title: Merging Single-Atom-Dispersed Silver and Carbon Nitride to a Joint Electronic System via Copolymerization with Silver Tricyanomethanide.
abstract: Herein, we present an approach to create a hybrid between single-atom-dispersed silver and a carbon nitride polymer. Silver tricyanomethanide (AgTCM) is used as a reactive comonomer during templated carbon nitride synthesis to introduce both negative charges and silver atoms/ions to the system. The successful introduction of the extra electron density under the formation of a delocalized joint electronic system is proven by photoluminescence measurements, X-ray photoelectron spectroscopy investigations, and measurements of surface ζ-potential. At the same time, the principal structure of the carbon nitride network is not disturbed, as shown by solid-state nuclear magnetic resonance spectroscopy and electrochemical impedance spectroscopy analysis. The synthesis also results in an improvement of the visible light absorption and the development of higher surface area in the final products. The atom-dispersed AgTCM-doped carbon nitride shows an enhanced performance in the selective hydrogenation of alkynes in comparison with the performance of other conventional Ag-based materials prepared by spray deposition and impregnation-reduction methods, here exemplified with 1-hexyne.
authors: Department of Colloid Chemistry, Max-Planck Institute of Colloids and Interfaces , Research Campus Golm, 14424 Potsdam, Germany.
authors: Zupeng
authors: Z
authors: Chen
authors: Institut de Chimie et des Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), ECPM, CNRS-Université de Strasbourg (UdS) UMR 7515 , 25, rue Becquerel, 67087 Strasbourg, France.
authors: Sergey
authors: S
authors: Pronkin
authors: Department of Colloid Chemistry, Max-Planck Institute of Colloids and Interfaces , Research Campus Golm, 14424 Potsdam, Germany.
authors: Tim-Patrick
authors: TP
authors: Fellinger
authors: Institut für Chemie, Sekr. TC 2, Technische Universität Berlin , Englische Str. 20, 10587 Berlin, Germany.
authors: Kamalakannan
authors: K
authors: Kailasam
authors: Gianvito
authors: G
authors: Vilé
authors: Davide
authors: D
authors: Albani
authors: Frank
authors: F
authors: Krumeich
authors: Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom.
authors: Rowan
authors: R
authors: Leary
authors: Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom.
authors: Jon
authors: J
authors: Barnard
authors: Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom.
authors: John Meurig
authors: JM
authors: Thomas
authors: Javier
authors: J
authors: Pérez-Ramírez
authors: Department of Colloid Chemistry, Max-Planck Institute of Colloids and Interfaces , Research Campus Golm, 14424 Potsdam, Germany.
authors: Markus
authors: M
authors: Antonietti
authors: Department of Colloid Chemistry, Max-Planck Institute of Colloids and Interfaces , Research Campus Golm, 14424 Potsdam, Germany.
authors: Dariya
authors: D
authors: Dontsova
keywords: atomic dispersion; carbon nitride; copolymerization; hydrogen evolution; joint electronic system; metal doping; selective hydrogenation