de/record/626265
ER  -