Premium
Ultrathin 2D Graphitic Carbon Nitride on Metal Films: Underpotential Sodium Deposition in Adlayers for Sodium‐Ion Batteries
Author(s) -
Chen Lu,
Yan Runyu,
Oschatz Martin,
Jiang Lei,
Antonietti Markus,
Xiao Kai
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202000314
Subject(s) - electrolyte , materials science , nitride , carbon fibers , carbon nitride , anode , chemical vapor deposition , deposition (geology) , graphitic carbon nitride , sodium , metal , inorganic chemistry , chemical engineering , thin film , layer (electronics) , electrode , nanotechnology , chemistry , metallurgy , composite material , catalysis , organic chemistry , paleontology , photocatalysis , sediment , composite number , engineering , biology
Efficient and low‐cost anode materials for the sodium‐ion battery are highly desired to enable more economic energy storage. Effects on an ultrathin carbon nitride film deposited on a copper metal electrode are presented. The combination of effects show an unusually high capacity to store sodium metal. The g‐C 3 N 4 film is as thin as 10 nm and can be fabricated by an efficient, facile, and general chemical‐vapor deposition method. A high reversible capacity of formally up to 51 Ah g −1 indicates that the Na is not only stored in the carbon nitride as such, but that carbon nitride activates also the metal for reversible Na‐deposition, while forming at the same time an solid electrolyte interface layer avoiding direct contact of the metallic phase with the liquid electrolyte.