Казанский (Приволжский) федеральный университет, КФУ
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CO2 ELECTROCHEMICAL REDUCTION BY EXOHEDRAL N-PYRIDINE DECORATED METAL-FREE CARBON NANOTUBES
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2020
Языканглийский
  • Яхваров Дмитрий Григорьевич, автор
  • Библиографическое описание на языке оригинала CO2 electrochemical reduction by exohedral N-pyridine decorated metal-free carbon nanotubes / G. Tuci, J. Filippi, A. Rossin, L. Luconi, C. Pham-Huu, D. Yakhvarov, F. Vizza, G. Giambastiani // Energies – 2020. – V. 13(11). – N. 2703.
    Аннотация first_page settings Open AccessArticle CO2 Electrochemical Reduction by Exohedral N-Pyridine Decorated Metal-Free Carbon Nanotubes by Giulia Tuci 1, Jonathan Filippi 1, Andrea Rossin 1 [OrcID] , Lapo Luconi 1, Cuong Pham-Huu 2,*, Dmitry Yakhvarov 3 [OrcID] , Francesco Vizza 1,* [OrcID] and Giuliano Giambastiani 1,2,3,* [OrcID] 1 Institute of Chemistry of OrganoMetallic Compounds (ICCOM-CNR) and Consorzio INSTM, Via Madonna del Piano, 10-50019 Sesto F.no, Florence, Italy 2 Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), UMR 7515 CNRS-University of Strasbourg (UdS), 25, rue Becquerel, CEDEX 02, 67087 Strasbourg, France 3 Alexander Butlerov Institute of Chemistry, Kazan Federal University, 420008 Kazan, Russia * Authors to whom correspondence should be addressed. Energies 2020, 13(11), 2703; https://doi.org/10.3390/en13112703 Received: 1 May 2020 / Revised: 18 May 2020 / Accepted: 21 May 2020 / Published: 28 May 2020 (This article belongs to the Special Issue Electrocatalysts for Fuel Cells and Hydrogen Production) Download PDF Browse Figures Abstract Electrochemical CO2 reduction reaction (CO2RR) to fuels and chemicals represents nowadays one of the most challenging solutions for renewable energy storage and utilization. Among the possible reaction pathways, CO2-to-CO conversion is the first (2e−) reduction step towards the production of a key-feedstock that holds great relevance for chemical industry. In this report we describe the electrocatalytic CO2-to-CO reduction by a series of tailored N-decorated carbon nanotubes to be employed as chemoselective metal-free electrocatalysts. The choice of an exohedral functionalization tool for the introduction of defined N-groups at the outer surface of carbon nanomaterials warrants a unique control on N-configuration and electronic charge density distribution at the dangling heterocycles. A comparative electrochemical screening of variably N-substituted carbon nanomaterials in CO2RR together with an analysis of the electronic charge density distribution at each heterocycle have suggested the existence of a coherent descriptor for the catalyst's CO faradaic efficiency (FECO). Evidence allows to infer that N-configuration (N-pyridinic vs. N-pyrrolic) of exohedral dopants and electronic charge density distribution at the N-neighboring carbon atoms of each heterocycle are directly engaged in the activation and stabilization of CO2 and its reduction intermediates.
    Ключевые слова CO2 reduction reaction (CO2RR); metal-free electrocatalysts; pyridine nuclei; exohedral chemical grafting; multi-walled carbon nanotubes
    Название журнала Energies
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