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Graphitic Carbon Nitride Nanosheet–Carbon Nanotube Three‐Dimensional Porous Composites as High‐Performance Oxygen Evolution Electrocatalysts
Author(s) -
Ma Tian Yi,
Dai Sheng,
Jaroniec Mietek,
Qiao Shi Zhang
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201403946
Subject(s) - nanosheet , graphitic carbon nitride , catalysis , materials science , carbon nanotube , graphene , carbon fibers , oxygen evolution , nitride , nanostructure , stacking , water splitting , nanotechnology , carbon nitride , chemical engineering , electrochemistry , composite number , composite material , chemistry , electrode , photocatalysis , organic chemistry , layer (electronics) , engineering
A new class of highly efficient oxygen evolution catalysts has been synthesized through the self‐assembly of graphitic carbon nitride nanosheets and carbon nanotubes, driven by π–π stacking and electrostatic interactions. Remarkably, the catalysts exhibit higher catalytic oxygen evolution activity and stronger durability than Ir‐based noble‐metal catalysts and display the best performance among the reported nonmetal catalysts. This good result is attributed to the high nitrogen content and the efficient mass and charge transfer in the porous three‐dimensional nanostructure.