@article{3bfa78b52c8a4c05ad75b1e1030713e5,
title = "Facile electrosynthesis of polyaniline|gold nanoparticle core-shell nanofiber for efficient electrocatalytic CO2 reduction",
abstract = "Electrochemical CO2 reduction (e-CO2RR) into valuable chemicals has been considered as a promising approach towards the carbon-neutral economy. The development of facile and scalable electrosynthetic methods to prepare electrocatalysts with high activity and selectivity is therefore of great importance. In this work, we developed a facile and scalable electrosynthetic approach to prepare core-shell-structured polyaniline|gold nanoparticles nanofiber (nanoPANI|Au) as an efficient electrocatalyst for e-CO2RR. The growth mechanism of nanoPANI|Au was thoroughly investigated, and the applied current used for the electrosynthesis of nanoPANI|Au was found to play a crucial role in determining the structure, size, and electrochemically-available surface area (ECSA) of deposited polyaniline and gold. Under optimal conditions, the prepared nanoPANI|Au exhibited a satisfactory selectivity (Faradaic efficiency: 70.0 ± 2.1%) towards the generation of CO from e-CO2RR with a high turnover frequency of 0.40 ± 0.02 s−1 and a CO-mass activity of 5.67 ± 0.31 A g−1 at a moderate overpotential of 0.59 V in NaHCO3 (0.1 M). This work opens a new avenue for the preparation of core-shell-structured conducting polymer|metal nanoparticles as the electrocatalysts for e-CO2RR.",
author = "Wang, {Tzu Hsuan} and Lin, {Chia Yu} and Huang, {Yu Cheng} and Li, {Chia Ying}",
note = "Funding Information: Financial support from the National Science and Technology Council of Taiwan ( 110-2221-E-006-018-MY3 and 111-2221-E-006-019-MY3 ). This work was also financially supported by the Hierarchical Green-Energy Materials (Hi-GEM) Research Center , from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) and the National Science and Technology Council ( 111-2634-F-006-008 ) in Taiwan. The authors gratefully acknowledge the use of EM000800 of MOST 110-2731-M-006-001 belonging to the Core Facility Center of National Cheng Kung University. Funding Information: Financial support from the National Science and Technology Council of Taiwan (110-2221-E-006-018-MY3 and 111-2221-E-006-019-MY3). This work was also financially supported by the Hierarchical Green-Energy Materials (Hi-GEM) Research Center, from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) and the National Science and Technology Council (111-2634-F-006-008) in Taiwan. The authors gratefully acknowledge the use of EM000800 of MOST 110-2731-M-006-001 belonging to the Core Facility Center of National Cheng Kung University. Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",
year = "2023",
month = jan,
day = "1",
doi = "10.1016/j.electacta.2022.141500",
language = "English",
volume = "437",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",
}